Biology Mcqs Online Test 6

The number of species of organisms currently known to science is?

Biometry is the application of_______ in biology?

The arrangement of ________ speaks of the division of labour within cell?

In which animal respiratory surface are found in more than one organ?

Operculum is present in?

Biological organization is?

The heart is enclosed in a membrane called?

Communities are ________ collection of organisms?

From right ventricle blood is pushed into?

What is the branch of biology in which structure and function of tissues are studied?