The study of Escherichia coli (E. coli) led researchers to new experimental designs for studying operons. The experimental design that the scientist should use it to (B) Test the response of E. coli to a variety of chemicals to determine the number of operons that are present.
The top layers are the youngest and the farther you go down, the older they get. I’ll put it in exact order in a minute.
Answer:
should be B = human population growth
1.) consumers
2.) omnivores
vague I think, :l