Which of the following is the best definition of an unsaturated fatty acid? 8 A. A basic unit of a lipid that consists of single and double carbon-to- carbon bonds B. A compound that carries hereditary information C. An insoluble compound made up of glycerol and three fatty acids D. A basic unit of a lipid that consists of only single carbon-to-carbon bonds
A scientist discovers an unknown multicellular organism with an endoskeleton.
Which kingdom does the organism most likely belong to?
Protista
Plantae
Animalia
Archaea
The unknown multicellular organism with an endoskeleton most likely belongs to the kingdom Animalia. Thus, the correct option is C.
What is Kingdom?Kingdom may be defined as a taxonomic classification of the second-highest rank, just below the domain and above the phylum.
Endoskeleton is found in the kingdom Animalia and refers to the skeletons which are present inside the body of the organisms that provide structural support and protection and assist them in migration.
Therefore, the correct option is C.
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three main factors that affect stroke volume and how each impacts cardiac output if that factor is increased?
The three main factors that affect stroke volume are contractility, preload and afterload.
Increase in contractility and preload increases cardiac output whereas increase in afterload decreases cardiac output.
What is stroke volume?Stroke volume refers to the volume of blood that is pumped by the heart through each stroke.
The three factors that affect stroke volume and how it impacts cardiac output when increased is given below:
contractility - an increase in contractility of the heart increases the cardiac outputPreload - an increase in preload increases cardiac outputafterload - an increase in afterload decreases cardiac outputTherefore, the three main factors that affect stroke volume are contractility, preload and afterload.
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Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells
False True
Answer:
False
Explanation:
The statement is false. Though "Robert Hooke" was the first person to observe cork under microscope. He named the small cubicles cells because it used to remind him of the cells in the monastery (a place for monks).
Answer:
False
Explanation:
RobERT Hooke observed the cork first and names the particles as cells .
But he did that in Monastery not jailHence the statement is false
How do mutations affect evolution?
Answer:
Mutations affect evolution by increasing genetic variation and the potential for individuals to differ.
Which is an example of summarizing and reevaluating?
An example of summarizing and reevaluating can be seen in Increasing monitoring of the pati
What is a Summary?
This refers to the concise representation of the main points in a text in an objective manner.
Hence, we can see that after the summary has been done, to make a re-evaluation is important to see if there are missed details, and from the complete text, there is the list of items and the best answer is option D which is Increasing monitoring of the pati.
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Why was the BIOS framework relocated to flash memory from a complementary metal-oxide-semiconductor (CMOS) in later development?
Answer:
Answer is D
Explanation:
Flash memory provides stability to the
BIOS framework and makes update
installation much easier than with CMOS.
Because these two transistors are complementary to one another, a circuit created by combining them is referred to as a complementary MOS circuit, or CMOS circuit for short. Thus, option D is correct.
What is complementary metal-oxide-semiconductor (CMOS)?The majority of modern integrated circuits, commonly referred to as chips or microchips, employ a complementary metal-oxide semiconductor (CMOS) as their semiconductor technology.
Metal-oxide semiconductor field-effect transistor technology is the foundation for CMOS transistors.
Several analog circuits, including image sensors (CMOS sensors), data converters, and highly integrated transceivers for various forms of communication, also use CMOS technology.
Therefore, BIOS framework relocated to flash memory from a complementary metal-oxide-semiconductor (CMOS) in later development.
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Four different thermometers were used to measure the temperature of a sample of impure boiling water. The measurements are recorded in the table below.
Thermometer Temperature
Reading 1 Temperature
Reading 2 Temperature
Reading 3
W 100.1°C 99.9°C 96.9°C
X 100.4°C 102.3°C 101.4°C
Y 90.0°C 95.2°C 98.6°C
Z 90.8°C 90.6°C 90.7°C
The actual boiling point of pure water is 100.0°C.
What can be concluded from the data about the reliability and validity of the thermometers?
A.
Thermometer W is the most reliable.
B.
Thermometer X has the highest validity.
C.
Thermometer Z is the most reliable.
D.
Thermometer Y has the highest validity.
Reliability is another name for the precision of the measurement, and it means how well the value is repeated; this is, how close the different measurements are to each other. If the measurements are close one to each other, then the instrument is precise or reliable (high reliability).
Validity is another name for the accuracy of the measurement; this is, how close the measurement is to the true or accepted value.
With that, we can compare the reliability (precision) and validity (accuracy) of the four different thermometers.
Repeat the table:
Temperatures in °C:
Thermometer Reading 1 Reading 2 Reading 3
W 100.1 99.9 96.9
X 100.4 102.3 101.4
Y 90.0 95.2 98.6
Z 90.8 90.6 90.7
Reliability:
To analyze reliability (precision) we must compare the measures of every thermometer among them. A good approximation can be made calculating the range, i.e. the difference between the largest and the smallest readings:
For W: largest reading - smallest reading = 100.1°C - 96.9°C = 3.2°CFor X: largest reading - smallest reading = 102.3°C - 100.4°C = 1.9°CFor Y: largest reading - smallest reading = 98.6°C - 90.0°C = 8.6°CFor Z: largest reading - smallest reading = 90.8°C - 90.6°C = 0.2°CNow, you conclude that the most reliable is thermometer Z and the least reliable is thermometer Y. The complete ranking, from most reliable to least reliable is:
Z > X > W > Y
Validity:
To determine validity you must compare the mean of the three measures for each thermometer with the accepted value for the boiling point of pure water (100.0°C).
