Compare the functions of memory b cells and effector b cells.​

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite