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.
science hasnt figured it out yet
Answer:
A. potassium
Explanation:
Potassium is expected to have the greater atomic radius from the given choices of element.
Atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid states of metals.
- Across a period, the atomic radii decreases progressively from left to right.
- This is due to the progressive increase in the nuclear charge without increase in the number of electronic shells.
<u>Answer:</u> The correct statement is True.
<u>Explanation:</u>
There are two types of charges in the electric field:
- Negative charge known as electrons
- Positive charge known as holes
The above two are oppositely charged species and we also know that electric current is the flow of free electrons in a current.
Negative charges (Electrons) flow from the negative terminal to the positive terminal while positive charges (holes) flow from the positive terminal to the negative terminal. Thus, they move in the opposite direction.
Hence, the correct statement is True.
The function of the
crankshaft is to convert the up-and-dwon motion of the piston into rotary motion that can be used to power the vehicle.
I attache an image of a crankshaft.
The pistons are connected to the crank pins ans when the pistons move up an down the crankshaft rotate, and so the recoprating movement of the pistons is converted into rotary motion.
