Invertebrates
The invertebrate animals don’t have bones and are oviparous, meaning they reproduce by laying eggs.
We classify them into six different groups:
Sponges are aquatic animals and their body is full of pores.
Jellyfish (Cnidarians) and coral, are also aquatic and live in the sea and ocean.
Worms (Annelids) have elongated, soft bodies and can either be aquatic or terrestrial. Some protect themselves with the use of a shell, like snails or mussels, but others don’t such as the octopus or slugs.
The echinoderms are exclusively aquatic animals, such as the star fish.
Arthropods are the most abundant animals on Earth. They can be either insects: flies and ants, arachnids: spiders and scorpions, crustaceous: crabs and lobsters and myriapods like the caterpillar or centipede.