Acidic solutions have a pH that is

a. less than 7
b. between 7 and 14
c. more than 7


Ans: a. less than 7

Biology & Microbiology

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When blood returns from the pulmonary circuit, it first enters which chamber of the heart?

a. left atrium b. left ventricle c. right atrium d. right ventricle e. both the left atrium and the right atrium

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Hamilton explained the origin of altruism in selected insect societies with his kin selection model of sex determination. Since males are haploid and females are diploid, the workers share a very high proportion of alleles, theoretically as high as 75%. What is this called? 

A. diploidy B. haploidy C. haplodiploidy D. parthenogenesis E. altruism

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Which condition is LEAST correlated with a decrease in atmospheric ozone?

a. more serious sunburns b. loss of ocean phytoplankton c. increased incidence of skin cancers d. decreased levels of atmospheric carbon dioxide e. increased occurrences of cataracts

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Typical glycosylation cannot occur in a bacteria cell because

a. they do not have an inclusion body b. they do not have a Golgi Apparatus c. they do not have ribosome d. they do not have a mitochondria

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