Answer:
If I am not wrong it should be B and D not entirely sure
I am not sure but I think the answer is B the Andes glaciers will disappear
Because some trait's phenotypes don't indicate their genotypes so in order to predict the phenotype of the offspring you have to know the genotypes of the parents
Cell
Tissue
Organ
Organ System
Organism
2 or more different atoms are combined in definite proportions in any compound.