Replace dead or damaged muscle cells Question 4
1 pts
Organisms must respond to changes in their environment in order to survive. Which of the
following is an example of a physical response to an environmental change?
O a bear hibérnating in winter
O a bird migrating when the season changes
a dolphin performing tricks for food at an aquarium
O a plant turning so that its leaves face the sunlight
Question 5
1 pts
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Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.