Many poisonous snakes share warning colors of red, yellow, and black. This is an example of:
a. Batesian mimicry.
b. mutualism.
c. camouflage.
d. Müllerian mimicry.
e. character displacement.
d
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Which of the following characters are considered analogous?
Which individual studied variations in the traits of pea plants and developed some of the basic principles of genetics?
a. Franklin b. Darwin c. Watson d. Crick e. Mendel
You hang a microscope slide from a submerged, L-shaped PVC pipe in lake water that is 2 feet deep. The slide hangs 6 inches below the surface of the water and remains there for eight weeks. When you remove it and bring it to your lab for observation, you
see that algae, bacteria, and even some fungi have colonized the slide. You determine that you are looking at a(n) A) biofilm. B) community of eukaryotes. C) biological weapon. D) endotoxin.
About 99 percent of the UV radiation that the sun showers on Earth is blocked by:
A) the magnetic fields that surround the Earth. B) stratospheric ozone. C) ground level ozone. D) stratospheric greenhouse gases, such as CO2 and water. E) tropospheric greenhouse gases, such as CO2 and water.