Question | Answer |
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 of Energy | energy cannot be created or destroyed |
Cell | the basic unit of life |
Evolution | the change in a population overtime |
Species | a group of organisms that can reproduce with each other |
Adaptation | an adjustment to environmental condition |
Ecosystems | all of the living and nonliving things found in any particular areas |
Homeostasis | the ability of organisms to maintain their internal conditions |
diffusion | the movement of molecules from an area if high concentration to an area of low concentration |
transpot | 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 outide membrane and no nucleus |
Eukaryote | a cell with several internal structures, including a nucleus |
Binary fission | reproduction in which a bacteria divides into to two cell that look up same as the region cell. |
Tissue | A group of cells that are similar and work together |
Epithelial cell | A skin cell |
Nervous tissue | Nerves made from collections of nerve cells |
Organ | A group of different tissues that work together to performs specific fuctions |
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 |
Bilary | two layers |
Cytoplasm | the area inside a cell that contains organelles cytosol |
cytosol | The fluid base of the cytoplasm contains molecules used and made by the cell. |
Passive Transport | the movement of molecules across a membrane when the movement requires no energy |
Active Transport | the movement of molecules across a membrane when the movement requires energy |
Cell Membrane | A very thin membrane that surrounds the cytoplassm of a cell |
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 durning 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 |
Vas deferens | The tubes that connect the tests to the urethra |
Gestation Time | The period of development of a mammal, from fertilization until birth. |
Placenta | A tissue that provides the embryo with food and oxygen from its mother's food. |
Umbilical cord | The cord that connects an embryo to the placenta. |
Fetus | An embryo after eight weeks of development in the uterus. |
Ingestion | The intake of food, the first stage of digestion |
Pharynx | The passageway between the mouth and the 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 mad in the liver that breaks down fats |
Feces | The solid waste material remaining in the large intestine after digestion |
Capillary | A blood vessel through which oxygen and food molecules pass to body cells |
Asthma | A condition that narrows or blocks the airways and makes breathing diffcult |
Bronchitis | An inflammation of the bronchial tubes |
Epithelium | A thin layer of cells forming a tissue that covers body surface and lines some organs |