Which of the following is not a type of white blood cell involved in the internal nonspecific immune response? phagocyte interferon monocyte natural killer cell neutrophil

The answer is interferon.

Interferon is not cell, but is a group of glycoproteins known for their role in inhibiting viral infections by preventing virus multiplication in cells.

 Interferon also helps in the fight against infection by stimulating the entire immune system to fight the infection.

There are different types of interferon. They include interferon-alpha which is made by leucocytes and interferon-gamma which is made by fibroblasts after viral infection.

The first interferon was discovered by Alick Isaacs and Jean Lindenmann in 1957.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

the answer is d. chordata