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Ecology and Biomes Test

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Ecology and Biomes Test

Answer every question. Use the passage on this page where needed. For written answers, explain your thinking in complete sentences.

Field Notes: A Changing Ecosystem

In a cooking class, Sofia and Logan are planning a menu inspired by different biomes. Their research notes say that a biome is a large region with a characteristic climate and typical plants and animals. In a desert, rainfall is scarce, so many organisms conserve water. Grasslands have enough rain for grasses but often too little for many trees. Forests generally have more trees and precipitation. A biome’s organisms interact with one another and with nonliving parts of their environment, such as water, soil, and temperature. Plants and other producers use sunlight to make food. Consumers get energy by eating other organisms, and decomposers break down dead material, returning nutrients to the environment.

1.According to the field notes, which biome is most likely to receive the least rainfall? Give one clue from the notes that supports your choice.

Ecology in Action

Use the field notes to answer Questions 2–6.

2.Which choice best defines ecology?
  • The study of how organisms interact with one another and their environment
  • The process by which rocks form
  • The study of weather on a single day
  • The naming of every plant species
3.Which part of the field notes is an example of a nonliving factor in an ecosystem?
  • A deer
  • A cactus
  • Soil
  • A bison
4.True or false: A grassland usually has enough rain for grasses to grow, but may have too little rain for many trees. Correct the statement if it is false.
TrueFalse
5.Match each ecosystem role to its description.
  • Producer
  • Consumer
  • Decomposer
  • Gets energy by eating other organisms
  • Makes food using energy from sunlight
  • Breaks down dead material and returns nutrients
6.Complete the energy pathway: sunlight → grass → grasshopper → frog. Which organism is the producer, and which organism gets energy directly from the grass?

Apply Your Thinking

Use your ecology knowledge to answer Questions 7–10.

7.A species can survive only within certain conditions, such as a range of temperatures. What does its optimum range mean?
8.In a dry biome, a plant has deep roots that can reach water far below the surface. Explain how this feature may help the plant survive.
9.During a cooking-class research project, Chloe learns that clearing a large area of forest for buildings can reduce habitat. Describe one possible effect on the organisms that live there.
10.Choose one biome described in the field notes. Explain how its climate can affect the plants and animals that live there. Include at least one example.

3 printable pages

  • Ecology and Biomes Test, page 1 of 3: Field Notes: A Changing Ecosystem, Ecology in Action

    Page 1

  • Ecology and Biomes Test, page 2 of 3: Apply Your Thinking

    Page 2

  • Ecology and Biomes Test, page 3 of 3: 10. Choose one biome described in the field notes. Explain how its climate can affect the…

    Page 3

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