Abiotic Factor- non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems

Biotic Factor- any living component that affects another organism and the living food the organism consumes

Ecosystem- a biological community of interacting organisms and their physical environment

Habitat- the natural home or environment of an animal, plant, or other organisms

Organism- an individual animal, plant, or single-celled life form

Population- a particular section, group, or type of people or animals living in an area

Community- a group of people living in the same place or having a particular characteristic in common

Classification- the process of classifying something according to shared qualities.

Taxonomy- the classification of something, especially organisms


Cell- capable of independent functioning, consisting of cytoplasm, usually one nucleus, and various other organelles, all surrounded by a semipermeable cell membrane

Cell Membrane-  The semipermeable membrane that encloses the cytoplasm of a cell.

Cell Wall- The rigid outermost cell layer found in plants and certain algae, bacteria, and fungi but absent from animal cells.

Organelle- A differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast, that performs a specific function.

Tissue- An aggregate of cells in an organism that have similar structure and function.

Organ- A group of tissues that perform a specific function or group of functions.

Unicellular- Having or consisting of one cell; one-celled.

Multicellular- Having or consisting of many cells.

Autotroph- an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

Hetertroph- an organism that cannot fix carbon and uses organic carbon for growth.

Prokaryotic- is a single-celled organism that lacks a membrane-bound nucleus(karyon), mitochondria, or any other membrane-bound organelles.

Eukaryotic- any organism having as its fundamentalstructural unit a cell type that containsspecialized organelles in the cytoplasm, amembrane-bound nucleus enclosing geneticmaterial organized into chromosomes, andan elaborate system of division by mitosis ormeiosis, characteristic of all life forms exceptbacteria, blue-green algae, and otherprimitive microorganisms.