The maximum volume of air that can be moved in plus the maximum volume of air that can be moved out during a single breath is the
Select one:
a. tidal volume.
b. inspiratory reserve volume.
c. expiratory reserve volume.
d. vital capacity.
e. residual volume.
d. vital capacity.
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Which of the following mutations would be most likely to have a harmful effect on an organism?
A) a nucleotide-pair substitution B) a deletion of three nucleotides near the middle of a gene C) a single nucleotide deletion in the middle of an intron D) a single nucleotide deletion near the end of the coding sequence E) a single nucleotide insertion downstream of, and close to, the start of the coding sequence
The life cycle of a sexual reproducing organisms includes:
A. mitosis and meiosis. B. mitosis, meiosis, and fusion of the gametes. C. meiosis and fusion of gametes D. only mitosis E. only meiosis
Lyell’s ideas that gradual, everyday geologic processes had shaped Earth challenged the prevailing estimate of Earth’s
age at ____, because ____.
a. 6 billion years old; only catastrophic geologic events could sculpt Earth’s surface b. 600 million years old; species needed millions of years to evolve c. 600,000 years old; nobody had observed the evolution of species d. 60,000 years old; geologic processes quickly change landscapes on Earth’s surface e. 6,000 years old; such slow geologic processes would take millions of years to sculpt Earth’s surface
A constriction of an arteriole in response to stretch of the arteriole smooth muscle is called
A) active hyperemia. B) hypoxia. C) myogenic response. D) reactive hyperemia. E) ischemia.