What is the brown structure embedded in the cell membrane? what is the function of this brown structure?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Explain why ecosystem diversity results in species diversity in a healthy biosphere