list the major p h y l a of kingdom animalia with one main feature and one example of each
Answers
Phylum Porifera
aka sponges; means animal that contains holes; are sessile feeders (stuck to the ground, eating what comes near them); body symmetry: asymetric eg. yellow tube sponge
Phylum Cnidaria
contains cnidocyte or venomous cells that helps collect and transmit sensory information; body symmetry: radial eg. jellyfishes
Phylum Platyhelminthes
aka flat worms; lacks a coelom and other body cavities; can be found in marine or fresh water; body symmetry: bilateral; eg. tapeworms
Phylum Nematoda
aka the roundworms; very long and narrow; body symmetry: bilateral; eg. ascaris
Phylum Annelida
have long bodies that have segments divided externally by shallow rings; body symmetry: bilateral; eg. earthworms
Phylum Mollusca
one of the largest phyla composed of many diverse organisms; all have a soft body; body structure composed of three parts; body symmetry: bilaterarl eg. octopus, snails, oysters
Phylum Echindodermata
means spiky skin; dwells at the bottom of the ocean floor; body symmetry: radial eg. starfishes, sea lilies, sea urchins
Phylum Arthropoda
has jointed appendages (body extensions that give them a wide range of controlled motion); most successful because they are the most diverse, living in a great range of habitats; body symmetry: bilateral; eg. lobsters, centipedes, butterflies, spiders
Phylum Chordata
has internal skeletal rod, a complete digestive system, a ventral heart, a closed blood system and a tail; body symmetry: bilateral; eg. sharks, fishes, lizards frogs,humans