According to scientific evidence, earth’s earliest atmosphere lacked oxygen. Over time, oxygen was added to the atmosphere.

2 answers:

5 0

The following statements explain how oxygen was introduced into the earliest atmosphere of the Earth and how the presence of oxygen affected life on Earth.

B) Oxygen is needed to carry out many life processes. The addition of oxygen to the earth's atmosphere assisted with the development of eukaryotic organisms.

D) Photosynthesis was carried out as cyanobacteria evolved. Oxygen is a product of photosynthesis.

Travka [436]3 years ago

4 0

The correct answers are:
B) Oxygen is needed to carry out many life processes. The addition of oxygen to the earth's atmosphere assisted with the development of eukaryotic organisms.
D) Photosynthesis was carried out as cyanobacteria evolved. Oxygen is a product of photosynthesis.

You might be interested in

A cell has 20 chromosomes. How many cells will there be after meiosis II?

zysi [14]

Answer:

c) 10 chromosomes

6 0

1 year ago

Freckles is a dominant trait (FF or Ff), and the lack of freckles is a recessive trait (ff). A mother and a father who both have

Paraphin [41]

Heterozygous means both. so the answer would be Ff mom and Ff dad

3 0

3 years ago

____ means "wing without tooth.

Nimfa-mama [501]

What are your choices? Pteranodon means wing without tooth.

8 0

3 years ago

These white blood cells are particularly attracted to sites of parasitic infections. They are known as

Harman [31]

They are known as eosinphils

Hope this helped.

b

8 0

3 years ago

Melting change from

kondor19780726 [428]

Solid to a liquid

Melting is the term used to describe when a solid is raised above its melting point. This causes the solid to change state into a liquid. This process is known as melting.

4 0

3 years ago