Researchers at the Rush Institute for Healthy Aging in Chicago surveyed a group of 800 men and women ages 65 to 94 to determine how often they ate fish. Five years later, they checked to see whether participants had developed Alzheimer's disease. The result: Those who ate at least one fish meal per week were significantly less likely to end up with Alzheimer's disease than those who never -or hardly ever-ate fish. What can you conclude from this study? People who eat more fish may have a lower risk of Alzheimer's, but we don't know if that is because of the fish or some other factor. Quit eating fish, as it may be harmful! Including more fish in your diet may increase your risk of developing Alzheimer's disease. Eating more fish has demonstrated effectiveness to prevent Alzheimer's disease.
Answers
The study conducted by the Rush Institute for Healthy Aging in Chicago suggests that people who eat at least one fish meal per week may have a lower risk of developing Alzheimer's disease compared to those who never or rarely ate fish.
However, this study only shows a correlation between fish consumption and a reduced risk of Alzheimer's and does not establish a cause-and-effect relationship. It is important to note that this study has limitations, such as a possible self-selection bias in which participants who were already experiencing symptoms of cognitive decline may have been less likely to report eating fish.
Therefore, additional research is needed to confirm these findings and to determine the exact mechanism through which fish consumption may reduce the risk of Alzheimer's disease.
This study provides preliminary evidence that fish consumption may be associated with a reduced risk of Alzheimer's, but it is not enough to conclusively say that eating more fish will prevent Alzheimer's disease.
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Related Questions
which biomes likely has the thinnest layer of topsoil?
Answers
Answer:
the desert
Explanation:
describe clinical features of meningitis
Answers
Fever, neck pain/stiffness, and photophobia are common symptoms. Headache, dizziness, disorientation, and delirium are meningitis that can manifest differently depending on the host's age.
Are stiff neck and headache common meningitis symptoms?The infection and inflammation of the fluid and membranes around the brain and spinal cord are known as meningitis. These membranes are known as meninges. Meningitis inflammation often causes symptoms such as headache, fever, and stiff neck.
Is a test for meningitis available?Hospital tests, A physical examination to seek for signs of meningitis. A blood test to detect germs or viruses. A lumbar puncture is a procedure in which a sample of fluid from the spine is removed and tested for germs or viruses. a CT scan to look for any brain issues, such as oedema.
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The temperature in Delhi falls to even 5°C in winter and may go up to 45°C
during summer but our body temperature remains at 37°C. How do we make it
possible?
Answers
The way we make it possible is that The human body is able to maintain a constant internal temperature, known as homeostasis, through a number of physiological mechanisms. One of the main ways the body regulates its temperature is through the process of thermoregulation.
What is body temperature about?The hypothalamus, a small region in the brain, acts as the body's thermostat. It continually monitors the body's temperature and sends signals to other parts of the body to make adjustments as needed.
When the body is too warm, the hypothalamus sends signals to the sweat glands to release sweat, which cools the body as it evaporates. It also sends signals to the blood vessels in the skin to dilate, allowing more blood to flow near the surface of the skin, which also helps to dissipate heat.
Thus, When the body is too cold, the hypothalamus sends signals to the muscles to contract, generating heat through the process of muscle metabolism. It also sends signals to the blood vessels in the skin to constrict, reducing blood flow near the surface of the skin and conserving heat.
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name five areas of the mammalian skin in which sweat glands and hairs are absent
Answers
Answer:
panda deer
Explanation:
because they have sweat glandx and hair absorbent
How has climate varied over time
Answers
The brain and spinal cord are part of the _______ nervous system. The electrical charges that act as nervous signals are called _______. Jellyfish do not have a brain. Instead their nervous system is called a _______. After nervous systems began to develop in bilaterally symmetric animals, some developed ventral, or front, nerve cords, while chordates developed _______ nerve cords. Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called _______ skeletons. _______ do not grow with arthropods, and so occasionally must be shed and regrown from chitin. Muscles move endo- and exoskeletons by _______. _______ is the joining of two gametes called sperm and egg. A fish that lays her eggs in a cluster is initiating _______ fertilization. _______ are an adaptation by reptiles to allow for reproduction and embryo development on land. Describe three different strategies used by three different animals to thermoregulate. If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
Answers
The brain and spinal cord are part of the central nervous system.
