In the process of circulation, oxygen-depleted blood is pumped away from the
heart and toward the lungs. Oxygen-rich blood then returns to the heart. During
this process, the heart works in conjunction with which body system?

Abiologist counts the number of rabbits in a population each year and observes a decrease in population. since the coyote population has exploded, the biologist concludes that the coyote population has had a negative interaction with the rabbit population. which describes the biologist’s actions? a.) experimentationb.) inferencec.) observationd.) interacting