Which of the two types of immunity requires white blood cells?

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except

Which of these is the best source of stem cells and minimizes the risk with cell transplantation

Jaden’s father is immune to poison ivy. jaden is also immune to poison ivy. jaden’s immunity to poison ivy is which kind of trait?