Biology Past Questions and Answers

Which of the following is INCORRECT? The prothallus of a fern

Which of the following cell constituents is NOT common in both plants and animals?

The character-producing factors in living organisms are

A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitates is formed which on gentle heating turns red. The food substance is

The mammalian organ through which nourishment and oxygen diffuse into a developing embryo is called