A scientist observed the formation of hundreds of maggots and many flies on a rotting meat slice exposed to the environment. What most likely formed the maggots?

A. Water vapor present in the surrounding air

B. Eggs of flies in the surroundings

C. Nutrient crystals in the meat

D. Oxygen in the environment

The correct option is B.

Female flies are the one that are saddle with the responsibility of laying eggs during reproduction. The female usually look for a warm and moist place that have abundance food source for laying the eggs. The eggs laid by by the flies transformed into larva, which is also called maggots and the maggots turn into flies.