This term is a measure of the ability of a system to resist change in the face of outside influences.

#Question id: 4601

#Section 2: Evolution

DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Instead, DDT is largely useless against many insects. Which of these would have prevented this evolution of DDT resistance in insect pests?

#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: 4603

#Section 2: Evolution

Of the following anatomical structures, which is homologous to the bones in the wing of a bird?

#Question id: 4604

#Section 2: Evolution

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, which develop from similar embryonic tissues. These structural similarities are an example of ________.

#Question id: 4605

#Section 2: Evolution

Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?

#Question id: 4606

#Section 2: Evolution

Which of the following evidence most strongly supports the common origin of all life on Earth? All organisms ________.