Debris is the remains of something that has been destroyed or broken up. however, plankton is the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water. its the same, debris can be non living or living while plankton cab only be a living thing
The mirrors are located in the medulla
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
Moon, Venus and Mars are the closest.
