I would say body language because animals can detect threats
Its called an <span>pesco pollo vegetarian</span>
Explanation: because carry out all the functions in the human body necessary for living. Proteins make up hormones that are required for living. Insulin - responsible for stabilising blood sugar. Haemoglobin - responsible for carrying oxygen around the body. Melatonin - responsible for helping us get to sleep. Adrenalin - responsible for the flight-fight-freeze response. There are many more but here are just a few.
the characteristics applies to all three domains and viruses by the genetic material.
