Which statement about abiotic factors in aquatic biomes is true?
a. Movement affects the availability of nutrients in both rivers and oceans.
b. The numerous photosynthetic organisms in abyssal zones require sunlight.
c. Chemosynthetic bacteria are found primarily in brackish water.
d. Dissolved solids are found in oceans but not rivers.
a. Movement affects the availability of nutrients in both rivers and oceans.
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Four of the following might be a response to rising body temperature. Which one is the exception?
a. increased rate of breathing b. decreased secretion of certain hormones c. more sweat d. reduced blood flow to skin e. increased rate of breathing
Some sea stars can reproduce asexually by _________
Fill in the blank(s) with the appropriate word(s).
Which evolutionary process describes the movement of members of a species from one population to another?
A) natural selection B) migration C) mutation D) random genetic drift E) population genetics
On a diet consisting of nothing but protein, which of the following is the most likely outcome?
(a) loss of weight because amino acids cannot be used for the synthesis of fat (b) muscle gain because the amino acids will go directly into building muscle (c) tiredness because amino acids cannot be used to generate energy (d) excretion of more nitrogenous (ammonia-derived) wastes than with a more balanced diet