Winter squash is an excellent source of vitamin A, vitamin C, alpha-carotene and beta-carotene. It is also a very good source of thiamin, vitamin B6, potassium, magnesium, and manganese, and a good source of iron.
Spiders are, for the most part, such generalist feeders that they kill many useful insects as well as many pest species, however because pest species are by their nature more numerous than beneficial species they are still effective. They are of great value to the environment.
Quick Answer. By eating the bugs that can destroy crops, spiders serve an important function in many ecosystems. Spiders are also prey for other animals, further adding to their ecological importance, and spider silk is potentially useful to humans as a material. Keep Learning.