Estuaries are areas where fresh water from rivers meets salt water. As the river drains, it carries much nutrient-rich sediment. Many animal species depend on this food source to provide for their young.
They are kinda like catalysts
I think it the answer is C ( The relationship between the bacteria and the ticks is commensalism, and the relationship between ticks and humans is parasitism.
-- Alina (:
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The Oligocene epoch follows the Eocene epoch.
The Paleogene Period began 56 million years ago and lasted for 23 million years can be divided into three periods: the Paleocene Epoch, the Eocene Epoch, and the Oligocene Epoch, all of which are then divided into their respective smaller eras.
