Density-independent controls over population growth include:
a. parasites
b. temperature
c. disease
d. competition for food
e. competition for shelter
b
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Paedomorphosis is
A. the formation of limbs from fins in the evolution of land vertebrates. B. the change from radial to bilateral symmetry in the evolution of plants and animals. C. the retention of juvenile traits in an adult organism. D. an earlier development of adult traits in an organism. E. the development of different types of eyes from a simpler form.
Retroviruses are unique in that they
A. replicate in nervous system cells. B. do not have a capsid. C. use RNA as a template to make DNA. D. use DNA as a template to make RNA.
Gene flow, defined as the movement of genes from one population to another, can take place by migration as well as
A. mating between individuals of adjacent populations. B. mating with certain trait-containing individuals. C. mating with dominant phenotypes. D. removing the barriers between the populations. E. physical movement of genes within an individual by transposons.
One of two of a ribosome's binding sites for tRNA during translation; The A site holds the tRNA that carries the next amino acid in the polypeptide chain (A stands for aminoacyl tRNA)
What will be an ideal response?