This causes pieces of the continental crust to crack and pull apart. Some slabs of the crust sink, causing a rift zone. If the lithosphere continues to spread, a narrow sea can form. Continued spreading produces an ocean basin and ridge system.
Confidence votes 3. a tiger is a mammal because they give milk to their young and produce milk. They breath the air form of oxygen and produce milk. They fulfil the criterion that need to be fulfilled by a mammal. Thse being that they are warm blooded, animals that give birth to live young and sucle them.
Tiger. My first organism is called a tiger. Tigers are large mammals and are the largest of the cat species. They primarily live in tropical rainforests, evergreen forests, mangrove swamps, grasslands, savannas, and temperature forests.y second organism is called the golden jackal. Golden Jackals are mammals and are part of the dog species. They are primarily live in the evergreen forests of Burma and Thailand and in Africa they are found in.