In which of the following types of organisms would you expect to find a contractile vacuole?

a. sea coral
b. lymphocyte
c. amoeba
d. planaria


c. amoeba

Biology & Microbiology

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For a gene with two alternative alleles, A (with a frequency of p) and B (with a frequency of q), the term in the algebraic form of the Hardy-Weinberg equilibrium for the heterozygote genotype frequency is  

A.  p2. B.  q2. C.  2pq. D.  (p+q)2. E.  2Aa.

Biology & Microbiology

Family, twin, and adoption studies have revealed a(n) _____________________ component to mental illnesses, such

as bipolar disorder. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Placental mammals that are predacious meat eaters with large and conical-shaped canines are

A. chiroptera. B. proboscidea. C. cetaceans. D. carnivores.

Biology & Microbiology

Which term refers to media that contain water, organic carbon sources, and salts, but no extra nutritional components?

a. nutritious media b. complete media c. minimal media d. agar media

Biology & Microbiology