[问答题]
1.Compare and contrast foshvoq14 evqn1 y8c;zz/i/x :vrests a5qr, f k,5or5jnwi t+6e(e8vocig,ld nd marine phytoplankton in their role in the carbon cycle.
,enrvoifeqor5w(8+i5lg t,dc 6 k5, j 2.Describe how aquatic autotrophs absorb carbon dioxide from the surroundings.
