The characteristic of epithelial cells that makes them ideal for providing this type of protection is that the cells are packed tightly together.
Skin, the body's largest organ,is our first and best defense against external aggressors. The many layers work hard to protect us, however when its condition is compromised, its ability to work as an effective barrier is impaired.
Answer:
<em>The volume is increased in a ratio of 64/27</em>
Explanation:
<u>The Volume of a Sphere
</u>
The volume of a sphere of radius r is given by:
If the radius was changed to r', the new volume would be:
Dividing the latter equation by the first one:
Simplifying:
Or, equivalently:
Since r':r = 4:3, thus:
The volume is increased in a ratio of 64/27
Answer: Option (C) is the correct answer.
Explanation:
When an electron is transferred from one atom to another then it results in the formation of ionic bond. Whereas when there is sharing of electron(s) then it results in the formation of covalent bond.
Chlorine being a non-metal readily accepts electron from a metal. For example, NaCl is an ionic compound.
Also, chlorine is able to combine with another chlorine atom by sharing of an electron. For example, is a covalent compound.
Thus, we can conclude that a chlorine atom can form ionic bonds by accepting an electron and covalent bonds by sharing electrons.
In order to build a hypothesis, Joan should take an educated guess at what the effect of adding salt to the water will be on the water's boiling point. For example, the hypothesis may be,
"The boiling point will increase".
This hypothesis is one that can be verified or rejected via experimentation. The next step for Joan would be to set up an experiment to test this hypothesis.
The answer is zero its says over here