In a cool environment, an ectotherm is more likely to survive an extended period of food deprivation than would an equally sized endotherm because the ectotherm _____
A) maintains a higher basal metabolic rate
B) expends more energy per kilogram of body mass than does the endotherm
C) invests little energy in temperature regulation
D) has greater insulation on its body surface
C
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The arrangement of organisms into groups is best described as ________.
A. identification B. taxonomy C. classification D. systematics
Which sequence most accurately describes the
complete path of blood through the circulatory system of a fish? a. atrium >>> ventricle >>> gill capillaries >>> atrium >>> ventricle >>> all other capillaries b. atrium >>> ventricle >>> gill capillaries c. gill capillaries >>> atrium >>> ventricle >>> all other capillaries d. gill capillaries >>> all other capillaries >>> atrium >>> ventricle e. none of these
An endergonic reaction can proceed only if it absorbs:a
more free energy than is released by a coupled exergonic reaction. b. less free energy than was released by a coupled endergonic reaction. c. less free energy than is released by a coupled exergonic reaction. d. the same amount of free energy that is absorbed by the enzymatic breakdown of proteins. e. energy from ADP, forming ATP
Which of the following types of microbe was NOT observed by Leeuwenhoek?
A) fungus B) protozoan C) prokaryote D) alga E) virus