Grade aa eggs are nearly perfect
Assuming this is multiple choice, the answer would be "niche". An organism's niche is where that certain organism fits into an ecosystem, or what their part to play is.
From all of the things to choose the one that isnt negative in its way is B. releases carbon
Cytoplasm is H
Lysosome E
Mitochondria F
Centriole A
Endoplasmic reticulum G
Vacuole M
Cell membrane D
Nucleus J
Ribosome L
Nuclear membrane C
Golgi apparatus B
Vesicle K
Nucleolus I