Chapter 5: Ecosystems

What factors make ecosystems different?

• Climate and soil

• Animals and plants

• Air and water

• Sunlight and landforms

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Which animals live in the desert?

• Cactus plant, coyotes, and lizards

• Grasshoppers, wildebeest, and armadillos

• Arctic foxes, caribou, and penguins

• Lions and tigers

What helps many organisms survive in an ecosystem?

• Climate and soil

• Special structures like wings to fly, webbed feet to swim, or fur to keep warm

• Air and water

• Sunlight and landforms

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How is an environment described?

• A place with only living things

• A balance where one side holds what lives in the environment and the other side holds resources

• A place with only nonliving things

• A place with only plants

Which of the following are renewable resources?

• Coal and oil

• Solar energy and wind energy

• Natural gas and minerals

• Ores and fossil fuels

What are nonrenewable resources?

• Resources that can be replaced quickly

• Resources that exist in limited amounts or are used faster than they can be replaced in nature

• Resources that are always available

• Resources that are never used

What are mineral resources often found in?

• Fossil fuels

• Ores

• Water

• Air

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What is a cast fossil?

• A fossil made of minerals that filled a mold

• A fossil found in amber

• A fossil that is still alive

• A fossil made of bones

What are tar pits?

• Oily pools that have preserved the bones of some animals

• Holes in the ground filled with water

• Places where plants grow

• Areas where rocks are found

What do trace fossils give us clues about?

• A living thing’s activities

• The color of a living thing

• The size of a living thing

• The age of a living thing

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