Advertisements
Advertisements
Question
Distinguish between Homo habilis and Homo sapiens sapiens (Posture).
Solution
Homo Habilis | Homo sapiens sapiens (Posture) | ||
1. | Bipedalism | Bipedal gait; slightly more erect than Australopithecus. | Perfect bipedal locomotion. |
2. | Cranial capacity | 680 to 735 cm3 | 1450-1600 cm3 |
3. | Size of canine teeth | Small canines, almost like that of modern man. | Small canines; teeth closer to each other; wisdom teeth present. |
4. | Forehead and brow ridges | Forehead receding with an ape-like head. | Steep forehead; reduced brow ridges; flattened face. |
5. | Development of chin | Almost no chin | Prominent chin; snout disappeared. |
6. | Body hair | Hair on the body is reduced. | Highly reduced body hair. |
7. | Height and posture | 120 to 150 cm (4·5 to 5 ft); bent kneed posture. | Upto 190 cm; fully erect. |
RELATED QUESTIONS
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?
In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a ‘better’ body design? Why or why not?
State whether the following statement is true or false :
Human beings have evolved from chimpanzees.
Fill in the following blank with suitable word :
The scientific name of all human beings is ..............
Given below are two stages in the evolution of man. Study them and answer the questions that follow:
Mention two characteristic features each for two stages.
Describe modern man.
The modern day Human species has evolved from its earliest ancestors who lived in ______.
The process of evolution of a species whereby characteristics that help individual organisms to survive and reproduce are passed on to their offspring and those characteristics which do not help is not passed on is called ______
Among the human ancestors, the brain size was more than 1000 cc in ______.
Arrange and rewrite the terms in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Australopithecus, Cro-Magnon, Homo erectus, Neanderthal man.