How many hosts does the organism have during its lifecycle?
Parasites with direct life cycles spend most of their adult lives in one host, known as the parasitic stage, with their progeny transmitted from one host to another, known as the free-living stage.
Which parasite requires two hosts for the completing its life cycle?
The parasitic fungi that require two or more hosts to complete their life cycle are called Heteroecious fungi. The heteroecious rust fungi are Puccinia graminis, Puccinia coronata.
What is the life cycle of parasites?
Parasites have either a direct life cycle, in which they require only one. host, or an indirect cycle, in which one or more intermediate hosts are. required. An intermediate host is the one in which the young parasite. undergoes development leading to the stage which is infective to the final.
When more than one host required to complete the life cycle is known as?
An indirect life cycle is a type of a life cycle wherein a parasite is transmitted from one host to another by using a vector or by an intermediate host of another species. A parasite with an indirect life cycle would therefore require more than one type of host species to complete their life cycle.
What stages do life cycles include?
There are five steps in a life cycle—product development, market introduction, growth, maturity, and decline/stability. Other types of cycles in business that follow a life cycle type trajectory include business, economic, and inventory cycles.
What is the life of parasite completed in two hosts called?
Intermediate Host Definition
|Definitive Host||Intermediate Host|
|Parasite spends a longer duration of its life cycle in this host.||Parasite spends a shorter/transient duration of its life cycle in this host.|
Which of the following parasite requires two intermediate hosts?
Like many other parasites, these trematodes have a three host life cycle involving two intermediate hosts and one definitive host.
Why do some parasites require intermediate host to complete their life cycle?
Required by some parasites to complete their life cycle, Advantages of an intermediate hosts include: increasing the spread of the parasite & protecting the parasite from spending too much time in the environment.
What is a definitive host in the life cycle of a parasite?
Definitive host. Host in which the parasite reaches the adult stage or undergoes sexual reproduction. If there is no sexual reproduction in the life of the parasite, the host most important to humans is the definitive host.
What is the life cycle of tapeworm?
All tapeworms (cestodes) cycle through 3 stages—eggs, larvae, and adults. Adults inhabit the intestines of definitive hosts, mammalian carnivores. Several of the adult tapeworms that infect humans are named after their main intermediate host: The fish tapeworms.