10 most extreme places on Earth. A unicellular organism is any life form that consists of just a single cell. This group includes most life on Earth, with bacteria serving as the majority. The main groups of single celled life are bacteria, archaea (both prokaryotes), and the eukaryota (eukaryotes).
A hero (masculine) or heroine (feminine) is a person or main character of a literary work who, in the face of danger, combats adversity through impressive feats of ingenuity, bravery or strength, often sacrificing his or her own personal concerns for some greater good.
Heroism in Beowulf and Sir Gawain and the Green Night A hero, according to Websterâs New World Dictionary, is someone who commits an act of remarkable bravery or who has shown great courage, strength of character, or another admirable quality. He is looked up to for the brave and noble things he has done. Though Beowulf and Sir Gawain are both considered heroes they each have many different qualities. For Beowulf his reputation as a hero depends on the opinion of others within his society, for Gawain Christianity determines his bravado.