The container below is separated into two sections by a semi-permeable membrane. Sugar molecules are too large to move across th
e semi-permeable membrane. What will happen in the container over time? * a.Diffusion will not take place so the concentration of water and sugar will stay the same
b.The water will diffuse from section 2 into section 1 until the concentration of water is balanced
c.The water will diffuse from section 1 to section 2 until the concentration of water is balanced
d.The sugar will diffuse from section 2 into section 1 until the concentration of sugar is balanced
The water will move to the section with lower water concentration until it is balanced, however, I don't know which section has the sugar and which has the water. a is wrong because the membrane is semi-permeable, so water can go through, and d is wrong because it is provided the sugar cannot move across the membrane. Hope this helps some :)
If the stimulus reaches the threshold an action potential will be generated. If the stimulus doesn't reach it no action potential will be generated. If the stimulus will be stronger the action potential will have the same amplitude. The refractory period makes it harder to generate an action potential so they decrease the frequency of action potential production.
The tar located in the La Brea tar pits is today a fossil fuel that began its formation many hundreds of millions of years ago from the bodies of marine organisms. During the last ice age that ended a few tens of thousands of years ago, some animals got trapped in the tar and left their bones behind. They are not something that created it but only got trapped in preexisting tar.
