From studying seismic waves, scientists have determined that the, what is liquid iron and nickel
Answers
The liquid iron and nickel are believed to make up the Earth's outer core, based on studies of seismic waves. Seismic waves are vibrations that travel through the Earth's interior, and scientists use them to infer information about the structure and composition of the planet.
Seismic waves come in two main types: P-waves (primary waves) and S-waves (secondary waves).
P-waves can travel through solids, liquids, and gases, while S-waves can only travel through solids. By measuring the speed and direction of these waves as they pass through the Earth, scientists can create a picture of the planet's interior.
One key observation that scientists have made is that S-waves are not detected in certain areas of the Earth's interior, specifically in the outer core. This suggests that the outer core is made up of a liquid material that does not allow S-waves to pass through it.
Based on the Earth's overall composition and the behavior of seismic waves, scientists believe that this liquid material is primarily made up of iron and nickel.
Liquid iron and nickel are believed to make up the Earth's outer core based on observations of seismic waves. These waves provide valuable information about the Earth's composition and structure, and help scientists better understand our planet's history and evolution.
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Related Questions
What conditions may occur when a population is in exponential growth
Answers
Answer:
some of the organisms may nit have enough food to survive bc theres not enough to go around
Explanation:
In the Novel: The Immortal Life of Henrietta Lacks in the Week 5 Learning Activities. Christoph Lengauer makes an analogy stating that cells should be treated with the same value as oil. He states, "Why not treat valuable cells like oil? When you find oil on somebody's property, it doesn't automatically belong to them, but they do get a portion of the profits." This excerpt from the novel raises some ethical issues to be examined.
What contemporary ethics and laws in health care practice do Lengauer’s views go against?
Answers
Obtaining human cells for research or commercial purposes without the informed consent of the individual
What is the ethics?Patient autonomy is the term used to describe a person's ability to make choices regarding their own body and medical care. By suggesting that individuals should not have complete control over their cells and should not be the exclusive recipients of any revenues generated from them, Lengauer's analogy undercuts patient autonomy.
The ownership of human tissue is a topic of continuing discussion and is governed by several legal systems. Individuals typically have legal rights over their own cells and tissues. In Lengauer's comparison, the ownership rights of individuals over their cells appear to be disregarded.
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What body systems work together keep you from burning your hand on a hot stove?
Answers
Answer:
The central nervous system and the peripheral nervous system.
Explanation:
The central nervous system is made up of the spinal cord and the brain, while the peripheral nervous system is everything else, right down to the pain sensors in your big toe. These two systems work together to basically control everything you do.
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all of the following are components of the inflammatory process except all of the following are components of the inflammatory process except chemotaxis. diapedesis. antibody synthesis. release of histamines and prostaglandins. dilation of blood vessels.
Answers
According to the research, the correct answer is antibody synthesis. All of the following are components of the inflammatory process except antibody synthesis.
What is the inflammatory process?It is a reaction that can be caused by a short-term infection and is characterized by the proliferation of blood vessels, release of chemicals such as histamine and tissue necrosis.
In this sense, it is closely related to the repair process to initiate a series of events that can determine the healing of the injured tissue as transmigration through the endothelium (diapedesis) and leukocytes reach the area of injury, through chemotaxis.
Therefore, we can conclude that the inflammatory process triggers a series of chemical and cellular reactions in the damaged area that does not include antibody synthesis.
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Why don’t most other types of bacteria produce ulcers?
Answers
Putting your money in separate envelopes for each category of your budget is NOT a wise budget method. A. True B. False
Answers
Answer:
False
Explanation:
It's good method so you don't use your important money or use all of your money .
Answer:
false
Explanation:
just because
why do we "flame" inoculating loops and needles? do you want to hear a sizzling sound when you place your loop or needle on the bacteria to be harvested? if you do hear that sound, what does it mean?
Answers
We flame inoculating loops and needles to sterilize them before use. This is important because bacteria and other microorganisms can contaminate the sample and give inaccurate results if not properly sterilized. The flame also helps to remove any residual bacteria or debris from the previous use of the instrument.
