Vinegar could usually be added to pickles because the added acid of the vinegar inhibits any sort of bacteria from entering the substance, and this would help keep them fresh for a longer period of time too.
wood- renewable resource that can be burned
oil- spills can destroy aquatic ecosystems
hydroelectric power- uses the kinetic energy of water
nuclear power- creates radioactive waste
coal- burning releases CO2 into the air
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.
