Multiple choice

Which of the following options is a characteristic feature of mammals?

  1. Warm blooded

  2. Respiration through lungs

  3. Presence of mammary glands

  4. Four chambered heart
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Presence of mammary glands is a characteristic feature of mammals. Mammary glands are the organs that, in the female mammal, produce milk for the sustenance of the young.

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