Answer:
carbohydrates
Explanation:
Sucrose is a sugar, and sugars are a type of carbohydrate.
Appalachian Mountains are a part of the Lithosphere
That Trait (Hitchhiker's thumb) may be recessive in both the parents but when they transmitted their genes to their offspring, it became dominant in that 'cause of two similar genes (Homozygous Condition).
Hope this helps!
