put the steps of mitosis in the correct order. top is first, bottom is last.
• metaphase
• anaphase
• prophase
• telophase
1) prophase
2) metaphase
3) anaphase
4) telophase
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In skeletal muscle, the dihydropyridine and ryanodine receptors are linked to allow for __________ Ca2+ release that is independent of local Ca2+concentrations
Fill in the blank with correct words.
If the cusps of an atrioventricular valve are damaged or too short to meet at the center of the valve or do not close completely during the normal point in the pumping cycle, blood may flow backwards. This is called ________.
Fill in the blank(s) with the appropriate word(s).
GnRH
a. stimulates both FSH and LH secretion. b. is inhibited by testosterone. c. has low-level activity during the prepubertal period. d. both stimulates both FSH and LH secretion and is inhibited by testosterone. e. all of these answers.
Which of the following is true regarding the autonomic nervous system?
A) It usually controls conscious actions. B) It uses the neurotransmitter acetylcholine exclusively. C) It controls skeletal muscle contraction. D) It has no ganglia along its nerves. E) Its denervation would cause hypersensitivity.