A | B |
General characteristics used to classify organisms into kingdoms | Unicellular or multicellular; heterotroph or autotroph; prokaryotic or eukaryotic; sexual or asexual reproduction |
Unicellular | An organism composed of only one cell |
Multicellular | An organism composed of many cells |
Sexual reproduction | 2 parents; offspring receive 50% of the DNA from each parent; slow reproduction rate |
Asexual reproduction | 1 parent; offspring receive 100% of the parent's DNA; fast reproduction rate |
Autotroph | An organism that can manufacture its own food |
Heterotroph | An organism that has to get its food (cannot manufacture its food) |
Photosynthesis | The process by which the energy from the sun is used by an organism to make chemical energy (sugar). |
Chemosythesis | The process by which organic compounds (sugars) are made using the chemical reactions from the Earth; typically takes place near hydrothermal vents |
Prokaryotic cell | Cell without a nucleus; primitive cell |
Eukaryotic cell | Cell with a nucleus; DNA is contained within the nucleus; more advanced |
Eubacteria | Prokaryotic; unicellular; can be autotrophs or heterotrophs; most common bacteria; found everywhere |
Archaebacteria | Unicellular; prokaryotic; found in extreme environments |
Protista | Cannot be classified as an animal plant or fungus; Eukaryotic; autotroph and heterotroph; ex. Slime mold; protozoa; primitive algae |
Fungi | Multicellular; Eukaryotic; heterotroph; ex. Yeast, mushrooms, ringworm |
Plantae | Multicellular; Eukaryotic; autotroph; provides food for heterotrophs |
Animalia | Multicellular; eukaryotic; live everywhere; heterotrophs. |
Regeneration | A special form of asexual reproduction where the organism can replace a lost part or produce an entirely new organism from the lost part. |
Budding | A form of asexual reproduction where a new organism develops from an outgrowth on the parent and then separates after it is mature. |
Cell division | A form of asexual reproduction where a cell grows and divides forming two daughter cells that are identical to the parent cell. |