sliding filament theory steps Calcium ions are released during depolarization. development of the actin-myosin cross-bridge. Actin and myosin filament sliding mechanism. Sarcomere truncation.
Calcium ions: The sarcoplasmic reticulum in the actin filament releases calcium ions. Myosin head is immobile. Cross bridge Act filament and myosin head create cross bridges (bonds) when calcium ions are present. Myosin head slides : Myosin head slides in the direction of the actin filament because to ATPas generated by the myosin head filament. skeletal muscle contraction has taken place. The actin filament can glide past the shortening myosin thanks to the contraction brought on by ATP release. Cross bridge: The myosin head is severed from the actin filament by too much ATP. Troponin : Actin is returned to its initial location by troponin. ATP is converted by ATPase back to ADP. Myosin.
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PLEASE HELP ME !!
What do you think could have changed from 306 million years ago to today?
Answer: Our level of technology
Explanation: As we move further to our future we have developed new technologies. This could include computers, phones, or even tools made way back hundreds of years ago. We learn to adapt and overcome with the creation of tools and technology
Hope this helps!
Does anyone know what a Ti-Liger is???
Answer:
It's a mix of a tiger and lion I think
Alpha Centauri is actually a system of three objects. Each object produces light and rotates on its own axis. The system is an average of 4 light-years from Earth. Based on this information, the three pbjects that make up the Alpha Centauri system are all
a. asteroids
b. comets
c. planets
d. stars
Alpha Centauri is actually a system of three objects. Each object produces light and rotates on its own axis. The system is an average of 4 light-years from Earth. Based on this information, the three objects that make up the Alpha Centauri system are all Stars .
Option d is correct .
At a distance of 4.37 light years, the star system known as Alpha Centauri is thought to be the one that is nearest to our solar system. Alpha Centauri A, Alpha Centauri B, and Alpha Centauri C, often known as Proxima Centauri, are the three stars that make up the stellar system.
It is a main-sequence star that resembles the Sun and has a similar yellowish colour. Its stellar classification is spectral type G2-V, and it has a radius that is about 22% larger than the Sun. It is about 10% more massive than the Sun. The International Astronomical Union Monday clarified the names of 227 stars and stellar systems, including the newly named system.
Hence , Option d is correct .
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The geological theory that states that pieces of earths lithosphere are in constant, slow motion is the theory of
Answer:
plate tectonics
Explanation:
plate tectonics the theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
I'm sorry if the answer wrong xdAnswer:
Plate Tectonics
Explanation:
The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
Discuss your interest in environmental science. Which aspects of environmental science most fascinate you? How are your personal values related to your interest in environmental science? If you could choose one job or career related to environmental science, what would it be?
My interest is environmental science is to know more about the environment.
My personal values relates to my interest in environmental science because I love the environment, nature and I'll love to know more about the topic.
If I could choose one job or career related to environmental science, it'll be an environmental scientist.
How to explain the information?I will like to know more about environmental issues including climate change, global warming, ozone layer loss, acid rains, and effects on biodiversity and marine life through the study of environmental science. These issues are not simply local or national issues; they also affect the entire planet.
I'll like to be an environmental scientist.
Natural science expertise is used by environmental scientists to safeguard the environment. Environmental experts and scientists apply their understanding of the natural sciences to safeguard both human health and the environment. They might clean up dirty areas, offer legislators advice, or collaborate with business to cut waste.
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if a student were trying to learn general geographic and economic information about a particular country, which of the following would be the most efficient and reliable tool?
Answer:
A digital encyclopedia
Explanation:
locate the sites of the five deadliest earthquakes on a world map. Just use the country if you can't find the exact location. What pattern do you observe? Would you expect to find plate boundaries here or not? Explain.
Please answer!!
In the world, the five most deadliest earthquakes that we experienced are as follows:
Maule(Chile) Earthquake (2010)– 8.8.Kamchatka, Russia Earthquake (1952) – 9.0.Tōhoku Earthquake (2011) – 9.1.Sumatra Earthquake (2004)– 9.1.Great Alaska Earthquake (1964)– 9.2.Valdivia Earthquake (1960)– 9.5.The notable pattern in these deadliest earthquakes are that they occur around the edges of the Pacific Ocean which is known as the 'Ring of Fire; where Pacific plate is being subducted beneath the surrounding plates.
The location where these deadliest earthquakes occur either have a convergent, divergent or transform plate boundaries. The plate boundary that result to most deadliest earthquakes is the convergent plate boundaries.
