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3 years ago

Please help Explain why a lack of gravity might cause muscles to weaken

Biology

2 answers:

Elodia [21]3 years ago

7 0

Answer:

Lack of gravity causes you to use less work to move your muscles.

Explanation:

If on Earth your arm weighs 3 pounds, the muscle will only have to move 3 pounds of force. For example, if you were to go on the moon, your arm would have the same mass but there would be less gravity pulling it dow. So now your muscles only need to pull 1 pound. Over extended periods, you would be working less, thus not using your muscles to fullest potential and in result you would get weaker.

Oksi-84 [34.3K]3 years ago

7 0

Because astronauts work in a weightless environment, very little muscle contraction is needed to support their bodies or move around. Without regular use and exercise our muscles weaken and deteriorate. It's a process called atrophy.

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What is true about translation? Choose ALL that apply.

Licemer1 [7]

In the process of translation, the statement stands correct and applies are as follows:

The ribosome has two sub-units that work together.
Amino acids are joined by peptide bonds.
Each tRNA brings in exactly one amino acid that corresponds to the anti-codon.
The order of the amino acids is determined by the mRNA which is transcribed from DNA.

Answer: Options A, B, C, and E

Explanation:

In the process of translation, ribosomes are the structural unit where the translation is being performed and it has the two sub-units which enact together the translational process.

Any two amino acids are bonded together by peptide bond and tRNA brings one amino acid at a time which corresponds to the anti codon. The order of amino acids is determined by mRNA transcribed from the DNA, and not from the ribosome. Thereby, all given options are correct except the option D.

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3 years ago

9(5x + 1) ÷ 3y

juin [17]

Answer:

$\frac{9(5x + 1)}{3y} \\ = \frac{3(5x + 1)}{y} \\ = \frac{15x + 3}{y}$

3 0

3 years ago

Explain how answering questions would help the genetic counselor understand the specific genetic causes and severity of the pers

vodka [1.7K]

A genetic counselor is a health-care worker who has received specialized training. They are experts in medical genetics as well as counseling.

For people who are affected by hereditary diseases, genetic testing brings a slew of questions and concerns.

Therefore, genetic counselors assist in identifying families/members of families that may be at risk of developing a genetic condition.

They may also assist in collecting and analyzing family history and inheritance patterns, calculating recurrence risks.

After getting all the relevant information, they can then provide information about genetic testing and related treatments.

Learn more about a genetic counselor: brainly.com/question/15821814

3 0

2 years ago

Could receiving extra chromosomes happen to the tasmanian devil? Why or why not?

Kazeer [188]

Answer:

Yes, extra chromosomes can be received by the tasmanian devil.

Explanation:

Extra chromosomes can be received by the tasmanian devil due to tumor disease in the tasmanian devil. In the beginning the old genome of tasmanian devil has 13 chromosomes but with the tumor disease, it receives one extra chromosome and completed 14 chromosomes. Tumor occurs when the dead cells are not removed from the body and the new ones are formed.

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3 years ago

In light of the all or none law of muscle contraction, how can you explain the graded response?

Andrews [41]

In the "all or none" law of muscle contraction, it states that when the stimulus applied exceeds threshold then the the nerve sending signals to a few muscle fibers will give a complete response; contraction. Graded response is dependent on how many motor units have been recruited. The more motor units, the greater the force in the contraction.

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3 years ago