The longest wavelength of visible sunlight is:

a. Blue
b. Violet
c. Red
d. Yellow


Answer: c. Red

Biology & Microbiology

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A species that plays a critical role in maintaining the structure of an ecological community and helps to determine the types and numbers of various other species in the community is known as  

A.  a predator. B.  a keystone species. C.  the primary species. D.  the dominant species. E.  the alpha species.

Biology & Microbiology

Which is a component of the fossil record?

A. bones of dinosaurs B. the distribution of murid rodents in Australia and Asia C. information about geological formations

Biology & Microbiology

The size of a population is affected by all of the

following EXCEPT a. biotic potential. b. trophic level. c. carrying capacity of the environment. d. death rate. e. birth rate.

Biology & Microbiology

When naming a life form, which of the following two taxonomic categories is used?

A) class and order B) family and genus C) genus and species D) kingdom and phylum E) domain and phylum

Biology & Microbiology