Can you help me place the science and I will give you a brain list

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?

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.