Arrange the events of the earliest stellar formation in sequential order.
Hydrogen atoms shed their electrons and fuse together to form larger helium atoms.
Pockets of elements in higher concentrations begin experiencing greater gravitational force.
The big bang occurs.
Hydrogen and helium disperse into the universe in uneven concentrations.
The temperature of gas clouds surpasses 14 million Kelvin.
The gas clouds begin reducing in volume, which leads to increases in density, pressure, and temperature.
Answers
The events of the earliest stellar formation in sequential order are as listed below:
"The big bang occurs.""Pockets of elements in higher concentrations begin experiencing greater gravitational force.""Hydrogen atoms shed their electrons and fuse together to form larger helium atoms.""Hydrogen and helium disperse into the universe in uneven concentrations.""The gas clouds begin reducing in volume, which leads to increases in density, pressure, and temperature."The temperature of gas clouds surpasses 14 million Kelvin.What is the stellar formation?The stellar formation can be defined as a process through which dense regions within molecular clouds of gas and dust in interstellar space collapse due to gravity and form stars.
What is a star?A star can be defined as a giant astronomical object that contains a luminous sphere of plasma and two (2) main hot gases (hydrogen and helium), and it is bounded together by its own gravitational force (gravity).
In conclusion, the earliest event of the stellar formation is that the big bang occurs while the final event is an increase in temperature of gas clouds, which generally surpasses 14 million Kelvin (14,000,000 K).
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Related Questions
PLEASE HELPPP!!!!!!
1) Use the following situation and tables to choose the correct answer.
Randomly sampled students from two high schools were asked what color the district should paint the new stadium. The results are presented in the following tables:
Stadium Color - North Valley High
Color: Survey Results:
silver 30
blue 54
teal 36
Stadium Color - South Hills High
Color: Survey Results:
silver 78
blue 24
teal 18
Make an inference comparing which color each of the two high school populations should choose for the stadium, based upon a qualitative comparison of the sampled data.
A.) North Valley High should choose silver to give the minority of the students who selected silver a win in the selection process. South Hills High should choose teal because a minority of their sampled students selected the color teal than other colors.
B.) North Valley High should choose blue because more of the sampled students selected the color blue compared to the other colors in the survey. South Hills High should choose silver because more of the sampled students selected the color silver than other colors.
C.) North Valley High should choose teal because that color was selected between the other two colors and would appeal to a broader base of students. South Hills High should choose blue in order to appeal to a broader base if its students.
Answers
North Valley High should select blue because more of the sampled students picked the color blue compared to the other colors in the survey. South Hills High should select silver because more of the sampled students picked the color silver than other colors.
This is the correct inference based on the given data. The survey results show that blue was the most popular color among the North Valley High students, and silver was the most popular color among the South Hills High students. Therefore, it would make sense for each high school to choose the color that was most popular among their respective student populations.
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Sickle cell anemia is a genetic disease which causes the red blood cells of a person with sickle cell to be malformed, or sickled, making it difficult for them to carry oxygen. This disorder is carried on the X chromosome. What type of inheritance pattern does it follow?
Sex-linked inheritance
Incomplete dominance
Codominance
Multiple allele inheritance
Answers
Show the reciprocal cross: A red-eyed female (homozygous) and a white-eyed male. How many offspring will have white eyes and what is their sex?
Answers
When we see the reciprocal cross between a red-eyed female (homozygous) and a white-eyed male,we observe that none of the offspring will have white eyes. Additionally, the sex of the offspring will be half male and half female since the ratio of males to females is 1:1.
The reciprocal cross for a red-eyed female (homozygous) and a white-eyed male can be shown as follows:Female (XrXr) x Male (XwY). Females have two X chromosomes and males have an X and a Y chromosome. Red eyes are dominant to white eyes; therefore, we use Xr to represent red eyes and Xw to represent white eyes.
The offspring are as follows:All F1 females are heterozygous (XrXw).All F1 males are hemizygous (XrY).The F1 generation will have red eyes since the dominant allele is present.
None of the F1 individuals will have white eyes as the recessive allele is not present in the F1 generation.
