P L A T Y H E L M I N T H E S
dorsoventrally flattened, leaf like or tapelike. It is without true segments
Rod shaped structures, the _________________, are present in the epidermal cells of the living Platyhelminthes. They are protective and used in food capture.
The fluid in the parenchymal network maintains the body shape. It is called __________________
flame cells (solenocytes/protonephridia)
It consists of peculiar ___________________________________ which are meant for excretion and osmoregulation.
The nervous system is _______________. It consists of the brain and two main longitudinal nerve cords connected at intervals by transverse commissures.
These animals are generally _________________, and the reproductive organs are well developed. The fertilization is cross and internal. In tapeworms self fertilization is found. Asexual reproduction by transverse binary fission occurs in some flatworms.
Flatworms (Platyhelminthes) generally represent this level having ___________ such as eyespots and reproductive organs, but their reproductive organs are organized into level 5 an organ system.
- This means there is only one plane of symmetry (one way you can slice the animal in half and produce two pieces that are mirror images of one another).
composed of three fundamental cell layers
Their shape comes from the fact that they, unlike earthworms, have no coelom (otherwise known as a fluid-filled body cavity). Therefore, Platyhelminthes are ____________________