Examlex
Sigmoidoscopy or colonoscopy is recommended to screen for ____________ cancer.
Earth's Ecosystems
Varied and complex communities of living organisms interacting with each other and their non-living environments across the Earth.
Earth Layers
The division of the Earth's interior into distinct layers, including the crust, mantle, and core, each with its unique properties and composition.
Lithosphere
The rigid outer layer of the Earth, encompassing the crust and the upper mantle, which is involved in plate tectonics and continental movement.
Trophic Level
The position that an organism occupies in a food chain, which determines the flow of energy and nutrients from one organism to another.
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