Question

The difference between male and female anopheles is shown in
(A)Proboscis
(B)Wings
(C)Antennae
(D)Size

Answer 1

Male and female anopheles mosquito defers in their feeding pattern and the structure of their feeding parts. When the female needs protein to feed their eggs, the male ones feed upon nectar from flowers.

Complete answer:
The difference between male and female Anopheles mosquitoes is shown in the structure and use of Proboscis.
Unlike the female anopheles mosquito, the male ones don’t feed upon mammalian blood but use their proboscis or feeding tube to drink nectar from flowers. Their Proboscis is wider and more feathery when viewed under magnification than the female ones.
On the other side, female anopheles need protein to feed her developing eggs therefore, they search for mammals including humans for blood. Their proboscis is long and thin and relatively smooth compared to males.

Additional Information:
Anopheles mosquito is the main vector that transmits human malaria. One of these mosquitos, named Anopheles Gambians, is a widely known vector because of its predominant role in the transmission of the Plasmodium falciparum, the most dangerous malaria parasite species to humans.

So, the correct answer is "Proboscis".

Note: Most of the Anopheles mosquitoes are crepuscular which means they are active at dusk or dawn and sometimes nocturnal. Some are endophagic whereas others are exophagic. Some are endophilic and others are exophilic. A very interesting fact is that the male mosquitoes strictly cannot feed on blood as it can be toxic to him and even kill him in a few days. But females can live on sugars for energy but the blood is required necessarily.