Turtles, lizards, snakes, and crocodiles are which of the following? select one of the options below as your
a. amphibians
b. reptiles
c. fish
d. mammals

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion