How would acidification of seawater affect marine organisms?
a. acidification would decrease dissolved carbonate concentrations and hinder growth of corals and shell-building animals.
b. acidification would increase dissolved bicarbonate concentrations, and cause increased calcification of corals and shellfish.
c. acidification would decrease dissolved carbonate concentrations and promote faster growth of corals and shell-building animals.
c. acidification would increase dissolved carbonate concentrations and promote faster growth of corals and shell-building animals.
d. acidification would increase dissolved carbonate concentrations and hinder growth of corals and shell-building animals.

a. Acidification would decrease dissolved carbonate concentrations and hinder growth of corals and shell-building animals.

Explanation:

Atmospheric carbon dioxide is the main cause for ocean acidification. During ocean acidification the amount of free H⁺ will increase. Then this free ions react with the available carbonate ions. It is more difficult for organisms to obtain the necessary carbonate hence its growth is affected.  

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation: