What is the role in the rock cycle of calcium carbonate shells in ocean animals and plant growth on land

The ocean plays an important role in the global carbon cycle. ... An individual atom might pass through plants, animals and the atmosphere in a matter of days, yet stay trapped in rocks for millions of years. ... Many organisms use carbon to make calcium carbonate, a building material of shells and skeletons.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully