| A | B |
|---|
| The scientific study of how organisms interact with their environment and all the other organisms that live in that environment. | biology |
| Scientists use the word ___ to describe a particular environment and all the living things that are supported by it. | ecosystem |
| Ecosystems are broken down into two classes called ___ factors and ___ factors | biotic, abiotic |
| Plants, micoorganisms, fish, and animals are examples of ___ factors | biotic |
| Rocks, sunlight, temperature, air, and water are examples of ___ factors | Abiotic |
| A ___ is a series of events that happens over and over again. | cycle |
| Plants release water vapor through a process called ___. | transpiration |
| What do plants use during photosynthesis? | carbon dioxide |
| Name two ways carbon dioxide gets into the air. | Burning fossil fuels, humans |
| Almost four-fifths of the air you breathe is clear, colorless ___ gas. | nitrogen |
| All animals must get nitrogen from ___. | plants |
| How does the nitrogen from the atmosphere get into the soil? One source is ___ . | lightning |
| The greatest source of nitrogen is nitrogen-fixing ___. | bacteria |
| A ___ is an organism that captures energy and stores it in food as chemical energy. | producer |
| The most numerous producers are tiny organisms that live in water called ___. | phytoplankton |
| ___ is a word that means third in order. | tertiary |
| ___ are organisms that break down dead plant and animal matter into simpler compounds. | decomposers |
| A pinch of soil may contain almost half a million ___ and billions of ___. | fungi, bacteria |
| Scientists use two different models to show the feeding relationships that transfer energy from organism to organism. These models are ___ ___and ___ ___. | "food chain, food webs" |
| When a catapillar eats leaves, is it able to use all of the energy from the leaves? | no |
| When a bird eats a catapillar does it get all of the energy from the catapillar? | no |
| ___ is the process by which matter becomes concentrated in living things. | biomagnification |
| Does DDT break down over time? | no |
| When DDT was absorded into the enviroment, it got ___ as it was passed up the food chain." | magnified |
| Across Earth there are large geographic areas that are similar in climate and that have similar types of plants and animals. Each of these regions is classified as a ___. | biome |
| What kind of biome do we live in? | temperate forest |
| One of the important characteristics of tundra is ___, a deep layer of permanently frozen soil that lies just below the surface soil. | permafrost |
| Do trees grow well in tundra? | no |
| What types of trees grow in taiga? | coniferous |
| We have a lot of trees in our yard whose leaves fall off in the winter. What class of trees are they? | decidious |
| Redwoods, spruce, and fir are ___ trees | coniferous |
| Oak, birch, beech, and maple are ___ trees. | decidious |
| Examples of freshwater biomes: | lakes, rivers, ponds, streams" |
| What is the name of the place where the fresh water flows into salt water? It's the place where there is a lot of plants growing. Often it's marshy. | estuary |
| Salt water biomes are also called what? | marine biomes |
| The three types of marine biomes are: coastal biomes, open ocean biomes, and ___. | deep sea biomes |
| fungus | It breaks down organic matter into simpler compounds. |
