Only 10% of them are, occasionally, parasite.
All leeches must live off the blood of other animals to keep themselves alive--it's how they eat-- which does make them parasites.
No, leeches are parasites.
Yes, leeches are parasites.
I would be more willing to say that leeches are parasites, not predators.
No; leeches aren't vectors of dog true parasites but they can still infect them with other microorganisms like viruses.
Fleas, ticks and leeches are 3 common parasites
No; only 10% of them are, occasionally, parasite.
Leeches are known as parasites but they can be useful in medicine. After surgery, some doctors use leeches to prevent dangerous swelling near a wound. Also, leeches make a useful chemical that people can use.
Tapeworms, fleas, leeches, and most viruses, and some bacteria all fall under the label of parasites. Parasites benefit from another organism at that organism's expense.
They are considered to be parasites
Ducks eat Leeches. Leeches eat Aquatic Insects and Slugs. Aquatic Insects and Slugs eat Aquatic pants.
They were seen as irrelevant window dressings, leeches and parasites.
Parasites live off of living organisms. They include things such as lice, fleas, and fungus. Saprophytes, on the other hand, live off of decaying matter, and would include fly larvae (maggots).