What are the three major stages of spermatogenesis?
a. mitotic proliferation, sperm differentiation, and delivery
b. testosterone secretion, sperm differentiation, and packaging
c. mitotic proliferation, meiosis, and packaging
d. testosterone secretion, meiosis, and packaging
e. mitotic proliferation, meiosis, and delivery
c
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Which of these hormones can enter the target cell and bind to receptors in the nucleus?
A. Luteinizing hormone B. Insulin C. Testosterone D. Growth hormone E. Angiotensin
The process of filtration in the kidney is most accurately described as
A) highly specific. B) relatively nonspecific. C) completely nonspecific.
The ________ carry blood toward the lungs.
A. aorta and pulmonary arteries B. superior and inferior venae cavae C. pulmonary arteries and veins D. pulmonary trunk and veins E. pulmonary trunk and arteries
A muscle that raises or elevates a body part is called a
a) pronator. b) tensor. c) flexor. d) depressor. e) levator.