Lesson 20 Lecture notes Flashcards
Flukes are
- Platyhelminthes
- Nematoda
- Annelida
- Platyhelminthes
Flukes are
- Free living
- parasitic, requiring two hosts
- parasitic, requiring one host
- parasitic, requiring 2 hosts
Flukes have
- a simple digestive system, one opening
- a simple digestive system, two openings
- a simple digestive system, one opening
Flukes have what sort of nervous system?
Simple, ganglion with two nerve cords
Flukes have what sort of circulatory system?
none
How many hosts do flukes need?
two
Flatworms are
- Platyhelminthes
- Nematoda
- Annelida
- Platyhelminthes
Flatworms are
- Free living
- parasitic, requiring two hosts
- parasitic, requiring one host
- parasitic, requiring two hosts
Flatworms have
- a simple digestive system, one opening
- a simple digestive system, two openings
no digestive system- they absorb nutrients from their host
Flatworms have what sort of nervous system?
Simple, ganglion with two nerve cords
Flatworms have what sort of circulatory system?
none
How many hosts do flatworms need?
two
Planarians are
- Platyhelminthes
- Nematoda
- Annelida
- Platyhelminthes
Planarians are
- Free living
- parasitic, requiring two hosts
- parasitic, requiring one host
- Free living
Planarians have
- a simple digestive system, one opening
- a simple digestive system, two openings
- a simple digestive system, one opening
Planarians have what sort of nervous system?
Simple, ganglion with two nerve cords
Planarians have what sort of circulatory system?
none
What do planarians have that Flukes and Flatworms don’t have?
eyespots
Annelida have smooth skin because —–
gas exchange- breathing
Segmented worms have a small
brain
Nematoda and Annelida look like
a tube within a tube (Annelida have rings)
Both Nematoda and Annelida reproduce —–
sexually, though Annelida are hermaphroditic