A genetically programmed cell death is a process that can destroy cells that are no longer needed. What is the best method to do this

Apoptosis

Explanation:

In such a case the best method to do this would be Apoptosis. This is one of such a process in which the cells that are no longer needed in a multicellular organism or are instead a threat to the organism itself are destroyed by a programmed cell death. When an embryonic, paddle-shaped hand forms indentations to shape the individual finger it has completed the process of Apoptosis as it destroys the cells in order for new ones to make the shape.

the match duh

explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.