Some elements mentioned above, such as oxygen are present in organic compunds in many occasions, but from all of the options, the one that is always present is:
A. Carbon
Carbon is found in all organic compunds because of the bonds it can form, being able to form up to 4 covalent bonds.
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BioTeacher101
6 is the answer
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Lifestyle is the causal factor a healthy or unhealthy cardiovascular system. Hence, it is important to keep tract on what you eat and practice during the day.
Some common types of cardiovascular diseases and its cause are:
<span>a. Coronary Heart Disease – this is the most common form of heart disease. It happens when arteries supplying blood to the heart narrow or harden from the build-up of plaque (fat and cholesterol). People who experience this condition will often feel chest pains, shortness of breath, and discomfort on the arms, shoulders, neck, and jaw. </span>
<span>b. Atherosclerosis – is a form of coronary heart disease where plaque builds up in the arteries causing low blood supply to the body. </span>
c. Arteriosclerosis – a condition where arteries narrow in size and harden through time
<span>d. Heart Failure – this condition occurs at a very slow rate usually caused by an injury to the heart muscle, uncontrolled high blood pressure, a heart attack, or the a heart valve fails to function. The weakened heart muscle then puts more effort in pumping blood to the body and when the heart can’t keep up with the pace, the heart just fails away. </span><span> </span>
Answer:
D
Explanation:
all living things are made up of many cells
DNA contains instructions for how cells come together
