Non-living variable within the ecosystem, affecting the life of organisms. (Examples; temperature, light, and water.)
An alteration or adjustment in structure of habits, often hereditary, by which a species or individual improves its condition in relationship to its enviroment.
The science, art, and business of cultivating soil, producing crops, and raising livestock; farming.
A group of aquatic, photosynthetic, eukaryotic organisms ranging from unicellular to multicellular forms, and generally possess chlorophyll but lack true roots, stems and leaves characteristic of terrestrial plants.
The height of an object or structure above a reference level, usually above sea level or the Earth's surface.
Of, relating to, or evolved from an ancestor or ancestors.
Any large group of plants that produce flowers. They develop seeeds from ovules contained in ovaries, and the seeds are enclosed by fruits which develop from carpels.
An underground bed or layer of permeable rock, sediment, or soil that yields water,
In _____ _________, only one parent is needed, resulting in offspring that are genetically identical to the parent -- clones.
The gasesous mass or envelope surrounding a celestial body, especially the one surrounding the earth, and retained by the celestial body's gravitational field.
Very large group of mircoorganisms comprising one of the three domains of living organisms. They are prokaryotic, unicellular, and either free-living in soil or water or parasites of plants or animals.
The total mass of living matter within a given unit of enviromental area. Plant material, vegetation, or agricultural waste used as a fuel or energy source.
A ____ is a large geographical area of distinctive plant and animal groups, which are adapted to that particular environment.
A factor created by a living thing or any living component within an enviroment in which the action of the organism affects the life of another organism. (Example; a predator consuming its prey.)
Causing cancer or contributing to the causation of cancer.