The answer is A. carbon monoxide, and, as you say, that pollutant is mainly caused by the burn of fossil fuels providing from the energy transformation industries, like petrol we use in cars for our transportation, for example.
Answer: carbon monoxide
Explanation: trust bro, trust.
which correctly describes the relationship between photosynthesis and respiration? group of answer choices photosynthesis only occurs in plants and respiration only occurs in animals. atp molecules are produced in photosynthesis and used up in respiration. respiration stores energy in energy-rich, carbon-based molecules, while photosynthesis releases energy from energy-rich carbon-based molecules. photosynthesis stores energy in energy-rich, carbon-based molecules, while respiration releases energy from energy-rich carbon-based molecules. both photosynthesis and respiration consume more atp than they produce.
Water and carbon dioxide are changed into oxygen and glucose during photosynthesis. The plant consumes glucose and produces oxygen as a byproduct. Oxygen and glucose are transformed into water and carbon dioxide during cellular respiration.
By-products of the process include carbon dioxide, water, and ATP, which is turned into energy. Which of the following best describes how respiration and photosynthesis interact?
The response is (B) While respiration releases energy, photosynthesis stores it in sophisticated organic molecules.
Cellular respiration transforms light energy into heat energy, whereas photosynthesis transforms light energy into chemical energy.
Through a sequence of biological events, both photosynthesis and respiration entail the transformation of energy from one form to another. ATP is used and produced in both processes in membrane-based reactions, and are under the control of enzymes.
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help please i will give brainliest and 80 points!!
Throat to esophagus in humans deor ⇒Heart to lungs medial⇒ Throat to esophagus in cats anterior⇒Ear to eye dorsal⇒ Hair to skeletal muscle deep⇒ Abdomen to thorax inferior 4⇒ Thumb to ring finger superior.
What is the main function of skeletal muscle?The most common of the three forms of muscles in vertebrates is skeletal muscle, often called as voluntary muscle. Fibrous connective tissue that connects skeletal to the bones, and these muscles are also what move bodily parts in relation to one another.
What substances make up skeletal muscle?Millions of muscle fibers are wrapped in collagenous sheaths to form each skeletal muscle. Fasciculi are indeed the individual bundle of muscular fibers that make up skeletal muscles. The definition of the concept is indeed the outermost connective tissue sheath that encircles the entire muscle.
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The complete question is -
Use directional terminology to describe these relationships.
Throat to esophagus in humans_____________
Heart to lungs___________
Throat to esophagus in cats_____________
Ear to eye_______________
Hair to skeletal muscle_____________
Abdomen to thorax_____________
Thumb to ring finger___________
So when the throat meets the esophagus through the windpipe in your lower body parts, the answer does not come out
a plant cannot conduct light reaction if its cells do not contain
Answer:
firstly it doesn't conduct light , it absorbs it through the chlorphyll
In biology , you would need to use the correct and appropriate terminologies to get marked in a biology exam
which atp-producing process uses light energy? which term describes atp production resulting from the capture of light energy by chlorophyll? oxidative phosphorylation substrate-level phosphorylation dephosphorylation photophosphorylation
Photosynthesis is the atp-producing process which uses light energy.
Photophosphorylation is the term describes atp production resulting from the capture of light energy by chlorophyll.
Photosynthesis is the process by which light energy is converted into chemical energy in the form of sugars. Using light energy, oxygen is produced as a byproduct while carbon dioxide and water are converted into glucose (or other sugars).
ADP is converted to ATP by the process of photophosphorylation using light energy from photosynthesis. Energy-dense ATP molecules are produced when the ADP molecule is lighted by transferring the phosphate group into it.
Two types of photophosphorylation exists:
1. Circular Photophosphorylation - For instantaneous energy for the cells, the electrons are moved from ADP to ATP throughout this procedure. This procedure typically uses Photosystem I and chlorophyll P700 and occurs in the thylakoid membrane. The cyclic movement of electrons during the synthesis of ATP molecules is known as cyclic photophosphorylation.
2. Non- cyclic Photophosphorylation - Utilizing the energy from excited electrons produced by Photosystem II, the process of photophosphorylation produces ATP molecules. Because the primary acceptor transports the electrons released by P700 before they are finally transferred to NADP, this process is not cyclic.
