Final answer:
Starting to walk/talk and experiencing puberty are primary examples of 1) biological influences, while they can be influenced by societal and environmental factors. Socialization plays a key role in navigating these biological milestones, with significant impact from family, school, and peers as individuals age.
Step-by-step explanation:
Starting to walk/talk and puberty are examples of biological influences. These are inherent developmental stages that occur as a result of our genetic makeup and hormonal changes. However, the exact timing and experience of these events can be affected by environmental and societal factors such as culture, education, and upbringing. For instance, while biological milestones like puberty are universal, social milestones like starting school vary across cultures and are influenced by societal norms.
It's important to understand that while the starting point is biological, our socialization experiences within our family, school, and community greatly impact how we navigate through these changes. The agents of socialization, like family and school, have the strongest impact on an individual, and environmental factors can influence the expression of our genotype. Furthermore, as we age, our own choices and peer groups play a significant role in our personal development.