What is the purpose of spermiogenesis?
A. Produce mature sperm
B. To transform spermatids into functional sperm
C. To allow sperm to form a tail
D. None of these are correct.
Answer: B
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Cells are able to transport materials from one region of the cell to another just as the body is able to transport substances to different locations, or skeletal muscles (working with your skeleton) can transport you from the sofa to the refrigerator. What basic life process is illustrated by this description?
a. Metabolism b. Growth c. Movement d. Differentiation e. Reproduction
Imagine two rigid chambers separated by a rigid membrane that is freely permeable to water but impermeable to glucose. Side 1 contains a 10 percent glucose solution and side 2 contains pure water. At equilibrium, what will be the situation?
A) Water will continue to move from side 1 to side 2. B) Water will continue to move from side 2 to side 1. C) The hydrostatic pressure will be higher in side 1. D) The hydrostatic pressure will be higher in side 2. E) There is no way to tell what the situation will be.
Pituitary growth hormone has effects on protein metabolism similar to those of insulin, but its effects on carbohydrate and lipid metabolism are similar to those of elevated cortisol
Indicate whether the statement is true or false.
This figure shows a superior view of the cranial cavity. Which number indicates the sella turcica?
A. 1 B. 3 C. 4 D. 9 E. 10