What occurs within the female cone of a pine tree?

a. meiosis
b. mitosis
c. development
d. fertilization
e. all of these


Answer: e

Biology & Microbiology

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It is usually beneficial to add nitrogen when one attempts to stimulate hydrocarbon degradation in the ocean.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Topic 2.5 - Chemotrophy

What will be an ideal response?

Biology & Microbiology

When atoms gain or lose electrons, they become negatively or positively charged. These negatively or positively charged atoms are known as

A. isomers. B. unstable atoms. C. ions. D. isotopes.

Biology & Microbiology

Streptococcal pharyngitis involves all the following, except:

A. a purulent exudate over the tonsils. B. can lead to scarlet fever if it is an erythrogenic toxin-producing strain. C. can lead to serious sequelae. D. is usually caused by the viridans streptococci. E. causes redness, difficulty in swallowing, and fever.

Biology & Microbiology