You discover a new species of ape that looks like a gorilla but walks upright. How would you change the phylogeny above?
A. no change, because only molecular data
are considered when studying evolutionary
relationships
B. no change until a fossil of the new species
is found because fossil evidence is a required
component of the data set
C. I would group gorillas with humans based
on the synapomorphy (shared trait) of upright
walking.
D. I would branch the gorilla lineage and add
the new species with the defining trait "upright
stance".
D
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The control in an experiment
a. makes the experiment valid. b. is an additional replicate for statistical purposes. c. reduces the experimental errors. d. minimizes experimental inaccuracy. e. allows a mixed group of comparisons among different organisms for the experimental group.
All of the red squirrels living on a college campus would be a(n)
A) genus. B) family. C) population. D) ecosystem. E) community.
What color of light is not strongly absorbed by chlorophyll?
A. red B. violet-blue C. green D. yellow-orange
The relative number of reproductively viable offspring produced by individuals is called ________
A) immigration B) homology C) taxonomy D) fitness