What is the role of the mouse?
a) primary producer
b)secondary producer
c)primary consumer
d)secondary consumer

D) secondary consumer 
it cant be a producer because it is not making it's own food/energy, it is obtaining it from something else.

The correct answer is b

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.