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user100 [1]
3 years ago
15

Explain how nitrate ions help plants to grow.

Biology
2 answers:
Ahat [919]3 years ago
8 0

Answer:

Explanation:

Both nitrate ions and ammonium ions can be taken up by plants (some prefer one to the other). These ions provide nitrogen for the plant to make its own amino acids for protein synthesis. Except in very high nitrogen soils, the addition of extra nitrate will stimulate plant growth.

guapka [62]3 years ago
4 0
It’s provided nitrogen for the plants
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You are served dessert at a restaurant. You want to know what % of the calories in the dessert are from fat. The menu states tha
jasenka [17]

Answer:

39.82 %

Explanation:

Proteins and carbohydrates provide 4 calories per gram. On the other hand, fats provide 9 calories.

We can first calculate the calories of protein + carbohydrates:

       (30g + 4g) x 4 = 136 calories

And we must calculate the calories provided by fat:

        10g x 9 = 90 calories

Now to get the percentage we must see how many calories the dessert has in total:

          136 + 90 = 226 cal

This represents 100% of calories. And now we need to find out how much 90 calories are from the total.

           226 cal -----> 100%

             90 cal ------> X

       (90 x 100) / 226 = 39.82 %

4 0
4 years ago
Write the procedure to observe human cheek cell​
scoundrel [369]

Answer:

To observe the cheek cell,

  • Take a tooth pick use its blunt side to scrap inside the mouth.
  • You will see some deposition on the blunt side of tooth pick, make a smear on the clean slide in the center using that tooth pick.
  • Add a drop of methylene blue solution and place a coverslip, make sure that bubbles are avoided i.e. coverslip should be placed in the inclined manner.  
  • Remove the excess solution and observe it under the microscope first under 4X and then under 10X.

Observation:  

  • The cells observed are squamous epithelial cells. The small blue dots seen inside will be the bacteria from our teeth and mouth.
4 0
3 years ago
A snapdragon with red flowers is crossed with a snapdragon plant with white flowers. The offspring produced have pink flowers.Wh
disa [49]

The answer is D) incomplete dominance

5 0
3 years ago
Read 2 more answers
If you were on an expedition to the moon and had to find an energy source, which would you choose?
igor_vitrenko [27]

Answer:nuclear reactor, solar panel

Explanation:there are several papers about going to moon and making a working habitat system a moon base, but we need power and i am confuse with which is best source for generating power for moon mission.

5 0
3 years ago
The preserved remains or traces of living things are called
telo118 [61]

Fossils should be your answer

Fossils usually are bones, as bones are strong, and can last for long amounts of time without breaking down.

hope this helps

4 0
3 years ago
Read 2 more answers
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