Pulmonary vein. It enters your pulmonary vein and then enters your left atrium.
I hope that helped :)
<span>they both have two alleles
</span>they both express the dominant allele (aka the phenotype or physical traits of the allele). They are different in genotype though, which is their genetic make up because homozygous would be two dominant alleles and heterozygous is a combination of dominant and recessive allele. Homozygous recessive and heterozygous are completely different <span>though in genotype and phenotype.</span>
Cellular respiration input: pyruvate (partially oxidized glucose), ADP, and inorganic phosphorus. Output: ATP, carbon dioxide, and water. Photosynthesis input: water, carbon dioxide, and photon energy. Output: Oxygen and glucose.