Answer:
D. Enzymes only break down large molecules.
Explanation:
Enzymes are the substances which helps in the broken down of large food molecules into small molecules. It is because our body is not able to absorb large food molecules, these large molecules are broken down into small molecules with the help of enzymes. Carbohydrate is broken down into glucose by amylase and protein is broken down into amino acids by protease. Enzyme is non-living in nature and used as a catalyst in order to speed up the chemical reaction.
Info:
Well, I do not know where you got that information from, but, it is true. Physics is a branch of science that studies something that is quite far from biology. Chemistry though, shares a lot of common studies though, and many times they depend on each other.
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Comparison:
Physics: studies the behaviour of the universe, to keep it simple.
Chemistry: it's the study of matter and their properties/interactions.
Biology: studies life.
As you can see, the studies of physics cannot be used frequently while studying biology. But, the study of matter can really be helpful to the study of life because they're really related.
Hope it helped,
BioTeacher101
Animals have different structures (like gills, lungs) to perform similar functions as a mechanism of an evolutionary continuum with adaptations depending on various limitations like phylogeny, structure and behavior of animals, and other environmental factors.
Explanation:
Respiration in any organism takes place through the exchange of gases. Respiration differs in different animals and it takes place through;
- Cell membranes in unicellular organisms
- Moist skin surface in amphibians
- Gills by fishes, annelids and arthropods
- Lungs by birds, reptiles, and mammals
Gills are specialized structures in fishes which absorb the oxygen dissolved in water and lets out carbon dioxide into the water. Later gaseous exchange takes place through blood vessels in the gills.
Animals use lungs for respiration by inhaling oxygen and exhaling carbon dioxide. The gaseous exchange occurs in the alveolar sacs of the lungs.
Answer:
E
Explanation:
In DNA molecule, the number of guanine bases will always be equal to the number of cytosine bases. Genuine make a triple hydrogen bond with cytosine. That's why the number of guanine bases is equal to cytosine bases.
