Question

read the paragraph. then, add the best topic sentence. grown iguanas need a cage that is at least twice their length and six feet high. the height is important, since iguanas naturally like to climb trees and be up high. the cage has to stay very warm, like the sunny places where iguanas live in the wild. the water dish should be large enough for iguanas to soak in, and not just drink out of. iguanas should be fed plenty of raw vegetables, including squash and green beans. fresh vegetables make great iguana food. iguanas and other reptiles need special care. iguanas live in a range of tropical places all over the world. pet iguanas need certain things to stay healthy and be comfortable.

Explanation:

The paragraph details the requirements for housing, feeding, and caring for pet iguanas to keep them healthy and comfortable, such as cage - size, temperature, water - dish size, and diet.

Answer:

Pet iguanas need certain things to stay healthy and be comfortable.