When forests have been cut down, new native trees can be planted
Answer:
I can think of several reasons
Explanation:
- Not all the offspring will survive until they are old enough to propagate
- Disease and accidents will kill some mature individuals before they can produce six offspring
- Predators will kill the weak and infirm individuals
- Poachers will kill every elephant they can find for their valuable ivory
- The land has a limited carrying capacity. Each area has a limited amount of resources available, so the population will level off as it approaches this limit.
The answer is the cartilage and bronchi.
When baroreceptors sense a drop in blood pressure, the vasomotor center responds by triggering peripheral vasoconstriction. When there is decreased blood pressure thei baroreceptor firing decreases, thus decreasing the activity of cardiac inhibitor centers, and increasing the activity of accelerator centers and the vasomotor center, therefore this results to an increased cardiac output and an increased vasoconstriction which results to increases blood pressure back to normal.