GED Test (High School Equivalency) · Science

Life Science

22 practice questions, each with the answer and an explanation.

Practise Life Science now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 22 questions

  1. Which of these is a renewable resource?
  2. Which process describes cells making identical copies of themselves?
  3. What is the main function of red blood cells?
  4. What do producers in a food chain use to make food?
  5. Which gas do plants take in for photosynthesis?
  6. Which part of a plant cell carries out photosynthesis?
  7. If both parents carry one recessive allele (Aa x Aa), what fraction of offspring show the recessive trait?
  8. A trait that gives an organism a better chance to survive is called
  9. Which organ system includes the heart and blood vessels?
  10. In genetics, what is an allele?
  11. Which molecule carries genetic information?
  12. What is the role of decomposers in an ecosystem?
  13. Which organ pumps blood through the human body?
  14. On the GED test, what is the basic unit of life?
  15. Which gas do humans breathe out in greater amounts than they breathe in?
  16. A ball is dropped from a height. What force pulls it toward the ground?
  17. What is the boiling point of water at sea level in degrees Celsius?
  18. Which of these is a mixture?
  19. Which energy change takes place in a battery-powered flashlight?
  20. Which layer of the atmosphere contains the weather we experience?
  21. What is the term for animals that eat only plants?
  22. A scientist changes only the amount of fertilizer given to plants and measures their height. What is the height called?

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