Provide a possible explanation for the increase in size and weight of the elephants over millions of years.

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 produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms