r eggs. Great white sharks are ovoviviparous; they give birth to 2-14 fully formed pups that are up to 5ft long. The eggs hatch within the female and are nourished by eating unfertilized eggs and smaller siblings in the womb. There is no placenta to nourish the babies-they must fend for themselves even before birth. They swim away from the mother immediately after birth, there is no maternal care given.Comparison All of the sharks body systems are completely different from that of the spider. The digestive system, for example, of the shark allows it to swallow food whole; or at least a large fraction of that, while that of the spider prevents it even eating its prey. All the spider is capable of is literally "sucking" out its preys life. However the black widow is a good mother. Once it lays its eggs, she protects them aggressively. While on the other hand the great white shark never cares for her young. Although both have different ways of catching prey, both are effective. The black widow builds traps and awaits a victim, while the shark relies on its keen sense of smell. Referring back to the first argument (the digestive system) the black is able to store food away for a time of need, while the shark, not concerned with food supply, takes the bare necessities. Although both these animals are very different they are also very alike. Both of these animals are best suited for their environment. Review again the above information about the black widow and the great white shark, and ponder. Think about the environment it lives in and each detail about the animal will make sense....
