That's easy, cellular respiration
A baby animal knows what to do after birth just from natural instinct. Human babies do not get taught how to breath or cry, they know to do so because they would die otherwise.
Food that has been subjected to the salivia and the many digestive juices of the GI tract is called Bolus.
Scientist study index fossils so they will get an understanding of what life was like back then.
Sensation (A) is the term for the process of sensory organs detecting external stimuli and transmitting these stimuli to the brain.
