6 to 8 hrs for digestion. it stays in the stomach for 2 hours and then in the intestine for another 2 hours. the undigested food goes to the large intestine and the digested food goes to whole body through blood. Carbhydrates and proteins about 1 1/2 -2 hrs. Fats 2 hrs.
And based on that a foetus does not posses self-awareness. Human babies have been found to become self aware between the ages of 18-24 months. The rouge test is a self-recognition test that identifies a human child's ability to recognize a reflection in a mirror as his or her own.
Self-awareness is having a clear and realistic perception of who you are. do what you to, how you do it, and the impact this has on others. intelligence and success. and what drives you when goal-setting. that are the best fit for your skill-set, preferences and tendencies. reactions easier.