In ____ selection, individuals with a phenotype near the mean are favored over those at the phenotypic extremes
a. natural
b. disruptive
c. stabilizing
d. directional
e. frequency-dependent
c
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What percentage of heart cells are part of the cardiac conduction system?
a. 1 percent b. 10 percent c. 20 percent d. 25 percent e. 100 percent
Gene conversion can be observed in fungi by identifying aberrant ratios in the ascus. Which of the following represent possible aberrant ratios caused when there is no mismatch repair of base-pair mistakes in the heteroduplex region?
A) 4:4 B) 3:1:1:3 C) 5:3 D) 6:2 E) 3:3:2
The tissue containing nerves, blood, and lymph vessels in teeth is known as the:a
dentin. b. cementum. c. enamel. d. tooth socket. e. pulp cavity
What is the site of primary sensory integration in the brain?
A. Cerebrum B. Thalamus C. Medulla oblongata D. Corpus callosum E. Cerebellum