A population of insects consists of green and brown individuals. Birds prefer to eat the green insects, and over time, the brown insects reproduce more frequently. What is the mechanism by which the brown insects are more likely to survive and reproduce?

A species of fish in a deep-sea environment has large, sensitive eyes that help detect light from underwater volcanic vents. However, the volcanic activity decreases, and the water temperature rises. How might this affect the fish’s ability to survive?

A group of wolves lives in packs throughout a national park. If one pack is affected by a disease, how could this influence the rest of the wolves in the park?

A plant species produces either red or green leaves. A study finds that red leaves are more efficient at photosynthesis in the local environment. If a plant with green leaves produces offspring, what will likely happen to the offspring's leaf color?

A population of rabbits consists of individuals with white and brown fur. After a harsh winter, the meadow is covered in snow, making it harder for predators to see the white rabbits. What factor is most likely influencing the survival of each group?

In the African savannah, cheetahs are faster than lions, allowing them to catch smaller prey, while lions are stronger and better suited to hunting larger animals. Which of the following would determine which animal is more likely to survive and reproduce in this environment?

In a grassland ecosystem, drought reduces the availability of water. Plants with deep roots are better able to survive and reproduce during this time. What term best describes how drought influences the plant population?

A class is conducting a simulation where organisms with large and small wings are introduced to an environment with varying wind conditions. The organisms with larger wings survive and reproduce more often, as they are better able to navigate the environment. What term describes the method used to understand how environmental factors impact survival?