What makes an earthquakes deadly?The majority of the hazard to people are caused by man-made structures and the shaking caused by the earthquake. People are most at risk of being crushed by a collapsing building, drowning in a flood caused by a broken dam or levee, being buried under a landslide, or being burned in a fire.
According to the US Geological Survey, the most powerful quake was the 9.5-magnitude Valdivia Earthquake that struck Chile in 1960. (USGS). The quake triggered a tsunami, killing an estimated 5,700 people. The 2004 Indian Ocean tsunami had a magnitude of 9.3.
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The Taj Mahal was built to be a: Answer; mausoleum for a ruler's wife
Answer: If your asking for his wifes name its Mumtaz Mahal.
Explanation:
"
Question 7 The outer core is liquid. What keeps this layer molten? Cool temperatures Distance from the Sun High pressure Low pressure Minerals with lower melting temperatures
The layer of the outer core remains in a liquid state due to the high temperature caused by the Earth's mantle and the inner core. The correct option is High pressure.
The high temperature is due to the radioactive decay of materials, including uranium, thorium, and potassium. The high temperature causes the minerals to melt, including the iron and nickel which make up the outer core.
What is the Earth's outer core?The outer core is the outermost layer of the Earth's core, which lies beneath the mantle and is approximately 2,890 kilometers thick. It is composed primarily of liquid iron and nickel and has a temperature of approximately 4,000 to 5,000 degrees Celsius (7,200 to 9,000 degrees Fahrenheit). The outer core is responsible for generating the Earth's magnetic field, which is why it is critical to the planet's survival.The high pressure that occurs in the outer core is due to the weight of the mantle and other layers of rock above it. This pressure, combined with the high temperature, causes the outer core to remain in a liquid state, despite being made up of materials that are usually solid at Earth's surface.The combination of high temperature and pressure causes the outer core to remain in a liquid state, even though its mineral composition would otherwise cause it to solidify.
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early settlers in the town of dry gulch drilled wells to pump as much water as they wanted from the single aquifer beneath the town. (an aquifer is an underground body of water.) as more people settled in dry gulch, the aquifer level fell and new wells had to be drilled deeper at higher cost. in dry gulch, the supply of water is
The residents of Dry Gulch will overuse water relative to the social optimum because the marginal cost of water is increasing. (Option D)
As more people settled in Dry Gulch and the aquifer level fell, new wells had to be drilled deeper at higher costs. This increase in drilling costs represents an increasing marginal cost of water extraction. When the marginal cost of water extraction exceeds the marginal benefit to individual residents, they have an incentive to overuse water.
Each resident may fail to adequately consider the external cost of their own water use, such as the depletion of the aquifer and the potential long-term consequences for the community. As a result, the residents of Dry Gulch will likely overuse water relative to the social optimum, leading to unsustainable water consumption practices. To achieve an optimal allocation of water resources, it is important to consider the increasing marginal cost and encourage sustainable water management practices that account for both individual and societal interests.
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The complete question is: Early settlers in the town of Dry Gulch drilled wells to pump as much water as they wanted from the single aquifer beneath the town. (An aquifer is an underground body of water.) As more people settled in Dry Gulch, the aquifer level fell and new wells had to be drilled deeper at higher cost. The residents of Dry Gulch will overuse water relative to the social optimum because Multiple Choice each resident will fail to adequately consider the external cost of his or her own water use water is a scarce resource each resident will fail to adequately consider the external benefit of his or her own water use the marginal cost of water is increasing
The relative location of Augusta, Maine
Answer:
Its in the west side near New Hampshire border, Northeast of Portland Maine, On the Kennebec River
Explanation:
which of the following factors was a unifying element for republicans?
The unifying element for Republicans is the belief in a federal government and the Constitution as a means of enforcing that government. The Republican Party is one of the two largest political parties in the United States.
They believe in a stronger federal government and the Constitution as a means of implementing that government.The following factors was a unifying element for Republicans:They believe that individuals and local governments should be empowered, but that national government should remain strong. They believe in a market-oriented economy that allows businesses to compete freely while promoting innovation, personal accountability, and fiscal responsibility.
They also advocate for strong national defense, fair and equitable foreign policy, and a commitment to the principles of liberty, justice, and democracy. Additionally, they believe that traditional American values, such as hard work, self-reliance, and family values, are essential to a successful society.
