Within this community, which would be the fittest organisms?
a. The weeds with herbicide resistance because they survive when herbicides are sprayed.
b. The weeds without herbicide resistance because they are producing the most surviving
offspring.
c. Any organism that reproduces is considered fit in the evolutionary sense.
d. If herbicide resistance arose due to a mutation, this species would be considered less fit
B
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The ____ are most sensitive to changes in CO2
a. aortic bodies b. carotid bodies c. receptors of the medulla d. receptors of the aorta e. medulla bodies
Based on the data in the figure, a likely reason for speciation between these two sympatric species of
frogs is:
a. allopolyploidy.
b. mechanical isolation.
c. habitat isolation.
d. temporal isolation.
e. hybrid inviability.
The lineage that first separated from the common ancestor of all animals, and retains many of the same primitive features to this day, includes which of the following modern organisms?
a. The grasshopper b. The sea turtle c. The jellyfish d. The sponge e. The earthworm
The Whittaker classification is based upon all of the following EXCEPT
A. type of cell B. level of organization C. type of nutrition D. habitat