What is the purpose of the intestinal villi and microvilli?
a. increase surface for maximum absorption
b. increase surface area for maximum infiltration of capillary beds
c. decrease area for bacterial growth
d. increase area for bacterial growth
e. increase the area for the serosa
A
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Oceanic trenches form primarily where one crustal plate sinks below another
Indicate whether the statement is true or false.
Which is the study of past and present distributions of organisms on Earth?
a. biogeography b. biological ecology c. distribution biology d. geographical ecology
e. organismal geographyWhich is the correct sequence of events during aerobic respiration?
A electron transport chain, Kreb's cycle, glycolysis B glycolysis, Kreb's cycle, electron transport chain C Calvin cycle, electron transport chain, Kreb's cycle D electron transport chain, Kreb's cycle, glycolysis
A mammal is and has a body temperature .
A. ectothermic; that changes with fluctuation in environmental temperature B. endothermic; that changes with fluctuation in environmental temperature C. ectothermic; maintained by its own metabolism D. endothermic; maintained by its own metabolism E. None of the answer choices is correct.