jltui uuring exercise.
these physiological effects probably gave us an
advantage in surviving some fight-or-flight
situations in our past.
✓ check your understanding
1. two approaches to removing wastes and
toxins from fluids were described in this
lesson. why do we think the body uses
the second approach rather than the first?

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.