Its when insects enter your scalp and start chewing your hair.
The symbiotic relationship between a human head and lice is parasitism. This is because the lice get food and shelter but the head is itchy.
Yes, head lice are living creatures which get into your hair through physical contact - they 'land' or 'crawl' onto your hair. That it how you get head lice. Therefore, you can still get head lice when you are ill because the illness makes no difference to your hair.
lice nits are little tiny things on you head or scalp that when you see them they have already hatched or died and sometimes the little bugs are still in the nits. lice eggs, of which saying, can sometimes be the sizes of pinheads or so.
a water fly is a fishing rig that a nymph is the step after a nit(head lice egg)
The answer is parasitism! Becuase the lice harms the human and only the lice benifits!
The doctor will need to distinguish between head lice and dandruff; between body lice and scabies (a disease caused by skin mites); and between pubic lice and eczema.
There isn't any different between head lice and pubic lice but how they look.
You get head lice by putting your head by someone who already has head lice
Pediculus humanus capitus (head lice), Pediculus humanus corporis (body lice), and Phthirius pubus (crab lice) are the three variants in humans. I believe the difference is that they are different sub-species.
Head lice is actually already the plural form. The singular is head louse.
No, no connection between the two whatsoever.