The correct answer is a - Lipid
Lipids are not considered as macromolecules because unlike proteins, carbohydrates and nucleic acids which polymers, lipids are composed of a single unit made up a glycerol backbone to which two or three fatty acids are linked.
Lipids are not polymers made up of individual subunits called monomers. They contain only one molecule and are not macromolecuels.
Examples of lipids include waxes, steroids, phospholipids and detergents. Lipids are generally hydrophobic and insoluble in water.
To know where it rightfully belongs to. Variation of certain traits is caused by multiple factors of an individual of the same kind. Depending on their physical appearance, their environment and nature of survival.
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Answer:
Compositional Layers
Layer Depth
Crust 0-100km silicates
Mantle 100-2900km iron and magnesium silicates
Core 2900-6370km metals
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You need to set a date for ur goals so u can have a set time and say ok, i have to do this much to get this done, not having a set time gives u lots of time to do it. And if u want to have an effective goal u need to get it done.
The gravitational pull between the two objects increase