What is an Animal ?
The FOUR main characteristics of an animal:
...and every animal must be able to:
- Eukaryotic
- Heterotrophic
- Multicellular
- No Cell Walls
...and every animal must be able to:
- feed on others (heterotrophic)
- respire
- circulate nutrients & gases
- excrete
- respond
- reproduce
Categorize the different phylums of animals by...
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