(a) Give the evidence that the birds have evolved from reptiles.
Insects, octopus, planaria and vertebrates posses eyes. Can we group these animals together on the basis of eyes that they possess? Justify your answer giving reason.

(a) Cite the evidence on the basis of which it is concluded that birds have evolved from reptiles. (b) Insects, Octopus, Planaria and Vertebrates also possess eyes. Can these animals be grouped together on the basis of the eyes they possess. Why or why not? Give reason to justify your answer.

Octopus, cockroach and frog all have eyes. Can we group these animals together to establish a common evolutionary origin. Justify your answer.

“Birds have evolved from reptiles.” Give palaentogical evidence in favour of this statement.

(i) Planaria, insects, octopus and vertebrates all have eyes. Can we group eyes of these animals together to establish a common evolutionary origin? Justify your answer. (ii) "Birds have evolved from reptiles". State evidence to prove the statement.

Can two numbers have 12 as their H.C.F. and 234 as their L.C.M? Give reason to justify your answer.