Jawless fish probably evolved around 500 mys. True/False

Jawless fish probably evolved around 500 mya. True/False

Jawless fishes probably evolved

Jawless fishes probably evolved

(i) _____can be used as industrial pollution indicators. (ii) By the time of _____ mya, in vertebrates were formed and active (iii) Jawless fish probably evolved around _____mya. (iv) In 1938, a fish caught in south Africa happened to be a ______which was through to be extinct. (v) The first mammals were the _____. (vi) About_____mya, the dinosours suddenly disappeared from the earth.

During evolution, first jawless fish probably evolved before how many years ?

Ichthyosaurs evolved around

Ichthyosaurs evolved around

Synapsides evolved around

Synapsides evolved around