Question

Anopheles eggs are:
a. Rounded with floats
b. Boat-shaped with floats
c. Rounded with floats
d. Boat-shaped without floats

Answer 1

Hint: Eggs hatch inside some days, with ensuing larvae outlay 9-12 days to become adults in tropical areas.

Complete Answer:
- Like all mosquitoes, anophelines undergo four stages in their life cycles: egg, larva, pupa, and imago(Adult stage). The primary 3 stages square measure aquatic and last 5–14 days, counting on the species and therefore the close temperature(surrounding temperature).
- The adult stage is once the feminine genus Anopheles two-winged insects acts as a protozoal infection vector.
- The genus Anopheles two-winged insects lays the boat-shaped eggs one at a time protrusive them along within the form of a raft.
- AN egg raft will contain from a hundred to four hundred eggs. In genus Anopheles egg, air bubbles square measure gift in between the higher ends that facilitate the raft in floating on water i.e eggs square measure boat-shaped with air floats.
- Hence genus Anopheles eggs square measure Boat formed with floats.

Hence option: b is the correct answer.

Note: Female Anopheles lay about 50 to 200 eggs at a time.Anopheles eggs are laid individually and float on the surface of the water.