| A | B |
| adaptation | a change in a species from one generation to the next that usually helps it survive better |
| dominant trait | a trait that usually is seen from one generation to the next |
| recessive trait | a trait that is hidden but will only show up if both the mother and father have the recessive gene |
| decomposer | things like worms, ants, mushrooms, etc. that break down dead things sending nutrients into the ground |
| nutrients | like the vitamins that make the ground good for plants to live in |
| food chain | the cycle or dominoe effect of energy as it travels though different animals and plants |
| consumer | things like animals that can't produce their own food inside their bodies |
| producer | green plants that produce their own food with the help of the sun and carbon dioxide |
| predator | animals that eat other living animals |
| prey | animals that hunted by other animals |
| migration | moving from one area to another due to climate or weather changes; adaptation |
| mimicry | copying what something looks like to help with survival; adaptation |
| hibernation | the ability to slow down your energy system during times when little food is available; adaptation |
| invasive species | species that are introduced to an ecosystem where don't normally exist and have a bad effect on the food chain |
| air pollution | from various forms of gases coming from cars, factories, cigarettes, etc. |
| water pollution | dumping of toxic liquids into streams and rivers or the runoff of sewage from land |
| soil pollution | dumping of trash, oils, gases, and other toxic materials that leak into the ground |
| deforestation | cutting down of large amount of the forest ecosystems |