Answer:
glucose
Explanation:
Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes. Small uncharged polar molecules, such as H2O, also can diffuse through membranes, but larger uncharged polar molecules, such as glucose, cannot.
Explanation:
When heat is supplied to the liquid through the burner then portion of liquid at the bottom will start to heat first.
This means molecules at the bottom will start to gain kinetic energy and thus intermolecular forces between them start to decrease.
As a result, they will start to move from their initial position. That is, molecules per unit volume will decrease. Hence, density will decrease and the liquid will rise upward.
Whereas when all the molecules of liquid are heated up then it will release energy into the atmosphere.
Thus, we can conclude that this happens to the portion of liquid that first begins to warm.
- It releases energy to the environment.
Answer:
mold
Explanation:
Alexander Fleming was a Scottish physician and scientist. He was known for the development of penicillin.
Alexander Fleming discovered a type of <u>mold</u> that kills bacteria, which led to the development of Penicillin.
The mold created around itself a bacteria-free circle.
Fleming experimented further and named the active substance penicillin.
These air masses move around the America they can begin to acquire additional attributes.In winter an arctic air mass(cold and dry) can move over the ocean, picking up some warmth and moisture from the warmer ocean and becoming a maritime polar air mass.<span> If that same polar air mass moves south from Canada into the southern U.S. it will pick up some of the warmth of the ground, but due to lack of moisture it remains very dry. This is called a continental polar air mass.</span>