How do we know that two species are related?

Though, scientists can look for similarities in the DNA and amino acid sequence to determine how closely related the two species are. The characteristics of an organism are determined by its genes, which are nothing but specific sequences of DNA molecules. Though, similar species will have similar DNA.

Explanation:

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.

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.