What do you mean by phenotype and genotype of an individual? Explain.

Sequentially arrange the different species of man from primitive to modern man.

(Neanderthal man, Homo habilis, Homo erectus, Homo sapiens)

Biotechnology, the modern science in biology, has helped in producing different types of products. One of the following groups does not have a product of biotechnology.

Pick out and give reasons.

i) enzymes, organic acids, steroids, vaccines

ii) vaccines, enzymes, antibiotics, inorganic acids

iii) antibiotics, hormones, steroids, vaccines

iv) steroids, enzymes, antibodies, vaccines

What are variations? Mention their types.

Who proposed the theory of Natural Selection? Mention the two principles of this theory.