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Biology
| Term | Definition |
|---|---|
| Biology | The study of life |
| Organism | A living thing;one of many different forms of life |
| Cycle | A course or series of events or operations that repeats |
| Energy | the ability to do work |
| Law of conservation energy | energy cannot be created or destroyed |
| Cells | The basic unit of life |
| evolutuon | the changes in a population over time |
| species | a group of organisms that can reproduce with each other |
| adaptation | an adjustment to environmental conditions |
| ecosystems | all the living and nonliving things found in a particular area |
| diffusion | the movement of molecules from an area of high concentration to an area of low concentration |
| homeostasis | the ability of organisms to maintain internal conditions |
| transport | to move molecules from one side of a membrane to the other |
| osmosis | the movement of water through a cell membrane |
| Prokaryote | A cell with one outside membrane and no nucleus |
| Eukaryote | A cell with several internal structures, including a nucleus |
| Binary Fission | reproduction in which a bacterial cell divides into two cells that look the same as the original cell |
| Tissue | A group of cells that are similar and work together |
| Epithelial Cell | A skin cell |
| Nervous tissue | nerves made form a collection of nerve cells |
| Organ | A group of different tissues that work together to perform a specific function |
| Organ System | A group of organs that work together to perform specific connected tasks |
| Circulatory System | A collection of organs including the heart, which moves blood and gases throughout the body |
| bilayer | two layers |
| cell membrane | the membrane that surrounds a cell and separates it from its environment |
| cytoplasm | the area inside a cell;contains organelles and cytosol |
| cytosol | the third base of cytoplasm; contains molecules used and made by the cell |
| vas deferens | The tubes that connect the testes to the urethra |
| Estrogen | A female sex hormone |
| Fallopian Tube | A tube through which eggs pass from an ovary to the uterus |
| Gonad | An organ that makes gametes |
| Menstruation | The process during which an unfertilized egg,blood and pieces of the lining of the uterus exit the female body |
| Oocyte | An early egg cell that has not finished meiosis |
| Ovary | The female organ that makes egg cells |
| Semen | A mixture of fluid and sperm cells |
| Testosterone | A male sex hormone |
| Urethra | The tube that carries urine and semen out of the body |
| Uterus | An organ in most female mammals that holds and protects an embryo |
| gestation time | The period of development of a mammal from fertilization until birth |
| Fetus | An embryo after 8 weeks of development in the uterus |
| placenta | A tissue that provides the embryo with food and oxygen from its mother's body |
| Umbilical cord | The cord that connects an embryo to the placenta |
| Ingestation | The intake of food; the first stage of digestation |
| Pharynx | The passage between the mouth and esophagus for air and food |
| Peristalsis | The movement of digestive organs that pushes food through the digestive tract |
| Chyme | The liquid food in the digestive tract that is partially digested |
| Bile | A substance made in the liver that breaks down fats |
| Feces | The solid waste material remaining in the large intestine after digestion |
| Capillary | A blood vessel which oxygen and food molecules pass to body cells |
| Asthma | A condition that narrows or blocks the airways and makes breathing difficult |
| Bronchitus | An inflammation of the bronchial tubes |
| Epithelium | A thin layer of cells forming a tissue that covers body surfaces and lines some organs |
Created by:
matthewfr
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