B is answer because ewe have glands that produce hormones in our body.
Living by your personal values sounds easy—at least in theory. Your values, after all, are simply the things that are important to you in life, so it should be natural to live by them.
Organ Systems. When a group of organs work together to carry out a body function this is the what it is called.
Integumentary system. This is the external covering of our body, our skin.
Skeletal System.
Muscular System.
Nervous System.
Endocrine System.
Cardiovascular System.
Lymphatic System.
Leave no trace would be the answer
