Answer:
Grass -Grasshopper - Frog - Phyton - Eagle
Answer: Serotonin
Explanation:
Serotonin is an hormone, derived from the amino acid, tryptothan. It is involved in vasodilation, sleep regulation, mood changes, capillary permeability, and causes contraction of smooth muscles like that of the stomach to signal hunger.
Answer:
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
Explanation:
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