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Glad to tell you that you answer will be A.
Only Eukaryotic Cells have DNA which is stored inside of the nucleus. If the cell contains no DNA, then it has no need for a nucleus.
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Sexual reproduction produces offsprings that resemble their parents but are at the same time unique genetically.
Peyer patches are lymphoid nodules located in the walls of the small intestine.
Peyer patches are also known as aggregated lymphoid nodules, they are organized in the form of follicles and are round or oval and their surface is free of the villi and depressions that are present throughout the intestinal wall.
Peyer patches mainly consist of B cells and play an important part in the immune system by monitoring intestinal bacterial populations and controlling the development of pathogenic bacteria in the intestines.
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The answer should be 2 because planting trees gives out oxygen and we need oxygen to live