Phylum -

Each phylum represents a specific evolutionary path, defined by unique characteristics like internal structure, body symmetry, and mode of development.

Soft-bodied animals, often with shells (snails, clams, octopuses). phylum

Creatures with stinging tentacles (jellyfish, corals). Porifera : Simple, porous aquatic animals (sponges). Annelida : Segmented worms. Why Does Phylum Matter? Each phylum represents a specific evolutionary path, defined

Animals with a backbone (or notochord), including humans, fish, and birds. and mode of development. Soft-bodied animals

Animals with jointed legs and exoskeletons (insects, spiders, crustaceans—the largest phylum).