The electrical charges that act as nervous signals are called action potentials or nerve impulses.
Jellyfish do not have a brain. Instead, their nervous system is called a nerve net.
After nervous systems began to develop in bilaterally symmetric animals, some developed ventral nerve cords, while chordates developed dorsal nerve cords.
Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called hydrostatic skeletons.
Exoskeletons do not grow with arthropods, and so occasionally must be shed and regrown from chitin.
Muscles move endo- and exoskeletons by contracting and relaxing.
Fertilization is the joining of two gametes called sperm and egg.
A fish that lays her eggs in a cluster is initiating cluster or mass fertilization.
Amniotic eggs are an adaptation by reptiles to allow for reproduction and embryo development on land.
Describe three different strategies used by three different animals to thermoregulate.
Elephants: Elephants thermoregulate by using their large ears as cooling devices. They flap their ears to increase surface area and enhance heat loss through evaporative cooling.Desert Lizards: Desert lizards employ behavioral thermoregulation by basking in the sun to absorb heat and warming their bodies. They also retreat to shade or burrows to avoid excessive heat when needed.Penguins: Penguins have a unique thermoregulation strategy. They huddle together in large groups to conserve body heat and shield themselves from the cold Antarctic winds, effectively reducing heat loss and maintaining body temperature.If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
If you see a snake coiled up in a sunny patch of grass, you can probably conclude that the snake is an ectotherm. Ectotherms rely on external heat sources, such as the sun, to regulate their body temperature. By basking in the sun, the snake absorbs heat, which helps raise its body temperature to a suitable level for proper physiological functioning.
Answer:
1. central
2. action potential
3. nerve net
4. dorsal
5. hydrostatic
6. Exoskeletons
7. contraction/contracting
8. Fertilization
9. external fertilization
10. Eggs
11. Animals with fur thermoregulate by panting. Winged birds will flap against their mouths/heads to dissipate heat. Humans will produce sweat to evaporatively cool. Polar bears have developed blubber. Bears drop body temperatures during hibernation.
12. Seeing a snake using the warmth of the sun leads us to conclude that it is likely a thermo conformer that cannot produce its own body heat.
Which has a greater solubility? 0.5mm 1.0cm 0.5cm 0.1mm
Answers
Answer:
1 cm
Explanation:
1 cm is the answer...
Which organ is found in the digestive system?
heart
lungs
stomach
kidneys
Answers
Answer:
Stomach
Explanation:
Answer:
stomach. :)
Explanation:
trust me this is the right anwser the one up is right and i also toke the quiz. :)
BRAINLIEST GUARANTEE!!!
Which phase of cell division is shown?
A) prophase I of meiosis
B) telophase II
C) anaphase II
D) telophase I
Answers
Answer:D
Explanation: Hope it helps
*PLEASE HELP!!! I’ve never needed help this badly before!*
designing a device to protect an egg on impact student guide
materials
four sheets of eight and a half by 11 inch paper
1 m of masking tape
One receivable plastic bag size for an egg
1 m of string
three straws
white school glue
for this assignment your teacher will give you an egg and some building materials. You will use these materials to build a device that will keep an egg from cracking when it is dropped from a certain height. Then you will test the device determine how well it worked and make recommendations to improve its design. You will present your final design and logic that supports it in a lab report. Your lab report must include the title and initial design, observations from your experimental tests and recommendations for a final design based on force and momentum concept. as well as observations from the test conducted. To help you write your lab report there is a student worksheet on the last few pages of this document.
egg drop student worksheet
use this worksheet to design your device and record your data. You can use this form to help you write your lab report.
