Animal Flashcards
(18 cards)
What are Invertebrate Phyla?
Invertebrate Phyla range from Porifera to Echinodermata.
What are the characteristics of Porifera?
Porifera are porous and have a body that consists of a hollow tube with many pores for water entry and a single large opening for water exit.
What is the digestive structure of Cnidaria/Coelenterata?
Cnidaria/Coelenterata have a two-layered body wall enclosing a cavity (coelenteron) where digestion occurs, with a single opening called the mouth.
What are the characteristics of Platyhelminthes?
Platyhelminthes have a flat, ribbon-like unsegmented body, are acoelomate, and have an alimentary canal with one opening serving as both mouth and anus.
What are the characteristics of Nematoda?
Nematoda have a round, cylindrical, unsegmented body, are pseudocoelomate, and possess an alimentary canal with two openings (mouth and anus).
What are the characteristics of Annelida?
Annelida have a cylindrical, ring-like segmented body, are coelomate, and have an alimentary canal open at both ends.
What are the characteristics of Arthropoda?
Arthropoda have jointed limbs, with one pair on some or all body segments, and undergo moulting.
What are the characteristics of Mollusca?
Mollusca have a soft, unsegmented body protected by a hard calcareous shell and a single muscular foot for locomotion.
What are the characteristics of Echinodermata?
Echinodermata have an unsegmented body covered by a spiny exoskeleton, move with tube feet, and exhibit radial symmetry.
What defines Chordata?
Chordata have a notochord present in the mid-dorsal axis, which may be replaced by a backbone in vertebrates.
Give an example of Porifera.
Bath Sponge, Sycon
Used in living.
Give an example of Cnidaria.
Jellyfish, Sea anemone.
Give an example of Platyhelminthes.
Planaria
Most are parasitic.
Give an example of Nematoda.
Ascaris, Hookworm.
Give an example of Annelida.
Leech, Earthworm
Economic importance.
Give an example of Arthropoda.
Centipede, spider.
Give an example of Mollusca.
Snail, Octopus.
Give an example of Echinodermata.
Starfish, Sea urchin.
