When leaves stand at right angle to next upper and lower pair , then this phyllotaxy is called

Can two right angles form a linear pair?

Calotropis is an example where the leaves of successive nodesare at right angle to previous and next different nodes.Such phyllotaxy is know as…………. .

The part of the leaf present between upper and lower epidermis is called as –

The difference between upper and lower boundaries of class is called______

The tissue present between the upper and lower epidermis of a dicot leaf is called _________ .

The tissue present between the upper and lower epidermis is called .........

In a plant, leaves are placed at right angles to the direction of light source and are called ____phototropic.