B) testable and observable
Answer:
diffusion through a selectively permeable membrane
Explanation:
The cell membrane selectively allows certain substances to enter or leave a cell . This implies that cell membranes are selectively permeable; they allow some substances to pass through, but not others.
Direct transport of materials across the cell membrane is often passive. Passive transport does not require energy to occur. Passive transport is the movement of substances from a region of higher concentration to a region of lower concentration. A concentration gradient is always required.
The diffusion through a selectively permeable membrane is an example of passive transport.
The iodine moves into the dialysis tube across the semi permeable cell membrane from a region of higher concentration to a region of lower concentration in response to a concentration gradient.
Answer:
ab “its ur mayank” ye h kya sirf mere hon smje kisi or k sath to jara bi share nahi karungi...
Explanation:
mere hon the and rhoge smje...
If you add a five to the O2, then it'll be balanced.
Answer:
Hypothesis, the amount of light must be enough to provide for the plant but not too much where it'll die and vice versa.
The amount of water should be enough that the plant can absorb it to sustain itself but too much or too little
Plant food in small quantities will help but too little or too much won't
Explanation: