Where do organisms get the monomers to make lipids?

Is the lithosphere stronger than the Aesthenosphere? What are the functions of bile acids? What would cause the lights in a room to start making a faint buzzing sound that starts and stops continuously? What will the voltage drop on a 1.5 mm cable run 1.5 kilometres be? How many chromosomes are there in the zygote of a crayfish whose diploid number is 112? Why do Japan get so many volcanoes? What are the ordered base pairs along a gene called? What is the atomic weight of plutonium? Did Gregor Mendel find patterns in the way traits are inherited? What is a howler monkeys ecosystem? In volcanic areas groundwater heated by magma is a source of what? What is gravity role in our solar system? What lines runs east and west? Is the red stars the youngest one? How many electrons in one proton? Do ice cubes float longer in flat pop or carbonated pop? Why is there a sharp line separating the indomalayan and australasian ecozones? Which are the hottest and coldest zones of the earth respectively? How is the heliocentric model similar to the geocentric model? What is a chemical particle?

Where do organisms get the monomers to make lipids?