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Flura [38]
2 years ago
11

Abril.meedina comenta

Biology
2 answers:
Anna [14]2 years ago
8 0

Answer:

HI I THINK RED IS THE IMPOSTER

Explanation:

Scorpion4ik [409]2 years ago
3 0

Answer:

um im answering this cuz i need points

Explanation:

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Why do fish have gills​
Marta_Voda [28]

Answer: Like us, fish also need to take in oxygen and expel carbon dioxide in order to survive. But instead of lungs, they use gills. ... As the fish opens its mouth, water runs over the gills, and blood in the capillaries picks up oxygen that's dissolved in the water.

4 0
2 years ago
44. Which of the following choices is NOT a major component of vascular plant leaf anatomy?
Aliun [14]

Answer:

The correct answer is option d. "Elastic channels".

Explanation:

The vascular plants uses xylem and phloem cells that carry water and nutrients to all the parts of the plant, which are present in the leaves of the plant. Stomata is part of the vascular system of a plant, but it serves for gas exchange instead of water and nutrients exchange. Palisade mesophyll is a structural component that contains columnar cells with spaces between them, located in the leaves of vascular plants as well. A component that is not part of the vascular plant leaf anatomy are the elastic channels.

5 0
3 years ago
During Mendel's experiments, _____ alleles resulted in visible phenotypes when at least one copy was present.
Inessa [10]

Answer:

The word for the blank spot is Recessive.

Explanation:

3 0
2 years ago
In the 1980s, British researchers demonstrated that a human gene could be inserted
GuDViN [60]
O The yeast cell mutated the gene to it compatible.
3 0
3 years ago
What type of molecule speeds up chemical reactions in living things?
iren [92.7K]

The best answer is  B - Proteins.

Proteins make up enzymes, or to put it another way enzymes are made up of protein. It is enzymes that speed up the chemical reactions. Enzymes are organic catalysts, substances that speed up a (biochemical) reaction but do not take part in the reaction and remain unchanged at the end of the reaction.

In man, there are many enzymes. The majority of these are found in the digestive system where they greatly aid the process of food breakdown from complex molecules to simple molecules. Examples include salivary amylase found in saliva,  which begins the gradual breaking down of starch into glucose right from the moment food is placed in the mouth and mixed with saliva. Pepsin in the stomach breaks down protein.

4 0
3 years ago
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