Differentiate between Lamarck's Theory and Darwin's Theory.

Given alongside are two figures (A and B) representing the two stages of evolution of human beings.

Answer the following:

(a) Mention any two contrasting characters between the two stages.

(b) Write all the stages of human evolution in their correct sequence.

(c) State any two characteristic features of stage B.

Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.

Answer the following.

(a) What name has been given to this phenomenon?

(b) Give the common name and the scientific name of the insect involved in this phenomenon.

(c) Briefly mention why the changes shown in the two figures appeared.

(d) The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.

(i) Name and explain the said theory.

(ii) Give the name of the scientist who gave this theory.

Observe the figure given below and answer the questions that follow:

(a) What is the figure depicting ?

(b) What was the reason that the giraffe stretched their neck and forelimbs ?

(c) What is the name of the theory that is being depicted in the figure ?

(d) Who explained the theory ?

(e) What is the conclusion of this theory ?