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Human Body & Health

Grade 5 · Stretch challenge · 8 questions · Version PG-VXZH1X-1QHO

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1.How do lungs and circulation interact?
2.How do vaccines help?
3.What maintains stable internal conditions?
4.What carries oxygen from lungs to cells?
5.Why is a balanced diet useful?
6.What is the immune system's job?
7.Which system sends messages through nerves?
8.Which cells carry oxygen?

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 2
  1. How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
  2. How do vaccines help?They prepare immunity to recognize a pathogen
  3. What maintains stable internal conditions?Homeostasis
  4. What carries oxygen from lungs to cells?The circulatory system
  5. Why is a balanced diet useful?It supplies varied nutrients
  6. What is the immune system's job?Defend against harmful pathogens
  7. Which system sends messages through nerves?The nervous system
  8. Which cells carry oxygen?Red blood cells

Worked example

Connect a structure to its function and explain how body systems work together.

Common mistake

Naming an organ without explaining its system role.

Helpful hint

Trace what enters, changes, and leaves the system.