Answer:
- Controls the entry of chyme into the duodenum: A. Pylorus
- Controls the entry of chyme into the colon: H. Ileocecal valve
- Substance that helps make or break a chemical bond: I. Enzyme
- A component of gastric juice: G. Hydrochloric acid
- Organ that releases bile into the small intestine: E. Gallbladder
- Organ that synthesizes bile: J. Liver
- Fingerlike projection of small intestinal lining: D. Villus
- Absorption mechanism that requires energy: B. Active transport
- Absorption mechanism that does not require energy: C. Diffusion
- Carries fat-soluble vitamins: F. Lymphatic system
Explanation:
The pylorus is a part of the digestive system that connects the stomach to the duodenum. The ileocecal valve is a muscle localized between the ileum of the small intestine and the colon, whose main function is to limit the reflux of colonic contents. Gastric juice is a liquid consisting of hydrochloric acid, lipase, and pepsin, whose main function is to inactivate microorganisms. The gallbladder is a small organ that in combination with the small intestine are reservoirs for bile acid and regulate the biliary secretion of this acid. The bile acid is a fluid secreted by the liver that helps to digest lipids in the small intestine. Intestinal villi (villus in singular) are finger-like projections that increase the surface area for the absorption of nutrients in the small intestine. Active transport is the movement of molecules across cell membranes by using energy from ATP hydrolysis or by using an electrochemical gradient. Diffusion is the movement of molecules across cell membranes from a side of the membrane with higher concentration to the other side with lower concentration. An enzyme is a molecule (generally a protein) that is capable of accelerating the rate of a chemical reaction. Fat-soluble vitamins are absorbed in the small intestine and then they are transported through the lymphatic system to be released into the bloodstream.
When solar energy is more spread out, the sun is at an angle, What happens to the light energy??
Answer:
Explanation:
As the sun angle decreases, light is spread over a larger area and decreases in intensity (energy input per unit area). Figure 4.10 illustrates the effect of changing sun angle on the area illuminated and intensity of heating at different sun angles. hope i helped :)
All of the following can interfere with the breakdown of organic waste material in the soil except:
A
minerals
N
B
solvents
С
plastics
D
pesticides
Answer: A. Minerals
Explanation:
(i’m sorry this is so late)
All of the following can interfere with the breakdown of organic waste material in the soil except minerals. Thus, option A is correct.
What are minerals?There has been different kinds of the minerals. A mineral has been simply defined as any pure substance that has known to have the unique composition as well as structure. A rock has been simply known to be the combination or the mix up of the lot of different minerals and may sometimes include only one type of mineral.
It has been formed as the residual result from the parent material that had been undergone prolonged weathering the process. This part of the soil would be determine which has type of the plants has been capable in the absorbing the nutrient in that area and which plants that don't.
Therefore, All of the following can interfere with the breakdown of organic waste material in the soil except minerals. Thus, option A is correct.
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please can you explain me
in wedding night what they do work at 11 clock
A simple diagram of a DNA molecule is shown below. Which of the following is represented by X?
(photo above)
Answer:
From the diagram X = base pairs
Explanation:
Genetic information stored within DNA is used for growth, reproduction, and cell repair. DNA, deoxyribonucleic acids, are long-chain, helical macromolecules made of specific sequences of covalently bonded monomers called nucleotides.
Nucleotides comprise:
a 5-Carbon deoxyribose sugar, one nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.Nitrogenous bases cause nucleotides to form hydrogen bonds with other nucleotides as base-pairs. The four types of bases each make the nucleotides Thymine and Cytosine (pyrimidine bases) along with Guanine, and Adenine, (purine bases). In base-pair formation, Adenine forms double bonds with Thymine, and cytosine forms triple bonds with guanine.
A mother with a blood type of A has a son with
a blood type of B. Which of the following are
possible? Select all that apply.
Answer:
b blood
Explanation:
Do you know the size of the cell?
Answer:
At 0.1 to 5.0 μm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10 to 100 μm
Explanation:
Answer:
0.1 to 5.0 μm = prokaryotic cells
10 to 100 μm = eukaryotic cells
Hope this helps! :)
what are the four main types of marcromolescules found in organisms
Answer: carbohydrates, lipids, proteins, and nucleic acids
Explanation:
Is the fossil record complete for humans? Explain your answer.
