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kingdom Animalia
biology test
| Term | Definition |
|---|---|
| feeding | some are herbivores, some are carnivores and some are omnivores |
| respiration | they must take in oxygen and give off carbon dioxide |
| excretion | poison to the body and must be released |
| response | nerve cells allow organisms to respond to their environment |
| movement | some animals remain in one spot their entire life while others are in motion |
| reproduction | most reproduce sexually with gametes (egg or sperm) It is essential for the survival of a population |
| asymmetrical | the body cannot be divided into two identical halves |
| radial symmetry | the body can be divided into two identical halves by any plane that passed through the longitudinal axis |
| bilateral symmetry | the body can only be divided into two identical halves by a plane that passes through the center of the body on a longitudinal axis |
| porifera | sponges |
| cnidaria | cnidarian |
| Platyhelminthes | flatworms |
| Nematoda | roundworms |
| Annelida | segmented worms |
| Mollusca | mollusks |
| Arthropoda | arthropods |
| Echinodermata | echinoderms |