What advantages do embryonic stem cells have over over adult stem cells in medical research

Twind is considered to be an abiotic factor because it.?

The punnett square predicts the ratio of genotypes in the offspring, based on the genotypes of the parents. in this cross, tallness (h) is dominant to shortness (h). based on the punnett square, what is the phenotype of the offspring? hh hh tall short

Why do you suppose the structural polysaccharide cellulose does not contain branches?