What is the name of the frigid ecosystem bordering the North Pole?

A. prairies
B. taiga
C. coniferous forests
D. temperate forests
E. tundra


Answer: E

Biology & Microbiology

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3) There were numerous cases throughout the United States of patients having bloody diarrhea all within a week of each other, many of which were hospitalized with severe cases. Although the people spanned from California to New York, they all had attended a high school graduation party. Epidemiologists determined the common food factor was cheese curds homemade by a farmer. The home where the cheese curds were made was searched, and the cheese curds and milk used to produce them were taken to the local government lab. Among other microbes, Campylobacter jejuni was isolated from many of the cheese curds as well as the farmer's bulk tank milk. What should be done for those infected? What can be done to prevent this from happening again?

What will be an ideal response?

Biology & Microbiology

Proteins contain twenty different subunits ____

a. that are the carriers of genetic information b. arranged in a double helix attached to DNA c. including thymine, cytosine, guanine, and adenine d. in the form of nucleotides e. in the form of amino acids

Biology & Microbiology

A mutualistic symbiosis where fungal hyphae penetrate plant root cells is called a(n) ____

a. ectomycorrhiza b. lichen c. arbuscule d. endomycorrhiza e. haustorium

Biology & Microbiology

When you feel threatened, the

neurotransmitter, ___, is released from ___ neurons and your response is to fight or flee.

a. acetylcholine--sympathetic b. acetylcholine--parasympathetic c. norepinephrine--sympathetic d. serotonin--sympathetic e. serotonin--parasympathetic

Biology & Microbiology