1. what is the difference between traits and characteristics? which is within an individual’s control

Trait is something at genetic level which itself is not physically recognizable but when it expresses itself in the form of characteristics it  becomes physically recognizable

Explanation:

Biologically both traits and characteristics are two different things. Trait is something at genetic level which itself is not physically recognizable but when it expresses itself in the form of characteristics it  becomes physically recognizable

For example -

Allele for any characteristics carries the trait for that characteristics.

Allele "P" carries the trait for pink color of flower. Now once this allele gets paired with other allele it expresses the characteristic i.e pink colored flower

Nothing is with in an individuals control.

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

i'd say that the moon rock is about 2.2 billion years old.