Page 179 - Science Course 3 (Book 1)
P. 179

Ecosystems and Biomes                             Mo4-L7a: How is an Ecosystem Different

                                                                               From a Biome?
               Lesson 7

                                                                  Biotic Factor
                                                                  a living or once-living thing in an ecosystem.
                 In this topic, you will learn the following
                 lessons:


                 Mo.4–L7a: How is an Ecosystem Different From a
                            Biome?




                                How is an Ecosystem Different
                  Mo4-L7a              From a Biome?

                KEY CONCEPTS:
                1. What are ecosystems?
                2. What are biomes?
                3. What happens when environments change?


                            Vocabulary A-Z                        Population

                            Let us learn some vocabulary          all the organisms of the same species that live in the
                                                                  same area at the same time.

                Ecosystem
                all the living things and nonliving things in a given
                area.



















                                                                  Community
                                                                  all the populations living in an ecosystem at the
                Abiotic Factor                                    same time.
                a nonliving thing in an ecosystem.





















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