How many ear ossicles do we have?

In which of these structures is visual acuity the greatest?

What is the outer layer of the brain called?

To which of these colors are the cone cells of the eye unresponsive?

Which of these is not a characteristic of the iris?

How are impulses transmitted from one neuron to another?

The auditory meatus contains fine hairs. True or false?

Nerve impulses are transmitted from one neuron to another via which of these?