Humans begin their existence as a single undifferentiated cell and proceed to become a highly complex and organized system consisting of specialized cells (liver, skin, brain, blood, etc.). This change BEST exemplifies the principle.

Orthogenetic

Explanation:

The Orthogenetic principle of development was put forward by Heinz Werner, in the year 1975.It is a biological principle of development. This principle of development states that all the aspects of the functioning of a living organism develop progressively from a less differentiated state to a more differentiated state. Besides differentiation, there is also hierarchic integration and articulation of functioning such as perception, cognition, etc. This leads to the development of more complex forms from a simple form.Therefore, a single undifferentiated cell giving rise to the complex organized system is an example of the orthogenetic principle.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.