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under certain circumstances, the actin and myosin myofilaments can be extracted from muscle cells and placed in a beaker. they subsequently bind together to form long strands of actin and myosin. what substance could be added to the beaker to make the actin and myosin unbind? group of answer choices
Another ATP-binding site on myosin is where enzymatic activity converts ATP to ADP, releasing energy and an inorganic phosphate molecule. When ATP binding causes myosin to release actin.
What is the function myosin?The first molecular motor, myosin, is a protein that transforms chemical energy in the form of ATP into mechanical energy to produce force and movement.
What components make up myosin?A head, neck, and tail domain make up the majority of myosin molecules. With the exception of myosin VI, which moves toward the pointed (-) end of the filament, the head domain attaches the filamentous actin and produces force by ATP hydrolysis as it "walks" along the filament towards the barbed (+) end.
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what is the equation for photosynthesis? what are the two steps and where do they occur in the chloroplast? what is photosystem 2 and what happens there? what happens while electrons are traveling between ps2 and ps1? how is atp generated? what is the role of ferredoxin? what happens to water at ps2? what is cyclic photophosphorylation? describe chemiosmosis what is the role of atp synthase?
The process of photosynthesis is commonly written as:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
The light-dependent and light-independent reactions are the two steps. The light reactions of photosynthesis take place in the thylakoid membrane, whereas the dark reactions are located in the chloroplast stroma.
In higher plants, algae, and cyanobacteria, a membrane protein supercomplex called photosystem II (PSII) carries out the first step of photosynthesis. To accelerate a transmembrane charge separation, it absorbs sunlight.
To begin photosynthesis, a photon interacts with photosystem II's antenna pigments. The hydrogen ions are pumped into the interior of the thylakoid by the electron transport chain after the energy passes through the reaction center, which contains chlorophyll a. A significant ion concentration is created by this action.
During photosynthesis, it is the conversion of ADP to ATP utilizing solar energy. In the mitochondria of a cell, the process of cellular respiration also results in the formation of ATP.
Chloroplasts include ferredoxin (Fd), an enzyme that facilitates electron transport and has an iron-sulfur cluster. When being oxidized or reduced, its iron atoms accept or release electrons, which is how it participates in the photosynthesis process.
Hydrogen ions, oxygen ions, and electrons are separated from water. Within the thylakoid lumen, oxygen and protons created by the splitting of water are discharged.
Cyclic photophosphorylation, is described as the production of ATP related to electron transport that is only activated by Photosystem I (700 nm). The particular Photosystem II inhibitors CMU, DCMU, and orthophenanthroline have no impact on this process.
The enzyme that produces ATP via chemiosmosis is called ATP synthase. It permits protons to cross the membrane and generates ATP by phosphorylating adenosine diphosphate (ADP) with the free energy difference. In addition to mitochondria and chloroplasts, most bacteria and archaea also produce ATP by chemiosmosis.
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in a dna double helix, adenine pairs with and guanine pairs with . a. cytosine... thymine b. uracil... cytosine c. guanine... adenine d. thymine... cytosine
In a DNA double helix, adenine pairs with Thymine and guanine pairs with cytosine.
The nitrogenous bases present in DNA are purine (guanine and adenine) and pyrimidine (thymine and cytosine). The process to complementary base pairing rule, the number of purines in DNA is equal to the number of pyrimidines which means in DNA, adenine (A) forms a bond with thymine (T), and guanine (G) forms a bond with cytosine (C).
The number of bonds present between A–T is two ,on the other hand bond between G–C is three. Which means G–C bonds are very hard to break. Uracil is a nitrogenous base present in RNA (ribonucleic acid) and is absent in DNA.
Hence ,the correct option is d
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A cell uses oxygen to break down molecules, generating energy.
A. cellular respiration
B. glycolysis
C. photosynthesis
Answer:
A
Explanation:
a muscle fiber is stimulated with increasing frequency individual twitches be to summate if no relaxation occurs between twitches the contraction is called
A muscle fiber is stimulated with increasing frequency individual twitches be to summate if no relaxation occurs between twitches the contraction is called Fused tetany .
