Oceanography is the study of:
a. the living organisms that inhabit the sea.
b. the oceans and their phenomena.
c. the oceans and living organisms.
d. the chemical makeup of the oceans.
e. the interactions of marine organisms with their environment.
B
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A(n) ____ is created as ions diffuse across membranes
a. chemical gradient b. electrochemical gradient c. negative gradient d. electrical gradient e. concentration gradient
When two species contain identical or nearly identical molecules such as proteins, this suggests
A) genetic modification has occurred to the populations. B) the two species share a common ancestry. C) the two species are in fact only one species displaying divergent evolution. D) the two species are in fact only one species displaying convergent evolution. E) the two species overlap in niches and likely share a common diet.
All of the following events can trigger an adaptive radiation EXCEPT _____
A) an unusual event splitting a habitat, such as a severe hurricane B) the evolution of a new morphological feature C) the extinction of competitors D) Hox gene duplication events
A fungal infection damages all peristomes, preventing them from performing their function. Which process will be directly hindered as a result?
A) growth of the sporophyte B) ability of sperm to locate eggs C) growth of the protonema D) lengthening of rhizoids E) broadcast of spores