Key Points
Key Points: Kingdom Animalia
- Meaning - Heterotrophic, multicellular eukaryotes; cells lack a cell wall; cannot produce their own food.
- Nutrition - Mode of nutrition is holozoic (food obtained by ingestion); food is digested in an internal cavity; food is stored as glycogen or fat.
- Reproduction - By sexual reproduction - copulation of male and female followed by embryological development.
- Other features - Follow a definite growth pattern; higher forms have elaborate sensory and neuromotor mechanisms (nervous system and sensory organs); most are capable of locomotion.
- Cell structure - Has a nucleus and membrane-bound organelles; no chloroplasts (hence cannot photosynthesise); no cell wall (unlike plants and fungi).
