Aperson's flexibility does not depend on which of the following?

a.
age
b.
height
c.
gender
d.
genetics

What body systems are involded in sleep homeostasis

Frankie is having difficulty developing a friendship with histeammate curtis. whenever frankie invites curtis to hangout with him at the park, curtis always says that he's busy.what is most likely preventing a healthy relationship fromforming? a)the boys are not being generous with their time andeffort.b)the boys are not communicating.c)both boys are too busy.d)the boys are on different teams.

How could you find out if that advice is based in scientific evidence?