Animal Biodiversity -Do Eun Flashcards
What is decomposition?
It is the breaking down of dead plant and animal matter to simpler chemical substances.
What is the role of invertebrates?(name three)
- act as pollinators
- decompose dead organic material
- aerate the soil
Name the difference between the acoelomate and coelomate?
Acoelomate has no cavity(coelom) in the mesoderm
But coelomate has a true cavity(coelom) in the mesoderm.
What is ingestion?
It is the intake of food
What is egestion?
It is the removal of undigested remains
What is cephalisation?
It is the concentration of nerve cells at the anterior end of the body.
Name the disadvantage of radial symmetry.
The major disadvantage of radial summetry is that locomotion is slow and ineffecient.
Which type of symmetry does triplobastic have?
It is the bilateral symmetry.
What is ectoderm and an endoderm?(type of layers)
Ectoderm is and outer germ layer of the tissue
and an endoderm is an inner germ layer of the tissue.
What does the mesoderm develop?(tissue/organs)
Epithelial lining of digestive tract
Where does coelom develop? (the type of germ layer and the type of embryo)
It develops in the mesoderm of triplobastic
Which type of coelom does not contain a through gut?
Acoelomate
