Answer:
the central nervous system
Explanation:
The nervous system is made up of the central nervous system and the peripheral nervous system: The brain and the spinal cord are the central nervous system.
What grade are you in if you are in 5th or 6th i can help you
Answer:
Activated
Explanation:
In the presence of lactose, and in the absence of glucose, lactose will bind to a protein called a "repressor," deactivating it. Through this, RNA polymerase has a free way to synthesize the mRNA that will give enzymes for lactose degradation.
They have bilateral symmetry and a rounded shape.
