Lesson 20 Flashcards
Flukes and planarians have a digestive system for what?
Taking in food and breaking it down for energy.
How do tape worms get nutrients?
By absorbing them from their host.
What is a ganglion?
Mass of nerve cells that functions like a simple brain.
Do flat worms have a circulatory system?
No
What is the cirtellum?
A barrel shaped swelling around the body that assists in reproduction. Located closer to the head.
Do earthworms have a circulatory system?
Yes
Are all three phylas of worms hermaphrodites?
No
What are worms eye spots used for?
Sensing light
Which of the worms has the most developed nervous system?
Segmented worms
Hermaphroditic worms have…
Both male and female reproductive organs
A ganglion is…?
A mass of nerve cells that function like a simple brain
A complete digestive system is one that….?
Has both a mouth and an anal opening
Tape worms are
Flat
Round
Primitive
Segmented
Flat
Leeches are
Flat
Round
Primitive
Segmented
Segmented.
Flukes are
Flat
Round
Primitive
Segmented
Flat
