Which of the following statements is FALSE? A.
Veins use a muscular pump to move blood.
B.
Veins are very elastic and muscular.
C.
Veins have one way valves in the tunica intima layer.
D.
Veins use a respiratory pump to move blood.

Karen is waiting by the lockers before school for her friend richard. they had agreed to look over the history review sheet together to be ready for the test later that day. richard shows up late with uncombed hair and wrinkled clothes. karen: "you're five minutes late and you look like a wreck! " richard: (slams his locker) "you know, i don't have time for this." karen: "fine! figure out the test on your own! "

Which service is provided by the national sexual assault hotline? a-legal assistance b-free medical care c-childcare services d-educational grants

How does thymosin affect f-actin dynamics?