3. Which of the following occurred before the Cambrian Explosion?

4. The simplest animals to have body symmetry are?

5. Look at figure 26-1. The cladogram suggests that the Cambrian Explosion most likely took place after the development of which characteristic?

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Briana Cabrera

18 February, 00:18

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Kathryn Arias · Answer 1

3 Some animals demonstrated signs of segmentation and bilateral symmetry.

4 cnidarians.

5 three germ layers.

3. Which of the following occurred before the Cambrian Explosion?4. The simplest animals to have body symmetry are?5. Look at figure 26-1. The cladogram suggests that the Cambrian Explosion most likely took place after the development of which characteristic?