What is a "malignant" tumor?
a. a mass of cancerous cells
b. a single mutated cell that could potentially develop into cancer
c. a mass of cells that grows out of control and spreads to other tissues
d. a mass of cells that grows out of control but remains at the site of origin

C. Malignant Tumors are cancerous cells that grow out of control and can eventually spread to different tissues

1- a    2 - d3 - e4 - f5 - c6 - g7 - h8 - b

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.