Which of the following is true about dna? a. can be many different shapes
b. contains uracil as a base
c. contains cytosine as a base
d. has one hydroxyl group more than rna

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.