If you focus the image of a distant object, whose shape is given
below, on a screen using a convex lens,
the shape of the image of this object on the screen would be:
C.
What is DNA copying? State its importance.
(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.
Give the respective scientific terms used for studying:
(i) The mechanism by which variations are created and inherited and
(ii) The development of new type of organisms from the existing ones.
