The correct sequence of engine operation is given by option C. intake, power, compression and exhaust. The first step is the intake of air, in the case of petrol engines, fuel is taken in as well. The second step is compression. The third step is combustion or power, in this part, the fuel is injected. The last step is exhaustion which refers to the blowing out of the waste gases from combustion.
Although Horace was born 26 weeks after conception, he was able to survive and become a happy and healthy 2-year old boy because he was able to reach the age of viability. The age of viability is reached during week 21-22 of the pregnancy. In this stage, the lungs gain some ability to breathe air. Thus, survival outside the womb may be possible for some babies.
Answer:
circulatory system
Explanation:
Where do you think the nutrients from the food that you eat go after digestion? The entire point of eating is to get energy and nutrients tot he other parts of the body and to do that you need the circulatory system.
