The first form of life were not

(1) Single cells

(2) in water environment only

(3) originated till about 2000 million years ago

(4) Both A and B

(1) All living organisms were created as such

(2) Diversity was same since the creation.

(3) Diversity will increase as the changes in the environment come.

(4) The Earth is about 4000 years ago.

(1) A study of fossils in different sedimentary layers indicates the geological period in which they existed

(2) The new life forms have arisen at same time in the history of Earth

(3) Fossils are remains of hard parts of rocks showing the presence bof carbon in life forms

(4) Both B and C

(1) Karl Ernst Von Baer

(2) Ernst Heckel

(3) Charles Darwin

(4) Alfred Wallace

(1) b)-a)-g)-f)-e)-d)-c)

(2) e)-b)-g)-a)-f)-c)-d)

(3) g)-a)-f)-b)-e)-d)-c)

(4) c)-a)-f)-g)-d)-e)-b)

(1) Triceratops

(2) Archaeopteryx

(3) Pteranodon

(4) Brachiosaurus

(1) Stegosaurus

(2) Tyrannosaurus

(3) Brachiosaurus

(4) Pteranodon

(1) Common ancestry

(2) Diverse ancestry

(3) Analogy

(4) Convergence

(1) Camouflage causes the white moths to get caught by predators more even in rural areas during industrialisation.

(2) During industrialisation, white variant of moths got wiped out completely in urban areas.

(3) During industrialisation, lichen will increase in number.

(4) In a mixed population, those that can better adapt, survive and increase in population size.

(1) Bandicoot

(2) Numbat

(3) Wombat

(4) Bobcat