What are the main features of invertebrates?

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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.
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What are the 5 main invertebrates?

The 5 main invertebrates are: . Porifera (Ex: sponges) . Cnidaria (Ex: jellyfish) . Other Bilaterian: Nematoda, Arthropoda, Mollusca, and Annelida . Echinodermata (E
In Zoology or Animal Biology

What features is seen in all higher invertebrates?

Higher vertebrates generally have a central nervous system and/or brain, or take the negative of that, sponges are the most primitive multicellular animal phylum, lacking a ne
In Skeletal System

What are the three main types of invertebrate skeletons?

Hydrostatic skeletons - muscles surround a fluid-filled cavity that supports the muscles.; when the muscles contract, they push against fluid in the body cavity, causing the b
In Invertebrates

What is the main group of invertebrates?

The group with the most species is that of the arthropods - insects, arachnids and crustaceans. But molluscs and the three groups of worms also make up a good part. Vertebrate