- Life Sciences
small ball of chewed food mixed with saliva that is formed in the mouth, which is swallowed.
the nervous system outside the brain and spinal column.
a molecule that is built up of two or more different elements that are chemically joined...
(also called herbivore) an animal that feeds directly on plant matter.
the cone-shaped region of the renal medulla, made up of the loops of Henlé and the collecting...