Habitats and Ecosystems — Answer Key
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
A monkey swings through trees in the tundra habitat.
Corrected: A monkey swings through trees in the forest habitat.
The corrected sentence is: "A monkey swings through trees in the forest habitat.". The original sentence "A monkey swings through trees in the tundra habitat." contained an error that needed to be fixed.
2. Fix the sentence:
Sea turtles lay their eggs on the ocean floor.
Corrected: Sea turtles lay their eggs on sandy beaches.
The corrected sentence is: "Sea turtles lay their eggs on sandy beaches.". The original sentence "Sea turtles lay their eggs on the ocean floor." contained an error that needed to be fixed.
3. Fix the sentence:
Cactus plants grow in the forest where it rains a lot.
Corrected: Cactus plants grow in the desert where it is dry.
The corrected sentence is: "Cactus plants grow in the desert where it is dry.". The original sentence "Cactus plants grow in the forest where it rains a lot." contained an error that needed to be fixed.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. All the living and nonliving things in a habitat make up an ecosystem.
An ecosystem includes all the living things (plants, animals) and nonliving things (water, soil, sunlight) in an area working together.
2. The tundra is a very cold habitat with snow and ice.
The tundra is one of the coldest habitats on Earth, covered in snow and ice for most of the year.
3. Fish, whales, and dolphins live in the ocean habitat.
The ocean habitat is a large body of saltwater where fish, coral, and dolphins live.
4. Animals need food, water, shelter, and space to survive.
Animals need space that provides food, shelter, and safe places to raise their young in order to survive.
Part C: True or False?
Read each statement. Circle True or False.
1. An ecosystem includes both living and nonliving things.
True False
The statement is true based on ecosystem concepts.
2. All animals can live in any habitat.
True False
The statement is false; check the ecosystem concept carefully.
3. A cactus stores water inside its thick stem.
True False
The statement is true based on ecosystem concepts.