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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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
Biology & Microbiology
The chance of an organism being preserved as a fossil is very low
a. true b. false
Biology & Microbiology