The vestibular system is primarily responsible for process body position and movement; problems would make it difficult to maintain balance.
3) process body position and movement; problems would make it difficult to maintain balance.
What is vestibular system?The vestibular system detects the position and movement of the head in space by integrating information from peripheral receptors located in the inner ear. Sensory cells in the posterior labyrinth transform mechanical energy resulting from ciliary movements into a biological signal.
In humans, this system is composed of three semicircular canals that merge in a central region called the vestibule, which has two other vesicular structures: the saccule and utricle, also known as otolith organs.
The utricle presents larger dimensions when compared to the saccule, located in the superior region of the vestibule. There is a tiny area of lining of the saccule and utricle that differentiates into a sensory organ, known as the macula.
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Make a claim- Does meiosis increase or decrease genetic variations?
Answer:
it increases
Explanation:
24. assume independent assortment and start with a plant that is dihybrid a/a;b/b: a. what phenotypic ratio is produced from selfing it? b. what genotypic ratio is produced from selfing it? c. what phenotypic ratio is produced from testcross- ing it? d. what genotypic ratio is produced from testcrossing it?
A. The phenotypic ratio is produced by selfing it:
9: A/_; B/_3: A/_; bb3: aa; B_1: aa; bbB. The genotypic ratio from selfing it:
1: Aa; Bb1: Aa; bb1: aa; Bb1: aa; bbC. The phenotypic ratio for a test cross is 1:1:1:1.
D. Test matings with heterozygous individuals should consistently yield a dominant-to-recessive phenotype ratio of approximately 1:1. Here the ratio of both genotype and phenotype is 50:50.
To estimate the genotype-phenotype relationship, calculate the number of Punnett squares for each allele aggregate. Therefore, in this example, we use one Punnett square box for RR and RR and two Punnett square boxes for Rr.
Calculating the Punnett rectangular ratio as 1:2:1 offers the genotypic ratio, giving the genotypic ratio. One obvious way to find out your genotype is to do a genetic test. Companies like 23andMe can do this fairly cheaply these days. But for this to work, scientists must understand the genetic differences that lead to traits.
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The element carbon has three natural isotopes: C-12, C-13, and C-14.
Use the periodic table to find the number of protons in a carbon atom.
Then make a drawing to show the nuclei of the three carbon isotopes.
Your drawing should convey the number of protons and neutrons in each of the three different nuclei.
Answer: See Below
Explanation:
1. There are 6 protons in a carbon atom (The # of protons is the same as the atomic number).
2. Attached below. Red circles are protons blue are neutrons.
Understand that the number following the C (12,13,14)
refers to the total number of protons and neutrons in the atom. Proton number does not change only neutrons can.
what characterizes all ecdysozoans? ecdysozoans reproduce clonally (asexually). ecdysozoans grow by molting. ecdysozoans are sessile (don't move) in the adult stage. ecdysozoans practice suspension feeding.
All ecdysozoans grow by molting. This characteristic applies to all ecdysozoans.
The epidermis then secretes a new exoskeleton, which is soft until the remnants of the old cuticle that was laying on top are shed during ecdysis. The fresh cuticle then grows and becomes harder. Only because ecdysozoans are adept at molting does this procedure in nature appear to be straightforward.
What are some features of ecdysozoans?
Ecdysozoans are most known for their cuticle, a thick yet flexible exoskeleton that shields these creatures from predators, water loss, and other elements of their environment. As they develop, every member of this superphylum molts or sheds its cuticle on occasion.
Therefore, All ecdysozoans grow by molting.
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Which is a product of photosynthesis?(1 point)
Responses
sugar
sugar
water
water
carbon dioxide
carbon dioxide
sunlight
sunlight
Answer:
sugar is the answer
Explanation:
sugar and oxygen are both products of photosynthesis
Answer:sugar
Explanation:
Which sentence is the best example of a living thing responding to its environment?
Answer: B
Explanation:
I just did the test and it’s B
normally, crossing over occurs between homologous regions of homologous chromosomes. sometimes mistakes happen, and crossing over occurs between non homologous regions of homologous chromosomes, resulting in duplications and deletions. what characteristic of a chromosome would make non homologous recombination more likely?
The characteristic of a chromosome would make non homologous recombination more likely to be nonhomologous regions of homologous chromosomes.
