For the leaf shape, see Cordate. Chordates (/ËkÉrdeÉªts/) are animals possessing a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail for at least some period of their life cycles.or the leaf shape, see Cordate. Chordates (/ËkÉrdeÉªts/) are animals possessing a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail for at least some period of their life cycles.
A UCLA Health answered. Colon cancer can cause a person to feel tired or weak, lose weight, and have general discomfort in their digestive system and bowel movements. In the later stages of colon cancer, the cancer can spread beyond the rectum into other parts of the body. In stage III colon cancer, the lymph nodes that reside nearby are infected. In the final stage of colon cancer, stage IV, the cancer has spread to other organs, such as the liver or lungs.
As cancer cells divide, they can invade surrounding tissue. They can also break away from the original (primary) tumour and enter the bloodstream or lymphatic system. If the cancer cells escape detection by the immune system, they can be carried by the blood and lymph to distant parts of the body. This is how cancer can spread (metastasize). Childhood cancers tend to metastasize earlier than adult cancers. About 80% of childhood cancers have metastasized when they are diagnosed.