height of egg drop
ideas for prototype
design preliminary sketches (attach separate paper if needed)
option A
advantages and disadvantages
option b
advantages and disadvantages
option c
advantages and disadvantages
which of these three designs will move forward with? explain your reasoning for selecting this design.
building the prototype
what modifications, if any, did you make to the design during the construction process?
predictions
Will your device cushion the egg?
how are your device do this?
will your device increase the time it takes for the egg to impact the ground? how your device do this?
observations
record your observations in the results of the experimental test of your device below.
evaluating your prototype
what worked well?
which features can be improved upon?
suggestions
how could the design of this device be improved?
why would this change be an improvement?
What force and momentum principle in this movement is based on?
Sketch a final design
draw a well labeled sketch of the final design.
If you need any pictures, please let me know as I can’t post them all here!
Answers
We can see here that in order to design a device, here is a guide:
Step 1: Understanding the requirements
Step 2: Brainstorming and sketching
What is a device?A device refers to a physical or mechanical tool, instrument, or apparatus designed to perform a specific function or task. It is typically created with the purpose of achieving a particular objective or solving a problem.
Continuation of the steps:
Step 3: Selecting a design
Step 4: Building the prototype
Step 5: Making predictions
Step 6: Conducting experimental tests
Step 7: Evaluating the prototype
Step 8: Providing suggestions
Step 9: Understanding force and momentum principles
Step 10: Sketching the final design
Devices can vary in complexity and size, ranging from simple handheld tools to complex machinery.
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Psychology is the scientifc study of
Answers
Answer:
Psychology is the scientific study of the mind and behavior
Explanation:
Answer:
It is the scientific study of the mind and behavior
Explanation:
Sand, silt, and clay are all made from weathered _ _ _ _ _ _ .
Answers
Answer:
Rocks
Explanation:
Sand, silt, and clay are all made from weathered rocks
what are the different types of evidence you can analyze using a spectroscope, a stereoscope, and a microscope
Answers
i hope it helps
Summarize what happens during the Calvin cycle of photosynthesis. Include where it occurs, how energy changes during these reactions, what happens to the reactant and product molecules, and how ATP and NADPH are involved.
Answers
Answer:
The Calvin cycle is the second stage of photosynthesis that uses the energy from light-dependent reactions to produce organic molecules from carbon dioxide. It occurs in the stroma of the chloroplast and consists of three steps: fixation, where carbon dioxide is incorporated into organic molecules; reduction, where the organic molecules are converted into sugars; and regeneration, where the molecules needed for the next cycle are produced.
During these reactions, energy is stored in the form of chemical bonds as carbon dioxide is fixed into organic molecules. The reactant molecule carbon dioxide is converted into sugars, while ATP and NADPH from the light-dependent reactions are used to provide energy for these conversions.
Explanation:
What is the role of carbon storage in organisms?? Plz answer fast in paragraph form if possible
Answers
Biological carbon storage happens when the carbon is stored in natural environment in animals and plants. This process includes what are known as carbon sinks, such as forests, grasslands, oceans, and other bodies of water.
What is Carbon storage?Carbon capture and storage is an attempt to remove the carbon dioxide gas from atmosphere after burning gas, oil, coal, or biomass before it actually enters the atmosphere, and to store it in the environment in various forms. Carbon storage has a success rate of between 50% to 68% of captured carbon, while aspirations of a 90% or 100% capture rate have not been achieved properly.
Carbon storage is carbon which is not emitted into the atmosphere. Less amount of carbon in the atmosphere will reduce the greenhouse gas effect and thus also lessens the impact of climate change and global warming.
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Genetic diversity decreases the more species there are in an area. True or False
Answers
Answer:
False. Genetic diversity tends to increase as the number of different species in an area increases. This is because diverse habitats support a wider range of ecological niches, which in turn support a greater variety of species and genetic diversity within those species. However, it's worth noting that other factors such as habitat fragmentation, invasive species, and climate change can also affect genetic diversity in complex ways.
