1. Classification of organisms 6.12 D

2. How are living organisms classified?
We classify living organisms into a Domain and Kingdom based on the following characteristics:
If they are…
Unicellular or Multicellular
Prokaryotic or Eukaryotic
Autotrophic or Heterotrophic
Mode of Reproduction:
Sexual or Asexual

3. Unicellular Organisms made of only ONE cell.
Ex: Bacteria, Archaea, Protista, Amoeba
Hint: the word UNI=One

4. Multicellular Organisms that are made of MORE than one cell.
Ex: Animals, Plants and Fungi
Hint: the word MULTI=Many

5. Prokaryotic
An organism whose organelles (cell parts) do NOT contain a NUCLEUS.
Very SIMPLE Structure
Hint: Pro means NO Nucleus

6. Eukaryotic An organism whose cell parts have a NUCLEUS
The “Eu” in Eukaryotic is pronounced “YOU”.
Very COMPLEX Structure.
Hint: “Eu”karyotic cells are like YOU…all of your cells have a NUCLEUS.

7. Prokaryotic Vs. eukaryotic
No Nucleus and Simple Structure
Ex: Archaea and Bacteria Domain
Has a Nucleus and Complex Structure
Ex: Eukarya Domain

8. Autotrophic Organisms that are capable of making their own food.
Ex: Plants, Bacteria, Archaea and Protists.

9. Heterotrophic
Organisms that can NOT make their own food.
Ex: Animals, Humans, and Fungi

10. Asexual reproduction
Reproduction of a cell that does not require two parents, but only the cell making an exact copy of itself.
Ex: Lizard regenerating its tail
Ex: When you get a scab and skin cells reproduce to create new skin.

11. Sexual Reproduction
Reproduction of an organism that requires two parents to create new offspring.
Ex: Babies, puppies, kittens