Ocean-dwelling (marine) iguanas and land iguanas inhabit the galapagos islands. some
scientists believe that both types of iguanas 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 been introduced to the islands by humans. rats feed on
iguana eggs, cats eat baby iguanas, and goats eat cacti.

would the introduction of goats have a greater effect on the population of the marine iguanas or the land
iguanas? support your answer.
population of iguana: