Who of the following first discovered that some blood leukocytes could engulf disease-causing bacteria?

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Élie Metchnikoff, a Russian zoologist, is credited with discovering phagocytosis in 1882. He observed that certain cells in the starfish larvae could engulf and digest foreign particles, including bacteria. This discovery revolutionized the study of immunology and opened up new avenues for understanding the body's defenses against infection.

Who of the Following First Discovered That Some Blood Leukocytes