Hearing a sizzling sound when placing the loop or needle on the bacteria to be harvested is a good sign that the instrument is hot enough and ready for use. The sound is caused by the heat of the instrument instantly vaporizing any liquid that may be on the surface of the bacteria. It is important to let the instrument cool down for a few seconds before touching the bacteria to prevent any damage or killing of the bacteria.
Overall, flaming inoculating loops and needles is a simple and effective way to ensure accurate and reliable results in microbiological testing.
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Hunter syndrome is a rare genetic disorder in which large sugar molecules called glycosaminoglycans build up in body tissues. Hunter syndrome causes abnormalities in many organs, including the skeleton, heart, and respiratory system. In severe cases, this leads to death during the teenage years. Hunter syndrome is caused by a recessive gene on the X chromosome. If a woman who is normal (but had a father with the disease) marries a normal man, what are the chances of having a daughter affected by the disease
Answers
Answer:
Hunter syndrome is a very rare, inherited genetic disorder caused by a missing or malfunctioning enzyme. In Hunter syndrome, the body doesn't have enough of the enzyme iduronate 2-sulfatase.
Identify which questions can be answered through science and which cannot. Should humans use biotechnology to bring extinct organisms from the fossil record back to life? Is it right or wrong to use genetic engineering to produce new food products? If a new gene is added to the genome of a tomato species, will that species be more resistant to insects? What are the most common social settings that tend to produce accomplished artists? Are Michelangelo's paintings more impressive than Rembrandt's? Do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world?
Answers
Let's number the questions to understand the question easily:
1. Should humans use biotechnology to bring extinct organisms from the fossil record back to life?
2. Is it right or wrong to use genetic engineering to produce new food products?
3. If a new gene is added to the genome of a tomato species, will that species be more resistant to insects?
4. What are the most common social settings that tend to produce accomplished artists?
5. Are Michelangelo's paintings more impressive than Rembrandt's?
6. Do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world?
Answer:
Science is defined as the study of the natural and social on the basis of evidence.
Questions are an important part of science that reveals several new findings of the natural world. Scientific questions are answered on the basis of true observations and investigation using several scientific tools and help people to believe the new finding.
The questions that can be answered through science are "1,2,3 and 6".
Questions that can not be answered through science are based on morals, values, and individual intelligence include question number "4 and 5".
Hence, question number "1,2,3, and 6" can be answered through science while question number "4 and 5" can not be answered through science.
At a divergent boundary of TWO OCEANIC plates, what landform is
made?
O trench
valley
O mountain
O earthquake
O volcano
Answers
Answer:
Trench and mountain
Explanation:
Case 6: A woman is found dead in a stream at the bottom of a ravine. The cause of death is determined to be a fall from a nearby cliff. Mechanism of death is exsanguination (there was virtually no blood left in her body). What is the approximate time of death if the body temperature was 29.4°C (84.9°F)?
Answers
Based on the information provided in your question, if the body temperature of the deceased woman is 29.4°C (84.9°F), and assuming a postmortem cooling rate of 1.5 to 2 degrees Fahrenheit per hour, it is estimated that the time of death would be approximately 12 to 18 hours prior to the body temperature measurement. It's important to note that this estimate is based on general guidelines and may not be entirely accurate, as multiple factors can affect the rate of postmortem cooling in individual cases. Therefore, a proper determination of the time of death in a forensic investigation would require a comprehensive analysis of various factors, including body temperature, in conjunction with other evidence and forensic techniques.
If it wasn't for the Sun and the ___ cycle, our current atmosphere might not exist, and weather on Earth would be minimal.
A. Water
B. Carbon
C. Oxygen
D. Nitrogen
Please give an explanation
Answers
Answer:
B. Carbon cycle
Explanation:
The operation of the carbon cycle is one of the most important in this regard as it ultimately controls levels of oxygen and carbon dioxide in the atmosphere. The carbon cycle is responsive to changes in climate and oceanography and is coupled to nutrients cycles.
Which of the following plant pigments would absorb light at 440 nm? Check all that apply.chlorophyll abeta carotene
Answers
The energy from wavelengths of 440 nm is heavily absorbed by chlorophyll b. B. Green helps with light absorption during photosynthesis.
