That is the definition of a parasite. I believe. They have to have a host to live.
Im pretty sure anyway
If a parasite kills its host too quickly, it also kills itself as it cannot live without the host. The parasite must at least leave the host alive until it has reproduced and had a chance for its offspring to find other hosts.
If a parasite kills its host too quickly, it also kills itself as it cannot live without the host. The parasite must at least leave the host alive until it has reproduced and had a chance for its offspring to find other hosts.
No, the rock is not alive. Both host and parasite must be alive.
According to botany the parasite live on live plant. when the plant dies parasite also will dies. but the saprophyte though the plant dies it will live.
A pathogen that must live in or on a host to survive is known as an obligate parasite. Examples include viruses, certain bacteria, and protozoa that rely entirely on host organisms for nutrients and replication. Unlike opportunistic pathogens, obligate parasites cannot complete their life cycle without a host, making them entirely dependent on their hosts for survival.
Parasites are animals and plants that live by causing harm to their host. A parasite must get something from the host to live. A mosquito is a parasite because it must have blood from another animal to reproduce.
A pathogen that must live in or on a host to survive is known as an obligate parasite. These organisms rely entirely on their host for nutrients and reproduction, often causing harm in the process. Examples include certain bacteria, viruses, and protozoa that cannot complete their life cycle outside of a host organism. Obligate parasites can lead to various diseases in their hosts, showcasing their dependence on living hosts for survival.
A successful parasite can source all its needs from the host animal. A VERY successful parasite provides some benefits to its host so that there is real incentive to have a parasite. This is called symbiosis. Successful parasites should/must: Withstand the unfavorable condition, reproduce within the host, egg/cysts easy to leave outside host, locate new host, enter the host simply, and avoid killing the host.
It takes about 8-30 days for the malaria parasite to complete its growth in the mosquito before it is capable of infecting a human host. This period allows the parasite to develop in the mosquito's salivary glands, where it can be transmitted to humans when the mosquito bites.
One example of a parasite would be the parasitic plant Cuscuta which is a yellow colored climber plant. It produces special kinds of outgrowths on this stem called haustoria. These haustoria penetrate the tissue of the host plant and connects to the vascular tissue. It then absorbs the required nutrients from the host plant.
They are obligate in the sense that they cannot replicate outside of a host cell. To make a copy of itself, a virus must first enter a cell (intracellular), hijack the machinations of said cell (parasitic behavior) and then copy itself.
The only criteria are: * they must be a member of the British commonwealth * they must have the size and capacity to host the games which will attract 5,000+ competitiors and many times this in spectators etc