Sitting in the sun on a hot day, a dog starts to pant and finally gets up and moves into the
shade. These activities help the dog maintain a constant body temperature; thus, this is an
example of what process found in all living organism?
a. energy acquisition
b. reproduction
c. homeostasis
d. evolution
C
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Which of the following virulence factors used by Staphylococcus puts holes in host cells?
A. Protein A B. Alpha toxin C. Leukocidin D. Clumping factor
A goat eats by pulling a plant out of the ground. What does this best illustrate?
a. parasitism b. predation c. competition d. commensalism e. mutualism
Cross-breeding produced featherless chickens for
which of the following purposes? a. to make it easier to process after slaughter b. to prevent a feather infecting disease c. to be more resistant to high temperatures in the desert d. to improve breeding efficiency e. to do all of these
In fragile X syndrome, the fragile X gene contains the nucleotide triplet CGG that repeats 200-1000
times. Indicate whether the statement is true or false.