Explain how the vertebrae of a frog's spine the frog to live on land

The friction red blood cells encounter when moving past each other. cardiac output: the amount of friction blood encounters during flow through blood vessels. blood pressure: the force of the blood against the vessel wall. blood viscosity: the volume of blood pumped out by one ventricle each minute.

Donde se encuentra el adn nuclear en un organismo eucariota?

What was darwins theory of common decent