Problem: 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 better separation of oxygenated and deoxygenated bloodstreams, class A or class B?

A: class A

Problem: Two botanists studied different types of plants. Barb studied Anemophilous plants, while her friend Faye learned about entomophilous plants. Which botanist learned less about non-sticky pollen?

A: Faye

Problem: Microbiologist John is studying the anaerobic organism. He collected two samples of this organism, sample A and sample B. Sample A is an anaerobic organism, and sample B is specifically identified as the Clostridium perfringens obligate anaerobe. To compare these samples to other organisms he collected another microbe that is not an anaerobic organism. He labeled it as sample C. Would sample C die or thrive in presence of oxygen?

A: thrive

Problem: Johnny has two old drums that used to carry nuclear in his garage. He is curious to know about any radiation that the drums are giving off so he purchases a Geiger counter and returns home. Upon returning home, he puts each drum in the opposite corner of his garage and then runs the Geiger counter over the barrel. Drum A causes Johnny's Geiger counter to make a slow but steady noise. When Johnny walks over to Drum B, his Geiger counter starts making rapid sounds. Johnny thinks maybe he should not have invested in these barrels. Which drum is giving off more radiation?

A:
Drum B