Which of these is an ecosystem? a. lakesb. all of the fish in lake eriec. lake erie and everything living in itd. the producers found in lake erie

The correct answer is Lake Erie and everything living in it

Explanation:

Ecosystem simply refers to different species of organisms living together and their RELATIONSHIP with their environment.

So, the entire species of organisms (plants, animals, microorganisms etc) living together in the aquatic environment of Lake Erie defines an ecosystem.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

not sure if this what   you'r looking for would be percent composition