Cats and dogs
An intermediate host is an organism in which a parasite undergoes part of its life cycle before moving to a definitive host to complete its development and reproduction. Intermediate hosts are essential for the continued survival and transmission of many parasites, providing an environment where specific developmental stages can take place.
Fish can get parasites that harm them. Dogs can also get harmed by heartworms those are parasites. Humans can also be harmed by parasites. there are many parasites that can affect people.
They enter when you eat Raw meat
One example of endoparasite is when dogs have heartworms. The heartworms are the endoparasite because they are living inside the dogs body. The heartworms are benifited, they are called the parasites, and the dog is harmed, it is called the host.
Definitive host (DH). A definitive host is an organism that hosts the adult (sexual) form of the parasiteIntermediate host (IH). An intermediate host is an organism that hosts the asexual form of the parasite (only when there is an obligatory passage through the host). Intermediate hosts can be divided into two groups:Passive IH (molluscs in the case of Schistosoma)Active IH (tsetse fly in the case of trypanosomes)Source: http://www.icp.ucl.ac.be/~opperd/parasites/types3.htm
Cow: Intermediate host to the larval stages of beef tapeworm (Taenia saginata)
a free-swimming larval stage in which a parasitic fluke passes from an intermediate host (typically a snail) to another intermediate host or to the final vertebrate host
Host. Host.
A host organism provides a habitat for a parasite, allowing it to live, feed, and reproduce at the expense of the host's own resources and well-being. The relationship between a parasite and its host is often harmful to the host organism.
The organism from which a parasite obtains nutritional needs is called a host. The host is a food source and a home for the parasite.
The tsetse fly is an intermediate host in the life cycle of Trypanosoma, a parasitic protozoan that causes diseases like African trypanosomiasis in humans and animals. Trypanosomes develop and multiply in the gut of the tsetse fly before being transmitted to a mammalian host through its bite during a blood meal.
http://tinyurl.com/gdhosting