1. BIO
... of tissue that surround the cavity connect the dorsally and ventrall to form mesenteries, which suspend the internal organs. An acoclomate is a lower invertebrate animal. It does not develop a body cavity. A protostome is a member of one or two distinct evolutionary lines of coeleomates, consisting of annelids ... the plants which were the common ancestors of both groups. The evolutionary origins of plants can go back 430 million years. For example, aquatic plants take their minerals and water directly from their surroundings. Without the amneties of the watery environment, the early plan...
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- Grade Level: High School