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When Ca2+ diffuses into the cytoplasm of muscle cells and initiates the crossbridge cycle without a neurotransmitter trigger, the animal is most likely stressed .
Q11: In humans, brown adipose tissue is used
Q13: In invertebrates, the hairs of taste receptors
Q17: Autonomic nervous system pathways contain _. <br>A)three
Q22: Which structures contain valves? <br>A)arteries and veins<br>B)arteries
Q31: Magnetoreceptors _.<br>A)are well characterized and understood <br>B)are
Q32: The _ regulates the movement of food
Q34: Ruminants have _ chamber(s)in their stomachs.<br>A)one<br>B)two<br>C)three<br>D)four<br>E)five
Q36: Unlike endurance training, weight lifting will convert
Q87: The selective movement of specific small molecules
Q87: Which event occurs in the lungs? <br>A)Free