Why do nocturnal animals like owls have mainly rods in the retina ?

Why do aquatic animals die in boiled water ?

When and why do some animals like frogs hibernate ?

When and why do same animals like snails go into aestivation ?

Why do marine animals live deep inside of lake when the surface of the lake freezes?

Characteristics of three animals are given below : (a) To which group of animals does each of these belong? (b) Which of these animals is most likely to have gills at certain stages of its life cycle ? (c) Name one animal for each group that may fulfill these characteristics .

When and why do some animals like snails go into aestivation ?

Why do cold-blooded animals have no fat layer under their skin?

Why do noble gases have positive electron gain enthalpies?

Given below are assertion and reason. Point out if both are true with reason being correct explanation (A). Both correct but reason not correct explanation (B), assertion correct but reason wrong (C ), both are wrong (D). Asserion, Owls move freely during night. Reason. They have large number of rods on their retina.