Sperm are produced in the ____
a. epididymis
b. seminiferous tubules
c. penis
d. prostate gland
e. vas deferens
ANSWER: b
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Which of these best represents natural selection?
A) Recessive albinism is more common among the Hopi of Arizona than in the general population of the U.S. B) A gradual change in specific human mitochondrial DNA sequences occurs along the Nile river in Egypt. C) ABO blood type frequencies are similar in northern Africa, southern Spain, and the middle east. D) Lactose tolerant alleles are very prevalent in herding populations that drink milk as a staple.
Which of the following is considered the opposite of endocytosis?
a. Pinocytosis b. Phagocytosis c. Exocytosis d. Receptor-mediated endocytosis
What happens during interphase?
In some plants, the direction of growth changes in response to contact with an object. This is called __________.
Fill in the blank(s) with the appropriate word(s).