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Mammals: Origins, Diversification, and Evolutionary Trends

Description: This quiz covers the origins, diversification, and evolutionary trends of mammals, providing insights into their unique characteristics and the remarkable diversity of this group of animals.
Number of Questions: 15
Created by:
Tags: mammals evolution paleontology biodiversity
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Which of the following is NOT a characteristic of mammals?

  1. Warm-bloodedness

  2. Fur or hair

  3. Laying eggs

  4. Milk production

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Correct Option: C
Explanation:

Mammals are unique among vertebrates in that they give birth to live young and produce milk to nourish them.

What is the earliest known mammal?

  1. Morganucodon

  2. Juramaia

  3. Sinodelphys

  4. Eomaia

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Correct Option: A
Explanation:

Morganucodon, a small shrew-like creature that lived during the Late Triassic period, is considered to be the earliest known mammal.

Which of the following is NOT a major group of mammals?

  1. Monotremes

  2. Marsupials

  3. Placentals

  4. Prototherians

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Correct Option: D
Explanation:

Prototherians are not a recognized group of mammals. The three main groups of mammals are monotremes, marsupials, and placentals.

Which of the following is a characteristic of monotremes?

  1. Laying eggs

  2. Having a pouch

  3. Giving birth to live young

  4. Producing milk

Show answer
Correct Option: A
Explanation:

Monotremes, such as the platypus and echidna, are unique among mammals in that they lay eggs.

Which of the following is a characteristic of marsupials?

  1. Having a pouch

  2. Giving birth to live young

  3. Producing milk

  4. All of the above

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Correct Option: D
Explanation:

Marsupials, such as kangaroos and koalas, are characterized by having a pouch in which they carry their developing young, giving birth to live young, and producing milk.

Which of the following is a characteristic of placentals?

  1. Giving birth to live young

  2. Producing milk

  3. Having a placenta

  4. All of the above

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Correct Option: D
Explanation:

Placentals, the largest group of mammals, are characterized by giving birth to live young, producing milk, and having a placenta, which provides nourishment to the developing fetus.

What is the largest order of mammals?

  1. Rodentia

  2. Chiroptera

  3. Carnivora

  4. Artiodactyla

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Correct Option: A
Explanation:

Rodentia, the order of rodents, is the largest order of mammals, with over 2,000 species, including rats, mice, squirrels, and beavers.

Which of the following is NOT a member of the order Carnivora?

  1. Lions

  2. Tigers

  3. Bears

  4. Elephants

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Correct Option: D
Explanation:

Elephants are not members of the order Carnivora. They belong to the order Proboscidea.

Which of the following is NOT a member of the order Artiodactyla?

  1. Cows

  2. Pigs

  3. Horses

  4. Rhinoceroses

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Correct Option: D
Explanation:

Rhinoceroses are not members of the order Artiodactyla. They belong to the order Perissodactyla.

Which of the following is NOT a member of the order Cetacea?

  1. Whales

  2. Dolphins

  3. Porpoises

  4. Seals

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Correct Option: D
Explanation:

Seals are not members of the order Cetacea. They belong to the order Carnivora.

Which of the following is NOT a member of the order Primates?

  1. Humans

  2. Apes

  3. Monkeys

  4. Lemurs

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Correct Option: D
Explanation:

Lemurs are not members of the order Primates. They belong to the order Primates.

Which of the following is NOT a member of the order Chiroptera?

  1. Bats

  2. Flying squirrels

  3. Sugar gliders

  4. Colugos

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Correct Option: D
Explanation:

Colugos are not members of the order Chiroptera. They belong to the order Dermoptera.

Which of the following is NOT a member of the order Pholidota?

  1. Pangolins

  2. Armadillos

  3. Aardvarks

  4. Anteaters

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Correct Option: D
Explanation:

Anteaters are not members of the order Pholidota. They belong to the order Pilosa.

Which of the following is NOT a member of the order Sirenia?

  1. Manatees

  2. Dugongs

  3. Sea cows

  4. Hippopotamuses

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Correct Option: D
Explanation:

Hippopotamuses are not members of the order Sirenia. They belong to the order Artiodactyla.

Which of the following is NOT a member of the order Proboscidea?

  1. Elephants

  2. Mammoths

  3. Mastodons

  4. Rhinoceroses

Show answer
Correct Option: D
Explanation:

Rhinoceroses are not members of the order Proboscidea. They belong to the order Perissodactyla.

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