David and his lab partner are dissecting an earthworm during biology lab. they are cutting the earthworm with a scalpel in order to examine the inside of the worm. which of the following safety procedures should they follow while using the scalpel? a. always cut away from yourself and others. b. do not wear gloves to protect your hands. c. do not clean the scalpel after the dissection is done. d. always hold the organism in your hands while cutting.

b

explanation:

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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explanation: