When lions prey on a herd of antelopes some are killed and some escape. Which part of Darwin's concept of natural selection might be used to describe this situation?
a. reproductive isolation
b. descent with modification
c. acquired characteristics
d. survival of the fittest
Answer: d. survival of the fittest
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A researcher isolates a species of fungus that only reproduces sexually. He introduces individual fungi—all of the same mating type (e.g., with the same mating type alleles)—into a petri dish. What do you expect will happen with the fungi in this dish?
A. Fungi in the dish will mate, forming spores via sexual reproduction. B. Fungi in the dish will not mate, but will from spores via asexual reproduction. C. No spores will be formed by fungi in the petri dish.
Which term did Mendel use when referring to traits that disappeared in the F 1 generation?
a. recessive b. discontinuous c. reciprocal d. continuous
What does a phosphate group transfer from
ATP do to active transport pumps?
a. opens channels that allow for the movement of solutes b. changes their shapes c. ionizes them d. causes them to fuse with the surrounding phospholipid membrane e. destroys them
Which of the following functions to isolate particular chemical activities from the rest of the cell?
A. ribosomes B. peroxisomes C. chloroplasts D. nucleus E. Golgi complex