AP BIOLOGY

Detailed explanation-1: -The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. These roadways travel in one direction only, to keep things going where they should.

Detailed explanation-2: -The circulatory system delivers oxygen and nutrients to cells and takes away wastes. The heart pumps oxygenated and deoxygenated blood on different sides. The types of blood vessels include arteries, capillaries and veins.

Detailed explanation-3: -The arteries break down into smaller and smaller branches to bring oxygen and other nutrients to the cells of the body’s tissues and organs. As blood moves through the capillaries, the oxygen and other nutrients move out into the cells, and waste matter from the cells moves into the capillaries.

Detailed explanation-4: -These nutrients include glucose, amino acids, vitamins, minerals, and fatty acids. Blood also transports some hormones secreted by endocrine system glands to target organs and tissues.