Fused tetanus is when the muscle fibers are not relaxed between stimuli and it occurs during a high rate of stimulation. A fused tetanic contraction is measured as strongest single-unit twitch in contraction. When tetanized, the contracting tension in the muscle remains constant in a steady state.
Fused tetanus is caused by electrolyte imbalances most often low blood calcium levels. It's important to talk to your healthcare provider if you're experiencing tetany. They may require immediate medical treatment.
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Which option best describes the purpose of carbohydrates?
O food to be converted into a source of energy
O protective insulation for nerves
O critical component in muscle tissue
a form of long-term energy storage
the transformation of food into a fuel source.
A is the ideal answer.
Describe carbs.Molecular sugars make up carbohydrates, or carbs. One of the three primary nutrients included in meals and beverages, together with proteins and fats, is carbohydrate.
The body converts carbs to glucose. The primary fuel for your body's cells, tissues, and organs is glucose, also known as blood sugar. The liver and muscles can store glucose for later use or it might be used right away.
Why are carbohydrates necessary?The body receives glucose from carbohydrates, which is then transformed into energy for use during physical activity and maintaining biological functions.
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Kareem had a nervous habit of chewing on the inner lining of his lip and the
lip grew thicker and thicker. Kareem's dentist noticed his thickened lip and
suggested he have it checked. A biopsy revealed hyperplasia and scattered
areas of dysplasia, but no evidence of neoplasia. What do these terms mean?
Did Kareem have cancer of the mouth?
The terms that are related to the condition that kareem has are defined as: Hyperplasia is known as a form of cellular adaptation to noxa in which there is an increase in the number of cells in some organ or tissue and dysplasia as the change in cell appearance due to alterations in its maturation.
What are the definition of this terms?Hyperplasia is a form of adaptation that cells have in which there is an increase in their number, resulting in an increase in the size of the organ or tissue, in this case in the lip, resulting in an increase in thickness. In terms of dysplasia, it is an abnormality that occurs in their appearance due to the maturation that is taking place. Dysplasia can have different pathways such as being able to reach cellular adaptation through hyperplasia or transform into a neoplasia.
As for neoplasia, it is called an abnormal mass of tissue, usually related to the word tumor. A neoplasm can be benign, this is when the cells do not spread and the malignant ones spread to nearby tissues.
Kareem does not have cancer, since what was seen in the biopsy is nothing more than forms of adaptation that the cells have in the face of damage, but the dysplasia that can be noticed can end up in a neoplasm if the noxa continues for a long time
Therefore, we can confirm that hyperplasia and dysplasia are forms of adaptation and this are not signs of cancer.
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Because diffusion depends upon random article movements substances diffuse across membrane with out requiring the cell to?c
Expansion diffusion, stimulation diffusion, and relocation diffusion are the three basic varieties of this phenomenon.
What is Diffusion ?Diffusion is the overall net movement of anything from a higher concentration to a lower concentration. A gradient in the Gibbs free energy or chemical potential drives diffusion.A substance diffuses when it moves from a region of high concentration to one of lower concentration. When particles in liquids and gases randomly collide and disperse, diffusion takes place. For living things, diffusion is a crucial mechanism because it governs how molecules enter and exit cells.When a drug diffuses, it usually moves from a high concentration location to a low concentration area until the concentration is the same everywhere in the space.In order to achieve equilibrium, diffusion is the random movement of molecules with a net direction toward areas of lower concentration. When tiny molecules travel through the lipid bilayer of a cell membrane, simple passive diffusion takes place.To know more about Diffusion please click here ; https://brainly.com/question/94094
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In a cell undergoing meiosis, if synaptonemal complexes form or are still present, what process or processes have occurred?.
The synaptonemal complex , which mediates the pairing of homologous chromosomes,the critical significance in chromosome synapsis and genetic recombination, its exact molecular activity is still unknown.
When during meiosis do Synaptonemal complexes form or are still present?
