The specialists studied two groups of larvae. Group L displayed all kinds of mutations while group D didn't. Which group of larvae had more changes in their DNA sequence?
Ans: Group L

Big continent used more air polluting substances, while Small continent was very protective towards the environment. Big continent got a hole in its ozone layer as a consequence of their actions. Which continent used more aerosol sprays?
Ans: Big

Mike is studying for his zoology class. Today, he is studying about reptiles and amphibians. He found it easy to understand their differences by categorizing them. For that, he classified reptiles as class A and amphibians as class B. Which class of animals would have more efficient respiratory system, class A or class B?
Ans: class A

Ben and Jack both loved microorganisms. Jack decided to study more about lactic fermentation, while Ben decided to study more about protozoa. Which person read less about bacteria?
Ans: Ben