Respond to the following statements in reference to the five stages of sperm development listed below. Answers may be used more than once or not at all.
A. This continues to undergo mitosis throughout the reproductive life of the male.
B. This represents the product of the first meiotic division.
C. This is a diploid mitotic product that then undergoes meiosis.
D. Haploid cells resulting from meiosis II of a secondary spermatocyte.
E. The male sex cell is fully formed at this stage of development.
A. Spermatogonium
B. Secondary spermatocyte
C. Primary spermatocyte
D. Spermatid
E. Sperm
You might also like to view...
The ____ regulates the movement of food into the stomach and the ____ regulates the passage of food
into the small intestine.
a. epiglottis; gastroesophageal sphincter b. epiglottis; pyloric sphincter c. gastroesophageal sphincter; epiglottis d. gastroesophageal sphincter; pyloric sphincter e. pyloric sphincter; anal sphincter
Which of the following is mismatched?
a. certain fungi; retinal destruction b. trachoma; damage to conjunctiva leading to blindness c. glaucoma; excess pressure of the aqueous humor d. astigmatism; vertical axis is longer than the horizontal axis of the eyeball e. cataract; gradual clouding of the lens
Which of the following pairs correctly matches the adrenal gland zone, or area, with the class of hormones it produces?
A) zona glomerulosa: mineralocorticoids B) medulla: glucocorticoids C) zona fasciculata: catecholemines D) zona reticularis: aldosterone
A glass capillary tube containing a chemical was placed inside a turbid pure culture of cells. Most cells moved away from the tube, but some cells were found inside the capillary tube. The chemical is likely
a. an attractant to all cells, but only a few had time to go into the tube. b. an attractant to most cells and a repellent to those within the tube. c. a repellent to all cells, and some cells by chance were within the tube. d. a repellent to most cells and an attractant to those within the tube.