EVERYDAY SCIENCE

Detailed explanation-1: -About 84 percent of all known species of animals are members of this phylum. Arthropods are represented in every habitat on Earth and show a great variety of adaptations.

Detailed explanation-2: -Over 85 percent of all known animal species are arthropods (Fig. 3.73).

Detailed explanation-3: -Crabs, lobsters, shrimp, barnacles and many other animals belong to the phylum arthropods. In fact, 75% of all animals belong to the phylum arthropoda (which also includes spiders and insects).

Detailed explanation-4: -There are about 1018 (10 billion billion) arthropods alive at any one time. There are over three times as many species of arthropods as there are of all other animals on Earth, and there may be millions more that we haven’t even discovered. Arthropods do everything with legs or modified legs.

Detailed explanation-5: -Based on the number of species, they are by far the largest phylum in the animal kingdom. To put the importance of arthropods in perspective, roughly 80% of all species living on the planet today are members of the phylum Arthropoda. In this respect, arthropods have been wildly successful organisms.