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Classification
based on observable characteristics such as structures (anatomy, cell biochemical) of development, genetics, and sometimes behavior
often shows relatedness among organism
prokarote
–lacks nuclear membrane/ nucleus (genetic material free-floating), no membrane-bound organelles
eukaryote
–contains nucleus which has a nuclear membrane surrounding genetic material, has membrane-bound organelles
nuclear envolope
membrane that surrounds cell’s nucleus in eukaryotic cells
cell wall
outer layer, gives shape to & protects cell, can be made of different materials, not always present
cell/plasma membrane
–encloses cell and allows materials to enter/exit cell
autroph
makes organic food molecules
heterotroph
–cannot make organic food molecules, must obtain them
photosynthetic
type of autotroph that makes organic food molecules using energy from sunlight
external digestion
type of heterotrophic process in which one organism dissolves another organism externally and then brings the dissolved materials inside
ingesiton
type of heterotrophic process in which one organism takes body parts of or wastes from another organism into its digestive tract for internal break down
flagella
tail like structure
cillia
many hair like structure
contractile fibrils
within organism, get smaller to create movment
ameboid (pseudopodia)
fake “foot” that oozes outward
multicellular
individual cells in an organism are coordinated, dependent. Cells are specialized & can differ from one another.
unicellular
one celled
colonial (filamentous and Gobular)
contains many cells and they are all similar. Filamentous colonial – same cell in a line globular colonial- same cell in a blob
Biological categrories
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Explain how related organisms in the same biological category are
the more characteristic they have in common the more common ancestors they have
