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  3. 1. which of the following statements about the wor

1. Which of the following statements about the world’s population is FALSE? a. the rate of population...

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Biology

1. Which of the following statements about the world’spopulation is FALSE?

a. the rate of population growth has increased since the end ofthe twentieth century
b. urbanization is taking place in developed, developing, andnon-developed countries

c. more people live in urban areas than in rural areas

2. Scientists want to know what effects, if any, there might befrom increasing levels of UV-B radiation due to the stratosphericozone hole. In an experiment to study the effects of above-normalUV-B radiation on leopard frogs, treatment and controls included 10frogs. This provided adequate _____________ so that any differencedue to the treatment would not be due to ______________factors.

a. controls; replication
b. replication; confounding

c. controls; experimental

3. Which of the following explanations of how algal blooms causehypoxia is FALSE?

a. Growing algae mats shed dead material and these sedimentscloud the water column and coat surfaces, which prevents aquaticplants from photosynthesizing.

b. Decomposition of dead algal materials consumes the availableoxygen.

c. Growing algae mats cause fish populations to increase, andthe fish use up oxygen.

Answer & Explanation Solved by verified expert
4.0 Ratings (788 Votes)
1 The correct option is Option B urbanization is taking place in developed developing and nondeveloped countries Urbanization is taking place in developed and developing nations and only to a small extent in nondeveloped nations The other two statements are    See Answer
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