The building blocks of proteins are known as amino acids. These acids are not only the building blocks of proteins--they are also important in many other chemical and biological processes.
Answer:
A. The hydrophilic head groups of the lipid molecules are exposed to the outside of the cell and the cytoplasm, which is a water-like environment. The hydrophobic tails form an oily layer inside the membrane that keeps water out of the cell
selective breeding gives you certain traits that you want in The Offspring
A. geographic range because there is a range of area where a species can thrive but after you reach a certain point the climate and environment changes and species will no longer be able to withstand it. Climate, weather, and sometimes habitat would all be considered abiotic factors.
