Free-rider
Conflict of Interest
free-rider problem
Marginal benefit 'occurs' for any benefit (price) function, since a marginal term is simply the first-order derivative of its parent function. Marginal benefit is strictly greater than zero only when a benefit function is always increasing in total benefit over its domain.
eukaryotes
Proteins are made
the main problem is a problem that occurs in the middle of the story
the main problem is a problem that occurs in the middle of the story
A scope creep occurs
Extralegal means "outside of law" and refers to an activity that occurs which is unregulated by law, or may be contrary to law (illegal, unlawful). It may also be applied to informal adjudications such as those by groups or associations.
volcanic activity
The cycle of sunspot activity.
yes (probally)