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Metamorphism can transform a shale composed of clay (Diagram A) into a metamorphic rock containing many different minerals (Diagram B). The metamorphism of a pure quartz sandstone, however, yields a metamorphic rock containing only quartz. Why? Choose one: A. Quartz in a shale is different than quartz in a sandstone, so it will behave differently under metamorphic conditions. B. The sandstone is made up only of quartz (silicon and oxygen), and there are no other combinations these elements can be arranged into except polymorphs. C. Quartz is a very resistant mineral and does not undergo any metamorphic processes when subjected to intense heat and pressure.
Metamorphism can transform a shale composed of clay (Diagram A) into a metamorphic rock containing many different minerals (Diagram B). The metamorphism of a pure quartz sandstone, however, yields a metamorphic rock containing only quartz because Quartz is a very resistant mineral and does not undergo any metamorphic processes when subjected to intense heat and pressure. The correct option is c.
The process of metamorphism involves changing the protolith, an existing rock, into a new rock with a different mineral composition or texture. The rock remains essentially solid throughout the metamorphism process, which happens at temperatures above 150 °C (300 °F), as well as frequently at high pressures or in the presence of chemically active fluids. Weathering and diagenesis, which are changes that occur at or near the Earth's surface, are not the same as metamorphism.
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How does a change in the solar constant impact the absorption of shortwave radiation and the emission of longwave radiation by the earth-atmosphere system?.
The change in the solar constant impact the absorption of shortwave radiation and the emission of longwave radiation by the earth
This is trick question, since the solar constant never change.
Solar constant remain fix.
Absorption of incoming incoming and outgoing solar radiation depend upon Complex interplay of atmospheric and meterogical condition.
solar constant is the rate of energy which reaches on the earth's surface. Solar constant on earth is approx 1366 watt per sequare meter
emitted from Earth is referred to as longwave radiation; it falls in the infrared part of the spectrum and has regular wavelengths of 4 to 30 micrometres (0.0002 to 0.001 inch). Wavelengths of radiation emitted by a body depend upon the temperature of the frame, as unique by means of Planck's radiation law.
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as subduction continues over a prolonged period, volcanic arcs, oceanic plateaus, and microcontinents may collide with the overriding plate (for example, the western part of the north american cordillera). this process is called
Accretion is the process when subduction continues over a prolonged period, causing the colliding of volcanic arcs, oceanic plateaus, and microcontinents into the overriding plate.
Accretion in GeologyAccretionary prisms are formed from sediment accreted into tectonic plates that dive below convergent plate boundaries. Most of the material in the accretionary prism consists of marine sediments eroded from subducting parts of the oceanic plate and in some cases also from the erosion products of volcanic island arcs that formed on the overlying plate.
Subduction zones or bending occur when the oceanic plate collides with the continental plate, and slides under the continental plate into the asthenosphere. Subducting plate boundaries form between continental plates and oceanic plates. In the event of this plate collision, the oceanic plate sinks / sinks under the continental plate at an angle of 45 degrees or more.
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Why do we mine ores?
how long is a piece of nylon rope that costs $1.00?
The length of rope depends on many factors like quality, strength and material used. Hence, it can vary accordingly.
Explain in detail.
Bow-to-stern towing hawsers, surge lines, safety lines, lariat ropes, boat falls, drop hammer ropes, target tow ropes, fishing ropes, and industrial slings are all excellent uses for nylon.One of the strongest and most popular fiber materials today is nylon (polyamide), which was the first synthetic material used to manufacture rope. Nylon rope is frequently utilized in dynamic climbing applications due to its high strength, inherent elasticity, and abrasion resistance in dry or wet circumstances.To know more about Nylon here
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is summer or winter better
Answer:
Winter
Explanation:
I chose winter because that's the main part of the year we skip school because of snow or something. And a lot of my sports are in winter! Plus that also means like movie nights and hot chocolate with your family or someone else. Lastly, because that's when we get to peg our siblings in the face with ice and not get in trouble...
¿Como se consideró el gobierno presidencial del general eleazar López Contreras ?
Answer:
Tema equivocado
Explanation:
Vuelva a publicar esta pregunta en la sección de ciencias políticas
fitb. a vertical air pressure gradient is directed from the ______ to the ______.
Fitb: A vertical air is directed from the lower altitudes to the higher altitudes.
As we ascend in the atmosphere, the air pressure gradually decreases due to the decreasing weight of the air column above.
This vertical pressure gradient is a result of the Earth's gravitational force acting on the air molecules. The higher we go in the atmosphere, the lower the air pressure becomes.