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In 1997 a team of scientists discovered three fossilized skulls and other artifacts at a dig site in Ethiopia, Africa. Since it is difficult to determine the age of once living organisms, the scientists used radioactive dating on the igneous rocks that surrounded the remains to determine their age. Why would scientists use radioactive dating in order to determine the age of the fossil they discovered? 1)Radioactive dating gives an estimated age of the igneous rocks, while the law of superposition will only reveal which is younger or older 2)Radioactive dating is an easier and less expensive method than applying the law of superposition for estimating the age of igneous rocks
3)Radioactive dating is specific and gives the exact date that a rock was formed while the law of superposition gives an estimate of ages
4)Radioactive dating determines whether the igneous rocks are older or younger than deeper stratas of rocks, while using the law of superposition depends on tectonic events
Answers
Radioactive dating is specific and gives the exact date that a rock was formed, which is why scientists use it to determine the age of the fossil they discovered. Option 3) "Radioactive dating is specific and gives the exact date that a rock was formed while the law of superposition gives an estimate of ages" is the correct reason.
Evolution is a result of–
a. natural selection.
b. species not adapting quick
enough.
c. competition for resources.
d. harmful mutations.
Answers
Answer:
c
Explanation:
what is biology ? definition of biology
Answers
Answer:
The study of living organisms divided into many specialized fields that cover their morphology physiology anatomy behavior origin and distribution
ion ...
11. How many species went extinct during "the great dying"
cion...
tion ...
12. Under what conditions can a tardigrade survive?
tion ...
13. Do you think that all life is based off of DNA? Explain
14. What compounds on Titan form the equivalent of water on Earth?
15 What type of conditions might life on early Earth have evolved?
Answers
Answer:
11. Something killed 90 percent of the planet's species approximately 250 million years ago, near the end of the Permian epoch. In the seas, just about 5% of animal species survived.
12. water bears, also known as tardigrades, are tough organisms that can withstand high temperatures.
13. DNA is found in every cell of every living creature, practically every cell in a multicellular organism has all of the DNA it needs.
14. Titan features a low-temperature version of Earth's water cycle, with liquid on the surface that evaporates, creates clouds, and then condenses to fall as rain—but the liquid is a mix of methane, ethane, and a trace of other hydrocarbons on Titan.
15. The Earth could not even support life at first. The atmosphere was devoid of oxygen, and the Earth's surface was scorching hot. The Earth gradually transformed over millions of years, allowing plants and animals to begin to grow. The Earth was then further altered by living organisms.
Study the diagram. Two balls are rolling down ramps. What force causes the balls to continue on their paths down the ramp?
Answers
Answer:
gravity
Explanation:
Activation of the parasympathetic branch of the autonomic nervous system:______
a. enhances digestion.
b. causes conversion of glycogen to glucose.
c. triggers release of epinephrine.
d. increases heart rate.
Answers
Answer:
A - enhances digestion
How can intensive agricultural practices contribute to climate change?
Answers
Answer:
Use of more Organic procedures and less Chemicals
anine antoni used which materials in her sculpture lick and lather? multiple select question. chocolate ceramic soap plastic
Answers
Due to the project Lick and Lather Antoni created a mold of her own body, then replicated herself seven times in soap and seven times in chocolate.
Then, by licking the chocolate and washing the soap, she reshaped her appearance. A perfectly proportioned body, according to the ancient Greeks, was seven heads high. Antoni, Janine She frequently performs common tasks for her artwork while using her body—both as an entity and with special attention to certain body parts—as a tool. Examples include using her mouth, hair, eyelashes, and, through technological scans, the brain. Her work straddles the line between sculpture and performance art.
Antoni's main method for creating sculptures has always been her body, which she transforms into ways of creating art by using ordinary actions like eating, bathing, and sleeping.
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Use Newton's Second Law to calculate the mass of an object with a net
force of 19,000 N accelerating at 10 m/s/s.
O 1,900 N
O 1,900 kg
O 190,000 kg
O 1.9 kg
Answers
The slides in the experiment are all set to different heights. This is the ………………….. variable.
Answers
if a neuron receives enough excitatory signals, it reacts by generating an action potential at the beginning of its axon. an action potential will occur only if the excitatory stimulus is strong enough. more specifically, the membrane at the axon hillock must become 15 mv to 20 mv more
Answers
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The activity potential On the off chance that a neuron gets an adequate number of excitatory signs, it responds by producing an activity potential toward the start of its axon.
