Kingdom Animalia
Animals are many-celled organisms that must obtain their food by eating other organisms.
| Kingdom |
Cell Type |
Cellular Organization |
Nutrition |
Other Characteristics |
| Animals |
Eukaryotes |
Multicellular |
Heterotrophs |
Found in diverse environments |
Animals need to obtain water, food, and oxygen from their environment, or surroundings.
An adaptation is a characteristic that helps an organism syrvive in its environment or reproduce.
Animals that eat only plants are called herbivores. Animals that eat only other animals are carnivores. Predators hunt and kill their prey. Omnivore eat both plants and animals.
Biologists classify animals in the animal kingdom into about 35 phyla, or major groups. One important characteristic used to classify is the presence of a bcakbone (vertebrates) or absence of a backbone (invertebrates). Cnidarians (jellyfish), echinoderms (starfish), sponges, worms, mollusks (snails), crustaceans (crabs), spiders and insects are all invertebrates. Fishes, amphibians, reptiles, burds, and mammals are all vertebrates.
The bodies of complex animals have bilateral or radial symmetry.
Sponges, Cnidarians, and Worms
Mollusks, Arthropods, and Echinoderms
Phylum: Chordata
Fishes, Amphibians, and Reptiles
Birds and Mammals
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