Nuclear division occurs twice during meiosis, producing four nuclei and typically four daughter cells, each of which has half as many chromosomes as the parent cell.The first divides homologs, whereas the second divides chromatids into individual chromosomes, much like mitosis. When chromosomes of the same type are paired together during meiosis, a biological event called crossing over takes place.Parts of the chromosome can be exchanged when two chromosomes, one from the mother and one from the father, line up.The same genes may be present on the two chromosomes in different versions. During meiotic prophase, the synaptonemal complex (SC), a highly organized proteinaceous structure, forms at the junction of aligned homologous chromosomes.It has been shown that the SC has a role in both the stabilization of homolog pairing and the promotion of interhomolog crossovers (COs). By means of homologous recombination, chromosomal fragments are exchanged (crossover creation).When a cell exits pachytene and during the diplotene stage, the SC disassembles and homologous chromosomal arms separate. Meiosis increases genetic diversityEach gamete has a unique DNA set because of recombination and independent assortment during meiosis.The resultant zygote has a special set of genes as a result. The single option that does not take place during mitosis is crossing across.Crossing over includes the exchange of genetic material between homologous chromosomes and takes place during prophase I of meiosis.Tetrad formation is necessary for this, which does not take place during mitosis. New allele combinations are created in the progeny by recombination during meiosis.Starting at the "four-strand" stage, one homologous pair of chromosomes is shown.In a chromatid, each line represents a duplex DNA moleculeTo learn more about meiosis refer
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What is net productivity?
Answer:
it's the rate at which energy is stored as biomass by plants or other primary producers and made available to the consumers in the ecosystem.
plllssss help asap
A neutron strikes a plutonium-239 nucleus, starting a fission reaction. The products are a
strontium-96 nucleus, a barium-140 nucleus, and some neutrons. How many neutrons are in
the products of the reaction? (1 point)
O one
O four
O three
O two
Two neutrons are in the products of the reaction when a neutron strikes a plutonium-239 nucleus, starting a fission reaction.
What is fission reaction and how many neutrons are in the products of the reaction?Nuclear fission is the splitting of the nucleus into two or more smaller nuclei.Nuclear fission are the reactions in which the radioactive elements like uranium and thorium are used to generate power.When a neutron bombards into a larger atom, leading to excitement and splitting into smaller atoms.Hence when a neutron strikes a plutonium-239 nucleus, starting a fission reaction , the products are a strontium-96 and a barium-140.The number of neutrons released and are in the product of the reaction are two .To know more about fission reaction visit:
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in receptor-mediated endocytosis, the ligand-binding domain of the receptor molecules initially project to the outside of the cell. where do the ligand-binding domains end up after endocytosis?
The ligand-binding domains end up facing the inside surface of the vesicle after the endocytosis.
Bringing in macromolecules from the extracellular fluid is done through receptor-mediated endocytosis. This route allows for the internalization of over 20 distinct receptors. Others stay on the surface until a ligand is bound, while certain receptors are continually internalized.
What are ligand-binding domains?
A hydrophobic-binding pocket in the ligand-binding domain (LBD) draws the hormone there. The ligand is trapped inside the hydrophobic environment as a result of the binding of the ligand, which changes the conformation of the LBD.
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what is the expected frequency of heterozygotes if the population is in hardy-weinberg equilibrium? researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. they identify the gene responsible for toxin production. one allele (t1) codes for an enzyme that makes the toxin, and another allele (t2) codes for a nonfunctional enzyme that cannot produce the toxin. heterozygotes produce an intermediate amount of toxin. the allele frequency of t1 is determined to be 0.6 and the allele frequency of t2 is 0.4. what is the expected frequency of heterozygotes if the population is in hardy-weinberg equilibrium? 0.5 0.48 0.65 0.25
If a population has two alleles at a locus and the allele frequencies are p and q, then the genotype frequencies are p2, 2pq, and q2.
0.48 is the expected frequency of heterozygotes if the population is in hardy-weinberg equilibrium.
What are the expected frequencies for Hardy-Weinberg equilibrium?If a population has two alleles at a locus and the allele frequencies are p and q, then the genotype frequencies are p2, 2pq, and q2. Once a population is in Hardy-Weinberg equilibrium, the frequency distribution does not change from generation to generation.In populations that are not evolving, Hardy-Weinberg Equilibrium (HWE) is used to estimate the number of homozygous and heterozygosity terozygous variant carriers based on allele frequency. Expected (Hexp = 2pq) for a 2-allele system as a function of allele frequency, p. It is worth noting that heterozygosity peaks at 0.5 when the allele frequencies are equal (p=q).
