Based on the evolutionary tree, which letter represents the common ancestor of animals and
fungi?
a. A
b. B
c. C
d. D
D
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Select the appropriate order of hormone action
a. transduction, reception, response b. reception, response, transduction c. transduction, response, reception d. reception, transduction, response e. reception, translation, response
The species-area effect for island habits is greater than that for contiguous habitats because
a. colonization rates are higher and extinction rates are lower in contiguous habitats than islands b. extinction rates are higher in contiguous habitats c. all islands have low species richness d. large islands have lower species richness than contiguous habitats Chapter 53 - Population Interactions and Community Ecology Cengage Learning Testing, Powered by Cognero Page 20 e. immigration cannot be measured in contiguous habitats
Cnidarians all share the ability to
A. fly. B. live on land. C. sting predators and prey. D. photosynthesize. E. secrete enzymes to digest food.
The diagram shows the rate of diffusion into a cell using carrier proteins. 
McGraw-Hill EducationThe rate of diffusion will increase as
A. pH rises. B. the number of glucose molecules decreases. C. temperature decreases. D. the number of glucose molecules increases.