The deepest ocean zone, found in trenches and canyons, is called the hadal zone. find it on the illustration. the few species that live here include tiny isopods, a type of crustacean related to crabs and shrimp and invertebrates such as sponges and sea cucumbers. considering the darkness, depth, cold temperatures, how do these organisms get the food needed to survive? a) they swim to higher layers to find prey for food. b) they undergo chemosynthesis and make their own food. c) they are bioluminescent organisms and they undergo photosynthesis to produce the food they need. d) they are dependent on falling parts of dead or decaying plants and animals, called marine detritus.

this transfer is call conjunction

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there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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