What primary chemical reaction do scientists suggest for the evolution of an aerobic environment to an anaerobic one?

Biology

1 answer:

ivann1987 [24]3 years ago

4 0

Answer:

Oxygenic photosynthesis

Explanation:

The process of oxygenic photosynthesis in which organisms use atmospheric carbon dioxide and fix it in the presence of sunlight into the organic nutrients led to the transition of anaerobic conditions on the primitive earth into the aerobic ones.

The oxygenic photosynthesis uses a water molecule as an electron donor. The water molecule is oxidized and oxygen gas is released as a by-product. This process led to the accumulation of oxygen in the atmosphere of the primitive earth.

You might be interested in

What happens to your pupil in dim light and in bright light?

BlackZzzverrR [31]

Your pupil expands in dim light and contracts in bright light.

7 0

3 years ago

What is the voltage across a membrane called?

Marina86 [1]

It is called a cell membrane potential

3 0

3 years ago

Why are lipids unique when compared to the other macromolecule groups?

Veronika [31]

Lipids are unique because, they are made from one carbon skeleton unlike the other macro molecules groups which are made from smaller building blocks.
With the exception of steroid hormones, lipids are generally hydrophobic. Also lipids are relative small molecules when compare in size with other macromolecules.

6 0

4 years ago

Muscle contraction occurs due to a series of specific steps that take place within the body. Which of the following steps does n

Burka [1]

Answer:

Actin filaments return to their original positions (does not occur in muscle contraction, according to the sliding filament model).

Explanation:

5 0

3 years ago

Name the three types of point (gene) mutations

Snowcat [4.5K]

Answer: base substitutions, deletions and insertions

4 0

3 years ago