Animal cells cannot produce food is the true answer.
Something that would be considered a disadvantage is in a fight where your opponent has 2 arms and you only have one arm to fight him with.
A) invertebrates even without the estimation they still cover most of the grid.
In DNA Nucletide monomer are linked to the next through covalent bonds
Hope this helps!
It uses its potential energy and converts it into kinetic energy as it falls (the lower it is during the fall it will be mostly kinetic, however the higher it is during the fall it will be mostly potential energy)