Which 4 different plant pigments are there?Chlorophylls, anthocyanins, carotenoids, and betalains are the four major divisions of plant pigments. The majority of plant colors that are derived naturally come from them.
Carotene absorbs light, right?Carotenoids are pigments that are both common and necessary for photosynthesis. The wavelength range of light that can drive photosynthesis is increased by their absorption in the blue-green area of the solar spectrum and transmission of the absorbed energy to (bacterio-)chlorophylls.
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A mushroom would produce a sexual spore known as a(n):
A. mycelium.
B. conidium.
C. ascospore.
D. basidiospore.
E. hypha.
Answers
A mushroom would produce a sexual spore known as a D. basidiospore. A mushroom is a fruiting body of certain fungi, and it produces a specialized sexual spore called a basidiospore.
A basidiospore is a type of sexual spore produced by certain fungi, specifically those belonging to the phylum Basidiomycota. Basidiospores are formed on specialized structures called basidia, which are typically found on the gills or pores of a mushroom. These spores are important for the dispersal and propagation of the fungus. When the basidiospores are released from the basidia, they can be carried by air or other means to new locations where they have the potential to germinate and establish new fungal colonies. Basidiospores are characteristic of mushrooms and are a significant part of their reproductive process.They are usually produced in large numbers and can be released into the air or carried by other means to new environments.
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Use the scenario to answer the question.
You observe the growth of a group of plants that have been tipped over.
How will auxin influence cell growth in the roots of these plants?
Auxin will build up on the lower side of the root and inhibit cell growth.
Auxin will build up on the lower side of the root and stimulate cell growth.
Auxin will build up on the upper side of the root and inhibit cell growth.
Auxin will build up on the upper side of the root and stimulate cell growth.
Answers
Auxin is responsible for the growth of cells in the roots of plants. Auxin build up on the lower side of the root which inhibit the cell growth. Auxins have an inhibitory effect on primary root growth. Thus, the correct option is A.
What is Auxin?Auxin is a plant growth hormone, which promotes cell growth and elongation of the plant. In cell elongation, auxin alters the plant wall plasticity making it easier for the plant to grow upwards. Auxin also influences the rooting in the plant.
Auxins have an impact on the growth of roots. Auxins facilitate the initiation of roots in plants. These hormones induce both growth of root branching (root initiation) and roots that are pre-existing. They also play important role in the formation of the adventitious root.
Therefore, the correct option is A.
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Plz help! Its due in like 10 mins!!
HELP
Answers
Answer:
c.
Explanation:
It is showing the size of Earth's layers. There is nothing here about its chemical composition or Earth's temperature.
A population of 40 killer whales lives in a bay that measures 2000 square miles. What is the population density of killer whales?
Answers
Answer:
.02
Explanation:
When finding population density, divide the amount of people, animals or things in the region by the total square miles. 40/2000 is .02.
A population is the size of the group of individuals residing at a place. A population of 40 killer whales has a population density of 0.02.
What is population density?Population density is the individual's concentration of a specific species at a particular geographical location. It allows the establishment of the ecosystem and health.
Given,
Number of individulas = 40
Size of the area = 2000
Density = Number of individuals ÷ Size of the area
= 40 ÷ 2000
= 0.02
Therefore, 0.02 is the population density of killer whales.
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View the illustration below and answer the questions.
Which organism is found in the oldest rock layer?
Which organism is found in the youngest rock layer?
The Gastropod is found in multiple rock layers. What does this indicate?
Which organism is the oldest- the Crinoid or the Ammonite? How do you know?
Answers
Answer:
ferm i got it right
give me brainlist please
Explanation:
What vitamins should not be taken with B vitamins?
Answers
vitamin C should not be taken with B vitamins because it reduce the absorption of B vitamins and also reduce the metabolism of body.
