What is released at each step in an electron transport chain?
A. carbon dioxide
B. photons
C. ultraviolet wavelengths
D. energy
E. electrons
D. energy
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What will be an ideal response?
Most atmospheric carbon dissolved in the ocean is in the form of ____
a. carbon dioxide b. carbon monoxide c. hydrocarbons d. bicarbonate and carbonate e. carbon gas
Environmental cues that influence the timing of reproduction generally do so by _____
A) increasing the body temperature B) providing access to water for external fertilization C) increasing ambient temperature most favorable for sex D) direct effects on hormonal control mechanisms
The bacterial chromosome is
A. usually circular. B. found in a nucleoid. C. found in a nucleus. D. both circular and found in a nucleoid. E. both circular and found in a nucleus.