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Paul [167]
2 years ago
11

A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is p

otted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
13. Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time?
Biology
2 answers:
Anna11 [10]2 years ago
7 0

Answer:

Plant A listens to classical music for three hours each day

Explanation:

  • Music affect plant growth of plants through the vibrations that it creates to the sound waves.Classical music causes more pressure to the sound waves causing vigorous vibrations  which is picked up by the plants speeding up the protoplasmic movement in the cells.
  • The vibrations causes movement of  the plant cells which speed up growth of the plants by stimulating the plants to produce more nutrients enabling them to germinate having more leaves,greater in size and other improved characteristics which means the plant's genetic chromosomes were changed.  
  • Also in the soil  is able to produce good fungi and bacteria encouraging better root development due to healthy vines resulting to vigorous growth and better fruit.
  • Moreover the plants are able to receive special attention and care from the farmer thus enhancing faster growth.

EleoNora [17]2 years ago
6 0

Answer:

The correct answer is the kind of music each plant listens to.

Explanation:

A variable refers to any condition or element whose value gets modifies in an experiment. A variable can take place in distinct quantities or types, and three kinds of variable, that is, dependent, independent, and controlled can be witnessed in an experiment. In the experiment mentioned, the kind of music each plant is listening to is the variable.  

It is an independent variable whose value is modifying as it prevails in distinct kinds and it is the one that the student is using to witness its effect on the growth of the plant. In the experiment, this variable that differs also generate distinct effects or outcomes.  

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Oh, no... you dropped your study flashcards, and now they're out of order! Put them back into the correct order for a eukaryotic
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The given question is incomplete, the complete question is:

Oh, no... you dropped your study flashcards, and now they're out of order! Put them back into the correct order for a eukaryotic cell.

a.  "Combine the mRNA strand with a ribosome and a tRNA carrying a methionine."

b. "Unwind the DNA molecule near the promoter."

c. "Exit the nucleus to the cytoplasm."

d. "Transcribe the complementary RNA strand."

[Tip: you might want to work out the correct order on a piece of scratch paper before selecting from the options below.]

c - d - b - a

b - d - c - a

c - b - d - a

d - b - c - a

b - d - a - c

Answer:

The correct order would be b, d, c, a.

Explanation:

First unwinding of the molecule of DNA takes place close to the promoter. After that transcription of the complementary RNA strand takes place, then mRNA moves out of the nucleus into the cytoplasm. Ultimately, the combination of ribosome and tRNA carrying a methionine takes place with the mRNA.  

The order is based upon the central dogma of the cell. Based on the central dogma concept, the transcription of the mRNA takes place in the first place, which then gets transported out of the nucleus into the cytoplasm in the eukaryotic cell. The unwinding of DNA takes place close to the sequence of the promoter for the process of transcription.  

In the promoter region, various transcription factors are present and binding of RNA polymerase takes place with the template strand. The generated mRNA then get transported out of the nucleus into the cytoplasm. Post transcription, translation of mRNA takes place with the assistance of tRNA and ribosome. In the mRNA, the start codon generally codes for methionine because of which the tRNA that carries methionine identifies the start codon, and the process of translation gets initiated.  

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