|
|
|
4
|
Digestive system that has two openings
|
|
5
|
Blood is free flowing through out the organs in the system
|
|
9
|
Reproductive units
|
|
11
|
Digestive tract with one opening
|
|
13
|
Larval stage of annelida and echiura
|
|
14
|
Group of annelids with a clitellum
|
|
15
|
An organism with three tissue layers
|
|
16
|
Phylum containing organisms that have no mouth or gut. Live in tubes
|
|
17
|
Body cavity that is only partially lined with mesoderm
|
|
18
|
Free-living carnivorous platyhelminthe group
|
|
19
|
Outer tissue layer
|
|
|
|
|
|
|
1
|
Parasitic platyhelminthe group with no digestive tract
|
|
2
|
Phylum that contains organism with a retractable proboscis
|
|
3
|
Parasitic platyhelminthe with oral sucker
|
|
4
|
Blood is transported within vessels throughout the system
|
|
6
|
Group of anelids and parapodia
|
|
7
|
The lining of the body of round worms, composed of protein
|
|
8
|
Phylum of organisms that show nerve cord and segmentation
|
|
10
|
Tissue layer that consists of the muscles, blood and heart
|
|
12
|
Inner tissue layer
|
|
|
|
