Land Title: Environmental Science: Systems and Solutions, Fourth Edition Authors: Michael I. McKinney, Robert M. Schoch, Logan Yonavjak
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Practice Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results.

1:  What are two major factors that determine the type of terrestrial biome?
A: temperature and soil type
B: temperature and moisture
C: moisture and soil type
D: temperature and sunlight

2:  Which of the following is true about aquatic biomes?
A: Existence in water is more harsh than on land due to large temperature fluctuations.
B: As in land biomes, aquatic communities divide into distinct biomes.
C: Most of the earth's water contains little life.
D: Marine biomes are more easily polluted than fresh water biomes.

3:  Which of the following statements is true?
A: Genes are the source of individual variation.
B: Mutations are always harmful.
C: Darwin incorporated Mendel's genetics into his theory of natural selection.
D: Humans possess no more than 10,000 genes.

4:  Which of the following statements about species diversity is true?
A: Species diversity was greater during the age of dinosaurs than today.
B: Today we are experiencing a decrease in species diversity.
C: Species diversity decreased when oxygen levels on earth became too high.
D: The development of eukaryotic organisms signaled the beginning of a mass extinction.

5:  Which of the following is true?
A: More than half of all known living species on earth are insects.
B: More species live in the ocean than on land.
C: There was more biodiversity during the age of dinosaurs than today.
D: More than 50 percent of species ever on earth are alive today.

6:  According to Figure 4-8 above what latitude and altitude do we encounter tundra?
A: Above about 78 degrees latitude, 17,000 feet elevation
B: Above 75 degrees latitude, 15,000 feet elevation
C: Above about 68 degrees latitude, 12,000 feet elevation
D: Above 58 degrees latitude, 3,600 meters elevation

7:  Which geological period did not see a mass extinction?
A: Silurian
B: Devonian
C: Triassic
D: Cambrian

8:  In what biome are you most likely to find xerophytes?
A: Boreal
B: Temperate Grassland
C: Desert
D: Tropical scub forest

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Link: Jones and Bartlett Publishers