Neurons (additionally called neurons or nerve cells) are the essential units of the cerebrum and sensory system, the phones answerable for getting tangible contributions from the outside world, for sending engine orders to our muscles, and for changing and transferring the electrical signs at each move toward between.
Neurons are the structural blocks of the sensory system. They get and communicate signs to various pieces of the body. This is completed in both physical and electrical structures.
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How is the overall shape of the DNA molecule described in Watson and Crick's model?
Answers
The shape of the DNA model was described by James Watson and Francis Crick using an X-ray diffraction image obtained by Rosalind Franklin, known as photo 51, and shared with them by Maurice Wilkins without permission.
This picture determined that the DNA was a double helix with antiparallel strands and that the backbone of the DNA was in the outside of the molecule.
This information, along with previous discoverings, such as:
• DNA is made of nucleotides made of sugar, phosphate, and bases (Levene, 1919)
,• DNA has an equal number of purines (A+G) and pyrimidines (C+T), (Chargadd, 1950)
allowed Watson & Crick to make their model, in which they describe the structure of the DNA as a double helix with antiparallel strands, paired via complementary base pairs, with the bases in the inside of the helix.
The semester final for Mr. Garcia's science class required students to design and conduct an investigation that would answer the question "Is
styrofoam a better insulator than plastic?"
Which experiment would be most effective in helping students obtain evidence to use in answering this question?
100 mL of 70 °C water placed in 200 mL plastic cup
O A. 100 mL of 10 °C water placed in 250 mL plastic cup
wait 20 minutes, remeasure temperatures
50 mL of 70 °C water placed in 250 mL styrofoam cup
OB. 100 mL of 70 °C water placed in 250 mL plastic cup
wait 20 minutes, remeasure temperatures
100 mL of 70 °C water placed in 200 mL plastic cup
OC. 100 mL of 70°C water placed in 200 mL styrofoam cup
wait 20 minutes, remeasure temperatures
100 mL of 70°C water placed in 250 mL styrofoam cup
OD. 100 mL of 20 °C water placed in 200 mL styrofoam cup
wait 20 minutes, remeasure temperatures
100 mL of 70 °C water placed in 200 mL plastic cup
O E. 100 mL of 70 °C water placed in 250 mL styrofoam cup
wait 20 minutes, remeasure temperatures
Answers
Answer:
C
Explanation:
The correct answer is C because it puts equivalent measurements in the equivalent cup size. Both cups in answer C are the same measurement: 200 mL. The water in both cups is also the same measurement: 100 mL of 70 degrees Celsius. This is important because equivalent measurements for everything mean the experiment will be fair, equal, and accurate. If the measurements were not equal to each other, your experiment would not be as accurate.
How does exhaling remove waste from the body? Explain the systems that make this happen, using complete sentences.
Answers
Exhaling removes waste from the body by expelling carbon dioxide through the respiratory system.
Exhaling plays a crucial role in removing waste from the body, particularly in the form of carbon dioxide (CO2), a byproduct of cellular respiration. The respiratory system, composed of the lungs and airways, is primarily responsible for this process.During inhalation, air containing oxygen is drawn into the lungs through the nose or mouth. Oxygen then diffuses across the lung tissue into the bloodstream, where it binds to hemoglobin and is transported to cells throughout the body. In the cells, oxygen is utilized in metabolic processes, generating energy and producing CO2 as a waste product.When we exhale, the diaphragm and intercostal muscles relax, causing the volume of the chest cavity to decrease. This action increases the pressure within the lungs, and air rich in CO2 is expelled from the body through the airways. The CO2 is removed from the bloodstream and eliminated from the body, reducing the waste buildup.Overall, the respiratory system's main function is to facilitate the exchange of gases, allowing oxygen to enter the body and carbon dioxide to be eliminated. Exhalation plays a vital role in removing waste by expelling CO2 and maintaining a balanced gas composition within the body.For more questions on respiratory
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6. Explain how energy conservation and efficiency are major “sources” of energy.
9. List energy conservation measures you could adopt in each of the following aspects of your life: washing laundry, lighting, bathing, cooking, buying a car, and driving a car.
11. Which of the following do you think would be best for reducing transportation energy use in the United States: more efficient cars, fuel cell cars, or public transportation? Explain.
Answers
Energy conservation and efficiency are the major “sources” of energy because these methods make available more energy sources and reduce wastage of it.
