The four blood types result from various combinations of the three different abo alleles.

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

Environmental differences within ecosystems are generally caused by

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?