What can elements be classified as?

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.

What are the names of these two interactions with cattle and how do they differ from each other