BIO 220 Topic 2 Quiz

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Which of the following is not a biome?

Estuary

Which of the following best describes a keystone species:

A species that greatly alters an ecosystem if removed

Non-native species are introduces by:

All of the above (travel, settlement, use for landscaping/farming)

Which of the following terms includes all others?

Biosphere

What is the difference between R vs. K selection?

K selection has a low number of offspring and a long life span; R selection has a higher number of offspring and short life span.

Which of the following is not a characteristic of a living organism?

Movement

When 2 species require the same limited resources and can reduce the overall health of one or both species is an example of:

Competition

What is a niche?

The specific role an organism plays in an ecosystem

The quality of energy decreases every time it is transferred between trophic levels because it is inefficient. This is an example of the:

Second law of thermodynamics


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