Life has the following major characteristics that define it;
- It responds to stimuli
- It reproduces
- It exhibits growth and development
- It has some order – has levels of organization
- They regulate their internal environment through homeostasis
These characteristics distinguish the living thing from non-living things.
Integumentary system: it is the most extensive system of the human body since it covers it completely. Its main functions are to separate, protect, and inform our body of the environment that surrounds us. Among its many functions are: It is the first immunological barrier that protects us from the external environment; It intervenes in avoiding drying out.Excresion: Through sweating waste is excreted and body temperature is reduced.Diagnostic Role: skin can present the symptoms of many diseases, which makes it possible to diagnose them.
The answer is「Atomic Numbers」
Answer:
Proteins is a macromolecule that helps to send signals
