Explanation:
A preditor-prey system, the 2 species are related by; co-evolution(because preditors eat prey that is available and plentiful, for example a rodent species.
also, the population cycle because rodents live for a short period of time in the wild, but reproduce quickly. example; spring and summer seasons is when food is most plentiful for all species of wildlife,
There are exchanges that happen continuously in our bodies. One exchange is the gas exchange, or respiratory, system. This is the system where carbon dioxide is released from the lungs into the air, and oxygen is taken into the lungs from the air. This exchange happens in the air sacs of the lungs called the alveoli.
Answer: A. A blockage in the aorta
Explanation:
A heart attack happens when one or more aorta or coronary arteries get blocked. With the passage of time, the coronary artery becomes narrow that is because of the deposition of various substances such as fat, cholesterol and other reserves. This restricts the smooth circulation of blood hence results in heart attack or heart stroke.
