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Science Concepts and Evidence

Grade 7 · Stretch challenge · 8 questions · Version PG-1SZ2WOO-1WPT

1.

What limits population growth?A. Resources and environmental conditions B. The cell C. Chloroplasts D. Break down dead matter and recycle nutrients

2.

What is the basic unit of life?A. The cell B. Resources and environmental conditions C. Chloroplasts D. Genes carry instructions that influence traits

3.

What is a producer?A. An organism that makes its own food B. The cell C. Resources and environmental conditions D. Chloroplasts

4.

How do genes relate to traits?A. Maintaining stable internal conditions B. Genes carry instructions that influence traits C. An organism that makes its own food D. Break down dead matter and recycle nutrients

5.

Where does photosynthesis occur in plant cells?A. Chloroplasts B. Break down dead matter and recycle nutrients C. Heritable traits that improve reproductive success D. The cell

6.

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

7.

What do decomposers do?A. Heritable traits that improve reproductive success B. Break down dead matter and recycle nutrients C. The cell D. Chloroplasts

8.

What is homeostasis?A. Genes carry instructions that influence traits B. Resources and environmental conditions C. The cell D. Maintaining stable internal 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 18
  1. What limits population growth?Resources and environmental conditions
  2. What is the basic unit of life?The cell
  3. What is a producer?An organism that makes its own food
  4. How do genes relate to traits?Genes carry instructions that influence traits
  5. Where does photosynthesis occur in plant cells?Chloroplasts
  6. What does natural selection favor?Heritable traits that improve reproductive success
  7. What do decomposers do?Break down dead matter and recycle nutrients
  8. What is homeostasis?Maintaining stable internal conditions

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.