Question

Match the column I with the column II and select the correct option regarding parasitism

Column I	Column II
A. Ticks on dogs	1. Endoparasitism
B. Liver fluke	2. Brood parasitism
C. Cuckoo laying eggs	3. Ectoparasitism

• A. A - 1, B - 2, C - 3
• B. A - 3, B - 1, C - 2
• C. A - 1, B - 3, C - 2
• D. A - 3, B - 2, C - 1

Answer 1

The correct option is B A - 3, B - 1, C - 2

Parasitism is an interaction between two species in which one species (the parasite) is benefitted whereas the other (the host) on which the parasite depends is negatively affected.

It is of the following types:

• Ectoparasitism – In this type, parasites feed on the external surface of the host organism (Ecto - outside). Example - Ticks on dogs.
• Endoparasitism - The parasites living inside the body of the host at different sites are called endoparasites (Endo - inside). Example - Liver flukes that parasitise human beings.

Brood parasitism – It is a type of parasitism in which the parasitic bird lays its eggs in the nest of its host letting the host incubate them. The eggs of the parasitic bird have evolved to resemble the host’s egg in size as well as colour to reduce the chances of the host bird detecting the foreign eggs and ejecting them from the nest.

Example - Cuckoo laying eggs in the crow’s nest.