Answer: circulatory is when ur blood circulates and respiratory is the system we use to breath if I remember correctly
Explanation:
Perception of pitch and sound intensity is the cocklear
B. Crystalline structure
C. Types of chemical elements
And
D. Amounts of chemical elements
Answer: <span>Almost every type of bacteria has become stronger and less responsive to antibiotic treatment when it is really needed.
Hope this helps! :)</span>
