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Science Mid-Term

QuestionAnswer
sexual reproduction requires two parents
asexual reproduction requires one parent
metabolism all chemical activities that an organism's cell performs
homeostasis ability of an organism to keep proper temperature
producer an organism that that makes its own food; plants utilize chloroplasts
consumer obtains food by eating other organisms
heredity can cause offspring to resemble their parents
Stimuli a change in an organism's enviroment that effects its activities
diffusion particles move from areas of high concentration to areas of low concentration
active transport nutrients move through a membrane using energy
osmosis diffusion of water through a cell membrane
cells basic units of living things
stimulus a change in an organisms enviroment that effects its activities
organs groups of tissues working together; example heart
characteristics of living things 1. made of cells 2. ingestion 3. digestion 4.respiration 5. excretion 6.growth 7.respond to simuli 8. reproduction
mitosis creates two identical cells
response an organisms response to simuli
controlled experiment tests only one factor (thing) at a time
scientific method series of steps used to answer questions and solve problems
hypothesis a possible explanation or answer to a scientific question
conclusion summary of completed controlled experiment
cell wall protects and supports the plant cell
cell membrane controls what goes in and out of the cell
organs two or more tissues working together; heart; liver; lungs
DNA molecule that carries our hereditary information
lysosomes contains digestive enzymes
vacuoles storage tanks in a cell
respiration oxygen is used to break down food and release energy
endopolasmic reticulum transports proteins throughout the cell
ribosomes make proteins for the cell
mitochondria powerhouse of the cell
chromosomes direct cell growth and reproduction
chloroplasts makes food for plants inside their cells
nucleus control center of the cell
Created by: easterday.a15
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