im dum.b and suck at science so can someone answer? please

Myostatin (GDF-8) is a member of the transforming growth factor β superfamily of secreted growth and differentiation factors that is essential for proper regulation of skeletal muscle mass in mice. Here we report the myostatin sequences of nine other vertebrate species and the identification of mutations in the coding sequence of bovine myostatin in two breeds of double-muscled cattle, Belgian Blue and Piedmontese, which are known to have an increase in muscle mass relative to conventional cattle. The Belgian Blue myostatin sequence contains an 11-nucleotide deletion in the third exon which causes a frameshift that eliminates virtually all of the mature, active region of the molecule. The Piedmontese myostatin sequence contains a missense mutation in exon 3, resulting in a substitution of tyrosine for an invariant cysteine in the mature region of the protein. The similarity in phenotypes of double-muscled cattle and myostatin null mice suggests that myostatin performs the same biological function in these two species and is a potentially useful target for genetic manipulation in other farm animals.

The transforming growth factor β superfamily encompasses a large group of secreted growth and differentiation factors that play important roles in regulating development and tissue homeostasis (1). We have recently described a member of this family, myostatin, that is expressed specifically in developing and adult skeletal muscle and functions as a negative regulator of skeletal muscle mass in mice (2). Myostatin null mice generated by gene targeting show a dramatic and widespread increase in skeletal muscle mass. Individual muscles in myostatin null mice weigh 2- to 3-fold more than those of wild-type mice, primarily due to an increased number of muscle fibers without a corresponding increase in the amount of fat. To pursue potential therapeutic and agricultural applications of increasing muscle mass by inhibition of myostatin activity, we have been characterizing myostatin in animals other than mice. Here we report that the myostatin gene is highly conserved among vertebrate species and that two breeds of cattle that are characterized by increased muscle mass (double muscling), Belgian Blue (3) and Piedmontese (4), have mutations in the myostatin coding sequence. These results demonstrate that the function of myostatin has been highly conserved among vertebrates. hope it helps

Answer:

d

a...............................

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Nebula: is an interstellar cloud of dust,hydrogen, helium and other ionized gases.

protostar: is a very young star that is still gathering mass from its parent molecural cioud.

Red Giant: is a luminous giant star of law or intermediate mass in late phase of stellar evolution.

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See Explanation

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This study examined the atmospheric pollution created by some waste treatment and disposal facilities in the State of Kuwait. Air monitoring was conducted in a municipal wastewater treatment plant, an industrial wastewater treatment plant established in a petroleum refinery, and at a landfill site used for disposal of solid wastes. Such plants were selected as models for waste treatment and disposal facilities in the Arabian Gulf region and elsewhere. Air measurements were made over a period of 6 months and included levels of gaseous emissions as well as concentrations of volatile organic compounds (VOCs). Samples of gas and bioaerosols were collected from ambient air surrounding the treatment facilities. The results obtained from this study have indicated the presence of VOCs and other gaseous pollutants such as methane, ammonia, and hydrogen sulphide in air surrounding the waste treatment and disposal facilities. In some cases the levels exceeded the concentration limits specified by the air quality standards. Offensive odors were also detected. The study revealed that adverse environmental impact of air pollutants is a major concern in the industrial more than in the municipal waste treatment facilities but sitting of municipal waste treatment and disposal facilities nearby the urban areas poses a threat to the public health.

Answer: the 3rd one

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Answer:

1. All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... Flooding rivers wash away soil.

2. All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... water evaporates from the ocean into the atmosphere.

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cevap:

Merhaba Kız Burada Cevap: 1a : bir ülke veya bölgede insan veya sakinlerin tam sayısı.

b : bir alanı işgal eden veya bir bütün oluşturan bireylerin toplamı.

c : belirli bir enerji seviyesindeki parçacıkların toplamı — özellikle lazerdeki atomların kullanılması.

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Would you like help with anything about biodiversity? I'd be glad to help! :D

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The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere. Radiatively active gases in a planet's atmosphere radiate energy in all directions.

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BMI

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Yaas

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the answer to that is A aquaculture

hope this helps pls give me brainless

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neritic zone

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natural selection :)

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The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

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The main cause of poor air quality and acid rain in Shenandoah National Park is sulfur and nitrous oxides from coal burning and automobiles.

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sodium-potassium pump

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resources are used to give the plant more energy and energy is used to help develop the fruit. kind of like when humans are pregnant. we tend to eat more food and be hungrier than usual because we have an extra person to feed, so we need more resources and energy.

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what that person said

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C. Immune system

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If a factor became more abundant, there would still be competition, but there would be less. *See below for an explanation that makes a little more sense (No, I am not sending you a link)*

Explanation:

In every ecosystem, there is competition. The competition could be for mates, food, shelter... anything, really. However, when those resources become more prevalent, there still might be competition, but there would probably be less than before. Let's try an example: Imagine that we were about to endure an incredibly strong hurricane. If you have ever prepared for a hurricane, you would most likely understand that if you get to the stores too late, there most likely wouldn't be much to choose from. Everything would be cleared from the shelves. Now there is competition for resources such as food and water that we would need to spend several days without power and electricity. However, if the shelves were to restock and everything is replenished, there wouldn't need to be any fighting over toilet paper, right? The same happens with plants and animals. If there is a sudden abundance of resources, they no longer need to compete so aggressively. *You might also see an increase in population, too*

Sorry, I gave such a wordy answer. I just really, really, really want you to understand so you good grades. I hope you understand :) :) :)

If the factor became more abundant or unrestricted, the competition will definitely increase among the organisms in the ecosystem.

Competition may be defined as a type of species interaction that significantly affects both species negatively because both species here compete for the same resources. It is a type of negative-negative interaction.

According to the context of this question, if a factor or resource remarkably increases its abundant and became unrestricted, it will definitely lead to the process that increases the competition between two or more species. This is because it allows the organisms to move away from their original niches.

Therefore, if the factor became more abundant or unrestricted, the competition will definitely increase among the organisms in the ecosystem.

To learn more about Competition, refer to the link:

https://brainly.com/question/10846994

#SPJ2

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Secondary succesion because secondary succession follows a major disturbance, such as a fire or a flood.

Answer: The secondary succession is going to have the biggest impact

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I think A could be the correct answer