These are all correct! Hope this helps :)
Both animal fats and plant oils are made up of glycerol and fatty acids. It is actually a carboxylic acid that contains a hydrocarbon chain and also a terminal carboxyl group. It can be either in saturated or unsaturated form. I hope that this answer has come to your help.
My Answer: <span> lower than terrestrial planet densities, lower than the density of rock.
Hope I helped! :D
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Benthic organism i think!!
Clearly the onion cell consists of a cell wall, because an onion is a multicellular plant organism.
Multicellular means; consisting of many cells.