A mother with HIV / AIDS becomes pregnant. If she gives birth normally without a caesarean section, she will contract the disease

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.

the answer is d p: cell, q: organ, r: organ system, s: tissue