Consider the following statements For ...

Consider the following statements
For osmoregulation in aquatic medium
1. A freshwater fish has to drink water continuously
2. A marine bony fish has to drink water continuously
3. A freshwater fish produces copious urine, which is hypo-osmotic to blood
4. A marine fish produces scanty urine, which is hypo-osmotic to blood
Which of the statements given above is/are correct?

1 only

4 only

1 and 4

2 and 3

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