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Life/earth/space sci

Missouri GED On-Line, Science

organisms living things
ecosystems a community of populations or organisms, together with the habitats and natural resources that affect the community
environment all of the living and nonliving things that affect an organism's life in some way
cell the basic building blocks of all life
organic a term that means carbon-carrying
species term refering to a group of organisms taht have the same number of cromosomes and look alike
invertibrate group animals without a backbone or skull
vertibrate group of animals with backbones
migrate to move from one place to another
mutation a change in genetic information within a cell
genes a strand of DNA that carries the information for a specific trait
nucleus part of the cell that controls it's activities
stimulus something in the environment that causes a living thing to change it's behavior
DNA molecule that holds all of the genetic information of an organism
mitosis process of cell division
atmosphere the blanket of air that surrounds the earth
erosion the natural movement of rock fragments due to gravity
solar system term used to describe a sun and the objects that orbit it (planets, moons, and asteroids)
galaxy a large group of stars