Describe the following: (a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.

The stomatal pore is guarded by two kidney shaped guard cells. Name the epidermal cells surrounding the guard cells. How does a guard cell differ from an epidermal cell ? Use a diagram to illustrate your answer.

Briefly describe the structure of the following : (a) Brain (b) Eye (c) Ear

Draw labelled diagrams of the following : (a) Neuron (b) Brain (c) Eye (d) Ear

Is it right to say that sin (A+B) =sin A +sin B ? Justify your answer.

Can two different compounds have same molecular formula ? Illustrate your answer with two examples.

Identify the following coelom shown in the diagrams A, B and C