19. The table below shows a description of size of glomeruli and renal tubules of two animalswhich are adapted to living in different environment:-Animal A Animal BFOR MARKING SCHEMES CALL/WHATSAP P0705525657/077019580716Glomeruli large and few small and manyRenal tubules short longa) Name the likely environment in which animal A livesb) Suggest the main nitrogenous waste produced by animal Bc) Name the organelle of osmoregulation in each of the following animal: i) Parameciumii) Insect
Question
- The table below shows a description of size of glomeruli and renal tubules of two animalswhich are adapted to living in different environment:-Animal A Animal BFOR MARKING SCHEMES CALL/WHATSAP P0705525657/077019580716Glomeruli large and few small and manyRenal tubules short longa) Name the likely environment in which animal A livesb) Suggest the main nitrogenous waste produced by animal Bc) Name the organelle of osmoregulation in each of the following animal: i) Parameciumii) Insect
Solution
a) Animal A likely lives in a water-rich environment. This is because large and few glomeruli suggest that the animal has a lower rate of filtration, which is typical for animals in water-rich environments where there is no need to conserve water.
b) Animal B likely produces urea as the main nitrogenous waste. This is because long renal tubules suggest that the animal has a high capacity for reabsorption, which is necessary for the conversion of ammonia to urea. Urea is less toxic than ammonia and can be stored in the body for longer periods, which is beneficial in environments where water is scarce.
c) The organelle of osmoregulation in each of the following animals are: i) Paramecium - Contractile vacuole ii) Insect - Malpighian tubules
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