Please help for some reason I just dont get it​

Consider the title and souce of the following articles. which one is most likely to exhibit a bias? (a) how to roast beef," by the food editor of a magazine (b) americans experiencing greater fatigue than previous generations, " by a harvard researcher (c) "americans' worsening eyesight not related to computer screen usage," by the public relations director of a major computer manufacturer (d) "sharing the burden: a history of cooperation," by a college professor

What is a mechanism by which organisms maintain homeostasis when the level of one substance influences the level of another substance or the activity of an organ.

Which sentence is written correctly? mrs. ellis, a petite woman, wore the finest dresses from paris. mrs. ellis a petite woman, wore the finest dresses from paris. mrs. ellis, a petite woman wore the finest dresses from paris. mrs. ellis a petite woman wore the finest dresses from paris.