What is the estimated annual value of ecosystem services?
A) $1 billion
B) $33 trillion
C) $33 billion
D) $1 trillion
B
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In which organ do we classify the food as chyme?
a. large intestine b. liver c. mouth d. small intestine e. stomach
Which cells produce specific antibodies?
A. B cells B. macrophages C. plasma cells D. T cells E. monocytes
An antigen that promotes an immune response that is greater than necessary is called a(n)
A. antibody. B. mast cell. C. allergen. D. MHC.
If wire hair (W) is dominant to smooth hair (w), and you find a wire-haired puppy, which type of puppy would you use in a testcross to determine its genotype?
A. Heterozygous wire-haired puppy B. Homozygous wire-haired puppy C. Heterozygous smooth-haired puppy D. Any smooth-haired puppy E. True-breeding wire-haired puppy