Having a dimpled cheek is a dominant trait (d) and having a non-dimpled cheek is a recessive trait (d). if someone is homozygous dominant, then what genotype does the person carry?

The genes of an organism can be either a homozygous or a heterozygous one. When someone is a homozygous dominant, it means that it has two copies of the same dominant allele. Homozygous means that the organism has exact copies of the same gene allele. 

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.