Vitamin B-12 may not be as readily available in your body if you combine it with vitamin C. A vitamin C supplement should be taken two or more hours after a vitamin B-12 dose to prevent this interaction. B vitamins typically do not adversely affect the effects of other drugs. A vitamin B shortage, however, may increase the risk of certain drugs. Examples of drugs that may cause low levels of particular B vitamins include the following: B1 levels can be decreased by blood pressure medications and chemotherapy medicines. It is safe to take vitamin D and the B complex together, either as supplements or in food.
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The equation shows cellular respiration. During cellular respiration, glucose combines with oxygen to form carbon dioxide, water, and ATP.
Answers
Answer:
The correct answer is "The energy is transferred to ATP".
Explanation:
The missing information of this question is:
C6H1206 + 602 / 6CO2 + 6H2O + ATP
What happens to the energy in the bonds in glucose?
The energy is transferred to oxygen.
The energy is transferred to carbon dioxide.
The energy is transferred to water.
The energy is transferred to ATP.
The correct answer is "The energy is transferred to ATP".
During cellular respiration, the cell produces energy from the oxidation of glucose and it stores it in the form of adenosine triphosphate (ATP). The terminal phosphate group of ATP is highly energetic, and the cells breaks down ATP to use its energy in diverse chemical reactions. For this reason ATP is known as the "energy currency" or "coin of the cell".
dentinogenesis imperfecta is a rare, autosomal, dominantly inherited disease of the teeth that occurs in about one in 8000 people. the teeth are somewhat brown in color, and the crowns wear down rapidly. assume that a male with dentinogenesis imperfecta and no family history of the disease marries a woman with normal teeth. what is the probability that their first child will have dentinogenesis imperfecta?
Answers
Dentinogenesis imperfecta is a rare, autosomal dominant inherited disease that affects about one in 8,000 people. It causes brownish teeth and rapid crown wear.
In this scenario, a male with dentinogenesis imperfecta and no family history of the disease marries a woman with normal teeth. The probability that their first child will have dentinogenesis imperfecta can be determined using the following steps:
Identify the genotypes of the parents. Since dentinogenesis imperfecta is an autosomal dominant condition, we can denote the disease-causing allele as "D" and the normal allele as "d". The male with dentinogenesis imperfecta would have a genotype of "Dd", as he has the disease but no family history, indicating he is heterozygous. The woman with normal teeth would have a genotype of "dd", as she does not carry the disease-causing allele.
Determine the possible genotypes of their offspring using a Punnett square.
```
D d
d Dd dd
d Dd dd
```
Step 3: Calculate the probability that their first child will have dentinogenesis imperfecta. Based on the Punnett square, there are two "Dd" genotypes out of four possible genotypes. This means the probability of their first child having dentinogenesis imperfecta is 2/4 or 50%.
In conclusion, the probability that their first child will have dentinogenesis imperfecta is 50%.
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What steps did the government take to contain the spread of cocoliztli?
Answers
The government originally used emergency pandemic response money for urgent medical requirements, the special wards to increase hospitalization and care capacity, and of vital medical supplies.
Briefing:In 1576, there was an outbreak that followed a drought that stretched from Venezuela to Canada. The association between the drought and outbreak, according to proponents of the viral theory of Cocoliztli, may be explained by a rise in the population of vesper mice, which are carriers of viral haemorrhagic fever, during the rains that followed the drought.
What was the cause of the Cocoliztli epidemic?The cocoliztli epidemics in 1545 and 1576 seem to have been hemorrhagic fevers exacerbated by peculiar climatic conditions and brought on by a local viral pathogen. The 20th century saw the Mexican population reach pre-Hispanic levels.
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Why is evoultion considered a theory
Answers
Answer:
A scientific theory is a well-substantiated explanation of such facts. The facts of evolution come from observational evidence of current processes, from imperfections in organisms recording historical common descent, and from transitions in the fossil record. Theories of evolution provide a provisional explanation for these facts
Explanation:
a combination of similar cells that work together to perform a specific function is known as which of the following?
Question 5 options:
organs
DNA
cells
tissue
Answers
Answer:
The answer is TISSUES.
Explanation:
Tissues are groups of cells that all perform a common function. An organ is not the answer because tissues make up organs and multiple organs make an organ system.
