Small intestine
Peyer's patch are small masses of lymphatic tissue found usually in the ileum region of the small intestine. This is an aggregated lymphoid nodules and form an important function in immune system. This allows to monitor bacterial population and prevents the growth of pathogenic flora in the intestine. They are egg shaped lymphatic tissue that are similar to lymph nodes in structure except the absence of connective tissue.
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Cyanobacteria were very simple organisms and performed were an role in changing Earth's early atmosphere. They carried out photosynthesis to produce the materials they needed to grow. In this process, they relesed Oxygen which is needed to sustain life on Earth for Humans and other organisms
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B!
round Yellow
two round yellow pees together will most likely have round yellow genotypes since that's all they can realistically pass on
it allows scientists to determine the source of DNA recovered and use the sample from the mitochondria which has hundreds of copies unlike the two the nucleus holds and it increases the odds of recovering accurate DNA