Explanation:
what are other methods for mesureng bacterial growth
Answers
Answer:
The size of a population of microorganisms in liquid culture may bemeasured by counting cells directly or by first diluting the original sample and then counting cell numbers (see below), or by taking some indirect method such as the turbidity (cloudiness) of the culture.
Explanation:
Improvements in technology have allowed for the raising and harvesting of fish for commercial sale.
Which term describes this practice?
Responses
aquaculture
desalination
water sampling
sonar imagery
Answers
Answer:
Aquaculture
Explanation: Its is the practice of culturing of aquatic life
Aquaculture is technology have allowed for the raising and harvesting of fish for commercial sale.
The farmer's attempts to speed up and improve the growth of aquaculture species are what define aquaculture as a form of farming.
Aquaculture is the process of increasing populations of freshwater, brackish water, and saltwater species in artificial or semi-natural conditions, in contrast to commercial fishing, which also entails catching wild fish.
In contrast to fishing, these methods enable the selective expansion of production of the species that humans desire the most.
In coastal areas, the main potential threats to marine health are poisons, dregs, and overflow. The health of the marine ecosystem offshore is also assessed.
A natural researcher may be necessary, for example, to take into account the impact of an oil slick or other compound risk in the sea. In order to see concerns like the substance cosmetics of residue, the effect of disintegration, and the impact of digging sea bottoms on the marine condition, natural researchers also study the benthic conditions on the sea floor.
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Figure 1 shows a cell found in the glands responsible for producing saliva in the mouth.
Figure 1
Identify the protein, produced by these cells, that is required for digestion of carbohydrates.
Answers
Answer:
salivary amylase
Explanation:
salivary amylase
Help me solve it my life depends on it
Answers
The correct matches are:
C. ChromosomeF. NucleusE. Eukaryotic cellA. DNAWhat are chromoomes?C. Chromosome: Chromosomes are structures within cells that contain DNA, genes, and other genetic material.
F. Nucleus: The nucleus is a membrane-bound organelle found in eukaryotic cells that contains the cell's DNA and is responsible for controlling cell functions and gene expression.
E. Eukaryotic cell: Eukaryotic cells are cells that have a true nucleus enclosed within a membrane and other membrane-bound organelles. They include cells of plants, animals, fungi, and protists.
A. DNA: DNA (deoxyribonucleic acid) is a molecule that carries the genetic instructions used in the development and functioning of all living organisms. It contains the genetic information necessary for the growth, development, and reproduction of cells and organisms.
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Which of the following describes how humans can create a sustainable practice between the green system and the meat system?
A) Replacing crops that are slow to grow with livestock that can produce more food
B) Replacing crop farms with low yield and overgrazed ranches with feedlots to address food insecurity
C) Using crop waste to create food deserts and fewer meat options
D) Using seeds and parts of crops that are not consumed by humans as food for livestock
Answers
Answer:
Explanation: D) Using seeds and parts of crops that are not consumed by humans as food for livestock is one way that humans can create a sustainable practice between the green system and the meat system. This approach reduces food waste and makes use of resources that might otherwise go unused. It also helps to reduce the demand for crops grown specifically for animal feed, which can lead to deforestation and other environmental problems.
Answer:
D) Using seeds and parts of crops that are not consumed by humans as food for livestock
Explanation:
Using seeds and parts of crops that are not consumed by humans as food for livestock is one way to create a sustainable practice between the green system and the meat system. This practice, known as feed conversion efficiency, involves using crop byproducts to feed livestock instead of relying on grain and other feed sources that require significant amounts of land and resources to produce. By using crop byproducts as feed, the livestock industry can reduce its environmental impact and create a more sustainable food system. Additionally, this practice can help reduce waste and make more efficient use of agricultural resources.
