Answer:
D. all of the above
Explanation:
Australopithecus (first ape-man): Australopithecus is considered as the connecting link between apes and man as they shared the characteristics of both. The fossil records shows that they appeared around 5 million years ago. <em>Australopithecus africanus</em> was about 1.5 meters high and had human as well as ape like features. It was with bipedal locomotion, omnivorous in their diet and had erect posture. It had human like teeth with small canines and large chewing teeth. The brain was more like an ape with the brain capacity of about 500 cc similar to that of an ape. He lived in caves, had projected brow ridges with no chin. Its believed that <em>Australopithecus africanus</em> gave rise to <em>Homo habilis</em> about 2 million years ago.
The earliest species of Homo genus is <em>Homo habilis</em>. They were skill full man also called as handy man or the tool maker. He had erect posture with bipedal locomotion. The teeth were like modern man. He was skilled and made tools with stones. Slowly with evolution the prognathous face changed to orthognathous in cro magnon (<em>Homo sapiens fossilis</em>).
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They are found in the chromosomes
Answer:
In Darwinian terms, the fittest individuals of a species are those that attracts the most mates and leave the greatest number of reproductive descendants.
Explanation:
Darwin's evolutionary theory have mentioned "Survival of the fittest'' that described the mechanism of natural selection.
The survival of fittest means the maximum rate of reproductive success.
Those individuals that leaves maximum copies of it's offspring which are actively successful in reproduction and transmit it's features to the next generation are fittest individuals.
Charles Darwin mentioned this on his book'' Origin of species'' in 1868
Survival of fittest is the alternative form of natural selection.
Survival of fittest ensures the chance to improve phenotypic characters.
