What is in the hydrosphere? a dolphins b rivers c soil d mars

Which beat describes the brain stem

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates

How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans