The boxes show parts of the body at different levels of organization. What statement about the chart is true? A) P is at the highest level of organization. B) Q is at the lowest level of organization. C) R is at the highest level of organization. D) S is at the lowest level of organization.

From simplest to most complex, the levels of organization is as follows:

atom - -> compounds and / or molecules - -> organelle - -> cell - -> tissue - -> organ - -> organ system - -> organism - -> population - -> community - -> ecosystem - -> biosphere

Explanation:

An atom is the simplest level among the levels of organization of life. It is made up of only a single element.

A compound and a molecule are composed of two or more atoms bonded together.

A cellular organelle or a part of a cell is made up of several similar and different molecules bonded or formed together.

A cell is the simplest unit of life and is composed of organelles.

A tissue is a group of similar cells with the same function and goal.

An organ is a group of similar tissues with the same function and goal.

An organ system is a group of different organs but with the same function and goal.

An organism is the totality of all the different organ systems functioning all together to support life and balance.

A population is a group of individuals or the same organisms or species living together.

A community is a group of different populations living together.

An ecosystem is the combination of different communities living together, including the non-living things in their habitat and their relationships.

The biosphere is the totality of all living and non-living things as well as the Earth's regions, such as the lithosphere, geosphere, hydrosphere, and atmosphere, and their relationships.