Unit 4 - Animal Phyla Flashcards
Rapid fire questions on characteristics of animal Phyla
The group of animals in the Kingdom Animalia without a vertebral comumn
Invertebrates
Group of animals of the Kingdom Animalia with a vertebral column
Vertebrates
The characteristics of an animal that shows that it can be cut in one or more planes to obtain two mirror images
Symmetry
The characteristic of an animal that shows that it cannot be cut in any plane to obtain two mirror images
Asymmetrical
Type of symmetry present in an animal that can be cut in more than one vertical plane through its centre to obtain two mirror images
Radial symmetry
The type of symmetry present in an animal that can only be cut in one vertical plane through its centre to obtain two mirror images
Bilateral symmetry
A concentration of nerve cells at the anterior of the body
Cephalisation
The outer germ layer in a developimg animal embryo
Ectoderm
Inner germ layer in a developing animal embryo
Endoderm
The germ layer between the ecto- and endoderm on a developing animal embryo
Mesoderm
The characteristic of animals which indicates that the embryo has two germ layers
Diploblastic
The non-cellular jelly layer that separates the endo- and ectoderm
Mesoglea
The characteristic of animals which indicates that the embryo has three germ layers
Triploblastic
An interior fluid-filled cavity in the mesoderm of triploblastic animals
Coelom
Triploblastic animals with no coelom in the mesoderm
Acoekomates
Triploblastic animals which have a coelom but it is not only surrounded by mesoderm tissue
Pseudo-coelomates
Triploblastic with a true coelom in the mesoderm
Coelomates
The intake of foof
Ingestion
The removal of undigested remains
Egestion
The type of digestive process which occurs when new food can only be taken in once all food already ingested has been digested and the undigested remains are egested
Discontinuous
The type of digestive tract occurring in coelomate animals that have a mouth and an anus
Through gut
The type of digestive process that can continue during ingestion and digestion
Continuous
The phylum in the animal kingdom which includes sponges
Porifera
The level of organisation in the phylum Porifera where no tissue layers are present
Cellular level of organisation
The sedimentary lifestyle of sponges, where they are attached to a substrate
Sessile