What biogeochemical cycles have been heavily affected by human activities? Check all that apply.

_____ the water cycle
_____ the phosphorus cycle
_____ the nitrogen cycle
_____ the carbon cycle


__X__ the water cycle
__X__ the phosphorus cycle
__X__ the nitrogen cycle
__X__ the carbon cycle

Biology & Microbiology

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Which of the following would NOT strongly

associated with the word "acid"?

a. excess hydrogen ions b. magnesium hydroxide c. contents of the stomach d. HCl e. pH less than 7

Biology & Microbiology

The diversity of an animal community is unrelated to the physical structure of a plant community

Indicate whether the statement is true or false

Biology & Microbiology

Which animals have had the bovine growth hormone injected into them in order to produce larger individuals?

a. All of the answer choices are correct. b. cows c. fish d. pigs e. sheep

Biology & Microbiology

Which of the following kinds of receptor consists only of a naked nerve fiber ending?

A. Pacinian corpuscle B. cochlear hair cell C. cone D. Meissner's corpuscle E. nociceptor

Biology & Microbiology