Answer:The cell membrane functions as a barrier that makes it possible for the cytoplasm to maintain a different composition from the material surrounding the cell. The unit membrane is freely permeable to water molecules but very impermeable to ions and charged molecules. It is permeable to small molecules in inverse proportion to their size but in direct proportion to their lipid solubility.
Explanation:
Answer:
gravity
Explanation:
gravity is the reason why regular things can't float, why we land when we jump, and why we can't fly.
gravity pulls us towards the ground, towards the center of the earth (inner core)
D.... is the answer potential energy is energy stored in an object from its position.
Answer:
(B)False
Explanation:
active transport is the movment from a region of higher to a region o lower concentration
Answer:
The outside only looks pigmented because of the color reflecting off it, but the inside is white and unpigmented because it is reflecting all the colors. Does this help?