Biology uses the term "single nucleotide polymorphism" (SNP) to describe a single base pair variation that is prevalent in the population. A mutation is defined as any change in the DNA sequence. In more detail, a polymorphism is any genomic region where at least two distinct sequences are discovered, with each sequence present in at least 1% of the population. The word "polymorphism" is frequently used to describe a normal variation or one that doesn't directly cause sickness. Additionally, the threshold of at least 1% prevalence for a variation to be categorized as a polymorphism is somewhat arbitrary; if the frequency is lower than this, the allele is often recognized as a mutation.
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Phospholipids are found in a limited number of foods. They consists of a glycerol backbone with two fatty acids and a compound that contains phosphate. Why are they important in food and in the body?.
A glycerol backbone, two fatty acids, and one phosphate group make up phospholipids. This suggests that this molecule may be a phospholipid. Triglycerides are lipids that have three fatty acids attached to a glycerol molecule.
Why phospholipids are important?A phospholipid is a molecule made composed of a glycerol backbone, two fatty acids, and a modified phosphate group. The phosphate can change by having polar or charged chemical groups added to it.
A glycerol backbone, two fatty acids, and one phosphate group make up phospholipids. This suggests that this molecule may be a phospholipid. Triglycerides are lipids that have three fatty acids attached to a glycerol molecule.
Triglycerides and phospholipids are made of the three-carbon molecule glycerol. Three fatty acids, one to each of the glycerol's carbons, are present in triglycerides. Two glycerol carbons are used by phospholipids to bind fatty acids, and a third is used to bind a phosphate group.
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Triglycerides are the most common lipid found in food and in the body; they consist of a ____________ backbone attached to three fatty acids.
Triglycerides are the most common lipid found in food and in the body; they consist of a glycerol backbone attached to three fatty acids.
In the field of science, triglycerides can be described as a type of lipids that help in generating energy for the body.
As the name suggests, the structure of triglycerides is in the form of a triester. This triester comprises of three fatty acid molecules and a backbone that is made from glycerol.
Although triglycerides are used to derive energy however higher levels of triglycerides can be toxic to your body.
Triglycerides car most commonly found in food as well as in the body of an individual.
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suppose a young boy is always tired and fatigued, suffering from a metabolic disease. which of the following organelles is most likely involved in this disease? mitochondria golgi apparatus ribosomes lysosomes
Option (A), the mitochondria, is the organelle that is most likely involved in this condition.
What are Mitochondria?Most eukaryotic species contain an organelle called a mitochondrion, which has two membranes.
The primary method through which mitochondria manufacture adenosine triphosphate, a chemical energy source for cells, is through aerobic respiration.
The mitochondria, which are membrane-secure cell organelles (mitochondrion, singular), create the most chemical energy to power the cellular metabolic reactions.
The mitochondria in cells are the mechanisms responsible for converting dietary energy into a form the cell can use.
Each cell contains countless hundreds of thousands of mitochondria.
The mitochondria, which are membrane-bound cell organelles, generate the majority of the chemical energy needed to power a cell's metabolic processes (mitochondrion, singular).
The small molecule adenosine triphosphate serves as a reservoir for the chemical energy produced by the mitochondria (ATP).
Therefore, option (A), the mitochondria, is the organelle that is most likely involved in this condition.
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how does cleavage differ from normal mitosis? a. the growth phases between divisions are faster. b. there are no growth phases between divisions. c. it occurs faster than normal mitosis. d. it occurs slower than normal mitosis.
Cleavage differs from mitosis by b. there are no growth phases between divisions.
In the field of biology, cleavage can be described as a division by which a zygote or a fertilized egg divides. On the other hand, the process of mitosis occurs in the mature cells of an individual through which the chromosomes divide. The process of cleavage allows the zygote to rapidly divide. The very first of the divisions of the zygite are termed to be cleavage where the process of mitosis keeps on occurring as long as an organism is alive.
The process of mitosis has growth phases such as the interphase. On the other hand, there are no growth phases in the cleavage.
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For which type of lesion would a bandage be most important in order to keep bacteria and other pathogens from entering the body?.
four of the options apply to fermentation but not to aerobic cellular respiration. find the option that applies to aerobic cellular respiration. group of answer choices does not require oxygen. does not require an electron transport chain. makes a lot of atp from one glucose. provides energy for a sprint. produces atp very fast.
The option makes a lot of atp from one glucose. provides energy for a sprint applies to aerobic respiration.
