Aschelminthes Flashcards
What is the body shape of Aschelminthes?
The body of Aschelminthes is circular in cross-section, hence the name roundworms.
What types of environments do roundworms inhabit?
Roundworms may be free-living aquatic and terrestrial or parasitic in plants and animals.
What level of body organization do roundworms have?
Roundworms have organ-system level of body organization.
What type of symmetry do roundworms exhibit?
Roundworms are bilaterally symmetrical.
What is the classification of roundworms in terms of germ layers?
Roundworms are triploblastic.
What type of body cavity do roundworms possess?
Roundworms are pseudocoelomate animals.
Describe the alimentary canal of roundworms.
The alimentary canal is complete with a well-developed muscular pharynx.
How do roundworms excrete waste?
An excretory tube removes body wastes from the body cavity through the excretory pore.
What is the sexual reproduction characteristic of roundworms?
Sexes are separate (dioecious), meaning males and females are distinct.
In roundworms, which sex is often longer?
Often females are longer than males.
What type of fertilization occurs in roundworms?
Fertilization is internal.
What are the two types of development in roundworms?
Development may be direct (the young resemble the adult) or indirect.
Ascaris
Round worm
Wuchereria
Filaria worm
Ancylostoma
Hookworm
Aschiehelminth
