The water balance problem of plants living in salty soil is the result of:

a. water moving out of plant roots by osmosis.
b. extensive leaching.
c. a low soil pH.
d. low concentrations of micronutrients.
e. excessive run off.


a

Biology & Microbiology

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When a species lives in suitable habitats throughout a geographical area they have

1.disjunct distributions. 2.continuous distributions. 3.a dispersal. 4.a vicariance. 5.None of the options is correct.

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AUG is the "start" codon in

A) prokaryotic translation. B) eukaryotic translation. C) both prokaryotic and eukaryotic translation. D) neither prokaryotic nor eukaryotic translation. E) prokaryotic modification.

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Unlike most bony fishes, sharks maintain body fluids that are isoosmotic to seawater, so they are considered by many to be osmoconformers. Nonetheless, these sharks osmoregulate at least partially by _____

A) using their gills and kidneys to rid themselves of sea salts B) monitoring dehydration at the cellular level with special gated aquaporins C) tolerating high urea concentrations that are balanced with internal salt concentrations to seawater osmolarity D) synthesizing trimethylamine oxide, a chemical that binds and precipitates salts inside cells

Biology & Microbiology

which hormone suppresses spermatogenesis without affecting testosterone secretion

What will be an ideal response?

Biology & Microbiology