I need help with A science conversion using picket fence method, converting 89 kilograms to oz using pounds and ouces and kilograms

Q: a pair of homologous chromosomesa) always has the same genes and the same allows b)always has the same genes c)always has the same alleles d)never has the same genes

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

What advantages does a pedigree have over a written passage?