Answer:
Gas exchange occurs at the alveoli in the lungs and takes place by diffusion. The alveoli are surrounded by capillaries so oxygen and carbon dioxide diffuse between the air in the alveoli and the blood in the capillaries
Explanation:
Answer:
1.b.) the role that an organism plays in the environment
2. d.) marshes and ponds
3.d.) both positive and negative
Explanation:
The answer would be "genes".
There are choices for this question namely:
<span>
(1) titration
(2) fission
(3) electrolysis
<span>(4) neutralization
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This is in the case of the atomic nucleus found in atoms composed of neutrons and protons. The correct answer is fission or nuclear fission to be specific. A heavy nucleus such that of high molecular weight compounds such as uranium is split into two lighter nuclei with subsequent release of massive nuclear energy.