Which of the following is true of antibodies?

A) An organism is born with its full complement of antibodies.
B) A new antibody can appear whenever one is needed.
C) The ability to produce new antibodies is determined by an organism's genetic blueprint.
D) None of the above is correct.


C

Environmental & Atmospheric Sciences

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Which of the following is a principle to interpret relative ages?

a) The youngest rock is on the bottom b) a geologic feature is older than any rock or feature it crosscuts c) a younger rock can include pieces of an older rock d) an older magma can bake or metamorphose younger rocks

Environmental & Atmospheric Sciences

Using the rule of 70, a population growth rate of 2% annually will result in doubling a population in 35 years.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Which of the following is the most toxic nerve agent?

a. Soman b. VX c. Sarin d. Tabun

Environmental & Atmospheric Sciences

A rock with both igneous and high-grade metamorphic characteristics is a(n) ____________________. Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences