Define bioaccumulation and biomagnification
What will be an ideal response?
Biomagnification is the movement of a chemical through the food chain; as an organism eats on the trophic level below it, it takes in the chemicals that are in those organisms, magnifying the concentration of the chemical. Bioaccumulation is biomagnification plus bio concentration (the movement of a chemical against a concentration gradient).
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A transgression occurs when the sea advances landward
a. True b. False
The Ganges-Brahmaputra delta is an example of a wave-dominated delta
Indicate whether the statement is true or false
The aphotic zone is the near-surface zone of the ocean where light is strong enough for photosynthesis to occur
Indicate whether the statement is true or false
The Earth can be described as a(n) ________ because of its magnetic field
A) protoplanet B) positive attractor C) oblate spheroid D) plate holder E) geodynamo