Unit 8 Exam A Porifera Through Platyhelminthes

Front

What is an example of a Cnidarian in the polyp stage?

Back

Anemone

Front

What does it mean for Platyhelminthes to be acoelomates?

Back

They lack a body cavity.

Front

What is the function of the gastrodermis in Porifera and Cnidaria?

Back

Digestion and respiration.

Front

What is a key difference between Poriferans and Cnidarians regarding their nervous system?

Back

Poriferans and Cnidarians do not both have a simple nervous system.

Front

What are eyespots used for in certain organisms?

Back

Sensing light.

Front

What are the two main body forms of Cnidarians?

Back

Polyp and medusa.

Front

What type of symmetry do Cnidarians exhibit?

Back

Radial symmetry.

Front

What is the primary function of the mesoglea in Cnidarians?

Back

Provides support and structure.

Front

What are the two germ layers found in Cnidarians?

Back

Ectoderm and endoderm.

Front

What is the significance of the term 'acoelomate'?

Back

It refers to animals that lack a true body cavity.