A eukaryotic flagellum can either push a cell through a liquid environment or pull it through depending on the undulating pattern of movement.
Answer the following statement true (T) or false (F)
True
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Of the organisms studied, which group has the
most species found to be threatened?
a. fishes b. angiosperms c. mammals d. amphibians e. insects
Most plants appear green because:
a. Chlorophyll is a pigment that reflects green wavelengths of light b. Carotenoids are pigments that reflect green wavelengths of light c. Carotenoids are pigments that absorb green wavelengths of light d. Chlorophyll is a pigment that absorbs green wavelengths of light
Why do tropical rainforests exist in soils that are nutrient-poor?
A) There is a low rate of decomposition, and plants cannot absorb the "undigested" nutrients. B) There is a low rate of decomposition, and plants quickly absorb the nutrients as they are available. C) There is a high rate of decomposition, and plants quickly absorb the nutrients as they are available. D) The plants cannot use the types of nutrients produced by tropical decomposers.
What explains the coloration of giant kelp?
A. It is the result of waste products stored in the tissues. B. It warns grazers of their toxic properties. C. It facilitates absorption of the blue-green light prevalent in their environment. D. It facilitates absorption of the brown light prevalent in their environment. E. It camouflages them from grazers.