Question

1. Write main objections of Darwin theory.

2. Define : (a) Speciation (b) Species

3. Name 2 birds with weak wings.

4. Give examples of organisms using legs for swimming in water.

5. Name the scientist who gave theory of inheritance of acquired characters.

6. Ape-like animals finally evolved into _______ and _______.

7. _________ and _________ use their hands more for eating food and other work.

8. First record of human like animal is with us in the form of __________ ape from East Africa.

9. _________ is the first example of wise-man.

10. About 10 thousand years ago, wise man started to practice the _________.​

Answer 1

Answer:

(i) Darwin could not explain the origin and cause of variations which are generated during evolution. (ii) He emphasised the importance of the fittest organisms. ... (iii) The principle of inheritance was not present during Darwin.

Explanation:

2.1Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages.

2.2a group of plants or animals that are all the same and that can breed together

3.Ostriches, emus

4.water beetles and backswimmer

5.Lamarck

Answer 2

Answer:

Speciation : The formation of new and distinct species in the course of emulation.