__________ is rapid diversification into new species that occupy novel niches.
Fill in the blank(s) with the appropriate word(s).
Adaptive radiation
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Prokaryotes that harvest both energy and carbon atoms from organic molecules are called
A. photoautotrophs. B. chemolithoautotrophs. C. photoheterotrophs. D. chemoheterotrophs. E. nitrogen fixers.
Suppose that the osmotic response element is in a promoter joined to the coding region of luciferase,
and this composite gene is in cultured renal medulla cells. The cells should glow when they are placed in a medium that is ____ to the cells.
a. hyperosmotic b. hypoosmotic c. hypoosmotic or isoosmotic d. isotoosmotic e. hyperosmotic or isotoosmotic
The intestinal parasite Ascaris lumbricoides currently infects more than one billion people. Which group is it in?
a. flatworms b. roundworms c. annelids d. cnidarians e. arthropods
In retroviruses, DNA is synthesized from an RNA template using which enzyme?
What will be an ideal response?