The distinction between sponges and other animal phyla is based mainly on the absence versus the presence of
a. a body cavity. c. mesoderm
b. a complete digestive tract d. true tissues.

The correct answer is option D. True tissues.

Explanation:

The cell that made sponge does not form the tissue however sponge have cells that play important role and specific for specific function but does not have true tissues.

In other animal phyla cells form tissue or organ or organ systems and called as true tissues.

Thus, the correct answer is option D. True tissues.

telophase and anaphase

1. desertification

2. captive breeding

3. black rhinoceros

4. renewable resources

explanation:

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