Please select a subject first
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Name four kinds of potometers on the basis of the names of the scientists who discovered them.
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Define the following term:
Potometer
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Name the three great cultural revolutions that favoured a steep rise in population.
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Mention two areas of medical sciences which have indirectly contributed to high growth in human population.
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Is the present day human population growth following a J-shaped curve or S-shaped curve?
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Write the exact location of guard cells.
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Give the reason for the following:
A person from bright sunlight outside enters a poorly lit room and feels blinded for a short while.
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The vitamin required for the synthesis of rhodopsin is ______.
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Define the following term:
Adaptation
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Differentiate between members of the following pair with reference to what is asked in the bracket.
Dark and light adaptation (pigments which will be regenerated).
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The figures (A) and (B) given below are showing some kind of adjustment. Study the figures and answer the questions that follow.
| A |  |
 |
B |
- Identify the kinds of adjustments done in the figures (A) and (B).
- Distinguish between the adjustments of figures (A) and (B) on the basis of:
- The size of pupil.
- The pigment which gets regenerated.
- Cells of the retina.
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Define the following term:
Blood
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Name the following:
The inner lighter coloured region of the kidney.
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Name the following:
Knot-like mass of blood capillary inside Bowman's capsule.
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Name the following:
The structural and functional unit of the kidney.
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Name the following:
The blood vessel which enters malpighian capsule.
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Name the following:
The blood vessel which leaves malpighian capsule.
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Given is a jumbled list of the parts of a certain body structure - Loop of Henle, Bowman's capsule, distal convoluted tubule, glomerulus, proximal convoluted tubule.
- Name the structure to which the listed parts belong.
- sequence from the starting point to where they end.
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The blood flows through glomerulus under great pressure.
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The blood flowing through the renal artery is oxygenated and contains a lot of nitrogenous waste.
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