Use Darwin's theory of natural selection to explain the development of immunity to cancer in these wolves.

Activity 6 6.1 Scientists determine if two populations still belong to the same species by checking if they can interbreed and produce fertile offspring. 6.2 Step 1: Variation existed within the lizard population on Island B, including differences in jaw size. Step 2: The new environment on Island B presented a selection pressure with tough fibrous leaves and fewer insects, favoring lizards that could consume these plants. Step 3: Lizards with larger jaws were better adapted to eat the available food, increasing their chances of survival. Step 4: These better-adapted lizards were more likely to reproduce and pass on their genes for larger jaws to their offspring. Step 5: Over generations, the frequency of the large jaw trait increased in the population, leading to the evolution of lizards with larger jaws through natural selection. Activity 7 7. Step 1: Within the wolf population, there was natural variation in genetic resistance to cancer. Step 2: The high radiation in Chernobyl acted as a strong selection pressure, causing cancer in many wolves. Step 3: Wolves with genetic mutations providing immunity or resistance to cancer were more likely to survive the radiation exposure. Step 4: These surviving, immune wolves were able to reproduce and pass on their advantageous genes to their offspring. Step 5: Over time, the frequency of these genes for cancer immunity increased in the population, leading to the development of immunity to cancer through natural selection. Activity 9 9.1 Step 1: The common ancestor of pottos and lemurs existed when Africa and Madagascar were connected. Step 2: Continental drift caused Madagascar to separate from the African mainland. Step 3: This geographical separation isolated populations of the common ancestor, leading to independent evolutionary paths on the two landmasses. 9.2 Step 1: Geographical isolation occurred when Madagascar drifted away from Africa, separating populations of the common ancestor. Step 2: This isolation prevented gene flow between the populations on the mainland and Madagascar. Step 3: Different environmental conditions and selection pressures on each landmass favored different traits. Step 4: Over long periods, natural selection acted differently on each population, leading to the accumulation of genetic differences. Step 5: Eventually, these differences resulted in reproductive isolation, meaning the populations could no longer interbreed, thus forming two distinct species: pottos in Africa and lemurs in Madagascar. Activity 10 10.1 • Temporal isolation: Datura flowers open only in the evening, attracting nocturnal hawk moths and preventing pollination by diurnal pollinators. • Pollinator specificity/Behavioral isolation: The addictive nectar ensures hawk moths stay longer and only visit Datura flowers, preventing pollen transfer to other plant species. 10.2 • Habitat isolation: Different plant species grow in different habitats, reducing the chance of interbreeding. • Mechanical isolation: The physical structure of the flowers may prevent certain pollinators from accessing the reproductive parts, or pollen may not fit the stigma of another species. Send me the next one 📸