It Has Often Been Said That the Next Dominant Animals

Q12: Sand dollars,sea stars,sea cucumbers,and sea urchins all

Q13: The function of the notochord is taken

Q14: Of the mollusks,snails are in the class

Q15: The subkingdom of animals that lack symmetry

Q16: _ are small,aquatic pseudocoelomate organisms that have

Q18: The key evolutionary development seen for the

Q19: The ability of a sponge cell to

Q20: Which of the following represents the more

Q21: Most of the phyla of the animal

Q22: A sponge feeds itself by _,drawing organisms