Anopheles mosquito eggs have which distinct feature?

The distinct feature of Anopheles mosquito eggs is their lateral extensions that serve as floats. These floats help the eggs to remain on the surface of the water, enabling them to be more accessible to the aquatic environment they require for hatching. The structure of these eggs, including the floats, is designed to aid in the survival and effective positioning of the eggs in their habitat. This adaptation is crucial for the development of the larvae once the eggs hatch.

In contrast, the other features mentioned do not accurately describe Anopheles mosquito eggs. They are not spherical in shape as stated in another choice; rather, they have a more elongated appearance. Additionally, while mosquito eggs may vary in color and texture, Anopheles eggs are not characterized by being particularly dark or spiky. They are also typically laid individually rather than in clusters, which further differentiates them from the choices provided. Understanding these characteristics is key for effective mosquito control and management.