True or False


1.ecology is usually considered to be a branch of biology

2.The environment of an organism includes only non living physical factors

3.The biosphere extends from sea level to about 11,000 meters above sea level

4.An important ecological issue is the rapid growth of the human population

5.A community is the biotic component of an
ecosystem

6.An ecosystem is always closed in terms of energy

7.An ecosystem depends on continuous inputs of matter from outside the system

8.Organisma that depend on different food sources have different niches

9.Mammals that live in very cold habitats must have insulation to help them stay warm

10.Different species cannot occupy the same niche in the same geographic area for very long

11.Field studies refer to the collection of data in a field, meadow,or other open area

12.Ecologists use inferential statistics to describe the data they collect.​

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