The function of chelicerae is similar to that of the __________ in crabs and lobsters
a. reproductive organs.
b. antenna.
c. mouthparts.
d. claws.
C
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The fossil record is incomplete because
a. very few organisms were preserved as fossils. b. organisms tend to decay before becoming a fossil. c. animals with hard parts are preserved more easily. d. geological processes may destroy fossils. e. all of these
Refer to Figure 26-3. At point 4, several Chlamydomonas cells are “packaged” in a surrounding membrane. Which of the following statements concerning those cells is FALSE?
a. They are gametes.
b. They were produced by mitosis.
c. They are part of the negative (?) strain.
d. They are part of the haploid generation.
e. They can also be considered zoospores
Which of the following functions to isolate particular chemical activities from the rest of the cell?
A. ribosomes B. peroxisomes C. chloroplasts D. nucleus E. Golgi complex
In humans, eye color is determined by the amount of melanin in the iris of the eye and is probably controlled by several genes. The inheritance of eye color is an example of
A. multiple alleles. B. pleiotropy. C. polygenic inheritance. D. gene imprinting.