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Science Concepts and Evidence

Grade 7 · Stretch challenge · 8 questions · Version PG-18S14D8-1WPT

1.

What is homeostasis?A. Maintaining stable internal conditions B. An organism that makes its own food C. Genes carry instructions that influence traits D. Heritable traits that improve reproductive success

2.

What do decomposers do?A. Break down dead matter and recycle nutrients B. The cell C. Genes carry instructions that influence traits D. Resources and environmental conditions

3.

What is a producer?A. An organism that makes its own food B. The cell C. Chloroplasts D. Break down dead matter and recycle nutrients

4.

What does natural selection favor?A. Heritable traits that improve reproductive success B. Resources and environmental conditions C. Chloroplasts D. Maintaining stable internal conditions

5.

What is the basic unit of life?A. Chloroplasts B. Maintaining stable internal conditions C. The cell D. Break down dead matter and recycle nutrients

6.

Where does photosynthesis occur in plant cells?A. Maintaining stable internal conditions B. Resources and environmental conditions C. Heritable traits that improve reproductive success D. Chloroplasts

7.

What limits population growth?A. Resources and environmental conditions B. Genes carry instructions that influence traits C. Chloroplasts D. The cell

8.

How do genes relate to traits?A. Genes carry instructions that influence traits B. The cell C. Heritable traits that improve reproductive success D. Resources and environmental conditions

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 5
  1. What is homeostasis?Maintaining stable internal conditions
  2. What do decomposers do?Break down dead matter and recycle nutrients
  3. What is a producer?An organism that makes its own food
  4. What does natural selection favor?Heritable traits that improve reproductive success
  5. What is the basic unit of life?The cell
  6. Where does photosynthesis occur in plant cells?Chloroplasts
  7. What limits population growth?Resources and environmental conditions
  8. How do genes relate to traits?Genes carry instructions that influence traits

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.