Answer:
Nurture
Nature
Explanation:
The lecture based on nurture will involve a discussion about whether external factors such as the environment, culture, social, etc have affect your grooming and behaviour or not. It does not involve anything biological.
The second lecture will be based on nature where the role of genetics and other biological factors will be discussed. It will shed light on the extent to which biological factors shape human behaviour and personality.
The answer is authenticity. Authenticity in anthropology reflects an object's materiality and if we dig deeper into it, authenticity does not only pertains to the age of the object but also to its age-value. Age-value signifies its past experience and condition like its wear and tear and its decay and disintegration.
Random sampling is important because it gives a more accurate view of different people's views of the topic.