#Question id: 4594
#Section 2: Evolution
Which one of the following observations did Darwin first make during his discovery of evolution?
#Question id: 4656
#Section 2: Evolution
Logically, which of these should cast the most doubt on the relationships depicted by an evolutionary tree?
#Question id: 10619
#Section 2: Evolution
Which of the following is incorrect?
#Question id: 4602
#Section 2: Evolution
If the bacterium Staphylococcus aureus experiences a cost for maintaining one or more antibiotic-resistance genes, what would happen in environments that lack antibiotics?
#Question id: 11057
#Section 2: Evolution
Bombardier beetles release an explosive mixture of quinones and hydrogen peroxide from glands at the end of their abdomen when disturbed by grasshopper mice and other predators. This is an example of what kind of defense against predation?