Which of these is not a beneficial way that viruses are used? clean up oil spills

creating transgenic organisms

develop genetic diversity in flowers

gene therapy

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

{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.