The bar graph below shows the number of tickets sold for each of the seating sections in a baseball stadium.
Ticket Sales
1000
800-
Number of sales
600-
400-
200-
0-
Lodge
Bleachers
Dugout
Upper Deck
Lower Deck
Seating section
Based on this graph, how many bleacher seats were sold?

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.