Final answer:
The question incorrectly mixes Greek mythology and zoology. In Greek mythology, the Sphinx's mother, who was half serpent, was Echidna, which is not one of the given options. In zoology, the mammal that lays eggs is a monotreme, such as the platypus or the echidna.
Step-by-step explanation:
The correct answer to the question In Greek Myth, she was half serpent and Sphinx mother. In zoology, it's a mammal that lays eggs is none of the provided options (A) Harpy, (B) Chimera, (C) Minotaur, (D) Sphinx. The Greek mythological figure that was half serpent and considered the mother of the Sphinx was Echidna, who is not listed in the given options. However, when we refer to a mammal that lays eggs in zoology, we are talking about a monotreme, which includes species such as the platypus and the echidna.
The confusion may arise from the fact that there are two different subjects being queried in the same question: Greek mythology and zoology. In Greek mythology, Echidna is a creature that is half woman and half snake, known to be the mother of several monsters, including the Sphinx. Sphinxes in Greek mythology are beings with the head of a human, the body of a lion, and the wings of a bird, notably encountered by Oedipus in the tale of 'Oedipus and the Sphinx'. Notably, the mythological Echidna is unrelated to the zoological echidna, which is a spiny anteater found in Australia and New Guinea.