The ozone in the atmosphere can be damaged by which of the following?
A) carbon dioxide B) chlorine C) oxygen D) methane
Answer: B
Biology & Microbiology
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When selection increases one feature of an organism at the expense of another, we speak of an evolutionary ________
Fill in the blank(s) with correct word
Biology & Microbiology
As DDT accumulates in the tissues of carnivores at increasing trophic levels, the concentration increases; this is representative of ________
Fill in the blank(s) with correct word
Biology & Microbiology
What is the function of the lacY gene in the lac operon?
What will be an ideal response?
Biology & Microbiology
Mrs. Hinson was informed that her blood pressure was 150/95. These numbers indicate that she has ________.
A. hypotension B. stage 2 hypertension C. normal blood pressure D. prehypertension E. stage 1 hypertension
Biology & Microbiology