What is energy efficiency and why is it important?Energy efficiency refers to using less energy to perform a task. In this method, reduce or eliminate energy wastage. Energy efficiency brings many benefits such as reducing greenhouse gas emissions, reducing demand for energy imports, and reducing our costs on a household and economy.
So we can conclude that energy conservation and efficiency are the major “sources” of energy because these methods make available more energy sources and reduce wastage of it.
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some fruits and vegetables reproduce through a process is called?
Answers
Answer:
Fretiliaztion
Explanation:
characteristics of contaminated water
Answers
Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.
Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.
Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.
Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.
Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.
Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.
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a. Compare the time needed to reach the peak amount of antibody production for the first and second encounters.
Answers
Answer:
no entiendo porfa pongan en español por que no entiendo wl ungles jajja
GIVING BRAINLIEST TO FASTEST CORRECT ANSWER (TIMED)
Two communities have a contamination area of 576 square meters and are given methods A, B, and C to clean up
the contamination area. Community 1 is a smaller community and therefore has less resources such as monies
available for the clean-up. Community 2 has more resources but more endangered species of plants and animals in
the contamination area. The longer the contamination is present the more harm there is to the environment including
living things. There are a variety of methods for cleaning up contamination in bodies of water and soil. Look at the
data table below and pick the best method for each community.
1. Using table 1, state which method would be best for community 1 and 2 at 10°C. Justify your answer.
Community 1:
Community 2:
2. Using table 1, state which method would be best for community 1 and 2 at 20°C. Justify your answer.
Community 1:
Community 2:
3. Using table 2, state which method and at what concentration would be best for community 1 and 2. Justify
your answer.
Community 1:
Community 2:
Answers
A. Considering table 1, the following procedure would work the best for communities 1 and 2 at 10°C:
Community 1: Method A because it is significantly less expensive than Method B and removes pollution more quickly than Method C.
Community 2: Method B because it preserves the lives of the local endangered species and removes contaminants more quickly than the other ways.
B. The approach that would work best for communities 1 and 2 at 20°C using table 1 is:
Community 1: Method C since it is less expensive and removes pollution more quickly.
Community 2: Process A since it removes pollution the fastest of the available options.
C. For communities 1 and 2, the technique and concentration that would work best are:
Community 1: Using Method A at 100 ppm is less expensive and less harmful to the environment.
Community 2: Compared to the other techniques, Method B at 200 ppm cleans up the contamination the fastest and with the least amount of environmental harm.
What are the main contaminants in the environment?Polyaromatic hydrocarbons, heavy metals, pesticides, organic solvents, inorganic solvents, and other pollutants are among the most prevalent environmental contaminants. Accidental discharge of these toxins into the environment causes the emergence of new diseases that affect human health as well as population deaths in large numbers.
Radon and biological agents such as molds, certain infectious agents such as bacteria or viruses, and dust mites also contaminate the environment.
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Write a 500-word research report on a pathogenic bacterium that is not discussed in this unit (you may choose one from the table in the pathogenic bacteria section of the Eubacteria lesson). Include the history, the scientific name of the bacterium, vectors, symptoms, etc.
Answers
The pathogenic bacterium Staphylococcus aureus corresponds to a bacterium of the group of gram-positive cocci, and is part of the human microbiota.
Characteristics of the bacteriumStaphylococcus produce toxins which are proteins produced and exposed to the surface of the bacteria that can destroy human cells and can spread through contact with the infected host.
Some symptoms of infection are the production of red nodules, boils and pimples, which are usually infected with the presence of pus, and are treated with antibiotics.
This bacterium can cause several diseases, such as the simplest infections present in boils, as well as serious diseases with high mortality, such as endocarditis, pneumonia, meningitis and septicemia.
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Connecting body systems!
Answers
The Connecting body systems are listed below:
Circulatory system
Respiratory system
Nervous system
Muscular system
Skeletal system
Digestive system
Endocrine (hormones) system
Lymphatic, or immune system system
Reproductive system
Integumentary (skin, hair) system
What is the Nervous system?The nervous system is described as the highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body.
The main function of the nervous system is to help all the parts of the body to communicate with each other.
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How is cell theory related to mitosis and meiosis?
