Trematodes (General)

Question 1

True or False: ALL Trematode are Hermaphroditic.

Answer 1

False. The Schistosoma spp. have seperate reproductive system.

Question 2

What is the opening on the egg as exit of the 1st larval stage known as?

Answer 2

Operculum

Question 3

What is the 1st larval stage known as?

Answer 3

Miracidium

Question 4

True or False: Trematodes are without a circulatory system.

Answer 4

True.

Question 5

What makes governing of excretory systems possble?

Answer 5

Flame cells, excretory tubules.

Question 6

The intestinal ceca may be described as?

Answer 6

Simple or Unbranched
Branched
Wavy or succular

Question 7

Mannor of reproduction except for Schistosoma spp.

Answer 7

Self fertilization

Question 8

The two type of suckers and their purpose.

Answer 8

Oral Sucker - Feeding
Ventral Sucker (acetabelum) - attachment
Both are used for specie identification

Question 9

True or False: Trematodes have no anus.

Answer 9

True. Waste is secreted in the surroundings.

Question 10

What governs their nervous system?

Answer 10

Ganglia / gangreen

Question 11

It is the infective stage of the Schistosoma spp.

Answer 11

Cercaria

Question 12

The infective stage of most Trematode spp. except Schistosoma spp.

Answer 12

Metacercaria