The endocrine system is a control system of ductless glands that secrete hormones within specific organs. Hormones act as messengers, and are carried by the bloodstream to different cells in the body, which interpret these messages and act on them.he pancreas is unusual among the body's glands in that it also has a very important endocrine function. Small groups of special cells called islet cells throughout the organ make the hormones of insulin and glucagon.
The island of Manhattan was purchased for wampum. Wampum was used as the main form of Native American Money because it had value as a decorative item, and many Native Americans pierced holes at the top of their wampum and wore them in a belt rather than carrying wampum in a bag.
Indians ate many different kinds of food. Those who lived on the plains of the Central United States ate the meat of buffalo. The Pueblos of the south-western part lived on corn, beans and squash. Indians in Alaska and Canada were fishers and hunted deer and other wild animals in the forests.Most Indians ate berries and collected nuts.n some parts of America, Indians built wigwams that were covered with leaves. Some tribes built houses into the earth that they covered with leaves and grass. Indians of in the Great Plains built tepees made of buffalo skin.