How long does it take for a plastic grocery bag to degrade?

A. 1 year
B. 1-2 weeks
C. more than 50 years
D. 10-20 years
E. 1-2 months


Answer: D

Biology & Microbiology

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The bacterial genetic material is

A. held within a membrane-bound nucleus. B. localized to a nucleoid region. C. circular and loosely packed.

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Most protozoans exist in two forms during their life cycle. The trophozoite form is the active feeding form of the organism, while the cyst stage represents the inactive form.

A) True B) False

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Azolla filiculoides is a small aquatic fern that is typically 1-2 cm tall. How would a botanist distinguish it from a bryophyte?

A. It has xylem tissue. B. It produces seeds. C. It has chloroplasts. D. It has a gametophyte.

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A motor nerve and all the fibers that it controls is called a:

What will be an ideal response?

Biology & Microbiology