Many male birds will expend a great deal of
energy building nests. Females will mate with
the males who build the best nests. This is best
described as an example of
a. natural selection.
b. sexual selection.
c. runaway selection.
d. the Red Queen effect.
e. disruptive selection
B
You might also like to view...
Which of the following statements about adhesion molecules is false?
A. Cadherins and pectins are both transmembrane proteins. B. Cadherins and integrins provide the molecular mechanisms for adhesion in animals, but not plants. C. Cadherins adhere adjacent epithelial cells to one another. D. Integrins bind epithelial cells to the extracellular matrix. E. Pectins are found in plant tissues, but not animal tissues.
The islands of Hawaii lie approximately 3200 km from the nearest continent and so have been
geographically isolated for most of their history. Nearly 800 species of fruit flies have been discovered on these islands, and molecular and anatomical data suggest that the vast majority of these species arose from a single ancestral species that colonized the Hawaiian Islands from eastern Asia. The divergence into multiple different species is an example of __________.
a. adaptive radiation b. sexual selection c. coevolution d. migration
Which of the following glands increases blood calcium levels
A. pituitary B. adrenal C. thyroid D. parathyroid
________ can be detected through a blood test that detects a specific antigen called PSA
Fill in the blank(s) with correct word