What is the estimated annual value of ecosystem services?

A) $1 billion
B) $33 trillion
C) $33 billion
D) $1 trillion


B

Biology & Microbiology

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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

Biology & Microbiology

Which cells produce specific antibodies?  

A.  B cells B.  macrophages C.  plasma cells D.  T cells E.  monocytes

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology