A patient is down with Amoebiasis. List the symptoms that confirm this infection. Name the causative pathogen.

The above diagram shows human male reproductive system (one side only).

(a) Identify ‘X’ and write its location in the body.

(b) Name the accessory gland ‘Y’ and its secretion.

(c) Name and state the function of ‘Z’.

How did industrialization play a role in Natural Selection of light and dark coloured moth in England?

OR

What do you infer from the resemblance between flying squirrel and flying phalanger with reference to their evolution?

(a) Differentiate between a template strand and coding strand of DNA.

(b) Name the source of energy for the replication of DNA.

Explain succession of plants in xerophytic habitat until it reaches climax community.