BSC 1011 Chapter 39 Lecture Presentation

The major reason the Earth experiences different seasons is? a. The tilt of the Earth on its axis. b. The differing distances between the Earth and Sun different times of the year. c. The different air and water currents on Earth. d. The influence of the moon revolving around the Earth.

a. The tilt of the Earth on its axis.

Which two factors make the largest contribution to climate? a. Sunlight and temperature. b. Moisture and temperature. c. Oxygen availability and sunlight. d. Nutrient levels and temperature. e. Nutrient levels and moisture.

b. Moisture and temperature.

Which of the following is the largest biome? a. Temperate grasslands. b. Temperate deciduous forest. c. Ocean. d. Freshwater. e. Taiga.

c. Ocean.

Which of the following factors is the major determinant for an area to be a desert? a. Hot temperatures. b. Sparse plant cover. c. Sandy soil. d. Less than 10 inches rainfall/year.

d. Less than 10 inches rainfall/year.

Which biome is not matched with the abiotic factor that limits which species can survive there? a. Taiga—low temperature. b. Temperate grassland—drought and fire. c. Desert—lack of moisture. d. Tundra—frozen soil. e. All of the above are matched correctly.

e. All of the above are matched correctly.

Which zone(s) of a lake is/are part of the photic zone? a. Benthic zone.. b. Profundal zone. c. Limnetic zone. d. Littoral zone e. Both limnetic and littoral. f. Both benthic and profundal.

e. Both limnetic and littoral.