 |
| 1 | |
Changes to ecosystems caused by human activities have consequences for… |
| | A) | neither the abiotic or biotic parts of these ecosystems. |
| | B) | only the abiotic parts of these ecosystems. |
| | C) | only the biotic parts of these ecosystems. |
| | D) | the biotic and abiotic parts of these ecosystems. |
|
|
|
| 2 | |
An introduced species is… |
| | A) | an animal population that has been deliberately introduced by human activities. |
| | B) | a plant species that has been reintroduced into its natural environment. |
| | C) | any plant, animal, or other species that has been introduced into and lives in an ecosystem where it is found naturally. |
| | D) | any plant, animal, or other species that has been introduced into and lives in an ecosystem where it is not found naturally. |
|
|
|
| 3 | |
Introduced species affect native species by… |
| | A) | sharing resources. |
| | B) | increasing the resources available. |
| | C) | decreasing the resources available. |
| | D) | having no effect on the resources available. |
|
|
|
| 4 | |
When European starlings were introduced to New York, they… |
| | A) | shared nesting sites with other birds. |
| | B) | competed with native birds for nesting sites. |
| | C) | increased the populations of native birds. |
| | D) | allowed grain and fruit crops to increase in yield. |
|
|
|
| 5 | |
Species diversity is… |
| | A) | the number and variety of different species of living things in an area. |
| | B) | the number of an organism present in an area. |
| | C) | the number and variety of different animals living in a specific area. |
| | D) | the number and variety of non-living resources found in an area. |
|
|
|
| 6 | |
Which of the following are examples of introduced species now found in Ontario? |
| | A) | eastern white pine, sea lamprey, zebra mussel |
| | B) | Eurasian watermilfoil, woodland caribou, eastern white pine |
| | C) | Eurasian watermilfoil, sea lamprey, zebra mussel |
| | D) | northern pike, sea lamprey, zebra mussel |
|
|
|
| 7 | |
A watershed is… |
| | A) | an aquatic environment such as a pond, lake, or river. |
| | B) | any area of land that drains into a pond, lake, river, or ocean. |
| | C) | any area of land that drains into large oceans. |
| | D) | any area of land changed by human activities to drain into a river. |
|
|
.