Answer:
Surface Tension --> The tension of the surface film of a liquid caused by the attraction of the particles inthe surface layer by the bulk of the liquid, which tends to minimize surface area
High Specific Heat --> The amount of heat or energy required to raise the temperature of a substance by 1 degree celsius
Explanation:
first one in the dictionary and the second one from reference.com
Answer:
The embryo develops the heart, nervous system and face.
Explanation:
The nervous system is one of the first things to develop, following is the heart and then their face. Physical traits which also develop are the arms, legs and sexual organs.
Answer:
Well, we actually evolved from a single cell organism. BUT, in this case it is
answer B
Explanation:
Like starch, cellulose is a complex carbohydrate made up of many molecules of glucose linked together. But unlike starch, plants do not use cellulose to store energy. Instead, plants use cellulose as a structural molecule. It forms the cell wall that gives plant cells shape and support.
The valves in the heart make sure that blood goes in only one direction. For example, when blood is pumped from the left ventricle the mitral valve won't allow the blood to come back into the left atrium. And the aortic valve will prevent the blood from coming back into the left atrium from the aortic arch.
