Sponges And Acoelomates

Question 1

Cladorhizids

Answer 1

A canivorous family of demospongia

Question 2

Choanoblasts

Answer 2

Multiple collar bodies/flagella associated with a single nucleus

Question 3

Syncytial

Answer 3

An epithelium or tissue characterized by cytoplasmic continuity, or a large mass of cytoplasm not separated into individual cells and containing many nuclei.

Question 4

Trabecular reticulum

Answer 4

Forms an extremely thin giant multinucleated cell that forms the outer skin (called the dermal membrane), and acts like a nervous system, conveying impulses to all parts of the body

Question 5

Sclerocytes

Answer 5

secrete spicules

Question 6

Cephalisation

Answer 6

Sense organs concentrated in head

Question 7

Pelagic

Answer 7

Inhabit the upper layers of the sea

Question 8

Neodermis

Answer 8

External cuticle like body covering in platyhelminthes

Question 9

Proteolytic enzymes

Answer 9

Extracellular digestive enzyme secreted in platyhelminthes intestine

Question 10

Proboscis

Answer 10

Can be thrusted outwards to quickly grasp prey in nemertea

Question 11

Rhynchocoel

Answer 11

Houses probiscis. A coelem

Question 12

Gravid proglottid

Answer 12

Mature proglottid. Houses about 80 to 100, 000 eggs.

Question 13

Spongocytes

Answer 13

Secrete spongin

Question 14

Collencytes

Answer 14

Secrete collagen

Question 15

Flame cells

Answer 15

Part of the excretory system

Question 16

Nemertea

Answer 16

Ribbon worms, proboscis worms

Question 17

Taenia Solium

Answer 17

Pork Tapeworm

Question 18

Cysticerci

Answer 18

Young tape worms

Question 19

Cysticercosis

Answer 19

Cysticercosis is a parasitic tissue infection caused by larval cysts of the tapeworm Taenia solium

Question 20

Taenia sagina

Answer 20

Beef tape worm

Question 21

Oncosphere larvae

Answer 21

Hatched from gravid proglottid egg burrow into intestinal wall of cow and carried to muscle

Question 22

Cysticerus stage

Answer 22

Bladder worm. Scolex is inverted in a sac

Question 23

Microtrioches

Answer 23

Projections on the outside of cestoda, like microvilli, increase absorption of food.

Question 24

Prohaptor and opisthaptor

Answer 24

Structure in monogenea used for attachment to fish gills and feeding

Question 25

Schistosome dermatitis other name and description

Answer 25

Cercarial dermatitis and Inflammory response caused by a cercariae seeking a bird that entered the human skin. Swimmer’s itch

Question 26

Blood fluke

Answer 26

Schistosoma mansoni

Question 27

Miracidium larvae

Answer 27

Trematoda - Hatches inside a snail from egg

Question 28

Sporocyst

Answer 28

Develops from miracidium larvae

Question 29

Rediae

Answer 29

Produced asexually from sporocysts

Question 30

Cercariae

Answer 30

Produced from redia

Question 31

Metacercarial cysts

Answer 31

Produced from cercarciae boring into fish and encyst in muscle tissue

Question 32

Metacercariae

Answer 32

Hatch from cercariae in metacercarie cysts

Question 33

Clonorchis Sinensis

Answer 33

Chinese liver fluke

Question 34

Copulatory groove

Answer 34

Blood flukes, male have and females slide in

Question 35

Rheoreceptors

Answer 35

Sense direction of water

Question 36

Protonephridia

Answer 36

Flame cells

Question 37

Weirs

Answer 37

Tube around flame cells