A material composed of atoms vibrating in place
A. has high kinetic energy and is a gas.
B. has low kinetic energy and is a liquid.
C. has low kinetic energy and is a solid.
D. has high kinetic energy and is a solid.
C. has low kinetic energy and is a solid.
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We can conclude that natural selection must have acted in favor of large brains in humans because:
A. we have large brains in proportion to our body size compared to other mammals. B. large brains have allowed us to dominate the planet. C. large brains are metabolically expensive to produce and maintain. D. we would not have large brains if natural selection did not favor them. E. None of the answer options are correct.
Why is colony collapse disorder (CCD) a problem for all of us?
a. the pathogen responsible for CCD can infect multiple hosts b. the decline in honey production could cause our economy to collapse c. bees are essential as key pollinators of our agricultural crops d. actually, it’s not-- there are other pollinators that can take over for the bees e. bees could spread this disease to humans through their honey
A sample of Chargaff's data on the DNA base composition in various species is provided. Discuss several conclusions that may be drawn from this data.SPECIESATGCHuman31.031.519.418.4Fruit fly27.327.622.522.5Corn25.625.324.524.6Neurospora (fungus)23.023.327.126.6E. coli (bacterium)24.624.325.525.6
What will be an ideal response?
Which of the following is acellular?
A. virus B. bacterium C. fungus D. protozoan