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Although there are a limited number of amino acids many different types of proteins exist because..

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.