Answer: The Himalayas
Explanation: The Himalayas are the world's tallest mountains. They are forming as two continents collide. The Appalachian Mountains are the remnants of a larger mountain range.
D. is a recent development resulting from the burning fossil fuels
Phospholipids all have a hydrophilic head (phosphate and specialized group in red) and a hydrophobic tail (glycerol and fatty acids in yellow).
Glycerophospholipids correspond to the combination of glycerol, two fatty acids (in yellow), a phosphoric acid and alcohols or amino acids. Alcohols or amino acids give the identity and characteristic of glycerophospholipids. Among the amino acids we find serine and among the alcohols we find inositol, ethanolamine and choline; phosphatidyl serine, phosphatidylinositol, phosphatidyl ethanolamine and phosphatidyl choline are thus obtained.
Answer:
A) Origin and development.
Explanation: