The exchange of oxygen, food, and waste between mother and fetus occur in the placenta.
<span>The atmosphere of Venus is mostly carbon dioxide, 96.5% by volume. Most of the remaining 3.5% is nitrogen. Early evidence pointed to the sulfuric acid content in theatmosphere, but we now know that that is a rather minor constituent of theatmosphere.
T</span>he atmosphere of Neptune consists mainly of hydrogen and helium, but about 2.5-3% of the atmosphere is methane. Like Uranus, clouds in Neptune's atmosphere<span> are composed of crystals of methane.</span>
<span>Saprobe - An organism that derives its nourishment from nonliving or decaying organic matter.
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Answer:
Cells make up tissues, tissues make up organs, and organs make up organ systems. For instance, digestive system organs cooperate to process food. The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.
Answer:
G
Explanation:
TATC is being inserted into the sequence
