Complete these sentences by selecting the correct answers from the drop-down menus. after one half- % of the atoms will change to a stable isotope and__ % will remain radioactive. after three half- % of the atoms will change to a stable isotope and__ % will remain radioactive. -12.5 -25 -50 -75 -87.5 me i can't quiet figure it out hehe i'll give you 25 points

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.

One of the reasons that stars are so large is because