Taste buds detect
a. light.
b. atmospheric sound waves.
c. chemicals in food and drink.
d. movements of the head.
b
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All of the following are filter feeding dwellers of coral reefs except:
a. Christmas tree worms. b. sponges. c. giant clam. d. cone snails. e. tunicates.
Phosphate is introduced to ecosystems via:a
fertilizers. b. laundry detergents. c. dish detergents. d. all of these. e. none of these.
One of the conclusions drawn from Darwin's theory of evolution is that:a
existing organisms can adapt to environmental changes b. living organisms are composed of basic units called cells c. living organisms contain substances produced by cells d. genetic information can pass from organism to organism by means of DNA e. organisms living today descended with modifications from previously existing forms
Breeders can increase the genetic variation in a population by introducing...
a) inbreeding b) selective breeding c) mutations d) hybridization