Rods and cones are located in the ____.
A. lens
B. cornea
C. pupil
D. iris
E. retina
Answer: E
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Cycads and ginkgos differ from all other seed plants by:
A. having flagellated sperm within the pollen B. lacking cambium C. having the sexes separated on different trees D. being pollinated by wind instead of insects E. All of the ways mentioned in the other choices are correct.
Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.
Answer the following statement true (T) or false (F)
Two snapdragons heterozygous for alleles that encode red and white flower color are crossed. If the
red and white alleles show incomplete dominance, what will be the phenotypes and ratios of the F2 generation?
a. 100% pink b. 100% red c. 50% white, 50% red d. 25% red, 50% pink, 25% white e. 25% pink, 50% white, 25% red
A membrane is NOT necessary in
A. diffusion. B. phagocytosis. C. active transport. D. osmosis.