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Life Processes

Question

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Lower organisms do not have lungs. How do they respire?

Solution

Lower organisms give out CO₂ and take in oxygen through their outer body surface by diffusion.

Some More Questions From Life Processes Chapter

Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?

What criteria do we use to decide whether something is alive?

What are outside raw materials used for by an organism?

What processes would you consider essential for maintaining life?

From where do you get the energy to do work from?

Name the main modes of nutrition.

What are the modes of nutrition other than autotrophic nutrition?

What are the raw materials for photosynthesis?

What is the primary source of energy for all living beings?

Are there organisms that do not require water for photosynthesis?

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