Which of the following is NOT an egg-laying pattern of mosquitoes?

The option indicating that mosquito eggs are laid in clusters under rocks is not a recognized egg-laying pattern for mosquitoes. Mosquitoes typically have specific habitats and behaviors related to where they lay their eggs, which are adapted to ensure the hatching of their young in suitable environments.

Eggs laid singly on the water surface are characteristic of certain mosquito species, especially those that prefer to have their eggs taken directly by water, allowing them to hatch upon contact with moisture. Similarly, the behavior of gluing eggs together to form rafts is observed in many mosquito species, particularly those that thrive in temporary water bodies where the rafts can float.

Eggs laid out of the water, although less common, can occur as certain species are capable of laying eggs on moist soil or surfaces close to water bodies. These eggs will remain dormant until the area is flooded, which is a survival strategy that allows them to take advantage of transient water sources.

In contrast, the idea of mosquitoes laying eggs in clusters under rocks does not align with established scientific observations of mosquito reproductive behavior. Instead, mosquitoes seek environments that will provide adequate moisture and protection for their eggs, which is why the process described in that option does not fit with their known reproductive patterns.