The mean is the sum of the three readings divided by 3.
The absolute error is calculated with the formula:
absolute error = | accepted value - calculated value |.
The calculated value is the mean.
For W: mean = (100.1 + 99.9 + 96.9)°C / 3 = 99.0°C
absolute error = 100.0°C - 99.0°C = 1.0°C
For X: mean = (100.4 + 102.3 + 101.4)°C / 3 = 101.4 °C
absolute error = 101.4°C - 100.0°C = 1.4° For Y: mean = (90.0 + 95.2 + 98.6)°C / 3 = 94.6°C
absolute error = 100.0°C - 94.6°C = 5.4°C
For Z: mean = (90.8 + 90.6 + 90.7)°C / 3 = 90.7°C
absolute error = 100.0°C - 90.7°C = 9.3°C
Now you can rank the thermometers as per their validity (accuracy):
1.0°C < 1.4°C < 5.4°C < 9.3°C
Thus, W is the most accurate, X is the second most accurate, Y is the third, and Z is the least accurate.
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All cells contain a nucleus
true
false
[tex]\huge\sf{ANSWER}[/tex]
All cells contain a nucleus
FalseExplanation is in the pic
Hope it helps
Answer:
True.Explanation:
Why true?For me i say its true because :
All cells have three common organelles namely Cell membrane,cytoplasm and nucleus.possiblity of breaking the branch increase when a person goes to the tip of the branch
Answer:
True
Explanation:
This answer is true because i know it is true and it is common sense so the answer I present is science
1. What observations made in the 1600s and 1700s led some people to believe that there was a
"vital force" in the air?.
Microscopical observations show the presence of simple in structure, abundant, and pervasive microorganisms. Researchers at the time came to the conclusion that there was a life force in the air.
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difine jack screw
please help me
Answer:
A few basic components comprise a jackscrew. The main piece is the screw itself. The screw may be connected to a plate of some kind housing a load or attached to another piece of machinery that is then moved.
Answer:
a screw that can be turned to adjust the position of an object into which it fits.
a vehicle jack worked by a screw device.
Explanation:
hope this help you
Which layer of the dermis houses the nerve endings that are sensitive to touch and pressure?.
Answer:
Reticular layer
Explanation:
In a scientific investigation, the term “quantitative data” refers to numbers that are usually followed by
units.
graphs.
written descriptions.
photos of measurement.
Quantitative data in scientific investigations are numbers usually followed by units. The first option is the correct one.
What are quantitative data?In relation to scientific investigation, quantitative data are attributes that are measurable or quantifiable. Thus, they can be assigned numerical values.
Because of the measurability, variables within quantitative data usually have units attached to them.
For example, height is measured in meters, feet, centimeters, etc.
Quantitative data is opposed to qualitative data because the latter cannot be assigned a numerical value.
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Answer:
A. units.
Explanation:
i got it right
Which of these describes
nucleic acids?
A. Nucleic acids are necessary for life.
B. Nucleic acids are a type of fat.
C. Nucleic acids are only in non-living
things.
Answer:
A) Nucleic acids are necessary for life as they store genetic information in the form of DNA. Hope it helps!
Nucleic acids are the substances that are necessary for life. The correct option is A.
What are nucleic acids?Biopolymers and macromolecules called nucleic acids are necessary for all known species of life.
They are constructed of subunits called nucleotides, which are composed of a nitrogenous base, a phosphate group, and a 5-carbon sugar. Deoxyribonucleic acid and ribonucleic acid are the two primary classes of nucleic acids.
Natural chemical substances called nucleic acids are the main information-transporting molecules in organisms. They are particularly crucial in controlling protein synthesis. Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two primary types of nucleic acids.
The preservation and expression of genetic data is a key role of nucleic acids. The information cells require to build proteins is encoded in deoxyribonucleic acid, or DNA.
Thus, the correct option is A.
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why does dna move through an agarose gel
DNA move through an agarose gel because DNA molecules are negatively charged due to the presence of phosphate groups in their sugar-phosphate backbone which make them to move toward the positive charge in the agarose gel.
What is DNA?Deoxyribonucleic acid or DNA is a protein molecule that us found in the nucleus of a cells which carry the genetic components or content of the cell and are transfer from parent to tye offspring.
Therefore, DNA move through an agarose gel because DNA molecules are negatively charged due to the presence of phosphate groups in their sugar-phosphate backbone which make them to move toward the positive charge in the agarose gel.
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Research has demonstrated that people will help in-group members because __________.
Research has demonstrated that people will help in-group members because they have feelings of empathy.
What is empathy?Empathy is an emotion that helps people to understand the situation in which another person lives.
Empathy also helps to develop healthy groups and communities and it is an evolutionary feature.
In conclusion, research has demonstrated that people will help in-group members because they have feelings of empathy.
