What is used to find true north on a compass

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.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

you know they are heterozygous for a trait because they have it as jj or jj.