Explanation:
nervous tissue is small unit of nervous system
Answer:
Nervous tissue- is made up of nerve cells called neurons. It also has neuroglia which supports and nourishes neurons.
Nervous system- composed pf neurons which work together in the body.
C
Explanation: all the others are considered very important in determining a substance so they would also be important for the level of environmental risk
180 hope this helps tell me if its wrong
Answer:True
