Which statement about chlorofluorocarbons is FALSE?
A. They can destroy ozone.
B. They are odorless.
C. They are a greenhouse gas.
D. They break down very slowly.
E. Their action is allowing more UV radiation through the atmosphere.
Answer: C
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In what ways can biologists contribute to the challenges faced by humanity in the 21st century?
A. All of the answer options are correct. B. They can develop crops that yield more food in the face of changing environmental conditions. C. They can make predictions about how global change will impact species and communities. D. They can work with lawmakers to ensure that government policies are environmentally sound. E. They can develop new methods to fight diseases.
When the immune systems no longer distinguishes between self and nonself, _____ can result
a. autoimmunity b. anaphylaxis c. viral infections d. minor allergic reactions e. enhanced immune response
The water-hating hydrophobic tails of the phospholipid bilayer face the outside of the cell membrane
Indicate whether the statement is true or false.
How would the body regulate its normal body temperature in cold weather?
What will be an ideal response?