It is a test please help Which organ is not connected to its system?

a) Spinal cord – Nervous system

b) Large intestine – Digestive System

c) Testes – Reproductive system

d) Kidney – Circulatory system

the answer would be 3

the answer is golgi apparatus

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it