Which statement best defines the term cancer? a. cancers occur when normal cells grow rapidly. b. cancers are normal growths that occur in all tissues. c. cancers are tissues that grow in abnormal places. d. cancers occur when abnormal cells grow uncontrollably.

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Are gametes exactly the same? explain why or why not?