Sexual selection favors
A. large males.
B. ornamentation such as bright feathers in
male birds.
C. traits that reduce an individual's
survivorship.
D. traits that increase an individual's access
to reproductive opportunities
E. All of these.
D
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Posttranslational modification includes ____
a. cleavage of poly-A tails from mRNA b. the binding of miRNAs to mRNA c. the chemical modification, processing, and degradation of proteins d. chromatin remodeling e. splicing of mRNAs
What is the independent variable in this figure?
A. temperature B. amount of pollen collected C. glucose production D. rate of oxygen production E. rate of carbon dioxide production
The vertebral column develops from
a. the notochord. b. the hollow, dorsal nerve cord. c. the gill slits. d. the tail. e. more than one of these
In stream and river ecosystems, the grazing food chain is of minor importance compared with the detrital food chain
Indicate whether the statement is true or false