Chapter Twelve Flashcards
Kingdom Animalia
The kingdom of multicellular, heterotrophic eukaryotes without cell walls
Phylum Porifera
A phylum of Kingdom Animalia of pore-bearing animals (sponges)
Sessile
Attached by the base to one spot
Regeneration
The process of regrowing a missing body part
Phylum Cnidaria
A phylum of Kingdom Animalia of bag-like body animals with tentacles and two tissue layers (jellyfish)
Tentacle
A long soft appendage, sometimes with suction cups or stinging cells (nematocysts)
Radial Symmetry
A phylum of Kingdom Animalia of flat worms
Dorsal
Top or back
Ventral
Underside or bottom
Bilateral Symmetry
A shape which may be cut into two similar parts
Phylum Nematoda
A phylum of Kingdom Animalia of round worms
Phylum Annelida
A phylum of Kingdom Animalia of segmented worms
Anterior
Front end
Posterior
Rear end
Phylum Mollusca
A phylum of Kingdom Animalia of soft-bodied animals with a muscular foot, and most with a hard shell (mollusks)
Phylum Arthopoda
A phylum of Kingdom Animalia of jointed leg animals with exoskeletons (arthopods)
Exoskeleton
A skeleton on the outside of the body
Metamorphosis
The process of changing shape while developing to adulthood
Larva
An immature form in many kinds of animals; larval insects are also called caterpillars
Pupa
An immature, resting stage of an organism that undergoes complete metamorphosis
Nymph
An immature form of an animal that undergoes incomplete metamorphosis
Phylum Echinodermata
A phylum of Kingdom Animalia of spiny-skinned animals with radial symmetry (star fish)
Phylum Hemichordata
A phylum of Kingdom Animalia of soft-bodied animals with bilateral symmetry and a stomochord (marine worms)
