Which explanation best describes the organization of the human body?

the body is made of cells. the cells are organized to build organs. a group of organs make up a tissue. a group of tissues make up a system.

a group of cells work together to form a tissue. a group of tissues work together to form an organ. a group of organs work together to make up a system.

tissues are the building block of all living things. tissues work together to make up systems. systems work together to make up organs. the organs work together to build a human.

there are a number of systems in the body. the systems are made of tissues, which work together to make cells. the cells make up the organs. the organs make up the tissues.

The answer is -- A group of cells work together to form a tissue. A group of tissues work together to form an organ. A group of organs work together to make up a system.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .