MCQ
Organisms living in open sea are called
- ✓Planktons
- BNektons
- CPelagic
- DBenthos
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$R$ : There always occurs two types of florets in a head.
$(1)$ They have dark colour and high rate of reproduction and excrete solid urine.
$(2)$ They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs.
$(3)$ They feed on dry seeds and do not require drinking water.
$(4)$ They excrete very concentrated urine and do not use water to regulate body temperature.
Which two of the above statements for such animals are true ?