What is a coelenteron?

What is the electron transport system, and what are its functions?

What is concentration quotient and what is its significance?

Gastrovascular cavity or coelenteron partitioned in

Diploblastic, multicellular animals with coelenteron.

Body cavity of Hydra/coelenterata is known as (a) Coelenteron (b) Pseudocoel (c) Enterocoel (d) Haemocoel

What is a couple? What is its action?

What is hydrogenation? What is its industrial application?

What is an electric current? What is responsible for it in solids and in liquids?

What is a pseudocoelom ? What are the advantages of having a coelom ? What two groups of animals have a pseudocoelom ?

What is an error? What are constant errors?