If my memory recalls correctly. Its because of the nature of phospholipids and their double membrane layer. It basically "keeps" all the water from escaping, due to the double bilayer
Kuniper belt is equal distance to 4.039•10^9.
alpha centauri is equal distance to 2.734•10^13.
<span>Phosphorus. Phosphorus is another element that is essential for bone growth. 85% of our body's phosphorous is incorporated in our bones as calcium phosphate.</span>
To start, move the objective lens to its lowest power setting. Place a slide on the stage with the label side up and the cover slip in the middle. You can only use the coarse focus knob when the power is low. If you can't see anything, move the slide a little while you look and focus. If nothing shows up, turn down the light and move the slide a little while you're looking and focusing. Once you're in focus on low power, move the slide to make the object of interest in the middle of it. Turn the objective to medium power and only change the fine focus. If you need to, turn the objective to high power and only adjust the fine focus.
Answer: B
Explanation: During cell division, chromatin condenses to form chromosomes.
