PTS Biology Mcqs Online Test 6

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

Communities are ________ collection of organisms?

The heart is enclosed in a membrane called?

From right ventricle blood is pushed into?

Biometry is the application of_______ in biology?

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

Biological organization is?

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

Operculum is present in?

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