Tyree is a skilled cyclist. when practicing on a stationary bike, his coach finds that when the women's cycling team enters the gym, his speed seems to increase significantly. tyree's increase in speed illustrates

Tyree's increase in speed illustrates "Social facilitation".

Social facilitation refers to the propensity for individuals to perform distinctively when within the sight of others than when alone. Contrasted with their execution when alone, when within the sight of others, they have a tendency to perform better on straightforward or all around practiced assignments and more regrettable on unpredictable or new ones.

Ongoing civil wars western roman empire finally collapsed476 c.e. romulus, the last of theroman  emperors in  the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the  roman empire  had brought towestern  europe for 1000 years was no more.