Serological methods
A.
are useful in identifying bacteria.
B. rely on the specificity of an antibody-antigen interaction.
C. may be simple and rapid.
D. All of the choices are correct.
D
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Almost as much evidence exists to support the hypothesis of transformation as the theory of common descent
Indicate whether the statement is true or false
You notice that some squirrels in your neighborhood have a much darker coat color than most of the other squirrels. Is this darker color an adaptation?
A) Yes, all variations are adaptations. B) No, adaptations are traits developed when they're needed to help an organism survive. C) You can't know unless you can know the coat color of the dark squirrel's parents. D) The trait is only an adaptation if it gives the squirrels an advantage in their habitat.
The blood flow slows down in the capillaries because the increased total area of the capillary is very large.
a. true b. false
Depletion of the helper T cell population by HIV results in the development of AIDS.
Answer the following statement true (T) or false (F)