Does anybody knows the field in science for the levels of organization

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?