Maybe say something along the lines of " parasites are complex and very harmful" and build off of that statement
Innate behavior is very often considered to be th eresult and a consequence of learning which was done in the earliest stages of life; womb, infancy up to childhood possibly. Most of the time, this learning has to either be model learning of reinforcement learning where the organism or child, if we're talking about human beings, get feedback once they do something; either negative - diminishes the behavior, or positive - increases it.
From the mother through the placenta
<span>It would die as harmful substances entered the cells.</span>