Chapter 34 -4

Question 1

Earth worms are in which class, phylum?

Answer 1

Oligochaeta

Annelida

Question 2

Leeches are in which class, phylum?

Answer 2

hirudinea

annelida

Question 3

What are marine polychaete worms?

Answer 3

predatory clam/featherduster worms
live in tube burrows
suspension feeder

Question 4

What are the characteristics of marine polychaete worms?

Answer 4

biting jaws
parapodia for locomotion & respiration
ciliated mucous coated feather-like radioles around mouth

Question 5

What are the characteristics of oligochaete earthworms?

Answer 5

soil dwellers
setae for locomotion
pharynx, esophagus, crop, gizzard, & intesitne w/ typhlosole (folds)

Question 6

What are oligochaete earthworm’s reproduction like?

Answer 6

hermaphroditic
male -testes, seminal vessicles, sperm ducts
female - ovaries, oviducts, & seminal receptacles

Question 7

How do oligochaete earthworms reproduce?

Answer 7

clitellum secretes mucous to protect sperm & eggs & forms cocoon

Question 8

What are the characteristics of class hirudnea/leeches?

Answer 8

live in most warm moist habitats

2 suckers for locomotion (no setae)

Question 9

What is inside leeches?

Answer 9

radula and specialized salivary glands - anticoagulant & anesthetic, used in limb reattachments

Question 10

What phylum are the joint-legged animals in?

Answer 10

Arthropoda