vertebrates
animals with back bones
invertebrates
animals without back bones`
consumer
an organism that eats another organisms matter
gangilon
a mass of nerve cells
gut
the digestive tract
coelum
a body cavity that contains the internal organisms
bilateral symmetrey
the property of being divisible into symmetrical halves on either side of a unique plane.
radial symmetrey
symmetry around a central axis, as in a starfish or a tulip flower.
Asymmetry
lack of equality or equivalence between parts or aspects of something; lack of symmetry.
Sponges
Sponges, the members of the phylum Porifera, are a basal Metazoa clade as sister of the Diploblasts.
Cnidarians
an aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates.
Flatworms
worms that are flat that can cause disease but yet do good.
Roundworms
The nematodes or roundworms constitute the phylum Nematoda
Mollusks
an invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses
Open circulatory system
pump blood into a hemocoel
Closed circulatory system
pump blood into the vesseles
Annelid worms
The annelids, also known as the ringed worms.
Exoskeleton
a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.
Compound eye
an eye consisting of an array of numerous small visual units, as found in insects and crustaceans.
antenna
things on some insects heads that alow them to feel around.
Metamorphosis
the process of transformation from an immature form to an adult form in two or more distinct stages.
Endoskeleton
an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
Water vascular system
a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.