ATP is the energy currency of the cell. It is produced by metabolism of glucose by three methods namely aerobic, anaerobic and fermentation. Aerobic respiration requires oxygen while anaerobic respiration and fermentation do not require oxygen. Electron Transport Chain or ETC occurs only in aerobic respiration. It is the last step where electrons are transferred.
Anaerobic respiration and fermentation produce two ATP while aerobic respiration produces 36 ATP. All the three forms of respiration can give energy for sprinting, but aerobic respiration is preferred due to high amount of energy.
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researchers often want to isolate a certain type of rna. for some rna species, this can be accomplished via affinity chromatography, using beads coated with chains of poly-deoxythymidine (poly-dt). the desired rna will stick to the beads while unwanted rnas will flow through the column. the retained rna can then be eluted. what rna species can be purified using this method? researchers often want to isolate a certain type of rna. for some rna species, this can be accomplished via affinity chromatography, using beads coated with chains of poly-deoxythymidine (poly-dt). the desired rna will stick to the beads while unwanted rnas will flow through the column. the retained rna can then be eluted. what rna species can be purified using this method? eukaryotic mrna eukaryotic rrna bacterial mrna bacterial rrna
According to the given statement Eukaryotic mRNA species can be purified using this method.
The correct option is C.
What is an eukaryotic ?Any cell or organism that has a distinct nucleus is said to have been eukaryote. The nucleus of a eukaryotic cell, which contains a well chromosomes (bodies holding the genetic material), is protected by a nuclear membrane.
What are eukaryotic cells made of?Eukaryotic cells can also have other organelles outside the nucleus, such as mitochondria, plastids, the endoplasmic, the Golgi apparatus, and lysosomes. Each of these organs carries out a distinct task that is essential to the survival of the cell.
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The complete question is -
Researchers often want to isolate a certain type of RNA. For some RNA species, this can be accomplished via affinity chromatography, using beads coated with chains of poly-deoxythymidine (poly-dT). The desired RNA will stick to the beads while unwanted RNAs will flow through the column. The retained RNA can then be eluted.
What RNA species can be purified using this method?
A. bacterial mRNA
B. bacterial rRNA
C. eukaryotic rRNA
D. eukaryotic mRNA
modern primates are characterized by arboreal adaptations. what is an example of this kind of adaptation in primates? group of answer choices short digits an expanded reliance on sense of smell a precision grip opposable thumbs
The example of arboreal adaptations which are characteristic to modern primates is: (4) opposable thumbs.
Arboreal adaptations are those that are present in animals that live on the trees. For example, many of the monkeys have great arm strength in order to swing on the trees. Camouflage is also an adaptation in some organisms, like chameleons. Such organisms also have greater balancing ability.
Opposable thumb is an adaptation where the thumb can be moved and rotated very easily and can also be placed behind the fingers of the same hand. This adaptation can be observed in animals like chimpanzees, orangutans, and other variants of apes; certain frogs, koalas, pandas, etc.
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How do i transform a table into a histogram
Answer:
Sep 21, 2020
7 key moments in this video
From 00:40
Decide on bin limits
From 01:56
Entering Bin Limits
From 02:21
Generate the frequency table
From 03:13
Review the frequency table
From 05:27
Add Axes titles
From 05:49
How to make the bars in the chart thick
Explanation:
If an oak tree has 6 chromosomes in its reproductive cells, then it means that it has 12 chromosomes in its ________cells.
If an oak tree has 6 chromosomes in its reproductive cells, then it means that it has 12 chromosomes in its somatic cells. This is like this because reproductive cells are generated by meiosis, which is a reductional cell division, producing four cells with half of the genetic material of the original cell and different from each other.
Which part of a cell is the fluid environment where molecules are broken down and new molecules made?
jeff was in a fatal accident in which he died almost instantly due to a nervous system injury that interfered with essential life functions such as heartbeat and respiration. which part of jeff's nervous system is most like to have been injured?
The injury that caused Jeff's immediate death and interfered with essential life functions like heartbeat and respiration occurred in the brainstem.
The brainstem is a vital region of the central nervous system located at the base of the brain. It acts as a bridge between the brain and the spinal cord and is responsible for regulating several essential functions necessary for life, including:
Autonomic functions: The brainstem controls autonomic functions that are essential for survival, such as heartbeat (cardiac function) and respiration (breathing).
Cardiovascular control: The brainstem contains centers that regulate blood pressure, heart rate, and the constriction/dilation of blood vessels.
Respiratory control: The brainstem is involved in controlling the rate and depth of breathing.
Reticular activating system (RAS): The brainstem contains the reticular activating system, which plays a critical role in maintaining consciousness and alertness.
A severe injury to the brainstem can disrupt these vital functions, leading to immediate and fatal consequences, such as the inability to maintain heartbeat and respiration, resulting in rapid death.
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small, nonpolar, hydrophobic molecules such as fatty acids easily pass through a membrane's lipid bilayer. very slowly diffuse through a membrane's lipid bilayer. require transport proteins to pass through a membrane's lipid bilayer. are actively transported across cell membranes.
Small, nonpolar, hydrophobic molecules such as fatty acids pass readily through a membrane's lipid bilayer.
The cell membrane, which is selectively permeable and controls the passage of molecules into and out of the cell, facilitates the movement of substances or molecules throughout the cell.
A thin polar membrane composed of two layers of lipid molecules is the lipid bilayer. These membranes are flat sheets that surround all cells and act as a continuous barrier.
A lipid-rich cell membrane will not repel small, nonpolar hydrophobic molecules like fatty acids, so they enter the cell through simple diffusion. This indicates that they easily and without assistance penetrate the lipid bilayer of a membrane. Because they are a class of lipids and soluble in the lipid layer of the cell membrane, fatty acids are able to pass through the lipid-bilayered membranes easily.
Small, nonpolar hydrophobic molecules such as fatty acids
a. pass readily through a
membrane's lipid bilayer
b. diffuse very slowly through the lipid bilayer
c requires special channels to enter a cell
d. are actively transported across cell membranes
c. must enter the cell via endocytosis
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What does it mean that water has a high heat capacity? Why is it important for life on Earth?
Explanation: The high specific heat of water means that it requires a large amount of heat to raise the temperature of water. This helps the temperature of the environment from becoming too hot or too cold. Also, humans are about 66% water, thus this property of water helps us regulate our body temperature too.
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Phospholipids are found in a limited number of foods. They consists of a glycerol backbone with two fatty acids and a compound that contains phosphate. Why are they important in food and in the body?.
Lipids serve three primary biological functions in the body: they serve as structural components of cell membranes, they store energy, and they serve as important signaling molecules. Triacylglycerols (also known as triglycerides), phospholipids, and sterols are the three main types of lipids.
What is a phospholipid made of?A phospholipid molecule has two hydrophobic fatty acid tails and one hydrophilic phosphate moiety joined together by an alcohol or glycerol molecule . phospholipid form lipid bilayers as a result of this structural arrangement and are an essential component of all cell membranes.Phospholipids are amphiphilic molecules with a glycerol backbone and two hydrophobic fatty acyl tails.Lipids serve three primary biological functions in the body: they serve as structural components of cell membranes, they store energy, and they serve as important signaling molecules. Triacylglycerols (also known as triglycerides), phospholipids, and sterols are the three main types of lipids.To learn more about : phospholipid
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Which level of organization is shown in the image?
• cell
• tissue
•organ
•organ system
if you allowed your dilution tubes to incubate for 24 hours before plating them, do you think the results of the experiment would be impacted? assume that unlimited resources are present in the tubes. explain your answer.
If you allowed your dilution tubes to incubate for 24 hours before plating them, the results of this experiment would be impacted.
What is incubation?Incubation is the maintenance of uniform temperature and humidity conditions to ensure the growth of microorganisms, especially bacteria.
If there is already an unlimited resource in the tube, the colony-forming units per milliliter will be affected or altered as this creates more favorable conditions for the formation of further colonies.
Even with dilution in performed in a hood and sterile medium, the microbial colony will increase as more microorganisms differentiate and increase in number over the 24 hour interval.
An incubator is a device used to grow and maintain microbial or cell cultures. The incubator maintains optimal temperature, humidity, and other conditions such as CO2 and oxygen levels in the atmosphere inside. Incubators are essential for many experimental tasks in cell biology, microbiology and molecular biology and are used to culture both bacterial and eukaryotic cells.
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At 20°c, a cell with ψp of 3 bars is in equilibrium with the surrounding 0. 4m solution of sucrose in an open beaker. What is the molar concentration of sucrose in the cell?.
At 20°c, a cell with ψp of 3 bars is in equilibrium with the surrounding 0. 4m solution of sucrose in an open beaker. The molar concentration of sucrose of the cell is 0.52 M.
