The smallest group of invertebrates are sponges. They live in the ocean, fresh water ,lakes. and streams. Some things attach themselves to other things so they can get food.
what are the smallest group of invertebrates
insects
invertebrates,marsupials
Invertebrates
Bat.
The largest group of invertebrates is the arthropods, including: the crustaceans (crabs etc) the arachnids (spiders etc) the insects the myriapods (centicipedes etc).
invertebrates
invertebrates
Worms make up the largest group of complex invertebrates.
Invertebrates do not have backbones.Examples of invertebrates are earthworms,insects,squids etc... Invertebrates are paraphyletic group.
Octopods.
Crustacean
mollusks :)
mammals are the smallest group of vertebrates
Beetles are invertebrates
Answer = Arachnids!
insects
aracinaids