Cancer cells are not
A) contact inhibited.
B) transplantable.
C) invasive.
D) heritable.
A) contact inhibited.
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Salmon are well known for their ability, after growing to maturity in the ocean, to find their way back to the streams where they were born in order to breed. For this kind of navigation, they likely:
A. use magnetotaxis only. B. use map information only. C. rely on kinesis only. D. use a variety of environmental cues. E. use only a combination of magnetotaxis and kinesis.
Which of the following will not reduce the activation energy of a reaction?
A. addition of a catalyst that shifts Keq higher, thereby increasing product formation B. addition of a catalyst that enables the reaction to proceed by a different mechanism C. addition of an enzyme (catalyst) that binds to and stabilizes the transition state D. addition of an enzyme (catalyst) that can bind to the reactants in an orientation that favors the reaction E. addition of an enzyme (catalyst) that binds to metal ions and hydrogen ions that participate in the reaction
Adaptive radiation is likely to have led to which of the following?
A. The divergence of a single pea aphid population into two distinct species. B. The evolution of the horse via changes in climate and food supply. C. The long period of equilibrium in a bat species in the Mariana Islands. D. The 1,000 species of Drosophila found dispersed throughout the Hawaiian Islands.
Because __________ cells have a NAD+ shuttle
built into their mitochondria, they deliver 38 ATP molecules per glucose molecule. a. liver b. heart c. kidney d. liver and heart e. liver, heart, and kidney