The light-sensitive pigment found in animals' eyes is called
A. carotene.
B. chlorophyll.
C. glutamate.
D. rhodopsin.
E. tyrosine.
D. rhodopsin.
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Stepping stones and corridors have what effect on prairie habitat patches, from the perspective of Fender's blue butterflies?
a. They increase the isolation of existing habitat patches. b. They increase the connectivity of existing habitat patches. c. They increase the size of existing habitat patches. d. They increase the frequency of fires within existing habitat patches.
Which evolutionary process occurs when the hybrids in a hybrid zone are as fit as either of the parental populations?
a. fusion b. blended c. stability d. equilibrium e. reinforcement
This group is one of the two main angiosperm clades. This group has about 200 000 species, and most have two cotyledons. What is the name of this plant group?
a. eudicots b. monocots c. magnoliids d. orchids
The human body must maintain a constant pH. In the blood, bicarbonate serves as a(n) ________ to help maintain the necessary pH
A) acid B) buffer C) solvent D) base