This is why it’s important to protect echo systems: Ecosystems are essential to our well-being and prosperity as they provide us with food, clean air and fresh water. Ecosystems also represent an exceptional source of outdoor recreation opportunities. The functions performed by ecosystems that increase our well-being are called ecosystem services.
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The purpose of incubating unopened plates is to check in there is contamination in the media preparation phase.
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Mutualism, this happens when both organisms benefit. Good luck on whatever your doing mate, have a great day.
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Thymosin is The hormone that stimulates the development of the immune system and the production of lymphocytes