Background: While the Grants were on the Galápagos, a drought occurred. As a result, fewer seeds were available for finches to eat. Birds with smaller beaks could crack open and eat only the smaller seeds. Birds with bigger beaks could crack and eat seeds of all sizes. As a result, many of the small-beaked birds died in the drought. Birds with bigger beaks survived and reproduced (see Figure below ). Within 2 years, the average beak size in the finch population increased. Evolution by natural selection had occurred.

Situation: During a particularly bad infestation of caterpillars Mark sprayed his orchards with pesticide. That year most of the caterpillars died. The next year the pesticide also seemed to be effective but as the years passed more and more caterpillars seemed to be surviving until Mark had no choice but to find a new and stronger pesticide.

Question: What were the caterpillars adapting to?

Situation: During a particularly bad infestation of caterpillars Mark sprayed his orchards with pesticide. That year most of the caterpillars died. The next year the pesticide also seemed to be effective but as the years passed more and more caterpillars seemed to be surviving until Mark had no choice but to find a new and stronger pesticide.

Question: The first year were most of the caterpillars susceptibal or immune to the pesticide? ?

Situation: During a particularly bad infestation of caterpillars Mark sprayed his orchards with pesticide. That year most of the caterpillars died. The next year the pesticide also seemed to be effective but as the years passed more and more caterpillars seemed to be surviving until Mark had no choice but to find a new and stronger pesticide.

Question: The second year were most of the caterpillars susceptibal or immune to the pesticide? ?

Situation: During a particularly bad infestation of caterpillars Mark sprayed his orchards with pesticide. That year most of the caterpillars died. The next year the pesticide also seemed to be effective but as the years passed more and more caterpillars seemed to be surviving until Mark had no choice but to find a new and stronger pesticide.

Question: After several years were most of the caterpillars susceptibal or immune to the pesticide? ?

Situation: During a particularly bad infestation of caterpillars Mark sprayed his orchards with pesticide. That year most of the caterpillars died. The next year the pesticide also seemed to be effective but as the years passed more and more caterpillars seemed to be surviving until Mark had no choice but to find a new and stronger pesticide.

Question: Were catipillars born after the first year more or less likely to be immune to the pesticide?

Situation: During a particularly bad infestation of caterpillars Mark sprayed his orchards with pesticide. That year most of the caterpillars died. The next year the pesticide also seemed to be effective but as the years passed more and more caterpillars seemed to be surviving until Mark had no choice but to find a new and stronger pesticide.

Question: Were catipillars born after the first year more or less likely to be susceptibal to the pesticide?

Situation: Mice in the area were born either grey or white. The fur color was completely random at one time. However as people moved into the area and feral cats became a problem the white mice were especially easy for the cats to spot at night.

Question: Which colored mouse is least likely to survive?

Situation: Mice in the area were born either grey or white. The fur color was completely random at one time. However as people moved into the area and feral cats became a problem the white mice were especially easy for the cats to spot at night.

Question: Which colored mouse is least likely to pass on it's genes?

Situation: Mice in the area were born either grey or white. The fur color was completely random at one time. However as people moved into the area and feral cats became a problem the white mice were especially easy for the cats to spot at night.

Question: Which colored mouse is most likely to reproduce?

Situation: Mice in the area were born either grey or white. The fur color was completely random at one time. However as people moved into the area and feral cats became a problem the white mice were especially easy for the cats to spot at night.

Question: Which colored mouse is most likely to pass on i's genes?

Situation: Mice in the area were born either grey or white. The fur color was completely random at one time. However as people moved into the area and feral cats became a problem the white mice were especially easy for the cats to spot at night.

Question: What environmental change occured?

Situation: Mice in the area were born either grey or white. The fur color was completely random at one time. However as people moved into the area and feral cats became a problem the white mice were especially easy for the cats to spot at night.

Question: where the grey and white mice the same or different species?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Is the pesticide weaker than in the past or less effective?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Are the insects changing or staying the same?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Did the initial pesticide kill all the insects or only some?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Were some or none of the insects recistant to the earlier pesticide ?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Are more insects resistant to now or in the past?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Were fewer insects resistant to the pesticide in the past or now?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Will more or less insects be resistant to the pesticide in the future??

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Did resistant or nonresistent insects pass on their genes?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Are the resistant or nonresistent incects more common now?

Situation: Bob's family had been farming this land for 3 generations but he was finding that he had to use much more pesticide to keep destructive insects from destroying his crops.

Question: Are the resistant or nonresistant incects less common now?