A human female could ovulate about ____ times in her lifetime
a. 40
b. 400
c. 4,000
d. 40,000
e. 400,000
ANSWER: d
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Which of the following statements best defines the feature(s) linking all animals, but separating them from all other organisms?
A. They are terrestrial or secondarily aquatic. B. They have digestive enzymes. C. They are heterotrophic. D. The nature of their small subunit rRNA gene sequences is different. E. All of the choices provided are correct.
What are the cells that are specialized to produce and conduct electrochemical impulses called?
A. neurons B. dendrites C. axons D. fibroblasts E. astrocytes
How many molecules of ATP are produced at each stage of aerobic respiration?
What will be an ideal response?
Which of the following is a type of postzygotic
reproductive isolating mechanism? a. temporal isolation b. mechanical isolation c. behavioral isolation d. hybrid sterility e. all of these