Lactated Ringer's is a(n) __________ solution because its solute concentration is equal to that of the inside of the cell.
A) colloid
B) isotonic
C) hypotonic
D) crystalloid
Ans: B) isotonic
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A fruit fly homozygous for wild-type eyes and straight wings was crossed with a fly homozygous for rosy eyes and wrinkled wings. The progeny all showed wild-type eyes and straight wings
When crossing the F1, the resulting offspring showed 3 wild-type eyes/straight wings : 1 rosy eyes/wrinkled wings. This data suggest: A. rosy eyes is dominant. B. straight wings is recessive. C. these two genes are linked. D. these two genes are sex-linked. E. these two genes are codominant.
The movement of organic compounds in phloem is
described as a. sink-to-source. b. pressure flow. c. cohesion-tension. d. active transport. e. transpiration pull.
During C4 photosynthesis:
a) plants utilize less ATP when producing sugar. b) plants are able to produce sugars only during the daytime. c) plants are able to continue producing sugars even when they must close their stomata to reduce water loss during hot days. d) plants are able to reduce water loss by producing more rubisco. e) plants are able to generate water molecules to cool their leaves.
A neutral atom must contain ________
A) an equal number of neutrons and electrons B) an equal number of protons, neutrons, and electrons C) an equal number of protons and neutrons D) an equal number of protons and electrons