Animals that swim about freely are
A. plankton.
B. benthic.
C. nekton.
D. zooplankton.
C. nekton.
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For water to vaporize
A. energy must be supplied. B. energy must be released. C. hydrogen bonds are broken. D. both energy must be supplied and hydrogen bonds broken. E. both energy must be released and hydrogen bonds broken.
Five sample bags of rice seed arrive at a lab that includes both GMO blight-resistant rice and
rice that does not have the disease-resistant gene. Assuming the scientist has a known sample of the blight-resistant rice, how might she determine bags contain additional samples of this rice strain?
a. by using a DNA profile b. by developing a genetic marker c. by inserting the gene into a plasmid d. by extracting stem cells
What are the functions of cytochrome c and ubiquinone?
a. They translocate protons from the matrix to the inner mitochondrial space. b. They shuttle electrons between the protein complexes. c. They synthesize water from molecular oxygen. d. They produce ATP by substrate-level phosphorylation. e. They produce ATP by oxidative phosphorylation.
When a protein denatures, what happens to it?
a. it becomes a functional protein b. it combines with sugars to become a signaling protein c. it changes its shape and to assume another function d. it unwinds and loses its three dimensional shape e. it is transported out of the cell