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nlexa [21]
3 years ago
13

I need help with this

Biology
1 answer:
weqwewe [10]3 years ago
6 0

Answer:

c is ox and b it the h20 and a is the plastic cup?

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What is the superior, broad border of the heart called?.
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Left ventricle

Explanation:

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The body system responsible for exchange of gases between the body and the environment is the A digestive system B respiratory s
Aleonysh [2.5K]

Answer:

The correct answer is B respiratory system

Explanation:

Respiratory system of our body play a significant role in the inhalation of oxygen into  and exhalation of the waste product known as carbon dioxide from our body.

        Respiratory system basically composed of diaphragm and respiratory muscles.The volume of diaphragm increases during inhalation and decreases during exhalation. This is called the elastic nature of lungs which helps in efficient gas exchange.

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<span>Of these choices, neuronal communication between the brain and the muscles of the leg is best conceptualized as electrical and chemical signaling.
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some scientists study the way fossils and living organisms are distributed, or spread out, on Earth. What is the area of study c
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Biogeography is the study of geographical distribution of fossils, various species (plants and animals) and ecosystems throughout geological time and space

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