M2L1:Levels of organization of life Flashcards
the starting point of animal organization
The cell
tissues, organs, organ systems
group of cells
group of atoms, smallest unit of most chemical compounds
molecules
smallest functional unit of life
cells
group of cells
tissues
group of tissues
organs
group of organs
organ system
group of organ system
organism
group of organism
population
populations that live together
community
community and its nonliving surroundings
ecosystem
The part of earth that contains all ecosystem
biosphere
- 2 or more bonded
atoms - Form compounds
*A combination of
atoms. - NON-living
Molecules
Smallest part of
matter/particle of an
element that retains
the properties of an
element.
* NON-living
Atoms
- Very large molecules
- Proteins, fats,
carbohydrates, nucleic
acids - NON-living
Macromolecules
“Tiny organs”
* Made of
macromolecules
*A structure within a
cell that performs a
specific function
Organelles
- Made of organelles
- Basic unit of structure & function of life/ smallest unit of life.
- Living
Cell
- The same kind of cell working
together/a group of similar cells - Living
Tissues
- Tissues that work together
- Living
Organs
- Organs that work together
- Living
Organ system
- May be a single cell
- Entire living things
(organisms) - Usually made of
systems - Living
Organism
- Same type of organism living
together
Population
- Several populations living
together - Population interacting together
Community
- A biotic (living) community
plus the abiotic (nonliving)
features
Ecosystem
- Similar ecosystems on earth
together
Biome
- Whole living layer around the globe
- Includes abiotic features
Biosphere
Cell hierarchy
Atom>Molecule>Macromolecule>Organelle>Cell
Organ hierarchy
Tissue>Organ>Organ System>Organism
Population>Community>Ecosystem>Biome>Biosphere
Classification hierarchy
