Carbohydrate - a simple one at that. They are known as monosaccharides, with '<span>saccharides' simply being another term for carbohydrates </span>
This suggests that the body cavity (coelum) evolved before the lophophore. Protostomes are one of the groups of animals having a true body cavity and are believed to share a common ancestor. They include annelids, mollusks, and arthropods. Lophophore is an organ characteristic of aquatic invertebrates (protostomes) that functions in filter feeding, it consists of a ridge of hollow tentacles bearing cilia, which waft food particles into the mouth.<span />
A predator kills its food organisms faster
Leftover radiation from the big bang is your answer hope i helped