Answer:
PETRIFIED WOOD is the answer okkkkkkkkkkkkkkkk
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.
These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
The one that Carbon footprint measures is : Greenhouse Gasses
Carbon Footprints are the Carbon Compounds emitted due to consumption of fossil fuels (such as gas oil) that could cause Greenhhouse effects
Hope this helps <span />
Answer:
Produces, and Divides
Explanation:
Bacterial Reproduction is a single cell that divides into two identical daughter cells.