Answer:
Parasites must overcome host immune system.
Temperature.
Stable transmission.
Ability to attache to a host or find a suitable host.
Step-by-step explanation:
Parasites are organisms that live Andy survive in a host. They feed on the host resources and in turn causing infection, harm, destruction or death of hosts.
Parasites faced challenges in their quest to inhabit biotic environment.
One of is the host immune system. Some host have strong immune system and can resist parasites invasion.
Temperature. The body temperature of some hosts is not suitable for the living conditions of the parasites.
Some parasites have face difficult challenges in have a stable transmission of disease.
Finding suitable host to survive is another challenges faced by parasites. Some parasites find it difficult to find suitable host.