Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? Copyright © Houghton Mifflin Harcourt Publishing Company 1

Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? Florida Benchmark SC.4.L.17.2 Explain that animals, including humans, cannot make their own food and that when animals eat plants or other animals, the energy stored in the food source is passed to them. Copyright © Houghton Mifflin Harcourt Publishing Company 2

A Bite of Energy Living things need water, air, shelter, and food. Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? A Bite of Energy Living things need water, air, shelter, and food. Plants make their own food. They get their nutrients from the soil. Nutrients are materials used by living things for growth and other life functions. Copyright © Houghton Mifflin Harcourt Publishing Company 3

A Bite of Energy Animals cannot make their own food. Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? A Bite of Energy Animals cannot make their own food. Animals get their nutrients and energy from eating food. Energy is the ability to do work. Copyright © Houghton Mifflin Harcourt Publishing Company 4

Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? A Bite of Energy The food that you eat is broken down into smaller materials in your body. These materials are used by your cells to help you grow, move, think, and talk. Copyright © Houghton Mifflin Harcourt Publishing Company 5

Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? The Food Makers Most plants are producers. Producers make their own food. During photosynthesis, producers use water, carbon dioxide, and the energy from sunlight to make food in the form of sugars. Copyright © Houghton Mifflin Harcourt Publishing Company 6

The Food-Makers What do the arrows show? Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? The Food-Makers What do the arrows show? Copyright © Houghton Mifflin Harcourt Publishing Company 7

Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? The Food-Eaters People and other animals are consumers. Consumers are living things that eat other living things. Some consumers, such as elk, eat only plants. Other consumers, such as frogs, eat only animals. Some consumers eat both plants and animals. Copyright © Houghton Mifflin Harcourt Publishing Company 8

Unit 10 Lesson 2 How Do Organisms Obtain and Use Food? The Cleanup Crew Decomposers get their energy by eating dead plants and animals. Decomposers break down organisms and return the nutrients to the soil, air, or water. This is nature’s recycling process for nutrients. Copyright © Houghton Mifflin Harcourt Publishing Company 9