Causes of ALS. ALS is a somewhat diverse and decidedly mystifying disease. In more than nine out of every 10 cases diagnosed, no clear identifying cause of the disease is apparent, that is, patients lack an obvious genetic history, complete with affected family members.
Here is a list of some of the more common varieties, along with fruit and plant descriptions. 1  Aristocrat - this variety features a waxy skin and is medium green in color.  Black Zucchini - very dark green skin and almost white flesh, very common variety of zucchini.
Tips. 1  Select zucchinis that have no bruising or marring. Like the more traditional squashes, zucchini will go bad very quickly once the skin has been broken. 2  Taste test several sizes of zucchini to see which you like best. Some people like smaller zucchini, while others like larger ones. If you are picking them from your garden, try a smaller one and a larger one and see which you like best. If you are selecting one at the grocery store, pick the largest ones you can find.