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Ecology: Organisms and Their Environments

Ecology: Organisms and Their Environments

Ecology: Organisms and Their Environments: Niche it Out Quiz

Think you’ve got your head wrapped around Ecology: Organisms and Their Environments? Put your knowledge to the test. Good luck — the Stickman is counting on you!
Q. Why is Maximum Sustainable Yield (MSY) so difficult to measure?

There are too few ecologists available to measure it.
MSY does not actually exist.
Most populations grow exponentially, not logistically.
Carrying capacity is hard to determine.
There are too many ecologists period.
Q. Competitive interactions can have which of the following results?

Never-ending competition
Resource partitioning
Primary succession
Population growth
Exponential growth
Q. An aphid eats a plant. A ladybug eats the aphid. A bird eats the ladybug. A cat eats the bird. In this food chain, how would we classify the cat?

Primary consumer
Secondary consumer
Tertiary consumer
Quaternary consumer
Q. A niche is best described as

the way an organism lives in a community.
the role an organism plays in a community.
the place an organism lives in a community.
the first and second choices.
the first and third choices.
Q. Most of the carbon in the world is found in the atmosphere and is bonded to

Q. An example of mutualism is

nitrogen-fixing bacteria that receive nutrients from plants.
lice that receives nutrients from a dog.
remora sharks that attach themselves to whales to more easily find food.
none of the above.
all of the above.
Q. When two species have overlapping niches, the first thing to occur is

character displacement.
resource partitioning.
population growth.
Q. If the producers in a community convert 10,000 calories from the Sun into biomass, how many of these calories will reach the tertiary consumers?

Q. In the 1800s, a catastrophic volcanic eruption occurred on the island of Krakatoa, destroying all life. Ecologically, what happened first after the eruption?

Small herbs and shrubs began to grow.
Trees reappeared.
A climax community formed.
Small fungi and lichens began to grow.
Cats appeared.
Q. An age pyramid for a particular country has a large base and tapers to a point at the top. The country is likely

an island.
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