H exp = 2pq = 2 x .4 x .6 =0.48.
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When heart muscles cells are deprived of oxygen, the heart still pumps for some time. What must the heart cells be able to do?.
Answer:
derive sufficient energy from fermentation
When heart muscle cells are deprived of oxygen, they can still continue pumping for a short period due to their ability to generate energy through anaerobic metabolism.
The heart cellsHeart muscle cells have the capacity to produce energy through anaerobic metabolism, which allows them to continue pumping for a brief amount of time when oxygen is not present. A limited quantity of energy is produced via anaerobic metabolism, a process that takes place without oxygen and supports temporary cellular processes.
Heart muscle cells predominantly utilise oxygen during aerobic metabolism (when oxygen is present) to make ATP (adenosine triphosphate), the main source of energy for cells. Aerobic metabolism, however, cannot be maintained when the oxygen supply is insufficient, such as when a coronary artery suddenly blocks, resulting in a heart attack.
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The hypothalamus sends messages through both the nervous system and the endocrine system. please select the best answer from the choices provided t f
The statement the hypothalamus sends messages through both the nervous system and the endocrine system is true.
The hypothalamus can be described as the part of the brain that is actively involved in the maintenance of homeostasis i.e internal conditions of the body.
The hypothalamus is responsible for communicating with the endocrine and nervous systems through the pituitary gland.
The hypothalamus sends messages through the endocrine system releasing hormones. These hormones are sent to the anterior and posterior pituitary.
The hypothalamus sends messages through the nervous system through nerve impulses for the regulation of internal body conditions.
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What I want to know: Why is it phrased "23O2, 16O2," etc.
This involves chemical formulas.
Also, if someone could help with the other question I would appreciate it. I don't understand what it is asking of me. :)
The difference between the macromolecules consumed by Americans and the elemental composition of human body is that these macromolecules provides energy, support and help speed up reactions in them while the elemental composition of human body are used to build proteins, carbohydrates and nucleic acids to perform their respective functions.
How macromolecules provide support.Macromolecules helps to give structural support to the body system through the proteins in our diet by consumption. They do this by acting either as hormones or carriers to aid metabolic activities.
From the task above, we can see that about 78% of carbon in American bodies are from the consumption of corn. Whereas in France, the percentage of carbon which is found in their body system is not upto 78% but 15%.
It has also been proven practically that the food substances consumed by Americans contains majorly of carbohydrates. Lipids and proteins is in low amounts or quantities, roughly almost the same amount.
Macromolecules such as glucose combines with oxygen to produce water, carbon dioxide and ATP in the reaction below:
C6H12O₂ + 6O₂ + 36 ADP+ 36 Pi → 6CO₂ + 6H₂O + ATP
The pi above means the phosphate group and ADP means adenosine diphosphate.
So therefore, we can deduce that macromolecules are of great importance in the diet system of the Americans as it provides structural support to them.
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What is the best definition of fossil range?
answer: The period of time when an organism first and last appears in the sedimentary record.
The best definition of fossil range: It is the period of time when the appearance of an organism is observed first as well as last in the sedimentary record.
The question is incomplete. The complete question is:-
What is the best definition of fossil range?
Hints:-
The diversity of organisms that can be observed in proximity in a rock unit.
Total number of contemporary organisms in the geological record.
The time when an organism goes extinct.
Period during which organisms first and last appear in the sedimentary record.
The geographic area over which an organisms thrives.
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photosynthesis and cellular respiration both use electron transport chains. what is the source of electrons for photosynthesis and where do the electrons go at the end of aerobic cellular respiration?
Water serves as an electron source in the electron transport process of photosynthesis. The electron is extracted from water by using solar energy.
What is the electron transport chain's source of energy?
The electron transport chain uses the energy released by oxygen and reduced compound reactions such as cytochrome c and (indirectly) NADH and FADH2 to pump protons into the intermembranous space, producing the electrochemical gradient over the inner mitochondrial membrane.
In photosynthesis, water is split to produce electrons in the presence of sunlight, a process known as the photolysis of water. The electrons are finally transferred to NADP+ by the chloroplast electron transport chain, where they are reduced to NADPH.
Therefore, In aerobic respiration, electrons from NADH and FADH2 are transferred to oxygen by the mitochondrial electron transport chain to reduce oxygen in the water.