What is the differences of mitosis and meiosis
Answers
mitosis refers to the parts of the original nucleus into two nuclei. On the other hand, meiosis refers to each having half chromosomes of the original cell.
in mitosis, there is the maintenance of chromosomes takes place while meiosis leads to a reduction in the no. of chromosomes. There are no variations in mitosis and variants occur in meiosis.
hence at last we can say that the above are the major difference between mitosis and meiosis. All of the explained differences will clearly lead to identifying them in particular. mitosis and meiosis plays a vital role in formation of gametes.
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How is a society likely to address the problem of overuse of wildlife
resources?
A. By developing irrigation techniques that conserve water
B. By cutting down forests to produce more pastureland
C. By creating laws or traditions that regulate hunting and fishing
D. By switching from coal-burning power plants to solar energy
production
Answers
Answer:
C. By creating laws or traditions that regulate hunting and fishing
Explanation:
Wildlife resources refer to wild animals (terrestrial, aquatic etc) in their natural habitat. Wildlife is an integral part of our society, however, they are being overexploited by human activities.
According to the options in the question, one way to address the problem of over use of wildlife resources is by creating laws or traditions that regulate hunting and fishing. Laws that compel hunting and fishing, which are the means humans over use wildlife, will help bring the rate at which these resources are used.
For example, creating a law that prohibits hunting in certain areas will help preserve wildlife in that area because it is a punishable offence by the law to hunt. Hence, wildlife resources will be preserved.
Answer:
. By creating laws or traditions that regulate hunting and fishing
Explanation:
how is earth most likely to change in a place that experiences extensive animal activity
Answers
Answer:
Sand dunes will be formed due to deposition of sediments. Soil will loosen due to vast network of underground tunnels. Cracks will appear in rocks due to freezing and thawing of water.
PLZ HELP WILL MARK BRAIN Which of the following is NOT a component of carbohydrates?
O Amino acids
O Carbon
O Oxygen
O Hydrogen
Answers
Answer:
amino acids
Explanation:
I think this is the right answer I looked through my book
Red blood cells are a type of specialized cell that move _______ and carbon dioxide throughout the body.
A structure made of two or more tissues working together to achieve a common function is a/an _______.
_______ describes the degree of specialization that a cell is able to undergo.
A/An _______ cell can differentiate into all cell types found within an embryo.
In _______ organisms, all cellular activities take place within a single cell.
Respond to the following based on your reading.
Choose a specialized cell type mentioned within the reading (blood cell, muscle cell, or neuron). Do some outside research to understand the tissue this specialized cell is a part of, and what organ and organ system it belongs to.
Answers
Answer:
Red blood cells are a type of specialized cell that move oxygen and carbon dioxide throughout the body.
A structure made of two or more tissues working together to achieve a common function is a/an an organ
cellular defferentiation describes the degree of specialization that a cell is able to undergo.
A/An embroynic stem cell can differentiate into all cell types found within an embryo.
In cytoplasm organisms, all cellular activities take place within a single cell.
Answer:
1.oxygen
2.organ
3.Potency
4.pluripotent
5.unicellular
6.As an example, a group of neurons together may form nervous tissue. Nervous tissue can be found all over the body, but a large collection of it is located in the brain. The brain is a complex organ composed of nervous tissue. The brain is part of the organ system known as the nervous system.
Directions
Imagine you are writing a paper about why critical thinking skills are important in the workplace. Review the lectures on Crediting Sources, APA, and Avoiding Plagiarism.
Then read this article about this topic (the article is also available in the course in case the object link below does not work):
After reviewing article, select a sentence that would be strong support for a paper on critical thinking in the workplace. In a paragraph submitted as a Word document, include the following:
• A sentence to introduce the main idea of the article.
• A signal phrase to let the reader know the following information is from a source
• The quote from the article, including quotation marks and in-text citation.
• A sentence that discusses the quote you chose and connects it with your imaginary paper.
Please review the rubric below for grading criteria.
Answers
Reviewing of articles summarizes the current state of understanding on a topic within a certain discipline.
