Biology
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each of the black spaces below before clicking
on it to display the answer.
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Biology | The study of life
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organism | A living thing; one of many different forms of life
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Cycle | A course or series of events or operations that repeats
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Energy | the ability to do work
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Law of Conservation of Energy | energy cannot be created or destroyed
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Cell | the basic unit of life
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Evolution | the change in a population overtime
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Species | a group of organisms that can reproduce with each other
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Adaptation | an adjustment to environmental condition
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Ecosystems | all of the living and nonliving things found in any particular areas
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Homeostasis | the ability of organisms to maintain their internal conditions
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diffusion | the movement of molecules from an area if high concentration to an area of low concentration
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transpot | to move molecules from one side of a membrane to the other
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osmosis | the movement of water through a cell membrane
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Prokaryote | a cell with one outide membrane and no nucleus
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Eukaryote | a cell with several internal structures, including a nucleus
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Binary fission | reproduction in which a bacteria divides into to two cell that look up same as the region cell.
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Tissue | A group of cells that are similar and work together
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Epithelial cell | A skin cell
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Nervous tissue | Nerves made from collections of nerve cells
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Organ | A group of different tissues that work together to performs specific fuctions
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Organ system | A group of organs that work together to perform specific connected tasks
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Circulatory system | A collection of organs, including the heart, which moves blood and gases throughout the body
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Bilary | two layers
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Cytoplasm | the area inside a cell that contains organelles cytosol
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cytosol | The fluid base of the cytoplasm contains molecules used and made by the cell.
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Passive Transport | the movement of molecules across a membrane when the movement requires no energy
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Active Transport | the movement of molecules across a membrane when the movement requires energy
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Cell Membrane | A very thin membrane that surrounds the cytoplassm of a cell
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Estrogen | A female sex hormone
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Fallopian Tube | A tube through which eggs pass from an ovary to the uterus
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Gonad | An organ that makes gametes
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Menstruation | The process durning which an unfertilized egg, blood, and pieces of the lining of the uterus exit the female body
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Oocyte | An early egg cell that has not finished meiosis
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Ovary | The female organ that makes egg cells
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Semen | A mixture of fluid and sperm cells
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Testosterone | A male sex hormone
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Urethra | The tube that carries urine and semen out of the body
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Uterus | An organ in most female mammals that holds and protects an embryo
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Vas deferens | The tubes that connect the tests to the urethra
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Gestation Time | The period of development of a mammal, from fertilization until birth.
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Placenta | A tissue that provides the embryo with food and oxygen from its mother's food.
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Umbilical cord | The cord that connects an embryo to the placenta.
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Fetus | An embryo after eight weeks of development in the uterus.
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Ingestion | The intake of food, the first stage of digestion
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Pharynx | The passageway between the mouth and the esophagus for air and food
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Peristalsis | The movement of digestive organs that pushes food through the digestive tract
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Chyme | The liquid food in the digestive tract that is partially digested
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Bile | A substance mad in the liver that breaks down fats
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Feces | The solid waste material remaining in the large intestine after digestion
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Capillary | A blood vessel through which oxygen and food molecules pass to body cells
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Asthma | A condition that narrows or blocks the airways and makes breathing diffcult
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Bronchitis | An inflammation of the bronchial tubes
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Epithelium | A thin layer of cells forming a tissue that covers body surface and lines some organs
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