When sperm enter the epididymis, they ________

A) are mature
B) are incapable of moving on their own
C) are ready to fertilize an egg
D) come from the vas deferens


B

Biology & Microbiology

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Which structure, A, B, C, or D, is the corpus luteum?

1.A 2.B 3.C 4.D

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A phospholipid molecule contains a “head” portion that ____

a. is hydrophilic b. is derived from cholesterol c. contains two fatty acid chains d. is similar in structure to a triglyceride e. forms a hydrophobic barrier

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During aerobic respiration, which of the following directly donates electrons to the electron transport chain at the lowest energy level?

A) NADH B) ATP C) ADP + i D) FADH2

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The chance of an organism being preserved as a fossil is very low

a. true b. false

Biology & Microbiology