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Ch 20: Ecosystems
| Question | Answer |
|---|---|
| 1What is a biome? | An area of land categorized by the precipitation, temperature, plants and animals that live there |
| What two factors determine the climate in an area? | precipitation and temperature |
| What three major abiotic factors affect marine ecosystems? | 1. temp of water 2. amount of sunlight 3. depth |
| What is the major abiotic factor affecting freshwater ecosystems? | speed of the water |
| What is permafrost? | a layer of permanently frozen soil found in the tundra |
| What is the difference between polar and alpine tundra? | polar = near the poles and alpine = near the treeline up a mountain |
| What is another name for the coniferious forest? | Taiga |
| Which biome do we live in? | Decidious Forest |
| What is the intertidal zone? | This zone is in marine ecosystems where the water meets the land. 1/2 land 1/2 water |
| Name the three ocean zones based on temperature. | Surface zone ( 0-300 meters) Thermocline (301 - 700 meters), Deep zone ( 701 meters and below |
| Name the three zones of a lake or pond | 1. littoral 2. open water zone and 3. deep water zone |
| which organisms make up the base of the food chain in a marine ecosystem? | plankton |
| When do most of the animals in the desert come out ? why? | during the night / the temperatures are cooler |
| What are the four ocean zones based on depth? | 1. intertidal 2. nertic 3. oceanic and 4. benthic |
| What is an estuary? | When salt and freshwater mix |
| what are plankton? | tiny microorganisms that go through photosynthesis |
| what is a wetland? | an area of land that is periodically under water. Very wet as it holds a lot of the water from the surrouding areas |
| what are two types of wetlands? | marshes and swamps |
| How much of the EARTH is covered in salt water? | 97 % |
| About what percent of the planet is covered in water? | 3/4 |
| Another name for the coniferous forest? | Taiga |
| The name of the biome we live in? | Deciduous Forest |
| These two biomes receive the LEAST amount of precipitation | desert and tundra |
| This biome receives the LARGEST amount of precipitation | rain Forest |
| Two types of tundra are: | Polar and alpine tundra |
| what is special about evergreen trees? | they stay green all year long/keep their needles throughout the winter |
| What does "deciduous" mean? | to fall off |
| The 4 levels of the rain forest are | emergent, canopy, understory, forest floor |
| What is biodiversity? | The variety of species in an area |
| Which biome has the highest biodiversity? | Rainforest |
| In which biome due animals make adaptations to adapt to the harsh weather such as being active at night? | desert |
| which biome had poor nutrient in the soil due to all of the plant life using the nutrients? | rain forest |
| what is permaforest | a Permanently frozen layer of soil |
Created by:
mlugerner