Is a set of paired statements that can be used to identify organisms.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?