LLAS 1190 Chapter Notes - Chapter 3: Ecological Pyramid, Biome, Species Richness

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Biology: How Life Works 2e, Chapter 48 Assessment
1. Which of the following ecosystem factors would affect the rate of tree growth?
A. All of these responses would affect the growth of trees
B. The ambient light conditions, and thus photosynthetic production
C. The amount of precipitation, and thus photosynthetic production
D. The distribution of nutrients in each tree’s local environment
E. The presence of tree parasites
2. Consider the characteristics of biomes. Would you expect more biomass in a trophic pyramid from the
tropical rainforest compared to one from the taiga?
A. Yes, because there is higher productivity at the equator than at the poles.
B. Yes, because there is higher fungal diversity cycling carbon at the equator than at the poles.
C. Yes, because there are higher numbers of predators at the equator than at the poles.
D. No, because there are photosynthetic organisms in both biomes that support the trophic pyramids.
E. No, because there are other producers at the poles that don’t require sunlight so make up the difference in
biomass that would be there if only sunlight was used as an energy source.
3. Some of the characteristics used to describe biomes include:
A. annual average precipitation and average temperature plus variation.
B. average annual precipitation and number of grass species.
C. precipitation and number of trophic levels in the communities.
D. average annual temperature and species richness.
4. A/an _____ is a community of organisms and the physical environment it occupies.
A. ecosystem
B. biome
C. community
D. all of these
E. none of these
5. Tropical biomes have evolved over _____ years. However, biomes at New England latitudes have
experienced an ice age within the past _____ years.
A. tens of millions of; few thousand
B. a few million years; few million
C. a few million years; thousand
D. several thousand; few million
E. few thousand; few thousand
6. The growing season is that portion of the year when a plant can grow successfully. The growing season is
determined by:
A. mean annual temperature.
B. mean annual precipitation.
C. annual variation in nutrient availability.
D. seasonal variations in temperature and precipitation.
7. The Coriolis effect governs the:
A. direction of ocean currents.
B. magnitude of ocean currents.
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