cow eats 200 pounds of grain to get enough energy to build 20 pounds of muscle tissue, why.

Question

a. first law fo thermodynamics

b. second law of thermodynamics

c. the fact that some energy is destroyed in every energy conversion

d. the fact that energy transformations are typically 100%

e. the fact that most of what the cow eats is indigestible since the cow is unable to break down cellulose in its digestive tract

***I dont think its c or d....but im not sure

Answer 1

The answer is e. The cow does not have the proper enzymes necessary to digest and absorb much of the energy yeilding macronutrients in the grain.