| A | B |
|---|
| A group of maple trees is an example of ---- | population |
| The living parts of an ecosystem are ----- | biotic |
| All the living and nonliving things in an area interact to form an----- | ecosystem |
| An ecosystem that includes many kinds of living things has ---- | diversity |
| Several kinds of plants and animals living in the same place form a ----- | ecosystem |
| Trash in a stream is one kind of ---- | pollution |
| Nonliving factors in an ecosystem are _____ factors | abiotic |
| A _____ includes all the living things and nonliving things in an area. | environment |
| Why should you plant trees in an area that has been logged? | habitat restoration |
| Which of these is NOT abiotic? air, soil, mushrooms, water | mushrooms |
| Which of these is an abiotic factor? lack of food, disease, cold temperatures, introduction of new plants | cold temperatures |
