Seed plants are _____

a. flowering plants d. spermatophytes
b. conifers e. tracheophytes
c. gymnosperms


D

Biology & Microbiology

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Metamerism is:

A. the division of the body into segments B. the fusion of body parts C. shedding of the skin D. formation of the germ layers in early development E. the first cellular division following fertilization

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Near the ground, where ozone levels are naturally low, ozone is considered:

a. a neutral gas b. a normal component of air c. a pollutant d. on its way to the ozone layer e. beneficial for blocking UV radiation

Biology & Microbiology

Some protists have complex life cycles and change between the haploid and diploid state. This process

is called __________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Bacteria use restriction enzymes to ____.

A. integrate viral DNA B. destroy viral DNA C. prevent mutation of their DNA D. copy their genes E. inhibit the expression of some of their genes

Biology & Microbiology