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.
Ecological Niche. The Bengal Tiger, like most animals, is a heterotroph which means that they need to consume other organisms to obtain energy. These creatures are also endothermic which means they are warm blooded.By perfroming live birth and being covered head to tail in hair, Bengal Tigers are also classified as mammals.nlike other big animals Bengal Tigers do not hibernate. Since it is hot almost all year in India, they have no need to hibernate to avoid the cold winters. Bengal Tigers have a total gestation period of around 3.5 months (about 16 weeks) and tend to reproduce in the spring time.