What are the phyletic characteristics present in adult Homo sapiens?

What are the phyletic characteristics
present in adult Homo sapiens?

Expert Solution

Ans. - In modern species back of the skull is rounded and indicates a reduction in neck muscles. modern Homo sapiens skulls have a short base.

orbits (eye sockets) are square rather than round. These are in accordance to the nature, these changes were due to evolution to get adapt according to Nature.

There are a number of trends in the evolution of the proto-hominins to modern Homo sapiens.

The forward movement of the foramen magnum.

A reduction in the size of the canines.

An increase in the size of the molars.

Disappearance of the diastema (gap between the incisors and canines).

An increase in cranial capacity.

A decrease in prognathism (jutting forward of the bottom part of the face).

Thinning of the bone.

Rounding of the skull.

The most significant trend in the evolution of modern man (Homo sapiens) from the ancestors is increasing brain capacity. The human species developed a much larger brain than that of other primates, over twice the size of that of a chimpanzee or gorilla.

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gladiator answered 2 years ago

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