NEET BIOLOGY

Detailed explanation-1: -Fast reproduction produces increase the number of parasite offspring but poses extra burden on host and makes the host survival harder. This makes option B incorrect. Similarly, sticking too long to a host decreases its survival chances and hence, parasite keeps switching the host over time.

Detailed explanation-2: -A successful parasite will be able to find an appropriate host, embed itself without detection, reproduce, and gain nutrients without causing death to the host. The success of a parasite depends on how long it can thrive on a host.

Detailed explanation-3: -The answer likely has to do with the wealth of available opportunities they had to branch out, habitat-wise. For a parasite, every animal on earth represents a potential place to live, and within each of those animated habitats exists a surplus of additional microhabitats to colonize.

Detailed explanation-4: -The parasite should have high searching capacity of host and utilize the host. 2. It should be fairly host specific in feeding rather than polyphagous i.e. restriction in feeding habit to a relatively few species. This implies high degree of adaptation.

Detailed explanation-5: -A parasite is an organism that lives at the expense of another organism-the host. In general, parasites share the following features: Parasites are usually smaller than their host. Parasites use both invertebrate and vertebrate hosts.