Contrast invertebrates with vertebrates

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Reference no: EM134034253

Assignment:

Concept Check 23.1

1. What distinguishes an animal from animal-like protists (protozoans)?

2. Contrast invertebrates with vertebrates.

3. Explain the difference between the blastula and gastrula stages of development in most animals.

Concept Check 23.2

1. Describe how a sponge feeds.

2. List three methods of sponge reproduction.

3. Describe two characteristics that vary widely in the sponge phylum

Concept Check 23.3

1. What are two characteristics common to all cnidarians?

2. Describe the differences in body structure between a hydra and a marine jelly.

3. Describe the function of cnidocytes and nematocysts.

Concept Check 23.4

1. Compare and contrast bilateral symmetry with radial symmetry.

2. List the three flatworm classes and give an example of each.

Concept Check 23.5

1. How is a roundworm's digestive system different from that of a flatworm?

2. Give an example of roundworms interacting with other organisms.

3. Describe the appearance of a rotifer.

Reference no: EM134034253

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