Chapter 34: Coelomate Invertebrates

Question 0

Septa

Answer 0

Internal partitions dividing segments of annelids

Question 1

Lophophorates

Answer 1

Bryozoa & Brachiopoda

Question 2

Polychaetes (of Annelids) have paired, fleshy, paddle-like lateral projections called ________

Answer 2

parapodia

Question 3

In most annelid groups, each segment possesses bristles of chitin called ______

Answer 3

chaetae/setae

Question 4

Annelids have common __________

Answer 4

closed circulatory system

BUT segmented excretory system.

Question 5

Characteristics of leeches:

Answer 5

Usually lack chaetae
Suckers at both ends of the body
Clitellum (glandular section of body where eggs are deposited) present during breeding season

Question 6

Circular of U-shaped ridge around the mouth of a braciopod or bryozoan is called: _______

Answer 6

lophophore

Question 7

Shell of a mollusc is secreted by its: _____

Answer 7

mantle

Question 8

Phylum containing exclusively colonial animals:

Answer 8

Bryozoa

Question 9

Arthropoda charateristics:

Answer 9

Segmentation
Jointed legs

Exoskeleton made of chitin and protein

Question 10

Marine molluscs with shells composed of eight separate plates comprise the mollusc class _________

Answer 10

Polyplachophora

Question 11

Tubeworms, lugworms and scaleworms are members of which annelid class?

Answer 11

Polychaeta

Question 12

The three tagmata of an insect’s body are:

Answer 12

the head, thorax and abdomen.

Question 13

Echinoderms have what type of skeleton?

Answer 13

Endoskeleton

Question 14

Most molluscs are:

Answer 14

separate sexes

Question 15

How many shells do gastropods have?

Answer 15

Single