Chapter 1 - Terminology Flashcards
Biosphere
Regions of the Earths Crust, waters, and atmosphere inhabited by living organisms.
Ecosystem
A community plus the physical environment
Community
Interacting populations in a particular area
Population
Organisms of the same species in a particular area
Species
A group of similar; interbreeding organisms
Organism
An individual; complex individuals containing organ sysems.
Organ System
Composed of several organs working together
Organ
Composed of tissues functioning together for a specific task.
Tissue
A group of cells with a common structure and function
Cell
The structural and functional unit of all living organisms.
Molecule
Union of two or more atoms of the same or different elements.
Atom
Smallest unit of an element; composed of electrons, protons and neutrons.
Food
The capacity to complete work, food provides energy to humans and animals and helps maintain the organization of the cell and organism itself.
Metabolism
The chemical reactions that occur within a cell.
Photosynthesis
Produces organic molecules, such as sugars, that serve as the basis of the food chain for many other organism, including humans and other animals.
