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2 years ago

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

Biology

2 answers:

Elodia [21]2 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]2 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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The original regimen known as Pasteurization consisted of:

algol13

Answer:

The correct option is: 4. Heat at 62.8 degrees C for 30 minutes

Explanation:

Pasteurization is the process or technique of heating packaged as well as the unpackaged liquid food, to remove pathogens and extend the shelf life. In this process, the food is usually heated at temperatures below 100 °C.

Originally, this process involved heating the food at 72.2 °C for 15 seconds and 62.8 °C (145 °F) for 30 minutes, for batch pasteurization.

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2 years ago

When the first antibiotics became available in the late 1940s and early 1950s, these antibiotics were effective against all bact

kirza4 [7]

The correct answer would be D.

After many generations, only those with genes suitable to live in harsh environments can live. These genes are passed onto their offspring and then we see a rise in antibiotic resistant strains of bacteria such as Methicillin Resistant Staphylococcus Aureus (MRSA).

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2 years ago

Read 2 more answers

Imagine that you are observing an enzyme-catalyzed reaction in the lab. Every time you add more enzyme, the reaction rate increa

Aleks04 [339]

Answer:

All the substrates are bound to the enzyme, thats why the reaction rate stopped increasing.

Explanation:

Actually an enzyme works by binding a substrate molecule to its active site, producing a product , resulting in an increase in the rate of reaction.

Enzyme + substrate = Enzyme + product

Whenever enzymes are added , reaction rate increases as the substrates are being bound to the enzyme's active sites but then occurs a stage where further addition of enzyme cannot increase the reaction rate because all the substrates have bound to the enzyme and there are no substrates left. Hence the reaction rate stopped increasing.

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2 years ago

While mutation is random, natural selection is not. In your own words, explain how this is possible

alina1380 [7]

Answer:

Mutation is a alteration in the DNA sequence in a gene during cell divison iwhere gene is coded mitakeny or due to the error. Mutatio is a random process as it can not be determind or known befor bthechange in sequence what gene or DNA would be effected by it or what genes would be transfer from the parents.

Natural selection is a process where some of the traits that are helpful in the surviving and increasing the number of individuals in a population and transfer from one generation to other according the adaption and change over the long timeline. Thus, it is not random and based on the traits that are helpful in a environment or for the survival of

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2 years ago

HELP ME QUICKLY FAST!!!!!! How does the heat move through the space between the Sun and the Earth? Match the heat transfer mecha

zheka24 [161]

It is because of what we called Greenhouse Gases. Greenhouse Gases absorbs the heat of the sun and brings it out to the earth. The heat of the sun travels 8 minutes and 20 seconds.

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2 years ago