On a farm, a group of squirrels collect acorns from an oak tree. Not all the acorns are collected on the ground, the birds can also eat the acorns. These nuts are spread around the land by both the animals resulting in new trees growing on the farm. What level of organization is represented in the example and how do you know?

ecosystem

Explanation:

The level of organization shown in the example is "ecosystem" because the example represnts interaction between two different population with acorns on the land.

Ecosystem is defined as the interaction of groups of organisms in biological domain with abiotic enviornment.

The example, groups of organisms include "squirrels and birds" and abiotic enviornment include "acorns" or "nuts".

Hence, the correct option is "ecosystem".

we would need to see the picture to answer it

thinking it would be physical characteristics