__________ is essential for the formation of hemoglobin.

8 years ago

A. Calcium B. Iron C. Water D. Carbohydrates

Blood is carried towards the heart by __________?

8 years ago

A. Arteries B. Capillaries C. Veins D. none of these

Sythetic insulin from pork was formed by which technique?

8 years ago

A. Biotechnology B. Social biological techniques C. Parasitology D. Both a and c

On wound __________ fight foreign particles, like bacteria?

8 years ago

A. White Blood cells B. Red Blood Cells C. Platelets D. Plasma

The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?

8 years ago

A. Molecular biologists B. Microbiologists C. Freshwater biologists D. Social biologist

The study of fossils is called?

8 years ago

A. Environmental Biology B. Historical biology C. Palaeontology D. Social biology