Structure and Habits Flashcards
1
Q
Important Note
A
We will discuss the anatomy and physiology of annelids using Lumbricus (earthworm) as as example.
2
Q
Where do earthworms live?
A
- In the soil.
- They burrow in loose soil by pushing soil aside.
- They eat their way through compact soil.
3
Q
What do earthworms eat?
A
Mainly decayed organic matter, bits of leaves & vegetation and animal matter.
4
Q
Their ventral side is _____ than the _____ dorsal side.
A
- flatter
- rounded
5
Q
The anterior end _____ to a point & the posterior end is more _____ .
A
- tapers
- blunt
6
Q
What is the body covered by?
A
a thin cuticle
7
Q
To survive, their body must remain _____ .
A
moist
8
Q
Most segments bear _____
A
4 pairs of setae
