Which of the following is a specialized cell?
a. stem cell
b. nerve cell
c. meristem
d. side stem cell

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

answer; ///(b) it is composed of four protein chains and four heme groups;

the scientific method.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.