Argentine Ants are a common pest. How large can their colonies be?
a. 1-2 miles
b. 3 square miles
c. Up to 14 miles
d. More than 1,000 miles
Answer: d. More than 1,000 miles
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An individual can receive injections of an antiserum or purified antibodies derived from an immune individual
Indicate whether the statement is true or false.
One way an autoimmune disorder can arise is if
A) a person encounters an immunodeficiency virus. B) a person inhales an allergen. C) a nonself antigen coincidentally resembles a self antigen. D) too many T cells die in the thymus.
A population of worms is growing exponentially in a compost heap. Thirty days ago there were 400 worms and now there are 800 . How many worms will there be thirty days from now, assuming conditions remain constant?
What will be an ideal response?
__________ shifts the range of variation in traits in
one direction. Fill in the blank(s) with the appropriate word(s).