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lana [24]
3 years ago
11

PLEASE HELP!!!! Which of the following were responsible for changing the oxygen content in

Biology
2 answers:
Nesterboy [21]3 years ago
4 0

Im not 100% sure but the best answer I can give is Prokaryotes because they came to be around the time oxygen did as well.

Natasha_Volkova [10]3 years ago
4 0

Answer:

prokaryotes

Explanation:

i took the quiz

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Sometimes characteristics are not heritable but are environmentally influenced. describe three characteristics that are not inhe
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<h2>Answer:</h2>

Approximately all characteristics are inheritable but some characteristic of our body is affected by the external environment.

<h3>Growth:</h3>

Growth is the basic property of a living organism. It can be controlled by the genes like height. But mainly it is dependent on the available nutrients to the body. So a healthy environment with all necessary nutrients leads to healthy perfect growth of the body.

<h3>RB C count:</h3>

Red blood cells counts also effected by environment. The environment which has a sufficient amount of oxygen leads to low blood count as compared to an environment with low oxygen which leads to high red blood cell count.

<h3>Immunity:</h3>

Immunity is the property of living organism to fight against the harmful agents that invade the body.

People most exposed to germs are more immune than people who often face the germs.

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4 years ago
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Answer:

A MRNA

Explanation:

6 0
3 years ago
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Which type of exercise strengthens the skeletal and the cardiac muscles?
crimeas [40]

running, jogging, walking.

cardiac means heart so what basically works out your heart. running, that's why you pant. Eventually you will see that your breathing has improved.

8 0
4 years ago
Three characteristics of enzymes​
choli [55]
1)Enzyme is a protein. The main material of an enzyme is protein
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6 0
3 years ago
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In the initial period of learning, ________ describes when an organism learns to connect a neutral stimulus and an unconditioned
Alexandra [31]

Answer:

The given blank can be filled with acquisition.

Explanation:

An unconditioned stimulus provokes the unlearned response and an unconditioned response is the naturally taking place reaction. A neutral stimulus is illustrated as the stimulus that prior to conditioning do not generate any kind of response.  

A type of learning wherein a subject begins to react towards neutral stimulus as it would perform with another stimulus by acquiring the path of associating the two stimuli is termed as classical conditioning.  

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