Podcast
Questions and Answers
Which characteristic is unique to mammals compared to other animal classes?
Which characteristic is unique to mammals compared to other animal classes?
- Warm-bloodedness
- Hair or fur
- Milk production (correct)
- Giving birth to live young
All mammals give birth to live young.
All mammals give birth to live young.
False (B)
Name the three subclasses of mammals.
Name the three subclasses of mammals.
Monotremes, Marsupials, Placental mammals
__________ are mammals that lay eggs.
__________ are mammals that lay eggs.
Match the mammal subclass with its primary mode of reproduction:
Match the mammal subclass with its primary mode of reproduction:
What is a key characteristic of marsupial reproduction?
What is a key characteristic of marsupial reproduction?
Marsupial newborns are fully developed at the time of birth.
Marsupial newborns are fully developed at the time of birth.
What is the name given to a young marsupial?
What is the name given to a young marsupial?
After birth, a joey crawls into its mother's __________ to continue developing.
After birth, a joey crawls into its mother's __________ to continue developing.
Match the marsupial with its description
Match the marsupial with its description
Which of the following is a characteristic of placental mammals that distinguishes them from marsupials?
Which of the following is a characteristic of placental mammals that distinguishes them from marsupials?
Placental mammals are limited to terrestrial habitats.
Placental mammals are limited to terrestrial habitats.
Provide an example of a placental mammal.
Provide an example of a placental mammal.
The __________ allows for longer pregnancies in placental mammals.
The __________ allows for longer pregnancies in placental mammals.
Match the mammal subclass with its description
Match the mammal subclass with its description
What is the primary function of the mammary glands in mammals?
What is the primary function of the mammary glands in mammals?
All mammals have the same dental structure and diet.
All mammals have the same dental structure and diet.
Briefly explain the role of hair or fur in mammals.
Briefly explain the role of hair or fur in mammals.
Mammals are __________-blooded, meaning they can regulate their internal body temperature.
Mammals are __________-blooded, meaning they can regulate their internal body temperature.
Match the anatomical feature with its function in mammals:
Match the anatomical feature with its function in mammals:
Flashcards
What defines a mammal?
What defines a mammal?
Mammals are warm-blooded animals characterized by having hair or fur and producing milk.
What are monotremes?
What are monotremes?
Monotremes are mammals that lay eggs instead of giving birth to live young.
Examples of monotremes?
Examples of monotremes?
Platypus and echidnas are the only existing examples of monotremes.
What are marsupials?
What are marsupials?
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How do marsupials develop?
How do marsupials develop?
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What are placental mammals?
What are placental mammals?
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Which is the most diverse mammal group?
Which is the most diverse mammal group?
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Study Notes
- Mammals possess hair or fur, produce milk, and are warm-blooded.
Monotremes
- Monotremes are egg-laying mammals, differing from other mammals that give birth to live young.
- The monotreme group consists of one species of platypus and four species of echidnas.
Marsupials
- Marsupials are characterized by giving birth to underdeveloped young after a brief pregnancy.
- After birth, the tiny newborn crawls into the mother's pouch, attaches to a nipple, and continues its development.
- The young marsupial, known as a joey, spends months growing in the pouch before emerging.
- The joey will often return to the pouch when it feels threatened.
Placental Mammals
- Placental mammals represent the most diverse group within the mammal class.
- They give birth to more developed live young compared to marsupials, which allows for longer pregnancies.
- Placental mammals are found in nearly every habitat on Earth.
- Humans are an example of a placental mammal.
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