How would the hemoglobin content differ in a person living in philadelphia (elevation: 39 feet) compared to someone living in denver (elevation: 5280 feet)? why? ""

The body is protected against harmful flu viruses by

{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.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?