Lophophores - Study guides, Class notes & Summaries

What class are mussels? - Bivalvia What doesn't show strong cephalization? - Jellyfish What is cephalization? - the concentration of sense organs, nervous control, etc., at the anterior end of the body, forming a head and brain, both during evolution and in the course of an embryo's development. What are the major requirements for animal life? - Gas exchange, Nutrition, disposal of cellular wastes, reproduction and development What best describes comb jellies? - They are creatures di...

Open ocean organisms that live at or near the surface live in the: - Epipelagic Plankton that are primary producers are known as: - Phytoplankton Which of the following is NOT a crustacean zooplankton? - Ctenophores A type of photosynthetic bacteria is known as: - Cyanobacteria Growth of phytoplankton is mostly controlled by: - Nutrients and light Organisms the spend only part of their life cycle as plankton are called? - Meroplankton Planktonic organism that float just beneath surf...

Invertebrates️️Animals without a backbone. About 95% of known animal species. Calcarea and Silicea️️phylum that includes sponges; no symmetry, tissues, body cavity, organs, nervous system; basal animals; mostly marine; contain spicules; most are hermaphrodites; free-swimming during larval stage and sessile (non motile) as adults; suspension/filter feeders Suspention feeders️️small and large organisms that use filtering and trapping techniques to collect minute food particles su...

How do animals obtain nutrients? - Using directed movement to find food. Then ingest prey and digest it with their bodies. What are the traits that make animals unique (i.e., that are not seen in other organisms)? - Muscle and Nervous Cells What organism is the evolutionary ancestor of animals, and what evidence do we have for this relationship? - Choanoflagellates. They are identical to "collar cells" in sponges, which is the basal group of animals. What phylum is the basal (earliest evolv...

Describes the necessary structures and functions that need to be identified and understood in a variety of Annelids and lophophores.