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Biological Organizat

iLearn Biology

QuestionAnswer
Reductionism Learning about a structure by studying its parts.
Emergent properties Characteristics not found at lower levels.
Atom The smallest unit of a chemical element.
Molecules Atoms combine chemically to form these.
Macromolecules A very large organic molecule.
Organelles Specialized structures within a cell.
Cell The basic unit of life.
Tissue During the evolution of multicellular organisms, cells associate to form this.
Organs In most complex organisms, tissues organized into functional structures.
Organ System In animals, biological functions performed by a coordinated group of tissues and organs.
Organism A living system containing one or more cells. In animals, it also contains organ systems that perform precise functions.
Population A group of organisms of the same species that live in a defined geographic area at the same time.
Community An association of populations of different species living together in a defined habitat with some degree of interdependence.
Ecosystem The interacting system that encompasses a community and its nonliving, physical environment.
Biosphere All of Earth’s living organisms, collectively.
Ecology A discipline of biology that studies the interrelations among living things and their environments.
Created by: pacetej
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