Trace a Drop of Blood from the Superior Vena Cava

question 41

Essay

Trace a drop of blood from the superior vena cava to the aorta.Include all the heart chambers,valves,and blood vessels that the blood passes through.

---

Definitions:

Ecology

A discipline of biology that studies the interrelations among living things and their environments.

Zero Population Growth

Point at which the birth rate equals the death rate. A population with zero population growth does not change in size.

Increase

A rise or growth in quantity, size, intensity, or some other measure.

Population Density

The number of individuals of a species per unit of area or volume at a given time.