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define Iris....

define Iris.

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**Step-by-Step Text Solution:** 1. **Introduction to the Eye**: The iris is a part of the human eye, which is essential for vision. 2. **Location and Appearance**: The iris is located in the front part of the eye and is the colored portion surrounding the pupil. The color of the iris can vary among individuals, appearing in shades such as black, blue, green, or brown. 3. **Definition of Iris**: The iris is defined as a thin membrane in the eye that plays a critical role in vision. ...
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ICSE-SAMPLE QUESTION PAPER 3-SECTION-II
  1. define Iris.

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  2. The given diagram shows a stage during mitotic division in an animal c...

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  3. State the main function of: (i) Erythrocytes (ii) Lymph (iii) N...

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  4. The figures given below are crose-coctions of blood vessels Ident...

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  5. Explain the following term : Osmosis

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  6. Explain the following term : Turgor pressure.

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  7. Explain the term root pressure.

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  8. State whether true or false. Rewrite the false statements in their cor...

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  9. Define the following Photophosphorylation.

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  10. A candidate in order to study the process of osmosis has taken 3 potat...

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  11. Name the following: The respiratory pigment present in erythrocytes...

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  12. The phase of cardiac cycle in which the auricles contract.

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  13. The blood vessel which carries oxygenated blood to the liver.

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  14. Name the following: The vein that carries oxygenated blood.

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  15. Covering of the lungs is called

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  16. The diagram given below shows a section of a human kidney. Study the d...

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  17. Match the items given in Column A with the most appropriate ones in Co...

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  18. The diagram given below is an experiment conducted to study a factor n...

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  19. What do the following abbreviations stand for : (i) AMP (ii) ADP (i...

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  20. The following diagram represents the human brain as seen in an externa...

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  21. Account for the following briefly : Herbaceous plants growing in we...

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