PTS Biology Mcqs Online Test 6

Communities are ________ collection of organisms?

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

From right ventricle blood is pushed into?

The heart is enclosed in a membrane called?

Biological organization is?

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

Biometry is the application of_______ in biology?

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

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

Operculum is present in?