Question

1. what is the simplest level at which life may exist?

Explanation:

In the context of biology (a subfield of Natural Science), the cell is considered the simplest level at which life can exist. Cells are the basic structural and functional units of all living organisms. They can perform all the essential processes of life such as metabolism, growth, reproduction, and response to stimuli. Organelles and molecules are components of cells or non - living (in the case of isolated molecules) and are not capable of independent life. Tissues are made up of groups of cells and are more complex, so they can't be the simplest level of life.

Answer:

The cell is the simplest level at which life may exist.