What are the main differences in gamete production between males and females?
What will be an ideal response?
Males produce gametes from puberty until death; females produce gametes from puberty until menopause. Males produce many gametes at a time; females typically produce one or two per 28-day ovarian cycle. Males release mature gametes that have completed meiosis; females release secondary oocytes suspended in metaphase of meiosis II.
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A state of unconsciousness in which an individual cannot be aroused even by strong stimuli is
A) somnolence. B) sleep. C) stupor. D) coma. E) a chronic vegetative state.
Which statement best describes enzyme function?
What will be an ideal response?
Sympathetic fibers do not release ________
A) neuropeptide Y B) substance P C) nitric oxide (NO) D) acetylcholine E) norepinephrine
What type of cell acts to support, nourish, and regulate the development of sperm?
A. Spermatogonia B. Interstitial cells C. Sustentacular cells D. Both spermatogonia and sustentacular cells