The lowest level in the hierarchy of the organization of living things is: D. Tissues.
What is a living thing?
A living thing is also referred to as a living organism and it can be defined as an organism that has an organized structure, cells, and possesses and show the characteristics of life.
What is structural organization?
A structural organization can be defined as a hierarchy of the organization of both simple and complex biological structures that define life processes in all living things, especially based on a reductionist approach from the lowest level (least) to the highest level (most complex).
From the lowest level (least) to the highest level (most complex), the organ systems that make up the human body include the following:
In conclusion, we can deduce that tissues are the lowest level in the hierarchy of the organization of living things.
Read more on organ systems here: https://brainly.com/question/18050570
