In the experiment studying bioluminescence and the predation of copepods by fish, a control group of jars with bioluminescent dinoflagellates experienced a higher predation rate of copepods by stickleback fish than in the jars with nonbioluminescent dinoflagellates. This provided significant evidence that
A. All of the answer choices are correct.
B. natural selection has favored the survival of dinoflagellates that can emit light in flashes when disturbed.
C. copepods that would eat dinoflagellates benefit from fleeing when the protists bioluminesce.
D. dinoflagellates can avoid being eaten by increasing the flashing, and attracting predators to eat the copepods near them.
E. natural selection has favored the survival of copepods that move rapidly away from flashing bioluminescent dinoflagellates.
A. All of the answer choices are correct.
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When an error of mitosis or meiosis results in a diploid gamete, the gamete is said to be ____, which can result in
____.
a. reduced; allopolyploidy only b. reduced; autopolyploidy only c. unreduced; allopolyploidy only d. unreduced; autopolyploidy only e. unreduced; both allopolyploidy and autopolyploidy
What is the chemical in tobacco smoke that's able to activate the brain's reward pathways, thus making smoking a very addictive process?
What will be an ideal response?
Scientists have discovered that when they provide supplemental food for hares, their density tripled. The figure above shows cycles of lynx and hare populations over a century's time. What do you predict would happen to the lynx and hare populations in an area where hares were provided supplemental food for one year?
A. The lynx population would increase 1-2 years after the hares increased, then both would continue cycling down and up. B. The lynx population and the hare population would increase simultaneously, and stay at a stable high level permanently. C. The lynx population would decrease as hares increased due to exploitative competition, then slowly rise back to the original level. D. The hare population would increase, but the lynx population would be unaffected.
For the simple linear regression, Y = b + mX, which variable is considered the intercept?
A. m B. X C. Y D. b