AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following creates a calcium carbonate structure?
A
plants
B
cows
C
corals
D
decomposers
Explanation: 

Detailed explanation-1: -Massive reef structures are formed when each individual stony coral organism-or polyp-secretes a skeleton of calcium carbonate.

Detailed explanation-2: -They pump hydrogen ions (H+) out of this space to produce more carbonate ions (CO32-) ions that bond with (Ca2+) ions to make calcium carbonate (CaCO3) for their skeletons.

Detailed explanation-3: -Animals of the coral reef need calcium carbonate to build their skeletons.

Detailed explanation-4: -Corals are tiny marine invertebrates that typically live in colonies, secreting calcium carbonate to form a hard skeleton.

Detailed explanation-5: -Hard corals, also known as scleractinian and stony coral, produce a rigid skeleton made of calcium carbonate (CaCO3) in crystal form called aragonite. Hard corals are the primary reef-building corals.

There is 1 question to complete.