Carbon can form ___ covalent bonds
A) 8 B) 1 C) 4 D) 2
C
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Genetic drift results in ________________ evolution, which refers to changes in a population that are not due to differences in fitness
Fill in the blank with correct word
During the relative refractory period, a neuron can experience hyperpolarization but not depolarization
Indicate whether the statement is true or false
Descent of the testes is stimulated by the ________.
A. absence of the X chromosome B. presence of the X chromosome C. presence of estrogens D. presence of Y chromosome E. presence of testosterone
What reaction does pepsin catalyze?
A. Breakdown of proteins into peptides B. Breakdown of starches into disaccharides C. Breakdown of glucose to glycerol D. Breakdown of fats to fatty acids E. Breakdown of dipeptides to amino acids