Mosquitoes and cockroaches are both insects, but they have different reproductive strategies.
Reproduction in mosquitoes:

• Female mosquitoes are the ones that feed on blood and are responsible for reproduction. After mating with a male mosquito, the female mosquito lays her eggs on the surface of standing water or moist soil near a body of water.
• The eggs hatch into larvae, which are aquatic and feed on small organisms in the water. The larvae go through several molts, shedding their skin as they grow.
• Eventually, the larvae develop into pupae, which are non-feeding and do not move around much. The pupal stage is a transitional stage between the larval and adult stages.
• After a few days, the adult mosquito emerges from the pupa and is ready to mate and lay eggs.

Reproduction in cockroaches:

• Cockroaches have a more direct reproductive process, with males and females mating and laying eggs.
• Male cockroaches use pheromones to attract females and initiate mating. The male transfers sperm to the female during mating.
• The female cockroach carries the fertilized eggs in an egg case, called an ootheca, until they are ready to hatch. The ootheca can contain up to 50 eggs.
• After hatching, the immature cockroaches, called nymphs, resemble adult cockroaches but are smaller and lack wings. Nymphs molt several times before reaching adulthood.

Both mosquitoes and cockroaches have the ability to reproduce quickly and in large numbers, which can be a problem in situations where they are considered pests. Mosquitoes can spread diseases such as malaria, dengue fever, and Zika virus, while cockroaches can contaminate food and trigger allergies in some people.