Class: Turbellaria16 cards

Tagged as: earth, nursing, biology

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2

What kind of Symmetry does "Flat Worms" have?

Bilateral:Left and Right are the same


4

What does Cephalized mean?

When the worms have a sensory structure in the anterior structure.

5

True or False: Worms are always Parasitic?

False Most are but others like Planarians and Earth Worms are not.

6

What are the two types of Parasites are there?

Ectoparasite:On the surface/outside Endoparasite:On the inside


8

What is a cilia?

They are microscopic hairs that propell the planaria through the water

9

List two ways a Planaria can move:

1.Slide on their mucus 2.Swim (using their cilia)

10

How does Planaria feed?

They are scavengers that feed on carion.

11

What is a Pharynx and what is it's function?

The Pharynx is a muscular tube that extends from the mouth (located in the middle of the body) and empties into a branched gastrovascular cavity.

12

What kind of waste does a Flame Cell let off?

Cellular waste and also regulates water.

13

True or False: The Nervous System of a Planaria is more simple than Nerve Net?

False: a Simple Central Nervous System is more complex that a Nerve Net.

14

Cerebral Ganglia is what?

Anterior located cluster of nerves "simple brain" that can learn/memorize.

15

What helps a Planaria see light spots?

Eye Spots, they help see shadows

16

How can a Planaria reproduce?

Asexually: regeneration (in the summer) by pulling completely in half. Sexually: they are hermaphrodites (fall/winter)