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Class 10ScienceWorld of LivingLife ProcessesExpertLevel 23
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Simple diffusion is enough in a unicellular organism but why is a transport system necessary in a large organism?

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Answer and explanation

Correct answer: Inner cells are far from the external environment

Step 1: The surface of a unicellular organism directly contacts the environment. Step 2: In large organisms many cells are inside. Step 3: Therefore a transport system is needed to deliver substances.

Related tags

DiffusionMulticellular OrganismsTransport

Frequently asked questions

What is the correct answer to this question?

Inner cells are far from the external environment

Why is this the correct answer?

Step 1: The surface of a unicellular organism directly contacts the environment. Step 2: In large organisms many cells are inside. Step 3: Therefore a transport system is needed to deliver substances.

Which subject and chapter does this question cover?

This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.

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10 more MCQs
  1. 1What is the main meaning of life processes?
  2. 2What are organisms that make their own food called?
  3. 3What are organisms that depend on other organisms for food called?
  4. 4Which energy do green plants use in the process of making food?
  5. 5Which gas do plants mainly take in during photosynthesis?
  6. 6Which gas do plants release during photosynthesis?
  7. 7What is the green substance in leaves that helps capture light called?
  8. 8What are the tiny pores in leaves through which gases are exchanged called?
  9. 9Which cells control the opening and closing of stomata?
  10. 10Where does digestion of food normally begin in humans?
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