Exact number of invertibrate species is unknown. A rough estimate is as follows:
sponges - 10,000 species
cnidarian - 9,000 species
molluscus - 100,000 species
platyhelminths - 13,000 species
nematodoes - over 20,000 species
annelida - 12,000 species
anthropodis - crustaceans - 40,000 species, arachnids - 75,500 species, insects - over 800,000 estimated at 1-30 million species
There are around 2 million species of inveribrates in the world
98% of animal species currently existing on Earth are invertebrates, actually! Some examples include all insects, worms, jellyfish, and squid.
All species of monkeys are vertibrates, they have a backbone, invertibrates do not have a backbone.
about 18,492,002 species consists on earth
there are 15 kinds of vertibrates
no, invertibrates are animals without bones like an earth worm WRITTEN BY KSHANIAH
about 18,492,002 species consists on earth
Many people would argue that no one species was on the Earth before another species. These people believe in creationism.
They all died out..
Scientific name of
There are around 1,000 species of bats in the world.
Approximately 5% of the animal kingdom is made up of vertebrates, which includes animals with a backbone such as mammals, birds, reptiles, amphibians, and fish. The majority of animals are invertebrates, which do not have a backbone.