All body cells, except the sperm and the ova

How does an angiosperm prevent self pollination

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture

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