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4vir4ik [10]
3 years ago
11

Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy

into and out of organisms.
Biology
1 answer:
Artyom0805 [142]3 years ago
6 0
Phi jhfhgfhfufiitjtbt thtitutuitbr Toronto tmltbt ntot t Thorvaldsen t
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evablogger [386]
The correct answer is B.
3 0
3 years ago
Kathy was making liquid growth medium for plants. The pH of the original solution was 8. The optimal pH for plant growth is 6. W
liubo4ka [24]

If referring to the question: Kathy was making liquid growth medium for plants. The pH of the original solution was 8. The optimal pH for plant growth is 6. What was the best compound to add to make it pH=6?

A) KOH

B) HCL

C) Water

D) No answer provided

Then the correct answer would be option B, to add HCL, known as Hydrochloric acid to lower the pH to 6.

In science, pH is a scale used to measure the acidity of a solution or its basicity. The scale ranges from 0 to 14. A pH of 7 would mean that the given solution is neutral, lower than 7 equates to an acidic solution, while anything above 7 becomes increasingly basic.

Option A is to add KOH, or potassium hydroxide to the original solution whose starting pH is 8. KOH is a solution whose pH is above 8,  a strong base, and is often used to increase the pH of a solution. In the question it states what the desired pH is 6, therefore we want to lower, not increase the pH. This makes option A incorrect.

Water is a neutral solution. Even though it is neutral, it is not used to neutralize basic or acidic solutions. Acid or bases may be added to water to create very diluted solutions that are nearly neutral despite containing a strong base or acid, but this is a different process than neutralization and will not give the desired pH. Option C is also wrong.

Option B is correct because HCL, known as hydrochloric acid is a strong acid, commonly used to lower the pH of a solution by increasing the concentration of hydrogen ions. Since we start with a pH of 8 and wish to achieve a pH of 6, HCL is the correct component to add to the solution. Due to option B being correct, option D that states that no answer is provided, is incorrect.

For more on pH visit:

brainly.com/question/491373?referrer=searchResults

8 0
3 years ago
What structure exits the pelvis inferior the piriformis muscle?
Tamiku [17]
<span>reformists muscle originates from the anterior front part of the sacrum, the part of the spine in the gluten region, and from the superior margin of the greater sciatic notch as well as the sacroiliac joint capsule and the tuberous ligament. Hope this helps :)))))))))</span>
4 0
3 years ago
DNA is made from two complimentary chains of______
Dmitriy789 [7]

Answer:

Nucleotides

Explanation:

I may have searched it up, heh.

3 0
3 years ago
Examine the list of cell characteristics. lack nuclei have cell walls have membrane-bound organelles are smaller than eukaryotic
Mazyrski [523]

Answer:

Explanation:

Prokaryotic cells are very simple so they have:

circular chromosome

smaller than eukaryotic cells

lack nuclei

have cell walls

5 0
3 years ago
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