Some are. As Arachnid covers quite a lot of beasties, amblypygians to scorpions to tarantulas, most are not. However, ticks and mites are arachnids so yes, some are.
Worms are normally not external parasites, but internal parasites. External parasites include different arthropod species like ticks, fleas, lice, mosquitos....
The two types of parasites are:- 1) Ectoparasites :- Parasites which live on the external surface of the host are called ectoparasites. Examples :- 1. Animals - Ticks, Mosquitoes, Bed-bugs, Head louse, Leeches etc. 2. Plants - Cuscuta, Loranthus 2) Endoparasites :- Parasites living within the host are called endoparasites. Examples :- 1. Animals - Liverfluke, Tapeworm, Ascaris, Plasmodium 2. Plants - Many fungi.
ectoparasites
Internal parasites in cattle can be worms in the intestinal tract and external ones would be ticks, flies and fleas on their skin.
Ectoparasites are external parasites. Lice or fleas are examples.
Sheep are normally dipped after shearing to treat for external parasites such as lice.
Of course not; Arachnids are simply 8-legged creatures such as spiders. The only things that I can think of that "harm their hosts to help themselves" are either bacteria or certain parasites.
they touch little boys
External parasites are fleas, ticks, ear mites, lice, mange mites, and fly bots. Internal Parasites are heartworms, tapeworms, roundworms, hookworms, and whipworms.
External parasites are fleas, ticks, ear mites, lice, mange mites, and fly bots. Internal Parasites are heartworms, tapeworms, roundworms, hookworms, and whipworms.
With a veterinary chemical product that is registered for use in goats to treat external parasites eg lice. These compounds may be either a spray, a pour-on, a dip or an injection.
Ticks are classified as arachnids, just like mites and spiders. They are parasites that attach themselves to other animals to feed on their blood.