Question

Which of the following would be an example of an ecosystem?

a. All of the organisms living in a lake together with the organisms that feed on them.
b. The microorganisms living inside your stomach.
c. The soil, water, and rocks in a desert together with the atmospheric conditions.
d. All of the organisms living in a lake together with their physical environment.

Answer 1

An ecosystem includes both the biotic community (living organisms) and the abiotic factors (non-living elements like water and soil) in a certain area. 'All of the organisms living in a lake together with their physical environment' exemplifies an ecosystem because it integrates both components.

Step-by-step explanation:

An ecosystem is a community of living organisms and their interactions with their abiotic (non-living) environment. This includes not only the biotic factors, such as all the populations in a habitat like plants, animals, fungi, and micro-organisms, but also the abiotic factors, which encompass elements like temperature, water, sunlight, soil, and air. Regarding the options provided, an example of an ecosystem would be "All of the organisms living in a lake together with their physical environment." This encompasses the biotic community in the lake, including fish, plants, and microorganisms, as well as the lake's water, sediment, and associated abiotic elements.