Solar radiation in December is greatest at

A) the equator.
B) the Tropic of Cancer.
C) 90° in the Southern Hemisphere.
D) 90° in the Northern Hemisphere.


C

Biology & Microbiology

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During swallowing, the _____ covers the entrance to the larynx. This structure is identified and labeled as letter _____

in the above diagram.

a. epiglottis; E b. pharynx; B c. glottis; C d. epiglottis; C e. trachea; E

Biology & Microbiology

If nest-decorating with aromatic greenery has

adaptive value, then a. “A” represents nests that are sprig-free. b. nests in “B” had sprigs removed every seven days. c. the height of column “A” will not change after the nestlings depart. d. the height of column “B” will increase after the nestlings depart. e. all of these are true.

Biology & Microbiology

Sharks that are ____ incubate their eggs within the mother’s body

a. oviparous b. viviparous c. ovoviviparous d. placental e. eutherial

Biology & Microbiology

In ________, ribosomes can attach to the mRNA and begin translation even though transcription has not been completed.

A. fungi B. eukaryotes C. protozoa and some plants D. bacteria

Biology & Microbiology