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प्रश्न
In summer the urine is slightly thicker than in winter explain the reason.
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उत्तर
During summer, a considerable part of water is lost through perspiration so the kidneys have to reabsorb more water from the urine. This makes the urine thicker in summer than in winters.
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संबंधित प्रश्न
Match structures given in Column I with functions given in Column II.
| Column I | Column II | ||
| (i) | Stomata | (a) | Absorption of water |
| (ii) | Xylem | (b) | Transpiration |
| (iii) | Root hairs | (c) | Transport of food |
| (iv) | Phloem | (d) | Transport of water |
| (e) | Synthesis of carbohydrates |
What does the bladder in our body do?
In which of the following are the largest amounts of nitrogen excreted from a mammalian body?
Name the following:
The vein in which urea concentration is maximum
Define the following term :
Renal pelvis
Explain the difference between the excretory system of humans and plants.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Why does the cortex of the kidney show a dotted appearance?
Name the Following
The Inner concave margin of kidney.
Name the Following
The term used for Bowman’s capsule and glomerulus together.
Choose the odd one out in the following set and write the category for the remaining term:
Ammonia, urea, excess sodium chloride, uric acid
