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What is a defining feature of mammals that is not present in most other
OA.
OB.
C
D
Mammals maintain a constant body temperature.
Mammals can produce milk for their offspring.
Mammals have a nervous system with a spinal cord.
Mammals reproduce through internal fertilization.
O

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Answer:

Mammals can produce milk for their offspring.

Explanation:

Mammary glands are evolved from the modification of sweat glands. Mammary glands produce milk for their offspring. presence of hair on the body is also a defining feature of mammals. These defining features are not present in most of the vertebrates.

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