Phylum Platyhelminthes, Class Turbellaria
18 Questions
| Total Attempts: 147
Today, we’ll be looking at another member of the phylum Platyhelminthes; the Turbellaria! These are members of the flatworm phylum and are not exclusively parasitic. What do you know about them? Let’s take a look!
Questions and Answers
- 1.How many species are found in the class turbellaria
- A.
Over 200
- B.
Over 300
- C.
Over 400
- D.
Over 450
- 2.Most in the class Turbellaria are ____ cm up to ___ cm
- A.
1, 50
- B.
1, 30
- C.
1, 100
- 3.Species in the class turbellaria are _________ and predators.
- 4.Rhabdites are ___ like specialized ________ cells, that form the protective _______ sheath.
- 5.Turbellarians have _______ glands and ________ glands. The first attaches to substrates. The latter releases a chemical to dissolve sticky substrate.
- 6.Turbellarians move by ______ using cilia and/or muscular ________.
- 7.Digestion in turbellarians is partly _______; enzymes secreted from _________ glands break down food outside the body.
- 8.Waste and gas exchange occurs by ________ through the body wall.
- 9.___________ turbellarians are in osmotic balance with their environment .
- A.
Freshwater
- B.
Marine
- 10.Freshwater turbellarians are ____________ with their environment
- 11.The turbellarians nervous system ranges from primitive ______ ___ to a ______ like system.
- 12.Have sensory and ______ neurons and they are capable of integrating and responding to _______.
- 13.________ are sensory lobes projecting from the side of the head containing _______ receptors.
- 14.Turbellarians have ______ which are photosensitive areas containing ______ receptors.
- 15.During asexual reproduction, _______ fission is used that creats two new animals called _____.
- 16.Reproductive organs are __________ in orgin.
- 17.Typically ______ __________ with direct development.
- 18.Examples of Turbellarians are:
- A.
Schistosomes
- B.
Dugesia
- C.
Metacercaria
- D.
Convaluta
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