Water passes through lipid bilayers (select all correct choices):
A. directly by diffusion.
B. through aquaporins by facilitated diffusion.
C. through protein pumps and active
transport.
D. through gap junctions.
E. through hemidesmosomes.
A,B
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Sister chromatids are separated from each
other during ____ of meiosis.
a . telophase II b. anaphase I c. prophase II d. anaphase II e. metaphase II
In which of the following ways does the fly
kill a fire ant?
a. A female fly lays an egg in the ant's soft tissues, and in the process of development, the resulting larvae kills the ant. b. A fly (male or female) injects a poisonous substance in the ant which results in paralyzing its muscles. c. A fly (male or female) injects a substance that sterilizes the ant. d. A fly (male or female) causes the ant's death by depriving it from its necessary resources and habitat. e. A fly (male or female) injects a substance that sterilizes the ant and paralyzes its muscles
Over many generations, the population of snakes should evolve toward striped snakes that flee by turning or checkered snakes that flee straight.
a. true b. false
Adenine always binds to thymine and cytosine always binds to guanine
a. true b. false