PATHOLOGY

Detailed explanation-1: -An intermediate host often acts as a vector of a parasite to reach its definitive host (where it will become mature). Thus, the intermediate host serves only as a site wherein the parasite spends a particular developmental stage of its life cycle (i.e. larval stage).

Detailed explanation-2: -In terms of types of reproduction, the parasite will perform its reproductive maturity while inside the definitive host. In contrast, the asexual phase of the parasite occurs while living in the intermediate host.

Detailed explanation-3: -Primary host is the host in which the parasite undergoes sexual reproduction or the host that harbors the adult stage or sexually mature stage of a parasite.

Detailed explanation-4: -Of the parasites that are transmitted by intermediate hosts, the best known are cestodes (tapeworms), trematodes (flukes), nematodes (roundworms), and acanthocephalans (thorny-headed worms), along with some protists.