What are the main features of invertebrates?
1.they have basically three body parts i.e: head , thorax and abdomen. 2.they have no lungs. they respire through their skin. 3.they live in colonies . 4.some are harmful for humans like termite, mosquitoes jelly fish and houseflies. 5.they lay eggs and not babies.
invertebrate has backbones and vertebrates has no backbone Animals can be classified into two main groups: Vertebrates and invertebrates. The main difference between vertebrates and invertebrates is that invertebrates do not have a backbone or a spinal column. Examples of vertebrates are birds and snakes while some invertebrates are insects and flatworms.