most major enzymatic digestion of food materials takes place where in the digestive system?
What will be an ideal response?
small intestines
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What is often true of the fruits eaten by birds and mammals?
A. defensive mutualism. B. monophagy. C. high number of parasites. D. attractive colors. E. amensalism.
Gribbles play an important role in kelp communities
a. by weakening holdfasts enabling kelps to be replaced. b. by strengthening holdfasts enabling kelps to remain attached. c. by randomly disturbing the environment. d. by providing substrate for kelp undercover species. e. by acting as keystone predators.
A strap of dense connective tissue that connects muscle to bone is (a)
a. ligament. b. cartilage. c. myofibril. d. tendon. e. filament.
Which of the following diseases has been all but eliminated from the United States because of wastewater treatment plants?
A- West Nile virus B- malaria C- cholera D- lyme disease E- yellow fever