Which of the following is NOT a characteristic of ALL mammals?
All mammals have hair.No. All mammals DO have hair. Even whales and dolphins have some hair on their skin.
All mammals give birth to live young.Yes! While most species of mammals give birth to live young, a few (platypus, echidna) lay eggs.
All mammals have mammary glands.No. All mammals DO have mammary glands. In females, these glands can produce milk to feed their young.
All mammals have three bones in their inner ear.No. All mammals DO have three bones in their inner ear. These bones are called the malleus, the incus, and the stapes. They transfer vibration from the ear drum to the inner ear.
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SC.3.L.15.1 Classify animals into major groups (mammals, birds, reptiles, amphibians, fish, arthropods, vertebrates and invertebrates, those having live births and those which lay eggs) according to their physical characteristics and behaviors.
SC.6.L.15.1 Analyze and describe how and why organisms are classified according to shared characteristics with emphasis on the Linnaean system combined with the concept of Domains.
UT.4.V.3.b Use a simple classification system to classify unfamiliar Utah plants or animals (e.g., fish/amphibians/reptile/bird/mammal, invertebrate/vertebrate, tree/shrub/grass, deciduous/conifers).