Which terrestrial ecosystem or life zone produces the highest net primary productivity per year? a. temperate forest b. savanna c. tundra d. swamps and marshes e. extreme desert

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.