Marine and land iguanas are two different species that inhabit the Galapagos Islands. Some scientists believe that both species diverged from a common ancestor. Marine iguanas eat algae. Land iguanas feed on cacti. Algae are more abundant in the ocean than cacti are on the islands. Both species lay their eggs in the sand.Rats, cats, and
goats have recently been introduced to the islands. Rats often feed on iguana eggs, cats eat baby iguanas, and goats eat cacti. Explain how the two species of iguanas could have developed from a common ancestor. In your response, be sure toname the process that explains how marine and land iguanas developed from a common ancestordescribe the steps involved in this processexplain how the introduction of rats, cats, and goats might affect both iguana species
The iguanas could have had a common ansector. Through the process of natural selection the species split. An inguana could have had a natural adaptation that allowed it to digest algae better. It could hae lived closer to the ocean. Then the iguana reproduced and created a new species. The iguanas evolved into what they are today. Survival of the fittest allows the iguanas to reproduce more offspring so the trait that allowed the iguana to digest algae got passed down from generation to generationIf rats eat all of the iguana eggs then the iguanas wont have any offspring. The more eggs the rats eat the less chance of survival the species of iguanas have. The same is with rats. If rats eat baby iguana then the iguanas will ahve a less chance of surviving and may become extinct. On the other hand, through the process of natural selection and survival of the fittest, the fastes and most elusive baby iguansas will survive and evolve. Since the goats eat cactci only the speies of iguana hat eat cacti will be affected. There will be less and less foci for the iguanas to eat. The iguanas that can survive with the least amount of food have a better chance of reproducing and creating more offspring.