Why did not early man domesticated animals like Elephant, Tiger etc. or birds like Eagle and Owl?

Why did early man domesticated only some animals?

When did early human like form appear on the earth?

How do animals like snakes, dogs etc protect themselves from predators?

Which of the following are true about wool ?(i) Hair of animals like goat, sheep, camel etc, are used to obtain woolen fibre (ii) Fabrics like shawls and sweaters are obtained from wool (iii) wool is a poor conductor of heat and it protects us from cold (iv) Woolen cloth helps douse fire.

What made plants carry out photosynthesis while even green coloured animals (like some birds) could not?

Medicines are either man made (i.e., synthetic) or obtained from living organisms like plants, bacteria, animals etc. and hence the latter are called 'natural products. Sometimes natural products are chemically altered by man to reduce toxicity or side effects. Write against each of the following whether they were initially obtained as a natural product or as a synthetic chemical. a) Penicillin_ b) Sulfonamide_ c) Vitamin C __. d) Growth Hormone ___

How do animals like cow, buffalo, camel etc., take their food. What is rumination?

In the pond , we find that different organisms live in different regions. This is due to some conditions like availability of different amount of food, air, light etc. Now let us study the table 4 , showing organisms living in different regions of a pond and answer the question. What are the animals that share the surface of the pond as habitat?

In the pond , we find that different organisms live in different regions. This is due to some conditions like availability of different amount of food, air, light etc. Now let us study the table 4 , showing organisms living in different regions of a pond and answer the question. Do all animals in the pond have tails?