Answer:
this goes from question on top as One
Explanation:
Top is "introduction of an antibiotic"
bottom is " a population resistant to antibiotic"
the second one is "a toxic agent"
the third is "bacteria"
fourth is "most of bacteria died"
I think the answer your looking for is smooth muscles and cardiac muscles. They only muscles that can be voluntarily controlled is skeletal muscles. Let me know if this is what you're looking for:)
Perception of pitch and sound intensity is the cocklear
There are 5 levels of cell organization recognized by biologists.