Which organisms have been used in genetic research for a hundred years?

a. Mice
b. Fruit flies
c. Corn
d. Pea
e. Chickens


b

Biology & Microbiology

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Exoskeletons are most characteristic of

a. Mollusca b. Arthropoda c. Nematoda d. Chordata e. Annelida

Biology & Microbiology

A pine tree is

a. an angiosperm. b. a haploid plant body. c. a sporophyte. d. the dependent stage in the conifer life cycle. e. all of these.

Biology & Microbiology

What enzyme phosphorylates MAP kinase kinase?

A. MAP kinase kinase kinase B. MAP kinase kinase C. MAP kinase D. MAP phosphatase

Biology & Microbiology

How does ADH help to prevent dehydration?

What will be an ideal response?

Biology & Microbiology