True/False- A magnet can be strong enough to erase computer evidence.
Group of answer choices
True
False
Answer:
it could erase a tape but not easily disrupt any hard drive, emphasized "easily" as you would need a very powerful magnet to *destroy it* not erase it.
THANKS TO JESSE PINKMAN
A scientist extracts a molecule from a cell that includes phosphorus, a nitrogen base and a sugar. What macromolecule did the scientist most likely extract to
study?
A. Carbohydrate
B. Protein
C. Triglyceride
D. Nucleic Acid
Answer:
D
Explanation:
The correct answer would be Nucleic Acid.
A typical nucleic acid has 3 components which include:
A purine or pyrimidine nitrogenous baseA phosphate groupA 5-carbon sugarThe purine base includes adenine and guanine while the pyrimidine base includes thymine/uracil and cytosine. The 5-carbon sugar could be ribose or deoxyribose depending on if the nucleic acid is ribonucleic or deoxyribonucleic acid.
The only macromolecule that contains the 3 components of the options A to D is the nucleic acid. Hence, the correct option is D.
Scientific evidence shows that modern dogs, wolves, and foxes all have a common ancestor. Further evidence shows that dogs are more closely related to wolves than to fixes. Which of the following observations provides the BEST evidence that dogs are more closely related to wolves than to foxes? *
A. The diets of dogs and wolves are more similar that the diets of dogs and foxes.
B. The lifespans of dogs and wolves are more similar than the lifespans of dogs and foxes.
C. The genetic sequences (DNA) of dogs and wolves are more similar than the genetic sequences of dogs and foxes.
D. The body sizes of dogs and wolves are more similar than the body sizes of dogs and foxes.
The observation that provides the best evidence that dogs are more related to wolves than to foxes is the DNA sequence of dogs and wolves being more similar than that of dogs and foxes.
The DNA is a molecule that stores the genetic information of organisms. Thus, closely related organisms have similar information on their DNA, usually indicated by similar nucleotide sequences.
Therefore, if dogs and wolves are more closely related in ancestry than dogs and foxes, the DNA sequence of dogs and wolves will be more similar than the DNA sequence of dogs and foxes.
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When plants are closer to sunlight photosynthesis occurs
Answer:
Yeahh
Explanation:
When plants is around the place where the sunlight falls then plants can make their food
Candice is examining a cell under a microscope. She has identified a cell wall, a nucleus, and chloroplast. What type of organism does this cell most likely belong to.
1.plant
2.fungus
3.animal
4.bacterium
Answer:
1. Plant
Explanation:
Only a plant has a cell wall, chloroplast, and nucleus. Since eukaryotes are the only ones with a nucleus, that cancels out bacteria and fungi. Since there is a chloroplast, you can tell that the cell has to be one of an autotroph which gives you plant.
A scientist wants to know why the honeybee population is declining. Which step would the scientist MOST LIKELY do first?
A. Conduct an experiment to see if increased pollution is causing a decrease in the honeybee population.
B. Communicate the question to as many other scientists as possible so that they can discuss it.
C. Observe the problem and make a hypothesis about what is causing it.
D. Research to see if there is already a widely accepted explanation.
Research to see if there is already a widely accepted explanation.
Explanation:
Because if the scientist's problem is already solved and accepted he doesn't have to waste his time .
What’s 5 ways water is important for individual organisms?
Answer:
Five reasons water is so important to your health
Water boots energy. Water delivers important nutrients to all of our cells, especially muscle cells, postponing muscle fatigue.
Water helps weight loss. Water helps you feel full longer, without adding any additional calories.
Water aids in digestion.
Water detoxifies.
Water hydrates skin.
Explanation:
What does it mean if an organism is multicellular?
How can forces be used to predict the movement of objects?
Think in terms of objects experiencing forces in opposite directions.
Answer:
Explanation:
The motion of an object is determined by the sun of the forces acting on it. If the total force on the object is not at zero then it’s motion will change.
The diagram below shows a sarcomere. If a disorder limits the number of
calcium ions that can bind to actin, what would happen to the sarcomere?
Myosin
Actin
phases
A. The myosin and actin would not separate, and the sarcomere
would remain contracted.
B. The myosin and actin would not separate, and the sarcomere
would be unable to contract.
C. The myosin and actin could not connect, and the sarcomere would
be unable to contract.
