What is the function of the organ and the tissues which make up this organ?​

it's heart.

Explanation:

heart is made up of cardiac tissues. this organ along with tissues pump blood to the entire body. the tissues that make up this organ is specialized in involuntary contraction and relaxation with applies enough pressure to allow steady blood flow in and out of the heart.

hope it helps. :)

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.