Contamination of food items by other living organisms is known as:
a physical contamination
b biological contamination
c chemical contamination
d all of the above

Contamination of food items by other living organisms is known as BIOLOGICAL CONTAMINATION.
Biological contamination is said to occur when pathogenic organisms are introduced into food. Biological pathogens that can contaminate food include: bacteria, viruses and parasites. Biological contaminations can be introduced into food from various sources such as from environment, inadequate sanitation practices and cross contamination during handling, transportation, processing and storage.

B Biological contamination Explanation:

A common description of a risk is relevant to food safety is conditions or contaminants that can produce sickness or distress. Biological hazards introduce microorganisms so as bacteria, germs, fungi, parasites, and epiphytes. Unusual of these are pathogens or may create toxins.

1. protection 2. homeostasis 3. storage4.blood formation5.bone marrow 6.movement

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.