O D. The myosin and actin would not connect, and the sarcomere
would remain contracted.
No
Answer:
i would say C. but it is probably wrong. i don't really understand this stuff
The myosin and actin could not connect, and the sarcomere would
be unable to contract.
What is a sarcomere muscle?Sarcomeres are rather stereotyped and are repeated in the course of muscle cells, and the proteins inside them can trade-in periods, which reasons the overall length of a muscle to trade. A character sarcomere consists of many parallel actins (thin) and myosin (thick) filaments.
What is the difference between sarcomere and myofibrils?Myofibrils are composed of repeating sections of sarcomeres, which appear under the microscope as alternating dark and light bands. Sarcomeres are composed of long, fibrous proteins as filaments that slide beyond each other when a muscle contract or relaxes.
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What do bacteria have in common with the cells of other living organisms?
Answer:
Summary. Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella.
A ball bounces on the ground. How do the ball and the ground act on each other?
Explanation:
It will continue to fall under the influence of gravitational acceleration, but now, a normal force from the ground surface, opposing the force due to gravity, will act on the ball.This all means that the ball is pushing on the ground with a force greater than its own weight, so acceleration must point upward.
A 60kg person climbs stairs of total height of 20m in two minutes.calculate the power delivered.g:10ms
Which equation best represents conservation of matter?
A 6H2O + 6CO2 → C6H12O6 + 6O2
B 6H2O + 6CO2 → C3H6O3 + 3O2
C 3H2O + 3CO2 → C6H12O6 + 6O2
D 6H2O + 10CO2 → C6H12O6 + 4O2
Answer:
A 6H2O + 6CO2 → C6H12O6 + 6O2
Explanation:
The law of conservation of matter states that matter can neither be created nor destroyed in a system. In other words, when elemental matter undergoes a reaction, the amount of elements used must be equal the amount produced.
The equations in this question depicts the overall photosynthetic process where CO2 combines with H2O to produce C6H12O6 and O2. In order for this equation to obey the "conservation of matter", each individual element must be equal on both the reactant and the product side i.e. the equation must be balanced.
The equation that fulfills this is:
6H2O + 6CO2 → C6H12O6 + 6O2
Hence, it correctly describes the conservation of matter.
Answer:
A 6H2O + 6CO2 → C6H12O6 + 6O2
Explanation:
The law of conservation of matter states that matter can neither be created nor destroyed in a system. In other words, when elemental matter undergoes a reaction, the amount of elements used must be equal the amount produced.
The equations in this question depicts the overall photosynthetic process where CO2 combines with H2O to produce C6H12O6 and O2. In order for this equation to obey the "conservation of matter", each individual element must be equal on both the reactant and the product side i.e. the equation must be balanced.
The equation that fulfills this is:
6H2O + 6CO2 → C6H12O6 + 6O2
Hence, it correctly describes the conservation of matter.
Explanation:
How do Limiting factors affect biotic potential? Please hurry and help me
Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate. The carrying capacity of an environment is reached when the number of births equal the number of deaths. A limiting factor determines the carrying capacity for a species.
Seeds that are planted upside down are still able to grow into mature plants. Which explanation
best explains this phenomenon (a)The roots change into branches in the branches turn to roots(b) The roots grow towards the force of gravity and the stem goes away(c)The plant will become a smaller version of a mature plant(d) roots always grow toward the dark and the stem grows toward the light
The explanation that best explains this phenomenon is: the roots grow towards the force of gravity and the stem goes away
WHAT IS GEOTROPISM?The parts of a plant can be divided into shoot and roots. The root of the plant is the part that grows below the ground surface in order to anchor the plant.
When a seed germinates, the root part of that seed grows towards gravity i.e exhibits geotropism while the shoot part grows away from gravity i.e. upwards.
Hence, if a seed is planted upside down, it will still grow into an erect mature plant because the root will grow downwards towards gravity (positive geotropism) while the stem grows upward away from gravity (negative geotropism).
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An air mass takes on temperature and moisture characteristics of the land
or water beneath it. What kind of air mass forms over tropical waters that
have been heated by the sun?
A) cool and moist
B) hot and very dry
C) warm and moist
D) cold and dry
I need this today please help
Answer:
I'm pretty sure its c
Explanation:
Warm and moist kind of air mass forms over tropical waters that have been heated by the sun. Hence option C is correct.
What are topical waters?Topical waters are defined as water between the Tropic of Cancer (23.5° North latitude) and the Tropic of Capricorn (23.5° South latitude). In the Köppen climatic classification, a tropical climate is one in which the average monthly temperature is over 18°C. There is no winter season and there is more annual rainfall than annual evaporation.
A good illustration of this kind of fish is the goldfish. On the other hand, "tropical" or "warm water" fish require a water temperature that is optimal for their comfort and health. Although different species of fish have varying needs, tropical fish generally demand water that is between 76 and 80 degrees Fahrenheit (25 and 27 degrees Celsius).
Thus, warm and moist kind of air mass forms over tropical waters that have been heated by the sun. Hence option C is correct.
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Root systems are classified as fibrous root systems and taproot systems.
Which property distinguishes the two types of root systems from each other?
A)
the method of water absorption
B)
the branching pattern of the roots
C)
the presence of xylem and phloem
D)
the growth rate of the roots
Answer:
B) the branching pattern of the roots
Explanation:
Plant roots function as anchors, food storage and aid in the uptake of water and minerals- other modifications include gas exchange and chemical signaling.
Root systems are mainly classified as taproots, usually found in dicots or fibrous roots found in monocots - some plants are a varying combination of the two systems. While tap roots consist of a larger, vertical main root surrounded by smaller lateral roots, fibrous roots are typically a dense network of roots that grow near the surface of the soil.
Taproots are thought to be more common in plants inhabiting regions experiencing water scarcity, while fibrous roots are thought to grow in more lush, water-abundant regions.
Examples of these roots systems include...
taproots: dandelions, carrots, turnipsfibrous roots: grasses, cornanswer.
1
A DNA nucleotide consists of three smaller units.
Which type of biomolecule represents one of these
smaller units?
A Carbohydrate
B Lipid
C Protein
D Nucleic acid
Answer: Carbohydrate
Explanation: You may be familiar with the sugar-phosphate backbone, which just serves as structural framework for the DNA strand. Phosphate sugars are carbohydrates that link to phosphates and nitrogenous bases to create a helix.
Measuring Populations (brainliest)
Answer:
I believe your answer would be C: interactions between individuals
Explanation:
Brainliest if this is correct?
Answer:
Letter C, interactions between individuals
Explanation:
Also, I love your profile pic!!
Match the following.
1. also known as archaebacteria; prokaryotic organisms with different structures than bacteria; believed to be the most primitive organisms, capable of inhabiting extreme environments
2. the two-name system of naming living things used in classification
3. prokaryotic organisms including bacteria and cyanobacteria
4. a cell that has a membrane-bound nucleus and/or organelles as its major characteristic
5. the form or appearance of an organism; the collection of physical characteristics and the structure which make up an organism; a basis for species definition
6. a cell whose nucleus is not bound by a membrane
7. the separation of populations of organisms by some type of barrier to produce variations of species; no reproduction or exchange of genes occurs between the separated groups; a basis for species definition
Answer:
1. Archaea
2. Binomial nomenclature
3. Eubacteria
4. Eukaryote
5. Morphology
6. Prokaryote
7. Reproductive isolation
Explanation:
Archaea are microorganisms without a cell nucleus (i.e., prokaryotes), which were originally classified as Archaebacteria. Nowadays, procaryotic organisms are classified into two domains: Archea (Archaebacteria) and Bacteria (Eubacteria). These organisms are characterized by the lack of membrane-bound organelles. On the other hand, the domain Eukaryota consists of organisms that have their nuclei enclosed by a membrane. This domain is divided into four kingdoms: Protista, Plantae, Fungi and Animalia. Binomial nomenclature is a classification system to name species, where the first word of the name indicates the genus of the species and the second part of the name indicates the species within the genus. Finally, reproductive isolation is a term used to indicate physiological, mechanical, behavioral and geographical barriers that prevent interbreeding between two different species.
Please give me an answer and don’t confuse me because everybody is giving me different answers :(
Answer:
In plants and some protists, such as algae
Explanation:
Chloroplasts are organelles found in cells of plants and some protists, such as algae. They contain a pigment called chlorophyll, which makes them green. Thanks to this protein, they conduct photosynthesis - a process in which energy from sunlight is converted into sugars, i.e. food. In this process, oxygen is being released.