Bootlace and Annelid Worms

Question 1

What phyla do bootlace worms belong too?

Answer 1

Nemertea

Question 2

What phyla do annelid worms belong too?

Answer 2

Annelida

Question 3

A few characteristics of the phylum nemertea- Greek nymph.

Answer 3

Bootlace or Ribbon worms
Stretchy
Marine, freshwater, some terrestrial environments
Feed with hollow muscular PROBOSCICS EVERTS FROM RHYNCHOCOEL .
Carnviores
Mouth and anus
Protonephridia

Question 4

What is the name of the giant bootlace worm?

Answer 4

Lineus longissimus

Question 5

Examples of Annelida - Little ring.

Answer 5

Lumbricus, Hirudo, Nereis, Arenicola

Question 6

Featured of Annelid worms

Answer 6

22,000 species
Metameric segmentation divided internally by septa
Nephridium
Flatworms can undulate and swim

Question 7

What are the ways in which annelids move?

Answer 7

Earthworms- burrow and crawl
Ragworms- swim lateral undulations
Lugworms- irrigate in burrows
Leeches- swim by up-down undulations

Question 8

Classes of Annelids

Answer 8

Oligochaeta - earthworms
Hirudinea- leeches
Polychaeta- all marine

Question 9

Oligochaeta features

Answer 9

4 bundles chaetae
Sac for eggs at front of citellum
Cocoon forms round citellum and shed
Two worms lie side by side head to tail and exchange sperm

Question 10

Hirdudinea

Answer 10

Leeches
No chaetae
3 jaws
Secrete hirudin

Question 11

Polychaeta

Answer 11

Many bristles
Some carnivorous with toothed jaws
Some filter prey with feathery tentacles
BEAR PARAPODIA

Question 12

Environmental sex determination

Answer 12

Isolated female, chemical from larger female triggers change to male

Question 13

Eptioky

Answer 13

Segments swell and fill with gametes