Question 1 2 3 4 5 6 7

Short Answer/Essay

1 Points

Question: In ONE sentence, distinguish between the pyramid of energy flow and the pyramid of biomass as representations of trophic levels.

Answer:

They are usually very similar - more biomass in lower trophic levels usually means more energy can flow from those trophic levels to higher levels.

Question 1 2 3 4 5 6 7

Matching

2 Points

Question: Match the terms on the left with the best example on the right.

Answer:

Question 1 2 3 4 5 6 7

Short Answer/Essay

1 Points

Question: Describe one way that biodiversity can be measured.

Answer:

Genetic, species, ecological, and functional diversity are all ways that we can look at biodiversity.

Question 1 2 3 4 5 6 7

Multiple Choice

1 Points

Question: Which of the following best describes how the second law of thermodynamics applies to the concept of trophic levels?

Answer:

All of the organic matter in one trophic level is conserved during transfer to the next higher level.
None of the usable energy in one trophic level is lost as heat before or during transfer to the next higher level.
Much of the usable energy in one trophic level is lost as heat before or during transfer to the next higher level.
It doesn't apply - energy flows with 100% efficiency from one trophic level to another.

Question 1 2 3 4 5 6 7

Multiple Choice

1 Points

Question: Which of the following is true regarding nitrogen and the nitrogen cycle?

Answer:

No organisms can utilize atmospheric nitrogen (N2).
Plants assimilate nitrogen through their roots.
Nitrogen is an important element for life because it is used in making carbohydrates.
The largest reservoir of nitrogen is in sedimentary rocks.

Question 1 2 3 4 5 6 7

Short Answer/Essay

2 Points

Question: Choose EITHER the CARBON or PHOSPHORUS cycle and list one reservoir that stores that nutrient, a form the nutrient takes while in that reservoir, and a process that can move that nutrient into or out of that reservoir.

Answer:

Many are possible.

Question 1 2 3 4 5 6 7

Short Answer/Essay

2 Points

Question: Briefly describe or define one process that can change the genetic composition of a population. Is this microevolution or macroevolution?

Answer:

Mutation, natural selection, gene flow, or genetic drift. All are microevolutionary processes.