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Cilia and flagella move...
A) In opposite directions of the cell membrane
B) When the bending of microtubules is powered by ATP
C) In the same direction of the cell membrane
D) When the contractions of the basal body triplets are powered by ATP
E)When the central pair of microtubules produce ATP
Answer:
A in opposite direction of the membrane
zone with the largest biodiversity in oceon
Photosynthesis and cellularrespiration
Answer:
Both are processes within the cell which make chemical energy available for life. Photosynthesis transforms light energy into chemical energy stored in glucose, and cellular respiration releases the energy from glucose to build ATP, which does the work of life.
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
hope this help
The complimentary base pairs for ACT are
Chargaff's rule, also known as the complementary base pairing rule, states that DNA base pairs are always adenine with thymine (A-T) and cytosine with guanine (C-G). A purine always pairs with a pyrimidine and vice versa. However, A doesn't pair with C, despite that being a purine and a pyrimidine.
Explanation:Complementary base pairs refer to the nitrogenous bases adenine, thymine, cytosine, and guanine. in a double strand of DNA, adenine will always pair with its complement thymine and cytosine will always pair with its complement guanine. This means that the two strands are complementary to each other. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT.
Answer:
cytosine with guanine
Explanation:
Describe the digestion of protein in the alimentary canal
Answer: Starts with chewing in the mouth.
Explanation: Begins in the mouth by chewing. There are two enzymes in saliva called AMYLASE and LIPASE. These enzymes helps in breaking down of carbohydrates and fats. Then the HCl and enzymes called Proteases break it into smaller chains of amino acids and are then utiliesd by our body for metabolic requirements.
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called.
In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called mitochondria.
The mitochondria are the organelles that are referred to as the powerhouse of the cell because the process of energy formation of the cell takes place in this organelle.
Energy is derived by a cell for its functioning through the process of cellular respiration that occurs in the mitochondria. In this process, glucose and oxygen react in order to release energy in the form of ATP.
The process of glycolysis is the stage of cellular respiration that occurs in the cytosol and it does not require oxygen. The oxygen-requiring process i.e the citric acid cycle and the electron transport chain occur in the mitochondria of a cell.
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Da. To which kingdom do moulds belong?
b. Name the two main parts of bread mould and identify their key role. Use a sketch
Bread Moulds or Rhizopus belong to The Fungi Kingdom.
The two main parts of bread mould are:
1. Rhizoids-
Rhizoids are branching structures that serve as anchors for the fungus in the substrate, allowing it to release digestive enzymes and absorb nutrients. When the environment is favorable, the sporangia, which contain a large number of haploid spores created by mitosis, release the spores into the surrounding air.
2. Sporangia-
Rhizopus produces sporangia at the ends of sporangiophores in order to reproduce asexually. Numerous sporangia open to discharge them. When two hyphae of different mating kinds ('+' and '-') come into contact on occasion, the right conditions will cause them to encourage each other to grow together to affect sexual reproduction.
What are the defining features of Kingdom Fungi?
Eukaryotic, non-vascular, immobile, heterotrophic creatures are fungi.They could be filamentous or unicellular.They spread spores to reproduce.The phenomena of generational alternation are seen in fungi.Since fungi lack chlorophyll, they are unable to carry out photosynthesis.Therefore, Moulds belong to the fungi kingdom.
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Of the four possible explanations for the origin of platyrrhines, which one is the most accepted currently?.
The earliest appearance of platyrrhines occur in fossil records comes from the late Oligocene in South America country is the currently most accepted of the four possible explanations for the origin of platyrrhines.
The Platyrrhine Fossil Record contains fossils of new world monkeys, which are few in comparison to the richness of Neotropical wildlife today and the generally strong fossil record for other South American animals. The late Oligocene in South America is when platyrrhines first emerge in the fossil record. 5-10 mya after the Fayum primate.
The earliest primates identified so far date from the Oligocene, although rodent remains from the late Eocene were recently uncovered in Chile, raising the possibility that there may be older monkey fossils in South America as well. These Patagonian fossils, like the early stem platyrrhines from Bolivia, are broadly connected to New World monkeys, though affinities to contemporary subfamilies are difficult to ascertain.
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