Evolution of a new species occurs
A. in sexually-reproducing organisms.
B. in asexually-reproducing organisms.
C. typically over long periods of time.
D. All answers are correct.
E. allopatrically and sympatrically.
D. All answers are correct.
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Which organ system(s) play role(s) in eliminating metabolic wastes from the body?
a. excretory system only b. respiratory system only c. nervous system only d. excretory and respiratory system e. excretory, respiratory, and circulatory system
The vampire squid was placed in the order Vampyromorpha on account of:
a. it has ten arms, but looks like an octopus. b. it appears to drift rather than actively swim. c. it has tentacles that can be coiled up. d. all the above
The surface area of all the alveoli in the lungs is
equivalent to the surface of a regulation __________ court. a. tennis b. basketball c. racquetball d. jai lai e. all of these combined
What does a branch point in a phylogenetic tree represent?
What will be an ideal response?