A habitat
a. has a specific set of resources.
b. is a place where a population lives.
c. has a unique set of challenges.
d. can vary a little or a lot.
e. fits all of these descriptions.
Answer: e
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A metabolic reaction will most likely reverse itself when the ____
a. pH is too high b. temperature is too low c. reactant concentration is too high d. product concentration is too high e. enzyme concentration is too high
In photosynthesis, carbon fixation occurs
A. in photosystem II. B. during photorespiration. C. in the Calvin cycle. D. in photosystem I. E. in the electron transport chain.
The overall effect of renin release will be to
A. inhibit aldosterone secretion. B. lower blood volume. C. decrease hydrogen ion excretion and decrease sodium and bicarbonate ion absorption. D. increase blood volume and pressure. E. lower blood pressure.
Which of the following statements regarding transcription is FALSE?
a. Transcription starts at the DNA template corresponding to the 5? end of the mRNA. b. Transcription starts at the DNA template corresponding to the 3? end of the mRNA. c. Transcription starts at the 3? end of the template DNA. d. Transcription happens in the 3? to 5? direction of the template DNA e. Transcription occurs in the 5? to 3? direction of the RNA.