A coral egg fertilized by the sperm of another coral does not reach the larval stage. - ANS-zygote
death
A friend sends your lab a box of preserved grasshoppers collected from the rainforests of
Panama and asks you to determine how many species are represented in the group. Which of the
following methods would be useful for this task? - ANS-CORRECT
use of DNA similarity
use of the morphological species concept
INCORRECT
use of the biological species concept
A lineage of ferns has diverged three times in the past: - ANS-IN ORDER
allopatric speciation on North America
geographic Isolation from the breakup of Pangaea
Sympatric speciation on Africa
A multiyear drought occurs in the Great Plains of the United States. Which of the following traits
is likely to lead to increased reproductive fitness in a population of Great Plains bison? - ANSCORRECT
ability to eat more varied plants
hair in the nostrils that decreases evaporation from the lungs
teeth capable of more completely releasing nutrients from plants during chewing
A population of hummingbirds in the rainforests of Costa Rica is divided into several
subpopulations due to development of roads and cities. - ANS-CORRECT
2, 5
INCORRECT
1, 3 ,4
An orchid in which some of the plants have flowers that are white with yellow in the center, and
others have flowers that are all white, is pollinated exclusively by a single species of moth.
Historically, the moths have shown no preference for which color flower they visit, but more
recently each moth seems to visit only one color flower or the other. Which of the following
statements is true regarding this scenario? - ANS-TR
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