Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
7th gr 2.3
WED, watersheds, succession, biomes
| Question | Answer |
|---|---|
| Name types of chemical weathering. | oxidation, acid rain, lichens |
| Name types of mechanical weathering. | wind (abrasion), plant roots, water, ice wedging, heat/cold |
| What does secondary succession start with? | Soil |
| What does primary succession start with? | Rock |
| What is an independent variable is? | What is changed by the scientist in the experiment. |
| Name some biotic factors. | plants, animals, living things |
| Name some abiotic factors. | water, air, rocks- non living, weather |
| Define biodiversity. | The number of different species of plants and animals in an area. |
| The great the biodiversity the _________ the ecosystem can withstand environmental stress. | better |
| What type of succession occurs after a natural disaster? | Secondary |
| Primary succession occurs after... (2 examples) | volcano or glacier |
| Define ecoregions. | Division of the state into geographically similar areas define by climate and animal and plants species. |
| What type of erosion agents (forces) would form a canyon? | wind and water |
| Define equilibrium. | The state of a system that is at rest or in a constant and unchanging, motion. Shows no tendency to alter over time. |
| Define sustainable. | Capable of being maintained at a steady level. |
| What contributes to greater sustainability of an ecosystem? | Biodiversity |
| What is a climax community? | A stable state of succession or end product of succession. |
| Define limiting factors. | Factors that limit the ability of a habitat to sustain a population. |
| A small specialized habitat is called a _________. | microhabit |
| What contributes to greater sustainability of an ecosystem? | Biodiversity |
| What is a climax community? | A stable state of succession or end product of succession. |
| Define limiting factors. | Factors that limit the ability of a habitat to sustain a population. |
| Name the worse threats to biodiversity. | loss of natural habitat |
| What are some examples of non-point source pollution? | Washing car, fertilizing the yard, pest control |
| What are examples of point source pollution? | oil spill, factory pollution |
| What occur in the final stages of succession? | shrubs and trees of increasing size |
Created by:
kcombs
Popular Earth Science sets