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Artemon [7]
3 years ago
11

Oxygen was initially created in Earth's atmosphere by _____. volcanoes outgassing cyanobacteria photosynthesizing greenhouse eff

ect Ozone breaking down
Biology
2 answers:
VikaD [51]3 years ago
7 0

The answer might be Cyanobacteria photosynthesizing

SCORPION-xisa [38]3 years ago
6 0

The correct answer is B. Cyanobacteria photosynthesizing

Explanation:

Oxygen is a chemical element necessary for most life forms to exist, this includes most animals as they require oxygen for multiple body functions. This element is nowadays one of the most abundant elements in the atmosphere and due to this, life forms are abundant and diverse; however, before photosynthetic organisms oxygen was not part of the Earth's atmosphere. This can be explained as organisms that rely on photosynthesis, use carbon dioxide, water, and sunlight and release oxygen into the atmosphere. Due to this, it is believed oxygen in the atmosphere was the result of cyanobacteria and other primitive organisms that carried out photosynthesis.

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What can cause rapid revolution?
Yuki888 [10]

Answer:

Although scholarly debate continues about the exact causes of the Revolution, the following reasons are commonly adduced: (1) the bourgeoisie resented its exclusion from political power and positions of honour; (2) the peasants were acutely aware of their situation and were less and less willing to support.

Explanation:

brainliest?

7 0
2 years ago
Plants using the CAM pathway occur in many locations but are most common in very arid locations, such as deserts. What deserts o
Paladinen [302]

The desert that occurs in North America is the Great Basin Desert and it is located at Nevada of North America.

CAM pathway, which is also called Crassulacean Acid Metabolism, is a pathway that involves carbon fixation that occurs in plants growing in arid areas.

With this pathway these plants are able to photosynthesize during the day, but only exchange gases at night.

An arid habitat is an environment that is characterized by extreme lack of water, example is the desert.

In North America, the desert that occurs there is the Great Basin Desert. It spreads into different states which include:

  • Nevada
  • Western Utah,
  • Eastern California, and
  • Idaho.

But the major part of Nevada is occupied by the Great Basin Desert.

Learn more about CAM pathway here:

brainly.com/question/7061938

6 0
2 years ago
How do scientists think protobionts formed?
PSYCHO15rus [73]

Answer:

c

Explanation:

The very primitive and early microorganisms on the earth's surface were protobionts. Protobionts are cell-like microscopic structures, and they are made up of organic and inorganic molecules present in a lipid bilayer membrane. The layers of the lipid membranes were folded into bilayers and transformed into a bubble shape when placed in water. These membranes were selectively permeable and also observed shrinkage and swelling in osmotic conditions. Protobionts also possess the characteristics of reproduction.

(please vote me brainliest)

4 0
2 years ago
g A ________________ gradient is directly used to provide the energy for ATP synthesis in the mitochondria.
adelina 88 [10]

Answer:

Elerochemical gradient

Explanation:This coccus during  the  process of  chemiosmosis in oxidative phosphorylation during cellular respiration. It is the  electrochemical gradient that provides the energy  needed by ATPase Synthase for the phosphorylation of ADP tp ATP, necessary for ATP production

The electochemical gradient is due to  gradient produced from the pumping of protons by the proton  motive force(PMF) into the intrammenbrane space. from the matrix.The accumulation leads the the production of electrochemical gradients because the Protons diffuse across  from higher gradient in the intramembrsne space into the lower concentration gradient the matrix.Therefore,energy is produced  as the diffusion takes place.

The ETC, is the source of generation of PMF, which pumps protons across into the intramembrane, for the electrochemical gradients productions

8 0
3 years ago
Look at this picture and help me out plz
Lorico [155]

<u><em>I believe it is A</em></u>) because i pulled research and says this...

<u><em>Research:</em></u> The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond.

Hope this helps...

5 0
3 years ago
Read 2 more answers
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