Question

Female mosquitoes sucking human blood at intervals are
A) Permanent parasites
B) Endoparasites
C) Semi-parasites
D) Intermittent parasites

Answer 1

Hint:This type of parasites is those that visit the host organisms at intervals.Leeches, mosquitoes, tsetse flies, fleas, etc.are examples of this type of parasites.

Complete answer:
A mosquito is a member of the Diptera order group of some 3,500 species of small insects.Mosquitoes have a slim segmented body, a wing pair, a halter pair, three pairs of long legs like the fur, and extended body parts.Eggs, larva, pupa, and adults form the mosquito life cycle.Eggs are positioned on the surface of the water; they hatch moving larvae by feeding organic materials and algae.Most of the adult females have tube-like mouths that can perforate the host's skin and feed on blood containing iron and protein required to create eggs.Thousands of mosquitoes feed on different hosts' blood - vertebrates, birds, amphibians, reptiles, humans, and some fish, with some invertebrates and other arthropods, mostly.
>A parasite is an organism which lives on or inside the host organism and which obtains its food at its host's expense.
>Endoparasites are parasitic organisms, like tapeworms, flukes and protozoa of vertebrates, which reside in their hosts' tissues and organizations.
>Hemi or partial or semi parasites are referred to as the parasite which receives a part of their food only from the host.
>A parasite is known as intermittent parasites that visit its host at intervals.These mosquitoes suck the blood of man and damage them with their vectors.And it feeds at regular intervals, so that the mode is a parasitism intermittent and they are intermittent parasites.

Thus, the correct answer is option D.i.e., Intermittent parasites.

Note:Parasites are organisms which live or feed their food, nutrition, etc.on other organisms.They show the interaction between the population, called the parasitism, which damages one organism and benefits the other.