The process by which pneumococcus transfers dna between living type rii and heat-killed type siii cells is known as

Explanation:

1. Bacterial transformation: it is a process of horizontal gene transfer in which some bacteria take up foreign genetic material (naked DNA) from the environment.  

2. In this process, Bacteria Pneumococcus transfers DNA between living type RII bacteria  and heat-killed type SIII bacteria and is known as  transformation.

3. Those bacteria which have capacity to take up free DNA, Such bacteria are termed as competent cells.

3. In 1928, Griffith done this experiment and called it as transformation.

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity