State the main morphological changes that occurred in the ancestors of

1.	State the main morphological changes that occurred in the ancestors of modem man.
Answer» The following main morphological changes occurred in the ancestors of modem man. • Narrowing and elevation of nose. • Formation of chin. • Reduction of brow ridges. • Flattening of face. • Reduction in body hair. • Development of curves in the vertebral column for erect posture. • Formation of bowel-like pelvic girdle with broad ilia (pi. of ilium) in support of viscera. • Increase in height. • Attainment of erect posture and bipedal locomotion. • Enlargement and rounding of cranium. • Increase in brain size and intelligence. • Broadening of the forehead and with vertical elevation.

State the main morphological changes that occurred in the ancestors of modem man.

Answer»

The following main morphological changes occurred in the ancestors of modem man.

• Narrowing and elevation of nose.

• Formation of chin.

• Reduction of brow ridges.

• Flattening of face.

• Reduction in body hair.

• Development of curves in the vertebral column for erect posture.

• Formation of bowel-like pelvic girdle with broad ilia (pi. of ilium) in support of viscera.

• Increase in height.

• Attainment of erect posture and bipedal locomotion.

• Enlargement and rounding of cranium.

• Increase in brain size and intelligence.

• Broadening of the forehead and with vertical elevation.