Earth's history. In the worst one, 250 million years ago, 96 percent of marine species and 70 percent of land species died off. It took millions of years to recover.
They call it Brackish - half salt water and half fresh water, as where a river dump in the seas
Answer:
A SOURCE OF ERROR BECAUSE IFTHERE ARE MISTAKES THEN THE INFO ISNT ACCURATE
Explanation:
MARK BRAINLEST PLEASE
According to the starling law, parasympathetic effects on cardiac rate and contractility include decreasing the rate of contraction and increasing the filling time resulting in a stronger contraction.
The Frank-starling law of the heart states that the stroke volume of the heart increases in response to an increase in the volume of blood filling the heart when all other factors remain constant.
