What are at least three ways a toxin can enter an animals body? ?

The three ways on how toxins can enter an animal’s body is:

1.       Oral Entry. This is through the mouth- the food they eat or the liquid they drink.

2.       Derma Entry. This is through skin and the eyes.

3.       Respiratory Entry. This is through the mouth and nose.

i think the miocene epoch spans the time from 23 million to 12 million years ago.

is this a psat question, if so do not cheat try your best.