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| An adjustment in structure or habits by which a species or individual improves its condition in relationship to its environment. |
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| Animals of various species living in a certain habitat. |
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| growing or living in water |
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| The actions and reactions of humans or animals. |
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| Capable of being decomposed. |
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| A large geographical area with the same climate conditions and a distintive type of vegetation. |
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| The part of the earth where living orgnaisms live. |
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| A plant with wide broad leaves. |
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| To dig a hole or tunnel to live in. |
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| Two or more living things competing for resources. |
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| A plant that bears seeds in cones, mostly with needle like leaves. |
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| A forest composed of needle-leafed trees like pine, fir, and spruce. |
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| The wise and intelligent use or protection of natural resources. |
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| A living thing that eats a producer or another consumer. |
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| One type of biome that consists mainly of trees that loose their leaves in the fall. |
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| Orginisms that eat dead organic material. |
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| A living organisms job in an ecosystem. |
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| A system that includes living and non-living parts, where animals and plants live and interact. |
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| A species that is in danger of extinction. |
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| Conditions surrounding an organism that influence its existance. |
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| A plant with leaves that remain green throughout the year. |
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| A plant or animal that has died out. |
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| The transfer of energy from one organism to another as each consumes a lower member and is preyed on by a higher member. |
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| An interlocking pattern of food chains. |
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| The layer of decomposing material that covers the soil in a forest. |
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| A biome or community where grass is the most abundant vegetation. |
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An animal's address.
The food, water, shelter and space that an animal lives in to meet it's basic needs. |
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| Decayeing plant or animal matter found in soil. |
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A plant or animal that would naturally be in a certain area.
For example, a polar bear would be indigenous to an arctic region. |
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| Non-living, or made from something non-living. |
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| A chemical used to kill insects. |
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| The relationship of one organism to another. |
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| When different species within an ecosystem rely upon one another for survival. |
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| The continuous sequence of changes undergone by an organism. |
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| Things that influence the life of an animal or a population of animals, such as food, water, shelter, space, disease, predation, climatic conditions, pollution, hunting, poaching, or accidents. |
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| An organism that can only be seen in a microscope. |
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| Birds or other animals that move every year from one region or country to another. |
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| To add materials to soil in order to protect improve the soil. |
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| A plant or animal species that was produced in a certain region. |
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| Nonliving resources such as rocks and minerals that cannot be replaced. |
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| Ananimal that eats both plant and animal material. |
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| An organism that lives off of another organism, usually causing it harm. |
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| Any chemical used to control insects or other living pests. |
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| Contamination of soil, water, or atmosphere from harmful substances. |
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| Contamination of soil, water, or atmosphere from harmful substances. |
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The number of a particular species in an area.
For example, a population of geese. |
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| An animal that kills and eats other animals. |
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| Protecting to keep in a perfect or good condition. |
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| Animals that are killed or eaten by other animals. |
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| A green plant that makes its own food. |
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| The area where a plant or animal normally grows. |
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| A wildlife species not presently endangered, but with low numbers. |
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| A resource such as plants and animals that is replaceable by new growth. |
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| Small mammals tht have teeth adapted for gnawing and nibbling, such as rats, mice, and rabbits. |
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A flat grassland with scattered clumps of trees.
example: an African savanna |
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| An organism that eats left-over kills and carrion. |
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| A period of time when something specific usually occurs. |
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| Cover for bedding or protection. |
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| A population of individuals that are more or less alike. |
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| A gradual replacement of one plant or animal by another. |
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| An area defended by an animal against others of the same species. |
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| A species that is in danger because of its decline in numbers. |
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| To move from one area to another. |
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| A layer of plants growing under another higher level. |
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| Animals that are not tamed. |
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| Land having a cover of trees and shrubs. |
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| Any land area that is usually wet, like a marsh or swamp. |
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| An animal's color or pattern that helps it blend in with its surroundings. |
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| A gas breathed out by animals. |
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| The basic building block of life. |
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| The average temperature and rainfall of an area over many years. |
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| Everything that surrounds and affects an animal, including living and non-living things. |
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| Soil that has the nutrients to grow many plants. |
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| A behavior that an animal begins life with. |
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| An animal without a backbone. |
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| An animal that has hair and produces milk for its young. |
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| The process of change;for example, from an egg to an adult butterfly. |
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| The process by which a plant makes its own food. |
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| A cold-blooded animal that has dry scaly skin. |
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| A group of parts that work together as a unit. |
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| The giving off of water vapor by plants. |
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| An animal with a backbone. |
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| A vertibrate that begins life with gills and later develops lungs. |
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| The green material in plants that helps a plant make food. |
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| Having a body temperature that changes with the temperature of it's surroundings. |
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| A characteristic of an organism. |
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| carbon-dioxide/oxygen cycle |
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| The process by which carbon and oxygen cycle among plants, anmals and the environment. |
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| A single organism in an ecosystem. |
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| A behavior an animal learns how to do. |
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| A characteristic that is passed from parent to offspring. |
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| The cycle in which nitrogen gas is changed into forms of nitrogen that plants can use. |
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