characters of kingdom animalia
Answers
Answer:
* These organisms are multicellular, eukaryotic and without chlorophyll.
*The cells possess no cell walls and plastids.
*Central vacuoles are absent but small vacuoles may occur.
*Most of them are free moving (except sponges and some coelentrates)
*Nutrition is primarily ingestive.
*Reproduction is generally sexual and the haploid stage is represented only by gametes.
*Growth of organisms stops when the adult stage is reached.
Answer:
1. Animals are eukaryotic, multicellular and heterotrophic organisms.
2. They have multiple cells with mitochondria and they depend on other organisms for food.
3. Habitat - Most of the animals inhabit seas, fewer are seen in fresh water and even fewer on land.
4. Animal bodies - Bodies of animals are made of cells organized into tissues that perform specific functions.
5. Cell structure - The animal cell contains organelles like the nucleus, mitochondria, Golgi complex, ribosomes, endoplasmic reticulum, lysosomes, vacuoles, centrioles, cytoskeleton.
6. Organ systems are skeletal system, muscular system, digestive system, respiratory system, circulatory system, excretory system, reproductive system, immune system and the endocrine system.
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