| Term | Definition |
|---|
| abiotic factors | Non-living physical features of the environment are called |
| biotic factors | Features of the environment that are alive now or once were alive are called |
| sunlight | Which of these is an abiotic factor? |
| the atmosphere | The air that surrounds Earth is called |
| water | An ecosystem with plenty of this tends to be able to support a larger number of living organisms |
| latitude | Which of these affects the temperature of a region? |
| shorter | Trees at higher elevations usually are what compared to those at sea level? |
| air currents | What is created when colder air sinks below warmer air and pushes warmer air upward? |
| nucleic acids | DNA in organisms is formed by |
| the presence of mountains | Rainfall patterns can be affected by |
| It evaporated | A puddle is formed after a rainstorm. After two days of sunshine, the puddle disappears. What happened to the water? |
| condensation | You pour a glass of water. After some time, drops of water appear on the outside of the cup. What is this an example of? |
| Nitrogen goes from the atmosphere to the soil. | Which of these is part of the nitrogen cycle? |
| compost | Which of these can add nitrogen to the soil? |
| a rise in average temperatures on Earth | One possible result of extra carbon dioxide in the atmosphere is |
| producers | Which of these makes its own food? |
| sugar molecules | Grass uses photosynthesis to produce |
| photosynthesize | Consumers are organisms that cannot |
| respiration | The process that is almost the reverse of photosynthesis is |
| Energy can be transferred form one organism to another | Which of these is true? |
| producers | Which of these organisms is the first step in a food chain? |
| in a deep part of the ocean | Where would you find organisms that produce food by chemosynthesis? |
| Grass is eaten by a rabbit, which is eaten by a wolf | Which of these is the correct order of a food chain? |
| sulfur molecules | Which of these is an energy source for chemosynthesis? |
| producers | Which group makes up the largest level of an energy pyramid? |
| soil | Primary succession begins in an area without |
| succession | The gradual changes that happen in the types of species living in a region are called |
| secondary succession | After a house is torn down, the land it stood on begins to have grass and weeds grow from the soil. What is this an example of? |
| climate | This describes the weather patterns that affect a region over a long period of time |
| tundra | Which of these biomes receives little annual precipitation? |
| moose | Which of these animals might be found living in a taiga? |
| temperate deciduous forest | Which biome typically has four distinct seasons? |
| the soil contains little dead vegetation | Which one of these is true of the tropical rain forest biome? |
| desert | Which of these biomes receives the least amount of rainfall every year? |
| the animals move closer to cities to search for food and water | In many desert regions, water is diverted from streams and rivers to provide it to people in cities. How does this impact the animals in the area? |
| corn | Which plant is typically found in grasslands? |
| grasslands | Which biome would the kangaroos of Australia be found in? |
| reef | Which of these is NOT a freshwater ecosystem? |
| nutrients | Because ponds tend to be filled with plant material, these bodies of water are usually high in |
| ponds | These are usually shallow and filled with an abundance of plant and animal life |
| beaver | Which of the following animals can be found in a wetlands environment? |
| 95% | About what percentage of water on Earth's surface contains high concentrations of salt? |
| dark zone | The region below about 200 m in an open ocean is called the |
| an estuary | The body of water where a river and an ocean meet is called |
| at high tide | When is the intertidal zone covered with water? |
| an estuary | In which aquatic ecosystem would you find ocean fish being raised for food for humans? |
| the amount of precipitation | Which of these factors helps determine the climate of a region? |
| coral reef | Which of these aquatic ecosystems has the highest salinity? |
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