In humans, fermentation provides ATP energy for
What will be an ideal response?
short-term, strenuous muscular activity
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In general, swimming is performed with flagella, whereas gliding uses other cellular components such as pili
Indicate whether the statement is true or false.
Which statement best describes a DNA mutation?
a. DNA polymerase adds an incorrect base during replication. b. DNA is damaged by UV irradiation. c. A mistake in DNA sequence is repaired during replication. d. A permanent change occurs in the nucleotide sequence of DNA. e. Proofreading during replication replaces a mismatched nucleotide.
Cactus spines are modified leaves adapted for dry climates, while the leaves of the Venus fly trap plant are adapted to
capture insects. These structures are therefore ____.
a. analogous b. homologous c. recessive d. homozygous e. morphogenic
Estimates vary, but reasonable numbers for extinction rates suggest that extinction is occurring at a rate approximately
____ times above the normal background rate. a. 10 b. 100 c. 1000 d. 10,000 e. 1,000,000