Grade 6E Test 2 review

True or False: An ecosystem is all the living things in a given area.

• true

• false

Name 3 biotic factors and 3 abiotic factors in this ecosystem:

A _________________ is a group of organisms that can reproduce.

All the populations living in the same area at the same time is called a:

• population

• community

• ecosystem

• habitat

When will a population grow?

• when there are more births than deaths

• when there are more deaths than births

• when the births and the deaths are equal

Which of these can be limiting factors in an ecosystem?

• space

• temperature

• water

• food

What is the carrying capacity of an area?

• the number of individuals in an ecosystem

• the minimum number of individuals in an ecosystem

• the maximum number of individuals in an ecosystem

• none of the above

Overpopulation is when the population is so large that it causes ______ to the environment.

What can cause a population to decrease?

• floods

• fire

• famine

• fortune

What is the difference between extinction and endangered?