A constant sore scalp is not normal and should be looked at by your doctor, to ensure that the sore scalp is not indicative of a underlying serious health condition. Some people keep a sore scalp and label themselves as tender headed and think nothing of it.
These are the four distinct stages in an average house fly's life: Egg: Depending on the size of a female house fly, she can lay up to 500 eggs in a three to four day period. Eggs are white in color and are usually less than half and inch in size. Larvae: Larvae are commonly referred to as maggots. Maggots emerge from the eggs within eight to 20 hours of being laid.
These stages move from eggs to larvae and pupae to adult. House flies have an incredible ability to reproduce, however, the fly lifespan is typically short. The life cycle of a fly begins with the egg. The female house fly can lay anywhere from 75 to 150 eggs in a batch. She can lay an estimated five or six batches of eggs during her lifetime, starting on average, about 12 days after reaching full maturity. Eggs take eight to 20 hours to hatch and reach the first of three larval stages.