Human Origins - Discussion Quiz

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Quizzes Created: 12 | Total Attempts: 17,015
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  • 1/10 Questions

    Humans belong to the subfamily:

    • Cebinae
    • Homininae
    • Hylobatinae
    • Pitheciinae
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About This Quiz

The 'Human Origins - Discussion Quiz' explores the characteristics and behaviors of primates, focusing on distinctions between various groups such as lemurs, lorises, and anthropoids. It assesses knowledge on evolutionary biology, primate anatomy, and social behaviors, providing insights into human evolutionary history.

Human Origins - Discussion Quiz - Quiz

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  • 2. 

    Which of the following is NOT found in lemurs and lorises, but is found in anthropoids?

    • Dental Comb

    • Fully Enclosed Eye Socket

    • Grooming Claw

    • Unfused Mandibular Symphsis

    Correct Answer
    A. Fully Enclosed Eye Socket
    Explanation
    The fully enclosed eye socket is not found in lemurs and lorises, but is found in anthropoids. This means that lemurs and lorises have a different eye socket structure compared to anthropoids. The fully enclosed eye socket is a characteristic feature of anthropoids, which include monkeys, apes, and humans. It provides protection and support to the eye, and is an adaptation that distinguishes anthropoids from lemurs and lorises.

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  • 3. 

    How many premolars does a Platyrrhine have in its dental formula?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 3
    Explanation
    A Platyrrhine has 3 premolars in its dental formula. Platyrrhines are a group of primates that includes New World monkeys. The dental formula of Platyrrhines is 2-1-3-3, which means they have 2 incisors, 1 canine, 3 premolars, and 3 molars on each side of their upper and lower jaws. Therefore, the correct answer is 3.

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  • 4. 

    The infraorder Anthropoidea is divided into what 2 parvorders?

    • Archonta and Monotremata

    • Cercopithecoidea and Hominoidea

    • Platyrrhini and Catarrhini

    • Strepsirhini and Haplorhini

    Correct Answer
    A. Platyrrhini and Catarrhini
    Explanation
    The correct answer is Platyrrhini and Catarrhini. The infraorder Anthropoidea is a suborder of primates, and it is divided into two parvorders: Platyrrhini (New World monkeys) and Catarrhini (Old World monkeys and apes). This division is based on differences in dental and skeletal structures, as well as geographic distribution. Platyrrhini includes monkeys found in Central and South America, while Catarrhini includes monkeys and apes found in Africa and Asia.

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  • 5. 

    According to Hamilton's Rule, an individual is more likely to act altruistically towards a:

    • Cousin

    • Friend

    • Sibling

    • Stranger

    Correct Answer
    A. Sibling
    Explanation
    According to Hamilton's Rule, an individual is more likely to act altruistically towards a sibling. This is because siblings share a significant amount of genetic material, and by helping their siblings, individuals can increase the chances of their own genes being passed on to future generations. Therefore, the kinship between siblings promotes altruistic behavior as it benefits the individual's genetic fitness.

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  • 6. 

    Which of the following statements is true about Anthropoidea relative to Lemuriformes?

    • They are usually nocturnal.

    • They have a moist rhinarium.

    • They have larger brains relative to body size.

    • They have laterally placed eyes.

    Correct Answer
    A. They have larger brains relative to body size.
    Explanation
    Anthropoidea, which includes monkeys, apes, and humans, have larger brains relative to their body size compared to Lemuriformes, which includes lemurs. This suggests that Anthropoidea species have a higher level of cognitive ability and intelligence compared to Lemuriformes.

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  • 7. 

    When a female has multiple male sex partners, this is known as:

    • Harem Behavior

    • Monogamy

    • Polyandry

    • Polygyny

    Correct Answer
    A. Polyandry
    Explanation
    Polyandry refers to a mating system in which a female has multiple male sex partners. In this arrangement, a female forms a long-term sexual relationship with more than one male simultaneously. This behavior is observed in certain animal species, such as some birds and primates. Polyandry can provide various advantages, such as increased genetic diversity, shared parental care, and protection from predators. It is the opposite of polygyny, where a male has multiple female partners, and monogamy, where individuals form exclusive pair bonds.

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  • 8. 

    The form of habitual locomotion that can be observed in tarsiers is called:

    • Brachiation

    • Knuckle-walking

    • Terrestrial Quadrupedalism

    • Vertical Clinging and Leaping

    Correct Answer
    A. Vertical Clinging and Leaping
    Explanation
    Vertical Clinging and Leaping is the correct answer because tarsiers are small primates known for their unique method of moving through trees. They have long limbs and fingers that allow them to cling vertically to tree trunks and leap between branches. This form of locomotion is different from brachiation, which involves swinging from branch to branch using the arms, and knuckle-walking and terrestrial quadrupedalism, which are forms of movement on the ground.

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  • 9. 

    Catarrihini consists of all these primates except:

    • Cercopithecoids and Hominoids

    • Cercopithecoids and Strepsirrhines

    • Platyrrhines and Hominoids

    • Platyrrhines and Strepsirrhines

    Correct Answer
    A. Platyrrhines and Strepsirrhines
    Explanation
    The correct answer is Platyrrhines and Strepsirrhines. Catarrihini is a subfamily of primates that includes Cercopithecoids and Hominoids. Platyrrhines and Strepsirrhines are not part of the Catarrihini subfamily. Platyrrhines are a group of primates that includes New World monkeys, while Strepsirrhines are a group of primates that includes lemurs and lorises. Therefore, the correct answer is Platyrrhines and Strepsirrhines.

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  • 10. 

    A fused mandible (lower jaw bone) in monkeys and apes in relation to lemurs and lorises is an example of a(n):

    • Ancestral Trait

    • Derived Trait

    • Homologous Trait

    • Plesiomorphic Trait

    Correct Answer
    A. Derived Trait
    Explanation
    A fused mandible in monkeys and apes is a derived trait because it is a characteristic that has evolved and is unique to this group of animals. Lemurs and lorises, on the other hand, do not have a fused mandible, making it a trait that is derived in monkeys and apes but not in lemurs and lorises.

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  • Current Version
  • Jun 13, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 31, 2010
    Quiz Created by
    Funkytrunks22
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