Mention the evolutionary significance of the following organisms :
(i)Shrews (ii)Lobefins (iii)Homo habilis (iv)Homo erectus

Mention the most significant function/role of the following: Organ of Corti

Mention one significant function of the following: (i) Embryo sac (ii) Synergids

Differentiate between Homo habilis and Homo erectus.

Mention any two differences between Homo habilis and Homo erectus

Write the name of causal organism of the following diseases : (i) Malaria (ii) Rabies (iii) Influenza (iv) Tuberculosis (v) Typhoid

Name the digestive juices secreted by the following organs : (i) Mouth (ii) Pancreas (iii) Stomach (iv) Small intestine

(a) Mention the role of the following organs of human male reproductive system : (i) Testis, (ii) Scrotum, (iii) Vas deferens, (iv) Prostate glands. (b) What are the two roles of testosterone?