Answers
Answer:
Cell theory states that all living organisms are made up of cells, and that cells are the basic unit of life. Mitosis and meiosis are both processes of cell division, which are essential for the production of new cells. Mitosis is the process of a single parent cell dividing into two identical daughter cells, while meiosis is the process of two parent cells dividing into four daughter cells with half the number of chromosomes as the parent cells. Therefore, cell theory is related to mitosis and meiosis because both processes are necessary for the production of new cells, which is a fundamental part of the cell theory.
Explanation:
HELP ASAP HURRRRRRRYYYY
Answers
PLS HELPPPP Sylvia is writing a cause and effect report on ocean currents. Which statement can she use correctly in her report? A. Global winds pull surface ocean water into the major ocean currents observed today. B. Global winds cause surface ocean currents to extend deeper beneath the surface of the water. C. Surface ocean currents form as a result of changes in Earth's climate over time. D. Surface ocean currents are only present along coastlines of continents.
Answers
Sylvia can use statement A correctly in her report: "Global winds pull surface ocean water into the major ocean currents observed today."
This statement accurately describes one of the primary causes of ocean currents - the force of global winds on the surface of the ocean, which creates areas of high and low pressure and drives the movement of water.
Statement B is incorrect because global winds do not cause surface ocean currents to extend deeper beneath the surface of the water; rather, ocean currents are typically driven by the wind and waves on the surface layer of the ocean.
Statement C is also incorrect because while changes in Earth's climate can have an impact on ocean currents over long periods of time, they are not the primary cause of surface ocean currents.
Statement D is incorrect because ocean currents can exist in all parts of the ocean, not just along coastlines.
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Identify from which region of the vertebral column each vertebrae belongs to. What are the differences between the size of the body, vertebral foramen, and spinous processes?
Answers
Within the various regions of the spine, the vertebrae vary in size and shape, but they all follow similar structural patterns.
What is spine?Your spine, or backbone, is the central supporting structure of your body. It connects different parts of the musculoskeletal system. The spine helps us sit, stand, walk, twist and bend. Back injuries, spinal cord disorders, and other problems can damage the spine and cause back pain. The spine is the central supporting structure of our body. The spine is a chain of bones, but it is made flexible by elastic ligaments and intervertebral discs. The vertebrae are generally numbered and divided into different regions. Neck, chest, lumbar, sacrum, coccyx. Only the top 24 bones are movable.To learn more about spine from the given link :
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Picture 1 is a part of cervical vertebrae and picture 2 is a part of thoracic vertebrae.
What is cervical and thoracic vertebrae?
The C1–C7 vertebrae, which make up the cervical spine (neck area), are connected to one another by intervertebral discs. These discs provide the spine with mobility and serve as shock absorbers when people are moving around.There are 12 vertebrae in the thoracic area, identified as T1–T12. Spinal nerves emerge through a space created by the intervertebral discs, laminae, pedicles, and articular processes of neighboring vertebrae. Combined, the thoracic vertebrae form a kyphotic curvature.Difference between size of the body, vertebral foramen and spinous processes:
Regardless of body size, nearly all mammals have seven cervical vertebrae. This indicates that there are significant differences in the size of cervical vertebrae, ranging from the shrew's relatively short cervical vertebrae to the giraffe's neck's much lengthened vertebrae. Each cervical vertebra in a fully mature giraffe measures 11 inches in height.The spinal cord and its meninges are located in the vertebral foramen. The spinal cord is located in this spacious passageway that runs up and down inside each vertebra; it is commonly referred to as the spinal canal rather than the vertebral foramen.The lumbar spinous processes (LSP) provide a crucial anatomical and biomechanical purpose by anchoring the interspinous and supraspinous ligaments, as well as the intersegmental paraspinal muscles and safeguarding the neuronal structures in the spinal canal.Hence one is cervical vertebrae and the other is thoracic vertebrae.
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An increase in temperature usually slows down a chemical reaction.
This statement is ______________ because_______________________________________
Answers
Because the molecules of the chemical reactions move slowly as they gain small amount of kinetic energy which makes them collide less against the walls of the container & sluggish.
utiliza el calor producido por un reactor nuclear
Answers
Answer:
Boil water into steam
Explanation:
As the turbine blades turn, they drive generators that make electricity. Nuclear plants cool the steam back into the water in a separate structure at the power plant called a cooling tower, or they use water from ponds, rivers, or the ocean. The cooled water is then reused to produce steam.