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Science Chapter 5

a species that no longer exists extinct
a scientist who studies fossils paleontologist
all the living and nonliving things in an environment ecosystem
the remains or marks of an animal/plant that lived long ago fossil
the area or place where an animal lives habitat
ecosystems of North America tundra, grassland, desert, wetlands, rainforest
Name the steps in which a fossil is formed. 1. animal dies, sinks to the bottom of a lake.the soft part decays. 2. Sand, mud and other sediments settle on top of the animal. 3. More layers of sediments form. sediment hardens into rock. 4. Rock layers wear away and the fossil is revealed
a resource that can be replaced renewable resource
a resource that cannot be replaced nonrenewable resource
two or more living things need the same resources in order to survive competition
all the members of one species that live within an ecosystem population
tells us how plants and animals have changed over time fossils
a fossil such as a footprint or nest that shows how an animal lived trace fossil
supplies found in nature natural resources
How do humans cause changes in an environment. They clear trees, which include animals homes, to build houses. They pollute the environment in which animals live.
Created by: msholmangrade4