Q.1 Which of the following is considered the closest living relative of humans?
Gorillas
Chimpanzees
Orangutans
Gibbons
Explanation - Genetic studies show that chimpanzees share approximately 98-99% of their DNA with humans, making them our closest living relatives.
Correct answer is: Chimpanzees
Q.2 What is the primary diet of most lemurs?
Carnivorous
Frugivorous
Insectivorous
Omnivorous
Explanation - Most lemurs primarily eat fruits, although some species may supplement their diet with leaves, flowers, or insects.
Correct answer is: Frugivorous
Q.3 Which primate species is known for using tools in the wild?
Capuchin monkeys
Gorillas
Orangutans
All of the above
Explanation - Many primates, including capuchins, gorillas, and orangutans, have been observed using tools for foraging and other purposes.
Correct answer is: All of the above
Q.4 Which primate group is characterized by a tail that is prehensile?
Old World monkeys
New World monkeys
Apes
Prosimians
Explanation - Many New World monkeys, such as spider monkeys, have prehensile tails adapted for grasping and swinging from branches.
Correct answer is: New World monkeys
Q.5 What is the main difference between apes and monkeys?
Apes have tails; monkeys do not
Monkeys have tails; apes do not
Monkeys are larger than apes
Apes have fur; monkeys do not
Explanation - One key distinguishing feature is that monkeys usually have tails while apes, including humans, do not.
Correct answer is: Monkeys have tails; apes do not
Q.6 Which of the following primates is nocturnal?
Tarsiers
Chimpanzees
Orangutans
Baboons
Explanation - Tarsiers are small primates that are primarily active at night and have large eyes adapted for nocturnal vision.
Correct answer is: Tarsiers
Q.7 In primate social structures, a 'troop' refers to:
A mating pair
A small family unit
A large social group
An individual primate
Explanation - A troop is a social group of primates that can consist of several males, females, and their offspring.
Correct answer is: A large social group
Q.8 Which primate is known for its complex tool use and problem-solving skills in the wild?
Orangutans
Gibbons
Lemurs
Macaca
Explanation - Orangutans are highly intelligent and have been observed using sticks to extract insects or leaves to collect water.
Correct answer is: Orangutans
Q.9 Sexual dimorphism in primates refers to:
Different diets between sexes
Differences in size or appearance between males and females
Mating behaviors
Social hierarchy
Explanation - Sexual dimorphism is the physical distinction between males and females of a species, often seen in size, coloration, or features.
Correct answer is: Differences in size or appearance between males and females
Q.10 Which of the following is NOT a primate?
Lemur
Tarsier
Sloth
Gibbon
Explanation - Sloths are not primates; they belong to a different mammalian order (Pilosa).
Correct answer is: Sloth
Q.11 What is the primary function of grooming in primate societies?
Hygiene only
Strengthening social bonds
Mating ritual
Foraging strategy
Explanation - Grooming not only keeps primates clean but also reinforces alliances, reduces tension, and maintains social cohesion.
Correct answer is: Strengthening social bonds
Q.12 Which primate has the largest brain relative to its body size?
Chimpanzee
Gorilla
Orangutan
Humans
Explanation - Humans have the largest brain-to-body size ratio among primates, which supports advanced cognition and complex behaviors.
Correct answer is: Humans
Q.13 Which primate is primarily folivorous, meaning it mainly eats leaves?
Howler monkey
Chimpanzee
Orangutan
Lemur
Explanation - Howler monkeys consume mainly leaves, which require specialized digestive adaptations to break down cellulose.
Correct answer is: Howler monkey
Q.14 Which primate species is known for monogamous pair bonding?
Gibbons
Chimpanzees
Baboons
Orangutans
Explanation - Gibbons are known for forming long-term monogamous pairs, often defending territories together.
Correct answer is: Gibbons
Q.15 Primate binocular vision allows for:
Better night vision
Depth perception
Hearing improvement
Sense of smell enhancement
Explanation - Binocular vision, with overlapping fields of view from both eyes, helps primates judge distances accurately, essential for navigating trees.
Correct answer is: Depth perception
Q.16 Which primate is considered the smallest?
Mouse lemur
Tarsier
Marmoset
Capuchin
Explanation - Mouse lemurs are among the smallest primates, weighing around 30-60 grams depending on the species.
Correct answer is: Mouse lemur
Q.17 Primate locomotion involving swinging from branch to branch is called:
Quadrupedalism
Brachiation
Knuckle-walking
Leaping
Explanation - Brachiation is a form of arboreal locomotion where primates swing using their arms, commonly seen in gibbons and some other apes.
Correct answer is: Brachiation
Q.18 Which of the following primates is known to live in savannah environments rather than forests?
Baboon
Orangutan
Gibbon
Tarsier
Explanation - Baboons adapt well to open savannahs and grasslands, whereas orangutans and gibbons are primarily forest dwellers.
Correct answer is: Baboon
Q.19 The dental formula of most Old World monkeys is:
2.1.3.3
2.1.2.3
2.1.2.2
2.1.3.2
Explanation - Old World monkeys typically have a dental formula of 2 incisors, 1 canine, 2 premolars, and 3 molars per quadrant.
Correct answer is: 2.1.2.3
Q.20 Which primate is known for having the longest lifespan in captivity?
Chimpanzee
Gorilla
Orangutan
Gibbon
Explanation - Orangutans can live up to 50-60 years in captivity, often longer than most other non-human primates.
Correct answer is: Orangutan
Q.21 Which primate exhibits the behavior of 'fission-fusion' societies?
Chimpanzees
Gibbons
Lemurs
Capuchins
Explanation - Fission-fusion dynamics involve the temporary splitting and rejoining of groups, allowing chimpanzees flexibility in social organization.
Correct answer is: Chimpanzees
Q.22 Which primate is famous for its 'laugh-like' vocalizations?
Chimpanzee
Gibbon
Baboon
Orangutan
Explanation - Chimpanzees produce vocalizations resembling laughter during play and social interactions.
Correct answer is: Chimpanzee
Q.23 The study of primate behavior and social structure is known as:
Ethology
Primatology
Anthropology
Sociobiology
Explanation - Primatology is the scientific study of primates, including their behavior, ecology, and social systems.
Correct answer is: Primatology
Q.24 Which primate is known for making nests in trees to sleep at night?
Gorillas
Chimpanzees
Baboons
Gibbons
Explanation - Chimpanzees construct sleeping nests from branches in trees for protection and comfort.
Correct answer is: Chimpanzees