The stroma is the central location of light-independent reactions

Stroma is a big main carrier of a chloroplast that is fluid full and contains enzymes that is used in photosynthesis it uses the products of the light dependent reactions to reduce carbon dioxide to a carbohydrate. In stroma light – independent synthesis portion of photosynthesis takes place and does not directly require solar energy; 

correct answer: biotic and abiotic limitations

carrying capacity is defined as the total number of an organism who can be supported in a given area within the natural resources limit and without harming or degrading the natural, economic or the cultural environment present for the future generations.

carrying capacity is determined by the limiting factors, which are known to affect the natural resources available. it may include water, nutrients, minerals, space, light etc.

explanation:

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the answer to your question is sperm