Science Flashcards
Unicellular
Made up of ONE cell
Multicellular
Made up of TWO OR MORE cells
Cell
Smallest unit of life
Organisms
Things that have all of the characteristics of life
Tissue
Cells working together
Organs
Tissues working together
Organ Systems
Organs working together
Development
A change a organism undergoes
Asexual
One cell divides itself & creates into new cells. no mate.
Sexual
Has to have a mate in order to produce babies
Reproduction
Ability to produce
Internal Stimuli
Changes inside the organism
External Stimuli
Changes outside the organism
Stimuli
Organisms live in environments that change all the time
Example for Internal Stimuli
Hunger or Thirst
Example for External Stimuli
Sunburn
Homeostasis
An organism’s ability to maintain steady internal conditions when outside conditions change
Contractile Vacuole
Some unicellular organisms have a structure
Energy
All organisms use energy
What are all of the Six Characteristics of Life?
-Made of Cells/Organized
-Grow & Develop
-Reproduce
-Respond to Stimuli
-Maintain Homeostasis
-Use Energy
