What is not one of the top three environmental factors leading to disease in low- and middle-income countries?

A. Urban air pollution
B. Unhealthy urban lifestyle
C. Unsafe water, hygiene, and excreta disposal
D. Indoor air pollution


Answer: B. Unhealthy urban lifestyle

Biology & Microbiology

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What would be the frequency of pink flowers in a population where the allele frequency of CR is 0.4 and the population is in Hardy-Weinberg equilibrium? Assume that CR CR is red, CRCW is pink, and CwCw is white.

A. 0.04 or 4% B. 0.16 or 16% C. 0.2 or 20% D. 0.8 or 80% E. 0.48 or 48%

Biology & Microbiology

The bittern in the above figure is using ____ for protection

a. mimicry b. display behavior c. warning coloration d. chemical defenses e. camouflage

Biology & Microbiology

An ecologist who focuses on the individual could study all of the following, except

A) morphology. B) physiology. C) behavior. D) death rate.

Biology & Microbiology

Quantitative inheritance involves the interaction of a number of gene loci. The pattern of genetic transmission typical of quantitative inheritance is ________

A) continuous variation of phenotypic expression B) usually a pattern that clearly reflects dominance and recessiveness C) discontinuous distributions such as 3:1 D) typical of Mendelian inheritance E) a 9:3:3:1 ratio

Biology & Microbiology