Which Statement Characterizes Differences Between Lakes and Rivers Related to Water

question 69

Multiple Choice

Which statement characterizes differences between lakes and rivers related to water pollution? 

• A) Acid deposition and fallout represent more serious hazards to lakes than rivers. 
• B) Eutrophication is a natural increase of water pH. 
• C) Rivers are more vulnerable than lakes to contamination by plant nutrients, oil, toxins, and pesticides. 
• D) Natural processes are the main cause for cultural eutrophication in rivers but not in lakes.

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Definitions:

Phenotypes

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Nonrandom Mating

A mating pattern in which individuals do not mate by chance, but rather according to their genotypes or phenotypes.

Inbreeding

The mating of closely related individuals, leading to an increase in the probability of offspring inheriting genetic disorders and reduced genetic diversity.

Hardy-Weinberg Equilibrium

A principle stating that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences.