Ecosystems Homework Practice
| # | Answer |
|---|---|
| 1 | An ecosystem is a place where living things and nonliving things interact. |
| 2 | A plant, animal, or fungus. |
| 3 | Water, air, sunlight, or soil. |
| 4 | Plants need water, sunlight, air, and nutrients from soil. |
| 5 | Animals need food, water, air, and shelter. |
| 6 | A producer is a living thing that makes its own food, like a plant. |
| 7 | A consumer is a living thing that gets energy by eating other living things. |
| 8 | A decomposer is a living thing that breaks down dead plants and animals. |
| 9 | Grass, trees, or algae. |
| 10 | A rabbit, deer, or bird. |
| 11 | A mushroom, bacteria, or earthworm. |
| 12 | Plants make food and provide oxygen and shelter for other living things. |
| 13 | Sunlight gives energy to plants so they can make food. |
| 14 | Water helps living things survive and grow. |
| 15 | A habitat is the place where a living thing lives. |
| 16 | A population is a group of the same kind of living thing in one area. |
| 17 | A community is all the different living things in one area. |
| 18 | A food chain shows how energy moves from one living thing to another. |
| 19 | A producer starts most food chains. |
| 20 | Herbivores eat plants. |
| 21 | Carnivores eat other animals. |
| 22 | Omnivores eat both plants and animals. |
| 23 | Example: grass -> rabbit -> fox. |
| 24 | Other living things would not have food or energy, so the ecosystem would be affected greatly. |
| 25 | They break down dead things and return nutrients to the soil. |
| 26 | Pollution can harm living things and make water, air, or soil unsafe. |
| 27 | Animals need shelter for protection, safety, and rest. |
| 28 | Trees provide food, shelter, and oxygen. |
| 29 | It means living and nonliving things affect one another. |
| 30 | Sunlight, water, air, temperature, or soil. |
| 31 | A plant, animal, fungus, or bacterium. |
| 32 | A pond has lots of water, while a desert has very little water. |
| 33 | They may live in groups for protection, finding food, or caring for young. |
| 34 | Some plants and animals might have less water and struggle to survive. |
| 35 | People can reduce waste, recycle, save water, and avoid littering. |
| 36 | The Sun. |
| 37 | The energy is passed along as one organism eats another. |
| 38 | Green plants can make their own food using sunlight. |
| 39 | A food web is many connected food chains in an ecosystem. |
| 40 | A food chain shows one path of energy, while a food web shows many paths. |
| 41 | They may use up too much food and affect other living things. |
| 42 | Predators help control the number of prey animals. |
| 43 | Prey animals provide food for predators and help keep food chains going. |
| 44 | Bees depend on flowers for nectar, and flowers depend on bees for pollination. |
| 45 | Seasons can change temperature, food, and water availability for living things. |
| 46 | They migrate to find food, warmer weather, or a safe place to live. |
| 47 | Animals may lose shelter and food, and the ecosystem may change. |
| 48 | Soil provides support, water, and nutrients for plants. |
| 49 | A fish depends on clean water, oxygen, and food in the water. |
| 50 | Ecosystems are important because they provide food, water, shelter, and energy for living things to survive. |