1 The kidneys are used to remove excess water and ions from the blood. 2  These are then expelled as urine. 3  The kidneys perform a vital role in homeostatic regulation in mammals, removing excess water, salt, and urea from the blood.
Ectoparasites Parasites that live on the outside of the host, either on the skin or the outgrowths of the skin, are called ectoparasites. They are directly transmitted between hosts.
The tiny hairs on a spider's body that are very sensitive to vibrations. setae: An organism that gets its nourishment by attaching itself to another organism and continuously taking in its host's body fluid. parasite: All insects have how many distinct body parts? three: How many arthropods belong to the class of insects? Over three-fourths