To develop varieties with better characteristics, such as:
1. Higher yield
2. Disease resistance
3. Flood resistance
4. Early to mature
5. Adaptability to wide range of habitats
6. Resistance to alkaline and saline soil conditions
7. Better quality
8. Drought resistance
9. Response to manuring
10. Insect and pest resistanc
Differentiate between Apes and Man with respect to the following characteristics :
(i) Posture (ii) Cranium
(iii) Brow ridges (iv) Locomotion