Insects have
a. simple eyes.
b. ocelli.
c. ciliary eyes.
d. compound eyes.
e. "camera" eyes
D
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Nitrogen-fixing bacteria convert atmospheric nitrogen (N2 gas) into ammonium (NH4). Why is this conversion important for life on Earth?
A. Nitrogen gas is toxic. B. Ammonium is an important cleaning agent. C. Nitrogen gas leads to global warming. D. Ammonium is a very important plant nutrient.
Due to their location, baroreceptors in the large systemic veins and the heart function primarily to monitor
A) blood flow. B) heart rate. C) total peripheral resistance. D) blood volume. E) mean arterial pressure.
In your own multicellular body, cells with different functions have different DNA.
a. true b. false
Chemolithotrophs obtain their energy from ________.
A. inorganic molecules that directly transfer a phosphate group to ATP during substrate-level phosphorylation B. inorganic molecules that are reduced, providing electrons to create a proton motive force that drives oxidative phosphorylation C. inorganic molecules that are oxidized, providing electrons to create a proton motive force that drives oxidative phosphorylation D. organic molecules that are oxidized via a glycolytic pathway and the TCA cycle