Define ectoparasite and endoparasite and give suitable examples.
Parasites that feed on the external surface of the host organism are called ectoparasites.
The most common examples of this group are the lice on humans and ticks on dogs.
Endoparasites are those that live inside the host body at different sites (liver, kidney, lungs, red blood cells, etc.).'
The human liver fluke (a trematode parasite) is an endoparasite.
Name important defence mechanisms in plants against herbivory.
Match the items in Column $I$ with those in Column $II$:
Column - $I$ | Column - $II$ |
$(a)$ Herbivores-Plants | $(i)$ Commensalism |
$(b)$ Mycorrhiza-Plants | $(ii)$ Mutualism |
$(c)$ Sheep-Cattle | $(iii)$ Predation |
$(d)$ Orchid-Tree | $(iv)$ Competition |
Select the correct option from following
. Explain parasitism in detail
Give the scientific names of any two microorganisms inhabiting the human intestine.