I have attached a helpful diagram that uses the example of a singular muscle cell and builds up to a whole organ system.
Please let me know if you need anymore help!
The anatomy and physiology instructor is discussing the action of endogenous estrogen on the body. what effect would the instructor tell the students estrogen has on breast tissue in the body?
Answers
The instructor would tell the students that endogenous estrogen has a significant effect on breast tissue in the body. Estrogen promotes the growth and development of breast tissue during puberty. It stimulates the proliferation of cells in the ducts and lobules of the breasts, leading to an increase in breast size and formation of milk-producing glands.
Here's a step-by-step explanation of the effects of estrogen on breast tissue:
1. During puberty, the ovaries start producing estrogen, which is responsible for the development of secondary sexual characteristics, including breast development.
2. Estrogen acts on the breast tissue by binding to estrogen receptors located in the cells of the ducts and lobules.
3. This binding stimulates cell division and growth in the breast tissue.
4. The ducts, which carry milk from the lobules to the nipple, increase in size and number under the influence of estrogen.
5. The lobules, which are responsible for milk production, also undergo development and enlargement.
6. Estrogen also promotes the deposition of fatty tissue in the breasts, which contributes to breast enlargement.
7. The overall effect of estrogen on breast tissue is an increase in size, shape, and structural development.
It's important to note that estrogen plays a crucial role in maintaining breast health throughout a woman's life. However, prolonged exposure to high levels of estrogen or hormonal imbalances can increase the risk of breast conditions such as fibrocystic changes or breast cancer. It's always best to consult a healthcare professional for a comprehensive understanding of the effects of estrogen on breast tissue.
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Edwin Chargaff was a 20th century biochemist who investigated the structure of DNA. Chargaff looked at the ratios of the four bases in the DNA. State the type of bond that joins the bases together in a DNA molecule
Answers
Answer:
Hydrogen Bond
Explanation:
The hydrogen bond joins bases together in a DNA molecules. Which is the bond between two strands on a DNA molecule. Although the hydrogen bond is weak, collectively in the DNA molecule, it is a strong bond which binds the molecule together.
What is one cause of long-lasting climate change?
A. Volcanic activity
B. Earth’s elliptical orbit
C. Earth’s rotation
D. The Sun’s elliptical orbit
Answers
You can approach this question in two ways:
One:
when volcanos erupt (called volcanic activity), they will expel enormous amounts of soot, rock, smoke, and other materials into the air. This material, if light enough, floats around in the atmosphere and can block the sun. The CO2 and other greenhouse gases produced can also contribute to global warming
Two:
Notice how volcanic activity is something that happens randomly and ‘rarely’. However, answers B, C, and D happen all the time. Earth is always spinning, it’s also always rotating around the sun. The sun also never stops moving: its main motion is from revolving around the Milky Way. Thus, it makes sense to choose the one random, rare event. This is because we only see long-lasting climate change occasionally, and thus it can’t be something ordinary like earths rotation.
Answer:
b
Explanation:
what is the name of reproduction part in femal
Answers
A scientist is investigating the effect of a pesticide on the
ability of certain types of weeds to produce seeds. The
scientist plans to conduct a test to find out whether the
amount of pesticide will affect whether a weed makes
seeds.
Which type of scientific investigation does this plan describe?
A. Experimental investigation
B. Theoretical investigation
C. Descriptive investigation
D. Comparative investigation
Answers
The type of scientific investigation of a plan based on conducting a test to find out whether the amount of pesticide will affect whether a weed makes seeds is A. Experimental investigation.
What is an experimental investigation procedure?An experimental investigation procedure refers to formulating a given test in controlled conditions in order to determine if our working hypothesis can be confirmed or needs to be rejected, which is a fundamental step of the scientific method.
Therefore, with this data, we can see that an experimental investigation procedure allows us to confirm or reject the hypothesis.
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Dna can be cut into specific nucleotide sequences by:.
Answers
Answer:
Restriction enzymes
Restriction enzymes, also called restriction endonucleases, recognized a specific sequence of nucleotides in double stranded DNA and cut the DNA at specific location.