Question

Q1. How do animals living in cold regions keep

themselves warm?

Q2. Why does a fish lay a large number of eggs at a

time?​

Answer 1

Answer:

1. Clothes form a thermal barrier between our warm bodies and the cold weather, preventing heat from escaping. Other mammals have developed natural barriers to trap body heat, allowing them to survive in cold climates. ... In other words, these animals can keep all of their heat inside, losing none to the environment
2. fish lays thousands of eggs because some of them are eaten by big animals and some of them don't get enough Oxygen and some more things that they can't grow , So fish has to lay many Eggs so that so of them becomes a new one

Answer 2

Answer:

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Explanation:

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Animals have some unique adaptations to stay warm. Many (non polar) animals are ectotherms (ecto-outside) , which means that they generate so little heat internally they are dependent on the external environment to warm them up to a level where their body and enzymes function sufficiently well enough for an active and functional life. All polar land animals of any size therefore need to be warm-blooded to be active.

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(1)External fertilization is occurring in fishes.(2) The male releases a large number of gametes in the external medium (Water) while the female parent lays a vast number of eggs.(3) Eggs and sperms may be carried to large distances or may be consumed by predators present in the medium thus loss of the gametes can take place.(4) Hence in fishes, the fertilization of male and female gamete is a chance factor and it depends on nature too.

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