pacific tree frog
Worms make up the largest group of complex invertebrates.
It belongs to Arthropoda .
Scorpion belongs to Arthropoda .
Animals are divided into two groups, vertebrates and invertebrates. Vertebrates are animals with a backbone and invertebrates are animals without a backbone. In the invertebrates group there are mollusks, Insects, crustaceans and arachnids. Spiders are part of the arachnid group along with scorpions.
animals with backbones
That depends on your definition of the word "successful." If you mean which group is more numerous and has populated more of the world, it would be the invertebrates. If you mean which has more higher intelligence, it would be vertebrates. If you mean which group is more essential to the food chain, it would be the invertebrates. If you mean which has the largest animals, it would be the vertebrates. It all depends on what you're talking about.
Animals that have no backbone are part of the group known as invertebrates. This group includes organisms such as insects, worms, snails, and jellyfish. Invertebrates make up the majority of animal species on Earth.
Largest!
Cnidarians are the most diverse group.
yes because it belongs to phyla Arthropoda which are the most diverse group of invertebrates
vertebrates and invertebrates
Vertebrates are animals with back bones. Invertebrates don't.