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labwork [276]
2 years ago
6

The development of ____ factored in the development of complex organisms. a. ozone c. cyanobacteria b. oxygen d. all of the abov

e Please select the best answer from the choices provided A B C D
Biology
1 answer:
MrRissso [65]2 years ago
5 0

Answer: The correct option is D.

All of the above.

Explanation:

This is because complex organisms developed from cyanobacteria and release of oxygen. Cyanobacteria is a blue green algae and first organism that photosynthesized. It uses carbondioxide and water in the presence of the chlorophyll present and light energy to produce carbohydrates and oxygen. The oxygen released into the atmosphere brought about respiration and development of ozone.

This great oxidation event changed the Earth and life on Earth too.

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2 years ago
dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, an
AysviL [449]

Answer:

The correct option is D, that is, THEIR FUNDAMENTAL NICHE HAS BEEN COMPROMISED.

Explanation:

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6 0
3 years ago
) You treat some cells with a proteolytic enzyme that is too large to penetrate the cell membrane (Set 1). Another group of cell
Advocard [28]

Answer:

Proten W

Explanation:

SDS-PAGE gel is a method used for the separation of proteins in which proteins are separated based on their length (smaller proteins move faster through the gel, due to less resistance).

When treated with proteolytic enzymes, proteins are cut and become short fragment. This means that the fragments formed after the use of proteolytic enzymes, will move faster and thus, migrate a longer distance. Proteolytic enzymes in Set 2 cells will act only on plasma membrane proteins (because they cannot penetrate), while in Set 2 they will act on both, plasma membrane and interior proteins. Control group will have only the large fragments (not treated with enzyme).

Protein W travels the same distance on a gel of proteins from Set 1 and Set 2, but different than control group. It means that the proteolytic enzyme worked the same on Set 1 and Set 2.

3 0
3 years ago
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