Activated B cells that secrete antibodies are known as ______ cells.
Fill in the blank(s) with the appropriate word(s).
Answer: plasma
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Studies show that biodiversity maximizes resource acquisition and retention within an ecosystem.
Answer the following statement true (T) or false (F)
Which stage of the Plasmodium protozoan infects the red blood cells of humans to cause malaria?
a) Schizont b) Merozoite c) Sporozoite d) Gametocyte
Enzymes used to cut genes in recombinant DNA research are known as ____.
A. ligases B. restriction enzymes C. transcriptases D. DNA polymerases E. replicases
Why do scientists consider HIV to be an emerging virus?
A) HIV infected humans long before the 1980s, but it has now mutated to a more deadly form. B) HIV mutates rapidly making the virus very different from HIV in the early 1980s. C) HIV suddenly became apparent and widespread in the 1980s. D) HIV is now starting to cause diseases other than AIDS, such as rare types of cancers and pneumonias.