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20 questions and answers about the Characteristics of Living Organisms for Grade 7 science

  1. Q: What are the seven characteristics that define living organisms?

  2. Q: Why is growth considered one of the characteristics of living things?

  3. Q: What is the difference between growth and development in living organisms?

  4. Q: How do living organisms respond to stimuli from their environment?

  5. Q: What is the significance of reproduction in living organisms?

  6. Q: Explain the process of photosynthesis and its importance for living organisms.

  7. Q: How do living organisms obtain and utilize energy?

  8. Q: Describe the role of DNA in living organisms.

  9. Q: What is the importance of adaptation for living organisms?

  10. Q: How do living organisms maintain a stable internal environment (homeostasis)?

  11. Q: Differentiate between unicellular and multicellular organisms.

  12. Q: What are the major differences between plants and animals as living organisms?

  13. Q: Why are viruses considered borderline between living and non-living entities?

  14. Q: Explain the concept of metabolism in living organisms.

  15. Q: How do living organisms excrete waste products?

  16. Q: Describe the life cycle of a butterfly as an example of metamorphosis in living organisms.

  17. Q: What are the basic needs of living organisms for survival?

  18. Q: How do living organisms interact with each other in an ecosystem?

  19. Q: What is the role of cellular respiration in living organisms?

  20. Q: Discuss the impact of human activities on the characteristics of living organisms.


  1. A: The seven characteristics of living organisms are growth, reproduction, response to stimuli, metabolism, homeostasis, adaptation, and cellular organization.

  2. A: Growth is considered one of the characteristics of living things because living organisms can increase their size and mass through cell division and expansion.

  3. A: Growth refers to the increase in size or mass of an organism, while development involves changes in the organism's structure, function, and complexity over time.

  4. A: Living organisms respond to stimuli from their environment through their sensory organs and nervous system.

  5. A: Reproduction is crucial for the continuation of a species and passing on genetic information to the next generation.

  6. A: Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen, providing energy and food for living organisms.

  7. A: Living organisms obtain and utilize energy through processes like cellular respiration, where they break down glucose to produce ATP.

  8. A: DNA (Deoxyribonucleic acid) carries genetic information and instructions for the growth, development, and functioning of living organisms.

  9. A: Adaptation allows living organisms to adjust to their environment over time, increasing their chances of survival and reproduction.

  10. A: Homeostasis is the ability of living organisms to maintain a stable internal environment despite external changes.

  11. A: Unicellular organisms consist of a single cell, while multicellular organisms are made up of multiple cells that work together.

  12. A: Plants produce their food through photosynthesis and have cell walls, while animals consume food and lack cell walls.

  13. A: Viruses possess some characteristics of living organisms, like reproduction, but cannot carry out metabolic processes on their own, making their classification challenging.

  14. A: Metabolism refers to the sum of all chemical reactions occurring in living organisms to maintain life and produce energy.

  15. A: Living organisms excrete waste products through various organs, such as the kidneys in animals and stomata in plants.

  16. A: The butterfly undergoes metamorphosis, including egg, larva (caterpillar), pupa (chrysalis), and adult stages.

  17. A: The basic needs of living organisms include food, water, air, and suitable habitat for survival and reproduction.

  18. A: Living organisms interact with each other through various relationships, such as predation, competition, and mutualism, within an ecosystem.

  19. A: Cellular respiration is the process by which living organisms release energy from glucose and produce carbon dioxide and water as by-products.

  20. A: Human activities, such as deforestation and pollution, can negatively impact the characteristics and survival of living organisms and their ecosystems.

Please note that the answers provided here are concise and can be expanded upon based on the level of detail appropriate for Grade 7 students.


Thanks for reading 20 questions and answers about the Characteristics of Living Organisms for Grade 7 science

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