Population Ecology Review

Front

What are the levels of ecology from smallest to the largest?

Back

organism, population, community, ecosystem, biome, biosphere

Front

In a food chain, what breaks down dead material and helps turn it into nutrients in the soil?
Options: producers, decomposers, animals, water

Back

decomposers

Front

An organism that produces its own energy is called a(n)

Back

Autotroph

Front

The mouse in this food web would be considered a: Primary Consumer, Producer, Tertiary Consumer, Secondary Consumer

Back

Secondary Consumer

Front

Energy available in trophic level 2 if trophic level 1 has 3500 Kcal?

Back

350 Kcal

Front

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

Back

90%

Front

What will most likely happen to the hawks and rodents if the insects were removed?

Back

There will be fewer rodents and hawks

Front

What is the arrow pointing at?

Back

carrying capacity

Front

What is an example of a density-independent limiting factor? Options: food, parasites, disease, pollution

Back

pollution

Front

When the birthrate of a population exceeds (more than) its death rate, the population

Back

increases