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Biology

TermDefinition
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; found in many different forms
Law of Conservation of Energy Energy cannot be created or destroyed
Cell The basic unit of life
Evolution The changes in a population overtime
Species A group of organisms that can reproduce with eachother
Adaption An adjustment to environmental conditions
Ecosystem All of the living and nonliving things found in any particular area
Homeostasis The ability of organisms to maintain their internal conditions
Diffusion The movement of molecules from an area of high consternation to an area of low concentration.
Transport To move molecules one side of a membrane to the other.
Osmosis The movement of water through a cell membrane.
Prokaryote A cell with only one outside membrane and no nucleus or other internal structures.
Eukaryote A cell with several internal structures, including the nucleus, that are surrounded by membrane.
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 Cell Nerves made from collections of nerve cells.
Organ A group of different tissues that work together to perform specific functions.
Organ System A group of different organs that work together to perform specific connected tasks.
Circulatory System A collection of organs, including the heart, which moves blood and gasses throughout the body.
Estrogen A female sex hromone
Fallopian Tubes A tube through which eggs pass from any 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.
Oocycte An early egg cell that has not finished meiosis.
Ovary The process of creating an egg cell.
Semen A mixture of fluid and sperm cells.
Testroterone A male sex hormone.
Urethra The tube that carries urine and semen out the body.
Uterus An organ in most female mammals that holds and protects an embryo.
Vas Deferens The tubes that connect the testes to the urethra.
Gestation Tube The period of development of a mammal, from fertilization until birth.
Fetus An embryo after eight weeks of delvelopment in the uterus
Placenta A tissue that provides the embryo with food and oxygen from its mothers body
Umbilical Cord The cord that connects an embryo to the placenta
Ingestion The intake of food; the first stage of digestion.
Pharynx The passage way 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 made 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 difficult.
Bronchitus An inflammation of the bronchial tubes.
Created by: johnnyharrod13