Question

write true if the statement is true and false if the statement is false.

1. ecology is usually considered to be a branch of biology.
2. the environment of an organism includes only nonliving 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. organisms 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

Explanation:

1. Ecology studies organisms and their environment, a key part of biology.
2. The environment includes both biotic (living) and abiotic (non - living) factors.
3. The biosphere extends from about 11,000 meters below sea level (in the ocean) to about 11,000 meters above sea level.
4. Human population growth affects resources, habitats etc., an ecological issue.
5. A community is all the populations (biotic) in an area, part of an ecosystem.
6. Ecosystems are open in terms of energy (get energy from the sun).
7. Ecosystems depend on continuous energy (not matter, matter is recycled) from outside (sun).
8. Niche includes food source, so different food sources mean different niches.
9. Insulation (like fat, fur) helps mammals in cold habitats retain heat.
10. Competitive exclusion principle: different species can't share the same niche long - term.
11. Field studies are data collection in natural (not just open areas like fields) habitats.
12. Ecologists use descriptive statistics to describe data, inferential for making inferences.

Answer:

1. True
2. False
3. False
4. True
5. True
6. False
7. False
8. True
9. True
10. True
11. False
12. False