BIOL 1001 Chapter : Biol 1001 Chapter 1 Intro To Life On Earth NOTES
Document Summary
Biol 1001 chapter 1 intro to life on earth. Element is a pure chemical substance consisting of only one type of atom. Living organisms can be: single celled(unicellular) ex: amoebas, paramecium/ or multicellular ex: plants, birds. Contain a framework of carbon with some hydrogen. Discussed in more detail with chapter 2: only found in multicellular organisms, composed of similar cells that perform a similar function, ex: muscle tissue= combination of muscle cells, tissues may combine to form organs. Organ: structure made up of several tissues that fuction as a unit, ex: heart, lungs, brain. Organ system: 2 or more organs working together to execute a specific bodily function, ex: heart makes up part of circulatory system. Population- members of one species inhabiting same area. Community- 2 or more populations of different species of living organisms interacting within the same area. Ecosystem: a community and its non-living environment, antelope, hawks, snakes, grass, rocks stream.
