Both the Plantae & Animalia kingdoms.
A neuron (also known as nerve cell) is an electrically excitable cell that takes up, processes and transmits information through electrical and chemical signals. It is one of the basic elements of the nervous system. In order that a human being can react to his environment, neurons transport stimuli.
A. The birds had beaks that were adapted for feeding differently
prevents backflow into the left atrium
Answer:
Atp, because it literally Powers the cell.
