Scientists establish the age of a rock or fossil based on natural radioactive decay and certain elements such as potassium and carbon, this is used to make reliable “clocks” to date ancient events.
(Sorry if not all is accurate hope it helps)
The pig heart is big,and the chicken heart is small.
True because the mitochondria is the major organelle that provides energy for the body
It increases the chances of lions surviving a natural catastrophe.
hope this helps :)
