1. Sandra Cash<br />December 16, 2010<br />Marine Science S1-SCI311-101<br />Assignment 2.5.1 Marine Sediments and Deep-Sea Creatures<br />Part 1: <br />Name of Sediment: Radiolarina ozze sediment<br />Characteristic Description Picture (if applicable) Plankton that forms sediment Radiolarian is the type of plankton that forms Radiolarina ozze sediment. Description of organism when living Radiolarinas, are amoeboid protozoa that produce intricate mineral skeletons, typically with a central capsule dividing the cell into inner and outer portions, called endoplasm and ectoplasm. Type of covering or shell They have skeletons of strontium sulfate. Places where sediment is found This sediment is limited to areas with high biological productivity, such as the polar oceans, and upwelling zones near the equator. The yellow is where the radiolarian ozze is. Thickness of sediment The ooze is found between 300-1000 m. Sometime extending up to 2000 m. Rate of accumulation 0.2-1 cm / 1000 yr <br />Part 2: <br />This scale-less and peculiar marine animal are widely distributed from the Arctic to Antarctic oceans. Its elongate, tadpole-like bodies are similar in appearance to the rattails. Their heads are large with small eyes; their bodies are slender to deep, tapering to a very small tail. Snailfish are scaleless with a thin, loose gelatinous skin. Their teeth are small and simple with blunt cusps. The deep-sea species have prominent, well-developed sensory pores of the head, part of the animals' lateral line system. The habitats chosen by snailfish are as widely variable as their size; they are found in both shallow intertidal zones and at depths of 7,500 metres (24,600 ft) or more, in both cold and warm waters. The diet of snailfish consists primarily of small benthic crustaceans, mollusks, polychaete worms, and other small invertebrates.<br />