Answer:
The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. Evidence supports the idea that eukaryotic cells are actually the descendents of separate prokaryotic cells that joined together in a symbiotic union.
When h forms a bond with h2o to form hydronium ion, h3o , this bond is called a coordinate covalent bond.
My thought on it is...soil erosion is when the top layer of the earth is somehow washed away by something..blah blah..lol..it could result in the land being a desert, and you can't plant crops cos the land doesn't have the nutrients.. you can reduce it by having a land cover like grass..
sorry my explanation sucks..
1. You can have an infinite amount of proteins from only a few amino acids, it would be all in the way they are tied together.
2. Lipids are not considered polymers because the base units of lipid are not considered monomers
3. carbohydrates have a 5-carbon ring.
Lipids have long tails of fatty acids, CH2