Primate Features and Human Evolution

Which of the following is an adaptation for arboreal life in primates?

• Digging laws on fingertips

• Eyes on the sides of the head

• Mobile thumb

• Poor color vision

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What is the significance of the single offspring and extended parental periods in primates?

• They allow for a larger number of offspring

• They ensure genetic diversity

• It ensures survival of only the fittest

• They emphasize the importance of learned behavior

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Which of the following is a skeletal difference between humans and apes?

• Smaller cranial capacity

• Presence of a sagittal crest

• Smaller zygomatic arch

• jaw musles

What is the main selection pressure for bipedalism in early hominins?

• Energy efficiency

• Ability to climb trees

• Enhanced sense of smell

• Increased jaw muscle strength

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Which of the following brain regions is associated with speech and language?

• Primary visual cortex

• Broca's area

• Cerebellum

• Wernicke's area

What is the estimated time frame for the emergence of the first hominid ancestor?

• 1-2 million years ago

• 3-4 million years ago

• 5-6 million years ago

• 7-8 million years ago

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Which species is considered an important 'first' bipedal find?

• Australopithecus africanus

• Australopithecus afarensis

• Ardipithecus ramidus

• Orrorin tugenensis

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What environmental change is believed to have driven primates onto the ground and led to bipedalism?

• Decrease in forested areas

• Expansion of arboreal habitat

• Increase in grassland areas

• Reduction in available food sources

What is the main advantage of bipedalism in terms of height?

• Ability to see food and predators more easily

• Increased speed and agility

• Enhanced balance and coordination

Order from oldest to newest

• Australopithicus afarensis

• Ardipithicus ramidus

• Australopithicus africanus

• Orrorin tugenesis

• Homo sapien

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