BIOL 121 Chapter Notes - Chapter 54: Hubbard Brook Experimental Forest, Pearson Education, Soil Organic Matter

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BIOL 121 Full Course Notes

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Figure 54. 1: how are the components in figure 54. 1 linked by the flow of energy, when primary producers expend energy to build new tissue, this is ________, net primary productivity, the amount of energy available to consumers. 1: maintenance costs, both a and b, both b and c, which of the following consume other living organisms, primary producers, herbivores, carnivores, decomposers, both b and c. 2,640,000 kcal/m2, what is the overall gross photosynthetic efficiency: 0. 01, 0. 1, 1, 100, plants never use 100% of the incoming solar radiation for photosynthesis on a yearly basis. What is a reasonable explanation for this: plants cannot photosynthesize during winter (in cold winter climates), plants cannot photosynthesize during dry periods. 5: the pigments that drive photosynthesis respond to only a fraction of the wavelengths available, both a and c, both b and c. Earth"s climate: carbon can be recycled only a limited number of times.

Related Questions

11. As energy flows through the food web in an ecosystem, the amount of energy that is transferred from one trophic level to the next trophic level increases. stays the same. decreases. may increase or decrease, depending upon the system.

12. Autotrophs are organisms that obtain energy by breaking down tissues of organisms that have died. harness external energy sources to produce complex chemical compounds. depend directly on primary producers for their energy and nutrients. eat other autotrophs to obtain energy.

13. Which of the following gives the correct order for energy flow through an ecosystem? primary producers â secondary producers â tertiary producers primary consumers â primary producers â secondary producers secondary consumers â primary consumers â primary producers primary producers â primary consumers â secondary consumers

14. Which one of the following aspects of plant biology is not directly involved in maintaining an adequate supply of water for the entire plant? phloem roots xylem transpiration pull

15. Which structure(s) do most plants use to acquire the energy that they need for cellular processes? the roots the leaves the stem

please answer the following questions TRUE OR FALSE

1)sometimes succession occurs without any change in the species that compose a community

2) The difference between gross primary productivity and net primary productiviry is determined by the respiration of primary producers

3)The net primary productivity is usually more than 80% of gross primary productivity

4) The amount of net secondary productivity cannot exceed the amount of net primary productivity

5) because energy is lost during assimilation and production on;y less than 25% of the energy at one trophic level advances to the next trophic level

Why are there fewer big carnivorous fish in the sea than little carnivorous fish?

9.5 What are the biggest fish in the ocean herbavores?

Why is a food chain an over-simplification of how organisms in an ecosystem interact?

What are the key challenges facing any organism in an ecosystem?

What are some of the main environmental differences between the surface ocean and the deep sea?

What kinds of circulation enhance primary productivity? Suppress it?

What factors control primary productivity and why?

What members of the phytoplankton and zooplankton contribute their shells or tests to marine sediments?

Why is the coastal ocean more productive than the open ocean?

BIOL 121 Chapter Notes - Chapter 54: Hubbard Brook Experimental Forest, Pearson Education, Soil Organic Matter

BIOL 121 Full Course Notes

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