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Which gland responds to light and is involved in daily rhythms in some animals?
Q8: What happens when a neuron reaches the
Q10: In vertebrates, which heart chamber supplies oxygenated
Q11: Which heart chamber is the most muscular?<br>A)right
Q33: _ is a chemical that can be
Q59: How many molecules of oxygen can bind
Q68: There are three small bones in the
Q87: Osteoporosis may occur when the activity of
Q92: Antagonistic hormones have opposite effects. Which of
Q99: Antidiuretic hormone increases fluid retention when the
Q102: Endocrine hormones are:<br>A)biochemicals released from one cell