Which of the following is common to both extracellular and intracellular digestion?
A. the ability to phagocytose food particles
B. a slow speed of digestion
C. the presence of a digestive cavity
D. the ability to consume both large and small food items
E. None of these characteristics are common to both extra- and intracellular digestion.
A. the ability to phagocytose food particles
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Complexity in cell communication from molecular cross talk can be due to (select all correct choices):
A. inhibition of one signaling pathway by a component of another signaling pathway. B. an intersection of two signaling pathways that allow two signals to enhance the cellular response. C. signaling molecules interacting and inhibiting or enhancing their activation potential. D. None of these choices is correct.
Stabilizing selection occurs when
a. the environment controls which organisms will survive. b. humans determine which organisms will survive.
c. the extremes of the population have a lesser chance to survive. d. the extremes of the population have a better chance to survive. e. the organisms on one extreme of the population have a better chance to survive than those on the other extreme.
Based on this DNA fingerprint, who is guilty of the sexual assault?
1.Suspect 1
2.Suspect 2
3.Neither of the two tested suspects committed the crime.
4.Neither of the suspects can be excluded.
In the equation ?G'o = nF ? ?E'o, ________.
A. when the difference in reduction potentials between the electron donor and electron acceptor is small, the yield of free energy is great B. the difference between the reduction potentials of the redox participants is inversely proportional to the change in free energy C. the greater the difference in standard reduction potentials between the electron donor and electron acceptor, the greater the free energy available to do work D. the greater the difference in reduction potentials of the participants of the redox reaction, the smaller the energy yield to the surroundings