. Write the vestigial structures which is present in other animals indicating the occurrence of organic evolution.

The vestigial structures are :

i. Hind limbs and pelvic girdle in python.

ii. Splint bones (Remnants of 2nd and 4th toes) in horse.

iii. White spot in frog's head (a vestige of 3rd eye).

iv. 2nd and 5th toes in cattle.

v. Wings in flightless birds.

vi. Vestigial wings in female Blatta orientalis cockroach

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