Please do this for me i cant even think anymore

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct