NATS 1675 Lecture Notes - Lecture 6: Foramen Magnum, Mitochondrion, Notochord
Document Summary
It is the marriage of convenience between some prokaryotes & eukaryotes . This marriage was the result of ingestion without digestion of prokaryotes by primitive eukaryotes. An association between members of 2 or more different species. An example is if you get bitten by a mosquito: it will be a symbiotic relationship. It is a one of the four types of symbiosis that is beneficial to both species. Example: digestive bacteria and humans human beings have what are often called. The good bacteria exists in order to help the human digest food. All are heterotrophs; characteristically ingest food, i. e. , they eat the tissues of other organisms. Hollow dorsal nerve cord & notochord (lengthwise supporting rod located on dorsal side. Usually give live-birth (developing embryo usually retained in a uterus) Binocular vision (eyes rotated forward to the front of the head resulting in stereoscopic vision)