Digestive cavity only has a single orifice in the middle of the body. Planarians: Humid climates (seas, rivers and lakes). Tapeworms: Parasites that live in the intestine of ogher animals. ![]() Simplest animals that have bilateral symmetry and cephalisation of the nervous system. Digestive cavity with a hole with tentacles around. Polyps: Internal skeleton or mineral external skeleton. Simple tissues and some of then have organs. Sexual reproduction or asexual reproduction by fragmentartion.ĭc33a65f-78cb-4ede-b9bb-431129243500.JPG (image/JPG)Ĭnidarians are aquatic animals that have radial symmetry. ![]() Porifera are aquatic sessile animals that mainly live in the sea. ![]() They are ectotherms (their temperature is dependent of the temperature outside their bodies. Offspring development: direct or indirect.ĭepending on whether they have a backbone and an internal skeleton made up of bones: VERTEBRATES and INVERTEBRATES.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |