Explain how predator-prey interactions influence both predators and prey. Define symbiosis
Describe two types of relationships in a community
The cookie-cutter shark feeds by taking a bite of flesh out of large whales and fish. The shark does not kill the larger fish it feeds on. Is the shark a predator or a parasite? Why?

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liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.