Females who start smoking as teenagers are ________% more likely to develop breast cancer

a. 35
b. 70
c. 20
d. 100
e. 55


b

Biology & Microbiology

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The enzyme associated with the influenza virus that hydrolyzes the protective mucous coating of the respiratory tract is

A. neuraminidase. B. kinase. C. reverse transcriptase. D. catalase. E. hyaluronidase.

Biology & Microbiology

Birds excrete their nitrogenous wastes in the form of

A) uric acid. B) ammonia. C) amine groups. D) urea. E) amino acids.

Biology & Microbiology

Since O2/H2O is the most electropositive couple, ________ energy is available from ________ than from ________

a. more / fermentation / aerobic respiration b. more / aerobic respiration / anaerobic respiration c. less / anaerobic respiration / aerobic respiration d. less / aerobic respiration / fermentation

Biology & Microbiology

An increase in generation time with increasing body size is least likely in ____

a. bacteria b. plants c. animals d. protists e. fungi

Biology & Microbiology