<h2>Answer:</h2>
Option B is correct.
B. shared; atoms
<h2>Explanation:</h2>
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
FALSE, although there are many different senses they are the only way you can observe something.
Cellulose belongs to carbohydrates.
Cellulose is classified as a carbohydrate, a polysaccharide, as they are formed of the glucose monomers chain. It is the prime component in the walls of the cells of plants, assisting the plants to remain upright and stiff. Humans cannot digest cellulose due to the absence of cellulase, however, it is essential in the diet as fiber.
However, the animals like sheep, cows, and horses can digest cellulose that is why they can acquire nutrients and energy they require from the grass.
The answer is electrophoresis. The electrophoresis can separate different length of DNA fragments using the agarose gel. The principle is that the DNA has negative charge and under constant volt it will move from negative to positive. And the longer the DNA is, the slower the DNA runs.
