Which organism would you expect to find preserved as a fossil?
a. a jellyfish
b. a shelled arthropod
c. an earthworm
d. a nematode
e. a protistan such as an amoeba
b
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The observable expression of the genes present is called
A. genotype B. karyotype C. epistasis D. phenotype
Describe how a nonpolar steroid hormone receptor is different from a cell-surface receptor
What will be an ideal response?
Bacteria may survive phagocytosis by
A. preventing fusion of the lysosome with the phagosome. B. lysing the phagosome. C. producing comet tails. D. preventing fusion of two phagosomes. E. preventing fusion of the lysosome with the phagosome AND lysing the phagosome.
Parental care of offspring:a
for many animals has a lower cost than benefit. b. results in a decreased probability that each offspring will survive. c. is more common in species in which the female produces two or more times during a breeding season. d. is more common among male animals than among females. e. is more common among male fishes than among females.