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.
Earthworms play an important role in soil formation. Soil formation is a continuous process, impacted by physical factors including wind, rain and temperature, as well as biological forces such as plants and animals. Earthworms significantly influence the formation of soil, helping to shape soil structure, content and fertility.