Answer:
Salt or sugar ions in water are much smaller than the gelatin molecules in the candy. ... Because of osmosis, water molecules move to an area with more solute in it to balance things. The catch is that the water is locked up in the candy and can't move. The Gummi Bear can't shrink further, so it stays about the same size.
Explanation:
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Gummy bear grow when soaked in sugar water because of osmosis, water molecules move to an area with more solute in it to balance things.
What do you mean by osmosis?Osmosis is the movement of solute molecules from lower concentration to a higher concentration of solution through a semipermeable membrane.
During osmosis, the solvent moves from the solution that is lower in solute concentration to the solution that is higher in solute concentration.
Osmosis helps in stabilizing the internal environment of the organism by balancing the levels of water and intracellular fluids. The nutrients and minerals enter the cell by osmosis which is necessary for the survival of cells.
Learn more about osmosis:
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A study is being done to test the effects of temperature on the number of microbial colonies. Four different incubators are set up, each at a different temperature with one culture plate in each. Each plate has the same nutrient content, pH, and are inoculated with microorganism samples from the same source. At the end of the experiment, the number of colonies on each plate is counted. What is the independent variable
Answer:
The correct answer is - the different temperatures of incubators.
Explanation:
An independent variable is a variable in a study or research which is manipulated or changed to check or find the effect on the dependent variable. The independent variable is the only factor that changes in research while other factors remain constant that can affect the result in the study.
In this case or study, there is the only factor that is manipulated is the temperature of incubators is manipulated to see the effect of temperature on the number of microbial colonies. Thus, the different temperatures of incubators is the independent variable here.