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Anika [276]
3 years ago
5

How are control and variable related

Biology
1 answer:
andreyandreev [35.5K]3 years ago
8 0
An independent variable is the variable that is changed. A dependant variable is the variable that is measured. And the control refers to all the other variables that need to be controlled in the experiment.
For example, if you were to conduct an experiment to see how quickly different amounts of water boiled; the independent variable would be the amount of water, the dependant variable would be the time it took to bail and the controlled variables would be the type of water, the temperature and type of heat source, etc.
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If a cell is placed in an isotonic medium, there will be no net movement of water. True or false?.
ASHA 777 [7]

It is true.

<h3>What is isotonic medium?</h3>
  • A solution that has the same amount of salt as cells and blood. In hospitalized patients, isotonic solutions are routinely utilized as intravenous fluids.
  • When a cell is immersed in an isotonic solution, there is no net movement of water into or out of the cell, and the volume of the cell remains constant.
  • Isotonic solutions include 0.9% normal saline and lactated ringers. A hypertonic solution is one that has a greater solute concentration than the solution across the semi-permeable barrier.
  • The isotonic solution allows the cells to move water and nutrients in and out of the cells. This is necessary for the blood cells to perform their function of supplying oxygen and other nutrients to other parts of the body.

To learn more about isotonic solutions from the given link

brainly.com/question/19464686

#SPJ4

7 0
1 year ago
Where is the potential energy in food stored?
alexgriva [62]
Food cant move unless psychically moved by a human so thats the potenial energy it is not stored any were.
6 0
3 years ago
Read 2 more answers
Someone please help me
lbvjy [14]

Answer:

Option B: Molecule 2

Explanation:

'Equilibrium of a molecule inside and outside a cell' means that there are similar numbers of that molecule on the inside and the outside. (hence 'equilibrium')

The number of each molecule is as follows:

Molecule 1 - Inside: 3, Outside: 5

Molecule 2 - Inside: 2, Outside: 3

Molecule 3 - Inside: 1, Outside: 5

Molecule 4 - Inside: 7, Outside: 4

Therefore the correct option is option b. 2

This is because the number of molecules inside the cell and outside the cell are the closest together, most similar out of all the molecules.

Hope this helped!

5 0
3 years ago
Use the drop-down menus to complete the sentences.
creativ13 [48]

Answer:Chlorophyll, carbon dioxide, Oxygen

Explanation:

4 0
3 years ago
Which elements are the most abundant in living organisms? Select all that apply.
kkurt [141]

Answer:

Carbon, sulfur, hydrogen, oxygen, and nitrogen

Explanation:

3 0
3 years ago
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