Routt Platyhelminthes

Give three common groups of Phylum Platyhelminthes.

• Roundworms, Tapeworms, and Flukes.

• Flatworms, Pinworms, and Flukes.

• Roundworms, Pinworms, and Flukes.

• Flatworms, Tapeworms, and Flukes.

Tags

NGSS.MS-LS4-2

What percent of flatworm species are parasitic?

• 40%

• 60%

• 80%

• 100%

Flatworms have _____ symmetry.

• Laterian

• Radial

• Bilateral

• "no symmetry."

Describe the coelom of Platyhelminthes.

• Large Coelom Ventral to the Pharynx.

• They don't have a coelom.

• Small Coelom Ventral to the Pharynx.

• Large Coelom Dorsal to the Pharynx.

Describe the respiratory system of Platyhelminthes.

• Advanced respiratory system with gills, and bronchioles.

• They don't have one.

• Primitive respiratory system with simple gills.

• Primitive respiratory system with simple bronchioles.

Describe the skeletal system of Platyhelminthes.

• Calcium Spicules between cells.

• Osteocytes secrete layers of calcium within the mesenchyme.

• They don't have one.

• Calcium corralite cup is secreted from the lower body.

How many embryonic layers does Platyhelminthes have?

• Two

• Three

• Four

• They don't have one.

Describe the segmentation of Platyhelminthes.

• It has true segmentation.

• It doesn't have true segmentation.

• Platyhelminthes is doubly segmented.

• Platyhelminthes is doubly semi-segmented.