Which biologist first proposed that all organisms share a common ancestry?
A) Aristotle B) Linnaeus C) Whittaker D) Woese E) Darwin
E
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What diffuses across the narrow synaptic cleft between the presynaptic axon and the postsynaptic cell to transmit a nerve impulse?
A. neurotransmitter B. electrical impulse C. Na+ ion D. vesicle E. action potential
Living cells maintain biochemical reactions far from equilibrium conditions. They do this by constantly manipulating
the concentrations of reactants and products. Why is it important that a state far from equilibrium be maintained? What will be an ideal response?
Competition among individuals of the same species is ________ competition
A) density-independent B) intraspecific C) Type II D) Type III
Which statement regarding the scientific method is FALSE?
(a). Experimental results are reported in scientific journals. (b). Hypotheses are finally proven as absolutely true or false. (c). The control is not subjected to the experimental variable. (d). Statistical tests may be used to analyze experimental results. (e). Experimental results are often summarized in a graph or table.