Please help me on this its due tonight ​

It is important to tell which characteristic came from which parent because it can lead to discovering that one side of the family could potentially have a heritable disease that the parent could pass down to future generations.

Explanation:

It is important to tell which characteristic came from which parent because it can help us probably notice what makes us unique, or one of a kind. Why family members look alike. Why some diseases like diabetes or cancer run in families. We know that the characteristic play an important role in shaping how we look and act and even whether we get sick. Some traits are controlled by genes passed from parent to child, others are acquired through learning but most are influenced by a combination of genes and environmental factors.

Explanation:

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.