According to life history theory:
A stress decreases parent-child conflict
B genetic factors are of minor importance
C stress speeds up the onset of puberty
D generativity plays a key role in development
The correct answer and explanation is:
The correct answer is: C) stress speeds up the onset of puberty.
Life history theory is an evolutionary framework that aims to explain how organisms allocate resources towards growth, reproduction, and survival, with a focus on how environmental factors influence these decisions. According to this theory, organisms adjust their life strategies in response to environmental conditions, particularly those that affect survival and reproduction.
Stress, in the context of life history theory, can be viewed as a signal of environmental instability or danger. When an organism perceives high levels of stress, particularly in early life, it may interpret this as an indication that resources and opportunities for survival may be limited. As a result, the organism may adjust its life strategy by accelerating the timing of puberty to increase reproductive chances before conditions worsen. This acceleration in the onset of puberty is a way of rapidly reaching sexual maturity and engaging in reproduction, thus ensuring the continuation of the species.
For humans, this means that adolescents who experience high levels of stress (such as exposure to familial conflict, poverty, or environmental instability) may undergo puberty earlier than those in more stable environments. This response is thought to be adaptive, as it increases the chances of reproduction in uncertain environments. However, it can also have long-term consequences on physical, emotional, and social development.
On the other hand, the other options provided do not align with life history theory. For example, while genetic factors are indeed important in human development, life history theory places more emphasis on how environmental factors, such as stress, shape an individual’s life trajectory. Similarly, generativity (the desire to nurture and guide future generations) is important in later adulthood but does not play a central role in the theory’s explanation of early developmental stages.