A species colonizes an island, goes through a phase of exponential growth, and reaches the carrying capacity of the island. At what stage is the growth rate slowest? 

A. initial colonization
B. exponential phase
C. approaching K
D. after reaching K


D. after reaching K

Biology & Microbiology

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In which of the following steps of transcription is the C-terminal domain of RNA polymerase II first phosphorylated?

A. assembly of the preinitiation complex B. initiation C. elongation D. termination complex formation E. after termination

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All organisms are alike in their

a. requirements for energy. b. participation in one or more nutrient cycles. c. ultimate dependence on the sun. d. interaction with other forms of life. e. all of these.

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Buford is a very successful high school athlete who has been diagnosed with diabetes. He needs to do well in sports so that he can receive a university scholarship

He dreams of getting into the pros, too — his whole family is counting on him! However, he doesn't want to go through the entire regimen his doctor has prescribed for him because he thinks it cuts into his sports time. What do you need to tell him about sticking to his diabetic treatment plan?

Biology & Microbiology

Treatment and control of anthrax includes

A. use of antimicrobics such as ciprofloxacin for active cases. B. vaccination of livestock. C. toxoid for military and those with occupational exposure. D. proper disposal of animals that have died from anthrax. E. All of the choices are correct.

Biology & Microbiology