When the blood becomes ________, it can lead to a depression in the activity of the central nervous system.
A) hypoxic
B) alkaline
C) hypocapnic
D) acidic
E) pH 7.4
Answer: D) acidic
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When considering alleles of a gene, DNA is to genotype as ______________ is/are to phenotype
A. RNA B. mutation C. proteins D. lipids E. nucleotides
Which of the following arose before all of the others listed here?
a. crocodiles b. lizards c. turtles d. snakes
All else remaining constant, which of the following would constitute hyperpolarization of a neuron at rest?
A) None of the listed responses is correct. B) Increasing K+ inside the cell C) Increasing Na+ outside of the cell D) Increasing Cl- outside the cell E) Increasing Ca2+ inside the cell
The general term used to denote a situation in which two organisms live together in a close partnership required by one or both members is ______.
A) Antibiosis B) Synergy C) Mutualism D) Symbiosis