BIOL 189 Exam 1 Questions And Answers (A Graded)

BIOL 189 Exam 1 Questions And Answers (A Graded) BIOL 189 Exam 1 Questions And Answers (A Graded) What are the 3 tenets of the cell theory? - -1) All organisms are made of one or more cells. 2) The cell is the smallest unit of life. 3) New cells are formed only by the division of previously existing cells. What are the 2 reasons why viruses are not living? - -1) because they are too small; smaller than cells 2) they cannot reproduce on their own; need host cell to infect then replicate What are the 3 characteristics of metabolism? - -1) only performed by living cells. 2) extraction and conversion of energy from surroundings. 3) energy utilized to maintain organism, allow it to grow, and reproduce. What is Homeostasis? - -a stable internal state resulting in favorable operating conditions inside the cell or body. What are some examples of homeostasis? - ....