Male anglerfish often attach to the female so they can
a. utilize the female's increased ability to find prey.
b. utilize the female's increased predator avoidance.
c. provide sperm to fertilize eggs.
d. avoid being eaten by the female.
e. obtain growth hormones from her bloodstream.
C
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Which of the following has a coefficient of relatedness of 0.25?
A) a father to his daughter B) a mother to her son C) an uncle to his nephew D) a brother to his brother E) a sister to her brother
Flowers that bloom in early spring versus those that bloom in late summer experience which type of reproductive
isolation?
a. behavioral b. ecological c. gametic d. temporal e. mechanical
The grouping that would include the largest number of species is the
A. genus. B. phylum. C. domain. D. order.
Plasmids are small, circular, supercoiled DNA molecules found in some bacteria. They usually do not carry essential genes, but some plasmids, such as R (resistance) plasmids, carry genes coding for antibiotic resistance. All plasmids have their own origin of replication, so that they are replicated along with the host chromosome and passed along to progeny cells. Only some plasmids possess genes that allow for transmittal to other bacteria by the process of conjugation.
a. true b. false