The various components of human evolution are as follows.
(i) Brain capacity
(ii) Posture
iii. Food / dietary preference and other important features
|
Name |
Brain capacity |
Posture |
Food |
Features |
1. |
Dryopithecus africans |
--- |
Knuckle walker, walked similar to gorillas and chimpanzees (was more ape-like) |
Soft fruit and leaves |
Canines large, arms and legs are of equal size |
2. |
Ramapithecus |
--- |
Semi-erect (more man-like) |
Seeds, nuts |
Canines were small while molars were large. |
3. |
Australopithecus africanus |
450 cm3 |
Full erect posture, height (1.05 m) |
Herbivorous (ate fruits) |
Hunted with stone weapons, lived at trees, canines and incisors were small |
4. |
Homo habilis |
735cm3 |
Fully erect posture, height (1.5 m) |
Carnivorous |
Canines were small. They were first tool makers. |
5. |
Homo erectus |
800-1100 cm3 |
Fully erect posture, height(1.5-1.8 m ) |
Omnivorous |
They used stone and bone tools for hunting games. |
6. |
Homo neanderthalnsis |
1300-1600 cm3 |
Fully erect posture, height (1.5-1.66 m) |
Omnivorous |
Cave dwellers, used hides to protect their bodies, and buried their dead |
7. |
Homo sapiens fossilis |
1650 cm3 |
Fully erect posture with height (1.8 m) |
Omnivorous |
They had strong jaw with teeth close together. They were cave dwellers, made paintings and carvings in the caves. They developed a culture and were called first modern men. |
8. |
Homo sapiens sapiens |
1200-1600 cm3 |
Fully erect posture, height (1.5-1.8 m ) |
Omnivorous |
They are the living modern men, with high intelligence. They developed art, culture, language, speech, etc. They cultivated crops and domesticated animals. |
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 4: Try to trace the various components of human evolution (hint: brain size and function, skeletal stru....
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