A species <span>a group of organisms that have similar traits and are able to produce fertile offspring.
Hope this helps! -Chat</span>
<h3>Answer:</h3><h2>A Reaction is the rate rate which increases with a decrease in temperature.</h2>
It can be physical or chemical; a physical reaction is the one which occurs as a result to an event i.e. anger, happiness, excitement etc. Where as a chemical reaction is illustrates the process a chemical behaves when mixed with another substance.
It controls all the involuntary actions like digestion and beating of our heart
I think it's nucleic acid.
