The net movements of molecules of gasses and particles from a region of higher concentration to the region of lower concentration based on diffusion gradients without a separating medium is called Diffusion.
Osmosis is the movement of water molecules from the region from a region of higher water potential to that of lower water potential across a separating medium of semipermeable membrane.
Because of exposure of the lettuce to sunlight, there is rapid diffusion of water molecules from the cells of the lettuce on the sunny day than into the cells from the environment. Because the turgor pressure has dropped to zero, so water molecules diffuse from the region of higher water potential (the cells of the lettuce) to region of lower (sounding air). This results to shrinking of the cells, called witting.
However, as she waters the lettuce, water molecules diffuses into the cell and move up the cells through osmosis, the water molecules makes the lettuce cells turgid. The turgor pressure has returned to normal . This explains the firmness.
Water diffuses into the vacuole which has capacity to store water. The presence of water increases vacuole's volume which expands through osmosis, and therefore changes it shape. The changes in shape leads to firmness.
Ms. Milly can keep the stalk of the lettuce in flower pot filled with water. The continues to keep the cells of the lettuce turgid, by replacing the lost water through diffusion into the sunny environment to prevent wilting,
More-brainly.com/question/25811244
Cytoplasm; 4
Nucleus; 2
Plasma Membrane; 1
Organism; 5
Vacuole; 3
Nucleolus; 7
Cell Wall; 6
Hello there,
Let me explain you a few thing worth to know about intelligence.
Intelligence is a ability to learn more things and consume less time for learning them.
For a person to called intelligent it takes a few factors: Environment, Education and Genetics.
If the person is raised in well cared environment and it is encouraged by his/her parents to start learning about things much earlier than other kids he/she will gain a bit higher intelligence because while he/she is a kid, evolving process is the fastest. Even when a kid grows up to teen he still could be encouraged to learn new things. Education has a same impact expect it ends at some time or rarely continues forever it's up to a person to decide about it. And finally genetics which is probably the most significant factor for intelligence. If your mother and your father are both intelligent it's very likely you are too. However if one of the parents is intelligent and other is not then the intelligence is inherited recessively, what that means is that the chances of you being intelligent is 25:75.
Surroundings do not have a direct influence on one's intelligence it must include genetic factor or educational factor for a person to be encouraged to start being called an intelligent person.
Hope this helps answer your question!
r3t40
Answer:
A. DNA polymerase
Explanation:
DNA polymerases (I,II,III) proofread the DNA, which helps to catch errors. Errors can be fatal to expression, creating misformed proteins or unclear information, so this is necessary.
Fun facts - the coronavirus is a retrovirus, so it doesn't proofread. That makes it much harder to find a vaccine, because it can generate new strains by the very fact of not proofreading.