Flowering (angiosperms<span>) plants </span>have<span> a number of </span>advantages or presumed advantages over<span> the other land plants (</span>gymnosperms, ferns, and mosses). ...Angiosperm<span> seeds form inside a special container (the ovary) made as a part of the flower. </span>Gymnosperm<span> means, literally, "naked seed". </span>Angiosperm<span> means, literally, "vessel seed"</span>
No you should be looking for any source. A disagreeing source can be used to counter it
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B. I think thats right :/
Answer:
V₂ = 1.32 L
Explanation:
Given data:
Initial volume = 1.25 L
Initial pressure = 0.865 atm
Final volume = ?
Final pressure = 0.820 atm
Solution:
The given problem will be solved through the Boyle's law,
"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"
Mathematical expression:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = initial volume
P₂ = final pressure
V₂ = final volume
Now we will put the values in formula,
P₁V₁ = P₂V₂
0.865 atm × 1.25 L = 0.820 atm × V₂
V₂ = 1.08 atm. L/ 0.820 atm
V₂ = 1.32 L
Nonpolar and small polar moleculescan pass through the cell membrane, so they diffuse across it in response to concentration gradients. Carbon dioxide and oxygen are two molecules that undergo this simple diffusionthrough the membrane. The simple diffusion of water is known as osmosis.
This arrangement means that only small, uncharged molecules can pass through the membrane. The membrane is called semipermeable, meaning that some things can pass through without assistance, while other things cannot. Water is a charged molecule, so it cannot get through the lipid part of the bilayer. In order to allow water to move in and out, cells have special proteins that act as a doorway. These proteins are called aquaporins (aqua = water, porin = pore).
hope this helps