Why do we incubate our unknowns (all were members of family enterobacteriaceae) at body temperature? (a) that is their optimal temperature range. (b) it makes them produce a pigment we can use to identify them.(c) to make them grow faster because they are thermophilic. (d) because they are facultative

Option A

Explanation:

Enterobacteriaceae can be defined as the group of gram  negative bacteria. These are non sporing rods that grow at body temperature of human beings 37-43 degrees C.

They are facultative anaerobes and are capable of fermenting glucose into various kinds of end products.

They incubate on the temperature that is found inside human body and they inside the intestine of human body.

the answer is d.) homologous; have mammary glands