What is an article review?This is a type of professional paper writing which demands a high level of in-depth analysis and a well-structured presentation of arguments and a critical evaluation of literature in a particular field through summary, classification, analysis, and comparison.
Introducing the main idea of an article:
The first sentence should explain the subject being discussed in the passage.
A signal phrase is a short introductory phrase that indicates that a quote or paraphrase is coming. To introduce a signal phrase, you provide an effective transition between your own ideas and the evidence used to explore your ideas.
To include a quote, use the author's last name and the page number from which the quotation or paraphrase is taken.
To include a sentence which discusses the quote chosen, you:
Use a full sentence followed by a colon to introduce a quotation.Begin a sentence with your own words, then complete it with quoted words.Use an introductory phrase naming the source, followed by a comma to quote a critic or researcher.Hence, a review article is generally considered a secondary source since it may analyze and discuss the method and conclusions in previously published studies.
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Why is it important to understand both physics and chemistry when studying living things?
Answers
answer: both aspects , sameness &variety are the result of biological evolution.
complete the concept map to describe ionic movement during action potentials in cardiac pacemaker and contractile cells, and trace the conduction pathway.
Answers
Concept Map: 1. Electrical Stimulation: The electrical stimulation generated by the sinoatrial node (SA node) or an artificial pacemaker causes ion channels in the cardiac pacemaker cell to open, allowing for the flow of ions into and out of the cell.
What is Electrical Stimulation ?Electrical stimulation (ES) is a form of treatment that utilizes a low-level electrical current to stimulate nerve endings in order to decrease pain, increase muscle strength and improve circulation. Electrical stimulation works by delivering a low-level electrical current to the target area of the body.
2. Action Potential: The action potential is generated when positively charged ions, such as sodium and calcium, enter the cell and cause the membrane potential to become depolarised.
3. Repolarisation: Potassium ions then leave the cell and cause the membrane potential to become repolarised.
4. Conduction Pathway: The action potential then travels along the conduction pathway, which includes the atrioventricular node (AV node), bundle of His, and Purkinje fibers.
5. Contraction: When the action potential reaches the contractile cells, calcium ions enter the cells, causing the cells to contract.
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When observing an ECG, you will see many different deflections from baseline known as waves. These deflections represent various electrical events taking place in the heart that give rise to the mechanical events that help move blood. In addition to the waves that can be observed, there are flat lines between waves and successive cardiac cycles called segments that also represent particular electrical events that take place in the heart. Finally, certain combinations of waves and segments, known as intervals, also identify important events recorded by the ECG. Match each of the following events with the correct phase of an ECG. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
A. P wave
B. ST segment
C. QRS complex
D. PR segment
E. T wave
F. QT Interval
1. Atrial depolarization_____.
2. The ventricles are in their depolarized state____.
3. Total time it takes for the ventricular muscle to depolarize and repolarize____.
4. Ventricular depolarization____.
5. Conduction through the atrioventricular (AV) node____.
6. Ventricular repolarization____.
7. Conduction through the atrioventricular (AV) bundle____.
Answers
Answer:
1. Ventricular depolarization −−QRS complex
2. Total time it takes for the ventricular muscle to depolarize and repolarize −−QT interval
3. Atrial depolarization −−P wave
4. Conduction through the atrioventricular (AV) node −−PR segment
5. Ventricular repolarization −−T wave
6. The ventricles are in their depolarized state −−ST segment
7. Conduction through the atrioventricular (AV) bundle −−Q wave
Explanation:
ECG or electrocardiogram is the graphical representation of the heart's rhythm and electrical activity measured by electrical signals. The contraction of the heart shows electrical activity.
There are various deflections shows from baseline and known as specific waves and there are also some flat lines between waves called intervals. This atrial depolarization is called P wave and ventricular repolarization called T wave and the time between ventricular muscles depolarization ( QRS complex) and repolarization is QT interval. Conduction through the atrioventricular (AV) bundle is known as Q wave.