This vertical pressure gradient is an essential factor in atmospheric circulation and the formation of weather patterns. It influences the movement of air masses, the development of wind systems, and the distribution of temperature and moisture in the atmosphere.
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why is the demand for resources 'increasing at an increasing rate'
Answer:
A lot of resources that the Earth had in the past have been used.
For example, lumber is becoming more expensive due to more and more restrictions being put into place by governments to avoid deforestation.
Hope that helps
what is the capital of nigeria?
Answer:
Abuja
Explanation:
The capital of Nigeria is Abuja! :) Lagos was the capital of Nigeria until 1991 when it was moved to the city of Abuja.
in addition to glacial ice, what other natural climate recorder is discussed in the smartfigure?
I want to know what the boundaries of continents are.
The boundaries between the continents of Earth are generally a matter of geographical convention. ... The number of continents is most commonly considered seven (in English-speaking countries) but may range as low as four when Afro-Eurasia and the Americas are each considered a single continent.
Explanation:
hope it helped u a lot
What are some aspects of life in North Korea that are different from life in the USA?
North Korea is different because North Korea has a dictator instead of a president, you are not allowed to leave North Korea once you enter. North Korea also controls what you watch, read and see. Hope this helped!!
Answer:
So many ways
Explanation:
1. Very few people have any sort of technology
2. Horrible living conditions
3. Few human rights
3. Still have torture and work camps
4. Money made goes towards the government
What conditions will increase a nation's Human Development Index? Check all that apply. 0 A. Long work hours O B. A commitment to the education of its population C. The highest gross domestic product in the world D. People who live longer than the world average
Hey there! I'm happy to help!
The Human Development Index takes into account 3 main things about a country:
1. Life Expectancy
2. Education
3. Standard of Living
Long work hours don't necessarily have to do with any of these categories and it can also be associated with human rights violations (slavery, sweatshops, etc.), so this will not increase a country's HDI, so A is incorrect.
A commitment to education will definitely increase a nation's HDI. Gaining knowledge is part of human development, and a great education system hugely facilitates that. B is correct.
It might seem like having the highest GDP will make a country have a better standard of living, but this isn't always the case. A country could produce tons of things but pay the workers very little, so this would not lead to a good standard living. Although a high GDP usually means that a country is doing better, it doesn't necessarily increase a nation's HDI, so C is incorrect.
D is correct because living longer means that the life expectancy is higher. This means that better healthcare, services, treatments, medicines, opportunities, etc. are available in the country, and being able to live longer is very important for human development.
Have a wonderful day and keep on learning! :D
Answer: C. a commitment to the education of its population
D. people who live longer than the world average
Explanation:
I took the quiz
Explain the process of how ice can cause both weathering and erosion. Please explain this is easy words.
Answer:
See explanation
Explanation:
Ice is one of the agents of weathering. Weathering refers to the breakdown of rocks.
When water seeps into rocks, the water freezes and changes into ice. The volume of ice is greater than the volume of liquid water because water expands when it freezes. This now exerts pressure on the rock causing the rock to split.
When the lice melts, liquid water carries tiny rock particles away by erosion.
Answer:
Ice is one of the agents of weathering. Weathering refers to the breakdown of rocks.
Explanation:
Describe one way in which a young star is different from a protostar.
Answer:
Both early protostars and young stars are formed from a clod of gas which collapses under gravity to form a star. Both types of star are mainly Hydrogen and some Helium. They would be 75% Hydrogen, 25% Helium with traces of Lithium. Young stars formed out of the remains of old stars would still be mainly Hydrogen. Another way to say it is Both types of star are mainly Hydrogen and some Helium. Early protostars would have been formed from the gasses that were created soon after the big bang. They would be 75% Hydrogen, 25% Helium with traces of Lithium. Young stars formed out of the remains of old stars would still be mainly Hydrogen.
The energy source is one of the distinctions between a young star and a protostar.
What is meant by a star?Stars are the objects found in the universe which composed of helium and hydrogen gases.
A young star was formed from nuclear energy but the protostar doesn't compose any such energy. The stars were created from the conflict between radiation pressure and gravitational force. it takes about thousands of hydrogen atoms combined to form one star.
Therefore, both the stars differ on the basis of energy sources.
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Which type of religion(s) value the belief in the presence of the spirits and forces of nature?
Question 8 options:
Animist
Ethnic
Polytheism
Universalizing
The term "global warming" refers to__________
Answer:
it refers to climate change
Explanation:
Global warming refers to the long-term heating of Earth’s climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere