biol 200 Flashcards
characteristic unique to human language compared to other
species.
open-ended and infinite possibilities
Among primates, which animal exhibits bipedalism independently of humans?
bonobos
What feature of human language allows for its open-ended and infinite possibilities?
Complex syntax and semantics
Which anatomical trait enables humans to have precise fine motor control and a precision
grip?
opposable thumbs
Humans are often referred to as the “naked ape” primarily due to:
Lack of body hair compared to other apes
T or F: Human bipedalism evolved independently of other mammals.
False
T or F: Human language is a closed system with finite possibilities
False
T or F: Neanderthals had a larger brain size compared to modern humans.
True
T or F: Cultural evolution in humans does not interact with genetic evolution.
False
The ability to oppose the thumb to the tips of all fingers is unique to humans among
primates.
True
What main characteristics make us humans?
- Bipedalism
- Opposable thumbs
- Language
- Cooperators
- Tool use
- Consciousness
- Large brain
- Agriculture
- Cultural evolution
advantages and disadvantages of bipedalism in humans
Bipedalism provides advantages such as freeing the hands for tool use and long-distance
travel efficiency, but it also presents challenges such as increased risk of spinal issues.
Examples of other bipedal animals include kangaroos and ostriches.
Discuss the relationship between cultural evolution and genetic evolution in shaping
human traits and behaviors.
Cultural evolution and genetic evolution interact in shaping human traits and behaviors
through processes such as gene-culture coevolution and niche construction.
Analyze the evolutionary significance of the opposable thumb in human
development, considering its role in tool use, fine motor skills, and manipulation
1.Anatomical adaptations that enable humans to have a larger brain relative to body size
include changes in skull shape, increased brain folding, and efficient energy use.
2. Human language differs from other animal communication systems in its complexity,
flexibility, and open-ended nature, allowing for infinite combinations of words and ideas.
3. The opposable thumb in humans facilitates fine motor skills, tool use, and manipulation,
contributing to our ability to grasp and manipulate objects with precision.
Why are Darwin & wallace so famous?
Provided a plausible mechanism for evolution
What is the primary mechanism proposed by Darwin and Wallace for evolution?
Natural Selection
According to Darwin and Wallace, what leads to the differen琀椀al reproductive success of
individuals within a population?
Genetic Variation
How do scientists define evolution?
Changes in the genetic composition of a population over time
