Where r the options .... s z z x x x x x x x x x x x. X
This statement would have to be "false" or the second option. If it has something to do with fitness it would mainly be in affect for anyone. So in this case if you want to talk about something that a evolution for fitness it would most likely be for anyone since how it could make anyone fit.
Hope this helps!
T cells attack antigens on foreign substances and B cells produce antibodies.
<em>You have to break it apart and do the parts you already know in order and then you may check your own work</em>
