Which of the following is a true statement about body size and physiology?
A) The amount of food and oxygen an animal requires and the amount of heat and waste it produces are inversely proportional to its mass.
B) The rate at which an animal uses nutrients and produces waste products is independent of its volume.
C) Small and large animals face different physiological challenges because an animal's body mass increases cubically while its surface area increases as a squared function.
D) The wastes produced by an animal double as its volume doubles and triple as its surface area triples.
C
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New alleles arise by _____
a. crossing over b. mutation c. independent assortment d. sexual reproduction e. asexual reproduction
The light level at which the rate of carbon uptake in photosynthesis equals the rate of carbon loss in respiration is the light ________ point
Fill in the blank(s) with correct word
Many new species of desert lizards have arisen from a nonnative population which was introduced into
the American southwest. This example best describes:a. the effects of climatic change. b. sympatric speciation. c. adaptive radiation. d. microevolution. e. allopatric speciation
What are the key characteristics of arthropods?
A. Fused bodies, no exoskeleton, and jointed appendages B. Segmented bodies, tough exoskeleton, and jointed appendages C. Segmented bodies, no exoskeleton, and jointed appendages D. Fused bodies, tough exoskeleton, and jointed appendages