Energy is required in:

The increase in apparent size of an object:

Which of these muscles are voluntary in action?

Blood is an example of:

Secondary wall is made up of:

Resolution of human eye is:

Tracheid are present in:

Resolution of light microscope?

The cells that contribute in coordination of the body:

Resolution of electron microscope is:

Golgi was awarded Nobel Prize in:

Which of the following muscles are involuntary in action?

Primary wall is made up of:

Cardiac muscles are present in the walls of:

Which one of the following is not an animal tissue?

Cell walls of sclerenchyma tissues are hardened with:

Human body is made up of types of cells:

Cells were first described by a British scientist?

A plant tissue composed of more than one type of cells:

Companion cells are found in:

The epidermal tissues contain:

All of these are found in cell membrane except:

Who discovered nucleus in cell?