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Mars2501 [29]
2 years ago
5

A botanist wants to see how different colored light waves influence the growth of pea plants. She puts the same number of seeds

into three identical pots with the same kind and amount of soil.she then gives them the same amount of water every three days for the length of the experiment. One pot is placed into a dark windowless closet. Another pot is left on the windowsill,and the third is placed under a lamp with a green bulb.she records the height of each plant every day for three months.
What is the independent variable in this experiment?
Biology
2 answers:
SVETLANKA909090 [29]2 years ago
6 0

Answer:

The amount of light they receive.

Explanation:

In an experiment, the independent variable is the part of the experiment that the experimenter changes. In this experiment, the only thing that's different for each of the plants is the amount of light they receive. Everything else is the same - the same amount of soil, same amount of water, same pots, and so on.

Oliga [24]2 years ago
6 0

Answer:

The amount of light

Explanation:

Bc it says she gives the same amount of water so it’s light

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By interfering with fertilization 
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What effect does the smoke have on the pH of water?​
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<u><em>Verified</em></u><u><em> </em></u><u><em>Answer ✔️</em></u>

The ph of smoke disrupts the natural ph of water( which is 7, the neutral ph)  in the atmosphere causing it to become acidic . This is dangerous as it will also have effects on rain and soil ph.

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Virtually all plants are autotrophic. But there are no autotrophic animals or fungi. What can you infer about autotrophic organi
Nataly [62]

Answer:

<h3>All the plants are autotrophic because they can prepare their own food using photosynthesis.</h3>

Explanation:

Animals & fungi are not autotrophic because they can not perform photosynthesis. In order to perform photosynthesis they should contain photosynthetic pigment i.e. chlorophyll. These are absent in animals & fungi. Apart from this animals & fungi have reserve food materials in the form of glycogen on the other hand plants stores the food in the form of starch. Animals & fungi lacks chloroplast.

5 0
2 years ago
A sample of DNA is collected from an organism. It is analyzed and determined that 20% of the DNA is made up of the base adenine.
AnnyKZ [126]

Answer:

The correct answer is -

Thymine: 20%

Guanine: 30%

Cytosine: 30%

Explanation:

According to Chargaff's rule which states that the purine residues are equal to the pyrimidines residue in DNA sample which means A+G = T+C where A is adenine, G is guanine, C is cytosine and T is thymine. It is also known that A is always equal to T and C is equal to G.

So, A+G+T+C = 100

20+20+G+C

100-40 = G+C

60= G+C

as we know G is equal to C similarly A is equal to T

Thus, G = C= 30%

    A= T= 20%

7 0
1 year ago
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Answer:

how the narrator feels about the battle.

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In the given excerpt, the first point of view has been used for storytelling. The narrator tells about the experience he underwent on January 8, 1815. He tells about his feelings about the battle.

4 0
2 years ago
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