ค้นเจอ 30 รายการ

Procaryotic organisms

แปลว่า(Environmental Engineering) Organisms which do not have a cellular membrane.

Eucaryotic organisms

แปลว่า(Environmental Engineering) Organisms which possess a nuclear membrane. This includes all known organisms except viruses and bacteria.

Decomposers

แปลว่า(Environmental Engineering) Organisms which utilize energy from wastes or dead organisms. Decomposers complete the cycle by returning nutrients to the soil or water and carbon dioxide to the air or water.

Trophic level

แปลว่า(Environmental Engineering) A level in the food chain. The first trophic level consists of the primary producers, autotrophs. The second trophic level is vegetarians which consume autotrophic organisms.

Heterotrophic

แปลว่า(Environmental Engineering) A group of organisms which obtain carbon for synthesis from other organic matter or proteins.

Ecosystem

แปลว่า(Environmental Engineering) An organism or group of organisms and their surroundings. The boundary of an ecosystem may be arbitrarily chosen to suit the area of interest or study.

Producers

แปลว่า(Environmental Engineering) Autotrophic organisms which produce protoplasm using inorganic carbon and energy from the sun.

Autotrophs

แปลว่า(Environmental Engineering) A group of organisms capable of obtaining carbon for synthesis from inorganic carbon sources such as carbon dioxide and its dissolved species (the carbonates). This group includes plants and algae.

Bacteria

แปลว่า(Environmental Engineering) One celled microorganisms which do not have a nuclear membrane.

Nitrogen fixation

แปลว่า(Environmental Engineering) The conversion of atmospheric (or dissolved) nitrogen gas into nitrate by microorganisms.

Ecology

แปลว่า(Environmental Engineering) The study of living organisms and their environment or habitat.

Anaerobes

แปลว่า(Environmental Engineering) A group of organisms that do not require molecular oxygen. These organisms, as well as all known life forms, require oxygen. These organisms obtain their oxygen from inorganic ions such as nitrate or sulfate or from protein.