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Natalija [7]
3 years ago
5

How is it possible for someone to put an ear to a wall and hear someone in the next room? A. Sound waves can travel though solid

s. B. The waves travel from room to room via air. C. There must be some air in the wall so the sound can travel through it. D. Sound waves change to electromagnetic waves and then back again.
Biology
2 answers:
il63 [147K]3 years ago
8 0
Its A
<span>Sound waves can travel though solids
i did the test and got 100</span>
Effectus [21]3 years ago
7 0
A. Sound waves can travel through solids... sound waves travel fastest through solids :)
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How might a geologist study the history of Earth?
Irina18 [472]
By gathering information from past facts
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3 years ago
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A student hypothesized that EC growth might be affected by the DNA from circulating erythrocytes. Is this student’s hypothesis r
kykrilka [37]

Answer: The options are not given, here are the options.

A) No the DNA in circulating erythrocytes ins needed to help transport O2 through the capillaries

B) No circulating erythrocytes contain DNA.

C) Yes DNA is responsible for cell division in most cells

D) Yes circulating erythrocytes carry DNA nutrients through the capillaries

The correct option is B.

No circulating erythrocytes contain DNA.

Explanation:

Erythrocytes or red blood cells is a biconcave disc that contain haemoglobin which help to carry oxygenated blood in the body.

Circulating erythrocytes do not contain dna because they lack nuclei and organelles, cannot synthesize any RNA, therefore cannot divide and have limited repair capabilities.

Because they cannot carryout protein synthesis, no virus can evolve and invade the red blood cells.

5 0
3 years ago
Which of the following statements are correct? Choose all that apply. Which of the following statements are correct? Choose all
tangare [24]

Answer:

During transcription, active genes are brought to the periphery of a territory.

During replication, DNA is collected in regions where replication machinery is located.

Transcription continues even as a cell has entered S-phase.

Explanation:

The statements given above are correct. The periphery territory is inter specific behavior exclusion in the cells. It receives active genes during transcription and intimidates the behavior.  The DNA is collected during replication in the regions where there is replication machinery. The transcription in cells continues even if it has entered S-phase.

6 0
3 years ago
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Round seeds are dominant over wrinkled seeds in
antoniya [11.8K]

Genotype - RR - 25%, Rr - 50%, rr - 25% (1:2:1)

Phenotype - Round seeds - 75%, Wrinkled seeds - 25% (3:1)

<h3>How explain your answer?</h3>

Let the letter "r" stand for the alleles, where R is round seeds and r is wrinkled seeds. A genotype is an individual's genes represented through alleles. Phenotypes are how the genes express themselves. In other words, genotypes will be written using letters, the alleles, and phenotypes will be the possible outcomes of the alleles.

Both of the parent seeds have the genotypes Rr and the phenotype of round seeds.

If you create punnet square (which had four boxes in total) 1 will have RR, 2 will have Rr, and 1 will have rr. These are the ratios for the genotypes. Each box represents 25%, so the percentages will be 25, 50, and 25. Finally, 3 of these boxes (RR and Rr) will result in round seeds because those are dominant. Only the genotype rr will result in wrinkled phenotype. Therefore, the ratio is 3:1 or 75% to 25%.

Thus, this could be the answer.

To learn more about genotypes and phenotypes click here:

brainly.com/question/20730322

#SPJ1

5 0
2 years ago
A 55-year-old male was admitted to the hospital with heart failure. he complains of increasing shortness of breath on exertion,
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This patient both has left-sided heart failure and right-sided heart failure. In left-sided heart failure, this patient exhibits increasing shortness of breath on exertion as well as three pillow orthopnea which indicates pulmonary congestion. This is because of pooling of blood in the pulmonary circulation. Bipedal edema, in this patient is a grade 2 bipedal edema, reflect right-sided heart failure as there is pooling of blood in the systemic circulation, causing transudation in the most dependent areas of the body. 
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