Answer: No, all the bugs did not die.
Explanation: Some bugs will survive and adapt to the sprayed stuff.
C. The problem of endangered species
Answer:
Other species that rely on those fish would die off. The extinction of one species can lead to the extinction of another and so on.
Amoebas are single-celled organisms, which means that they are composed of just one cell. Each amoeba is a cell capable of performing all living functions by itself. They can reproduce asexually. They are protozoans with no fixed shape. Most have no hard parts and look like blobs of jelly.