"Body composition assessment is a physical test that measures the proportion of the various components of a person's body. The human body is comprised of water, protein, fat, and minerals, but for most purposes, it is the level of fat compared to lean mass that is of interest. In general, most body composition analysis tests measure the ratio of fat to lean tissue. Body fat, or adipose tissue,
has chemical and physical properties that allow for a number of analytical methods, each with its own advantages and limitations."
information from chacha .com
Gabriel would then need to ask to see their ID's. If he suspects they are using false ID's then he would need to confiscate them and call the police. If the two minors have no ID then he needs to have them escorted off the property or tell them to leave.
Body planes, look at this website for more info
https://www.google.co.uk/url?q=https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/introduction-to-anatomy-and-physiology-1/mapping-the-body-33/body-planes-and-sections-289-1344/&sa=U&ved=0ahUKEwjQs8XR9YrUAhXHKcAKHapnD58QFggUMAI&usg=AFQjCNH0hXmL_w50JNtIeUTU7BDPw10XDg
Permanent maintenance of weight loss<span />