A(n) ________ is any heritable behavioral, morphological, or physiological trait of an organism that has evolved over a period of time by the process of natural selection
Fill in the blank(s) with correct word
adaptation
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Both pocket mice and peppered moths are exposed to selection pressure caused by ________
a. industrial pollution b. predators c. temperature changes in their habitats d. vegetative disruptions caused by introduced plant species
Molluscs with a tubular shell and sheath foot are:
a. scaphopods. b. gastropods. c. bivalves. d. cephalopods. e. nudibranchs.
Hepatic encephalopathy is a condition in which:
A) liver disease causes reduced brain function. B) the liver is acutely inflamed from a virus. C) acute hypoglycemia results from liver failure. D) alcohol progressively destroys the liver tissue.
Which of the following is true?
a. Major eukaryotic groups contain either only multicellular or unicellular species. b. Eukaryotes became multicellular upon endosymbiosis with bacteria. c. Multicellularity has evolved many times in eukaryotes. d. Multicellularity is always advantageous for the individual.