Why was it important to use deionized water instead of tap water throughout this experiment?

Biology

1 answer:

pishuonlain [190]2 years ago

5 0

Most likely because you don't know what could be in tap water (chemicals, germs)

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How is energy related to the rectants and products of a chemical reaction?

elena-s [515]

Due to the absorption of energy when chemical bonds are broken, and the release of energy when chemical bonds are formed, chemical reactions almost always involve a change in energy between products and reactants.

Hope this helps

8 0

2 years ago

Give one and the main reason for an Endosperm in double fertilization in plants.

Nana76 [90]

Answer:

Double fertilization gives stimulus to the plant that results in the development of the ovary into fruit and ovules into the seed.

Explanation:

7 0

2 years ago

The aleutian islands extend westward from southern Alaska to form the northern boundary of the Pacific Ocean. These volcanic isl

MatroZZZ [7]

The correct answer is B

Subduction of a ocean plate.

Aleutian islands extend westward from southern Alaska to form the northern boundary of the Pacific Ocean when the Pacific plate gets subducted under North American Plate at a dip of 45 degrees. The pacific is an oceanic tectonic plate that lies beneath the Pacific Ocean. And thus the correct answer is option B

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2 years ago

The diagrams above show an area that was once a pasture that has since undergone changes to the vegetation over time. Which of t

Ugo [173]

Answer: The diagrams above show an area that was once a pasture that has since undergone changes to the vegetation over time.

The following changes in the hydrologic cycle is most likely to occur as a result of the change in vegetation in the area:

Decreased precipitation.

Explanation:

When we lose vegetation in an area we face serious problems, one of them is the decreased precipitation . If changes are made by man, for example, as in deforestation, the consequences are even worse.

Deforestation can cause a serious reduction of rainfall in the tropics, with serious consequences for the population not only in that region but in neighboring areas. The air that passes over large areas of tropical forest produces at least twice as much rain as that which travels over areas of low vegetation .

In turn this also affects the other factors of the cycle. The vegetation contributes moisture through an evapotranspiration process, as it is called the evaporation of the rivers together with the transpiration of the plants. This moisture is transported by the winds.

We can say then that the loss of vegetation in an area (whether on purpose or not) will corrupt several cycle factors, mainly damaging the rainfall rate.

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2 years ago

The salt concentration in a cell's cytoplasm is 0.9%. The cell is placed in a 10% salt solution. Which term best describes the 1

fenix001 [56]

The term that best describes the 10% salt solution relative to the cytoplasm of the cell is ' Hypertonic'

Explanation:

When the concentration of two solutionare compared they can be described as hypertonic, hypotonic or isotonic with relation to one another.

When two solutions have same concentration and osmotic pressure they are said to be isotonic solutions.

The solution which has higher molecular concentration and higher osmotic pressure than the other solution is called hypertonic solution.

The solution which has lower molecular concentration and lower osmotic pressure with respect to other solution is called hypotonic solution.

Here the solution of salt has a higher concentration than cell sap so it is a hypertonic.

3 0

3 years ago