Which of the following are motile zooids in cnidarians?

Related Mcqs:

Due to which property of Adiantum and example of Filicinae is called Maidenhairfern________________?

A. Its short thick branched horizontally growing rhizome B. Fibrous adventituous roots arise from the lower side of rhizome C. Shows heteromorphic alternation of generation D. Stipe (stalk) and rachis of leaf have black smooth and shiny hair like structures...

At the induction of action potential opening of Na+ gate with influx of Na+ is a ___________ processes?

A. Active transport B. Passive transport C. Diffusion D. none of these...

At which times there is no net gaseous exchange between leaves and the atmosphere.

A. Day time. B. Night time. C. Dawn & Dusk. D. Mid night....

The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.

A. 10 ml B. 20 ml C. 30 ml D. 40 ml...

Which of the following statement about osteoporosis is incorrect.

A. It results from estrogen deficiency. B. Bone eating process takes over bone formation process. C. There is reduction of bone mass and change in chemical composition of the matrix D. It is common in old age....