What do animals such as clams and oysters extract from the water to build their shells?
2 answers:
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Answer:
a.) freshwater plants may be rooted here--- Shore
b.) littoral zone--- it is the region of a lake or pond that is nearest to the shore
c.) limnetic zone--- A region of open water in lakes and ponds.
d.) alternately dry and submerged--- Intertidal Zone
e.) extends to edge of the continental shelf--- Neretic Zone
f.) generally low nutrient levels
g.) light penetrates here--- Photic Zone
h.) no photosynthesis occurs here--- Aphotic Zone
i.) benthic zone--- this is purely known as the bottom of the lakes or oceans