Ψ S = -iCRT
R = 0.0831 liter bars/mole K.
i = 1 (for sucrose)
Psi S(surround.)= -(1) x (0.4)x (0.0831) x (273+20)
Ψ S(surround) =−9.74 PsiS(surround) = Psi P + Psi S -9.74 = 3 + Psi S
Ψ S =12.74
Ψ S =iCRT −12.74=−(1)×C×(0.0831)×(273+20) −12.74=−24.34C C = 0.52
The best approach to describe a solution's solute concentration is in terms of molar concentration. The definition of molarity, or M = mol/L, is the total number of moles of solute dissolved in one litre of solution. The mass or moles of solute and the volume of the solution can be converted using molar concentration. The ratio of the amount of solute to the amount of solution is known as concentration.
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At that time its sensible heat released over the time period it means that it releases heat from any degree Celsius up to zero degree Celsius.
It happens because heat is released from water to surrounding by the help freezer or refrigerator.
When latent heat is released than phase change will take place. It means that when water reaches at zero degree Celsius than latent heat will released than water become ice at zero degree Celsius.
The word associated with the phenomenon is phase change.
What is freezing process?Freezing has been the process in which the phase change or state change takes place and it means that a process in which a liquid change into solid.
Freezing process can be achieved by the extraction of heat i.e or removing latent heat, latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without change in temperature.
Therefore, At that time its sensible heat released over the time period it means that it releases heat from any degree Celsius up to zero degree Celsius.
It happens because heat is released from water to surrounding by the help freezer or refrigerator.
When latent heat is released than phase change will take place. It means that when water reaches at zero degree Celsius than latent heat will released than water become ice at zero degree Celsius.
The word associated with the phenomenon is phase change.
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if the experimental population of e. coli lacks an f factor or f plasmid, and if bacteriophages are excluded from the bacterial cultures, how would beneficial mutations be transmitted horizontally to other e. coli cells?
Beneficial mutations be transmitted horizontally to other e. coli cells by means of transformation.
What is transformation?Bacterial transformation is the transfer of free DNA released from a donor bacterium into the extracellular environment, usually leading to the assimilation and expression of newly acquired traits in the recipient bacterium.
Transformation of bacteria relies on the natural ability of the bacterium to release DNA, which is taken up by another competent bacterium. Successful transformation depends on the competence of the host cell. Competence is the ability of cells to incorporate bare DNA into the transformation process. Intrinsically transformable organisms spontaneously release DNA by late stationary phase autolysis. Some bacteria, including Escherichia coli, have been artificially treated in the laboratory to use chemicals such as calcium, to apply strong electric fields (electroporation), or to apply heat shocks to induce phenotypes. Electroporation or heat shock enhances potency by increasing cell wall permeability and allowing donor DNA entry.To know more about transformation visit:
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Why are watersheds so important to water quality
bioremediation uses microbes that choose one: a. can modify environmental toxins through normal metabolism. b. can reproduce rapidly and overcome other microbial species. c. are parts of the microbiome. d. can assimilate nitrogen into nitrate.
Bioremediation uses microbes that a. can modify environmental toxins through normal metabolism.
Bioremediation broadly refers to any process wherein an organic system, living or useless, is hired for casting off environmental pollution from the air, water, soil, flue gasses, industrial effluents, and many others., in natural or artificial settings.
Bioremediation technique is degrading, getting rid of, changing, immobilizing, or detoxifying numerous chemical compounds and physical pollutants from the environment via the interest of bacteria, fungi, algae, and plants.
Bioremediation allows for smoothing up water sources, creating more healthy soil, and improving air great around the globe. but not like excavation-based totally remediation techniques, which may be disruptive, bioremediation is less intrusive and might facilitate remediation of environmental impacts without adverse sensitive ecosystems.
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are examples of naturally occurring biological hazards. a. ddt and dde b. viruses and salmonella c. crude oil seeps and radon gas d. carbon dioxide and nitrogen gas
(b) Viruses and Salmonella are examples of naturally occurring biological hazards.
Biological hazards refer to the environmental threats which are posed by biological agents such as disease or infection causing micro-organisms called pathogens e.g. Viruses and Salmonella are classified as naturally occurring biological hazards.
Viruses are infectious particles. The genetic material of viruses is enclosed within a protein coat i.e. capsid. Salmonella is a rod-shaped bacteria responsible for causing an infection known as salmonellosis in humans.
DDT and DDE, crude oil seeps and Radon gas as well as Carbon dioxide and Nitrogen gas are all examples of chemical hazards that adversely affect human health.
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