I think the answer is<span> all species evolve from pre-existing species. This was based on Charles Darwin's Theory of Evolution which he learned during his expeditions.He identified that some fossils have similarities with other existing animals, in which he believed were a part of adaptation in order to survive.</span>
It is a b c d it is all of the above!!!! no its accually a
Answer:
Blood pressure is usually defined as the pressure exerted by the blood that circulates on the walls of blood vessels. This pressure is created when the heart pumps blood continuously throughout the circulatory system.
The blood pressure have two numbers, one at the top and one at the bottom. The number showing at the top shows the amount of pressure exerted on the arteries when the muscles associated with the heart gets contracted. This is commonly considered as the systolic pressure. On the other hand, the number at the bottom shows the amount of pressure that is exerted by the heart muscles between the heart beats and this is known as the diastolic pressure.
The systolic blood pressure is more important compared to the diastolic blood pressure because it enables the person who measures the blood pressure or a doctor, to determine the risk of having a heart attack.
Answer:
All are linked by their common interaction as essential parts of the plant cycle.
Explanation:
The "Carbon Cycle", is most often discussed, because, of its impact on, and effects from atmospheric CO^2 content. The NITROGEN CYCLE is also mentioned frequently, because, of its major role in plant growth. Both nitrogen, and phosphorous are often added to crops as fertilizers; to enhance production of food. This impacts the nitrogen, and phosphorous "Natural Cycles," in much the same way that burning hydrocarbons impacts the carbon cycle. Recognizing the inter-dependencies of the three cycles is also important when considering the possibility of making a change to any one of them.
Hope this helps.
