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convolutions of the inner membrane of mitochondria.
all types of waste that pose a significant threat to people and the environment.
a prolonged period of low rainfall which has a negative effect on plant, animal and human life...
coiled nephron tubule that extends from the loop of Henlé to the collecting duct.
structure surrounding plan tcells i tgives cells rigidity and strength.
a strong ring of smooth muscle at the end of the pyloric canal which lets food pass from the...