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for patients with prediabetes, what strategies does the diabetes prevention program show are effective in reducing the risk of progressing to type 2 diabetes?
Lifestyle changes such as losing weight and living an active life are effective in reducing the risk of progression of prediabetes to type 2 diabetes.
What is diabetes?Diabetes is a disease in which the body is unable to utilize glucose in the body efficiently.
Patients who are prediabetic are at risk of developing diabetes.
However, the diabetes prevention program shows that lifestyle changes such as losing weight and living an active life are effective in reducing the risk of progressing to type 2 diabetes.
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Answer:
it is D
Explanation:
got it right edge 2022
Why does diversity increase as height above land increases
Biodiversity rises with altitude initially before falling with height beyond that. Up until it reaches a diversity peak at about 1 300 to 1 800 m.
The biodiversity increases at higher geographical locations because There are more hiding locations. They are better for crop growth. They frequently include more than one kind of habitat.As latitude or altitude change, so does biodiversity. As we descend from high to low elevations, the diversity increases (i.e., from poles to equator). While the environment is harsh and plants have a brief growing season in the temperate region, tropical rain forests provide year-round growth-friendly circumstances. This enables the emergence and expansion of several species. On a mountain, there is an initial increase in species diversity after which there is a decline in species variety as you go up in elevation. At higher elevations, temperature drops and seasonal variations increase, which significantly diminishes.learn more about biodiversity here: https://brainly.com/question/26110061
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what are the components of the CNS ?
The components of the CNS are the brain and spinal cord.
What is the most important part of the nervous system?It is the most important organ of the nervous system. Considered the most voluminous organ, as it occupies most of the brain, the brain is divided into two symmetrical parts: the right hemisphere and the left hemisphere.
The central nervous system is made up of two basic parts: the brain and the spinal cord. The brain is contained within the braincase, and the spinal cord is contained within the vertebral column, in the vertebral canal.
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how many nanometers is the best resolution achieved with using a light microscope?
The best resolution that can be achieved with light microscopes is; 200nm
What is the resolution of the microscope?The light microscope is also called optical microscope and it is a type of microscope that primarily uses visible light and a system of lenses to produce magnified images of smaller objects.
The best resolution that can be achieved with light microscopes is about 0.2 microns or 200nm because the maximum useful magnification it can provide is approximately 1,000x.
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Identify the type of chromosomal disorder described below.
Blank is known as trisomy 21 and impacts brain and body development.
Blank predominantly affects males and their fertility.
Blank predominantly affects females and can impact their growth.
Answer:
Down Syndrome
Klinefelter syndrome
Turner syndrome
Explanation:
Which statement best explains why cooperation between countries is necessary to prevent a tragedy of the commons?
Since there are so many common areas, sharing between countries should be easier.
If one country overuses a common resource, it depletes the common resource for all.
Common areas are divided among only a few countries, and little access is given to the rest.
Too many countries have access to common areas, and this prevents them from sharing.
The statement which best explains why cooperation between countries is necessary to prevent a tragedy of the commons is that If one country overuses a common resource, it depletes the common resource for all and is denoted as option B.
What is Tragedy of the commons?This is referred to as a situation in which the resources are available to the people and they are overused due to the ease of access to them.
Cooperation between countries will help to curb a country overusing a common resource which will lead to the depletion of the common resource for all.
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A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision?
The kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.
How to calculate kinetic energy?The kinetic energy of a moving car can be calculated using the following formula:
K.E = ½ × m × v²
Where;
K.E = kinetic energym = mass v = velocityK.E = ½ × 1324 × 20²
K.E = 264800J
Therefore, the kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.
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3. what is an ecosystem?
o a group of animals of all the same species in an area
a group of living and nonliving things
the process for converting energy into food
the relationship between plants and animals
Answer:
A group of animals of all the same species in an area.
Explanation:
What happens to the groom ones levels during ovulation?
The BBT is the temperature at which females are the coolest in a 24-hour period. BBT will increase by 0.5 to 1.0 degree Fahrenheit the day after she ovulate and remain elevated until her next period.
What is ovulation?When you ovulate, one of your ovaries releases an egg. You are theoretically fertile for five days prior to ovulation and the day of ovulation. However, if you have se-x during the final three days of this six-day window, your chances of becoming pregnant are at their highest.
The vaginal discharge that occasionally shows up in underwear is cervical mucus. She can experience an increase in cervical mucus and a change in its texture in the days leading up to and right after ovulation.
The cervix is softer, higher, moister, and more open during ovulation.
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Pretend you’re a researcher in charge of conducting new research on the flu virus. Identify four scientific questions you’d like to answer through your research
What organism is responsible for the flu?
How the flu virus enters the person's body?
What is the effect of this virus on person's health?
When the flu occurs to the person?
What is the need of scientific questions?The above are the four scientific questions that a researcher needs to prevent this flu from infecting people. With the help of these questions, the researcher know about the organism that caused this disease, entry of the virus and effect on the body.
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which part of the microscope reflects light
[tex]\huge\color{Basic}{\boxed{\tt{answer}}}[/tex]
which part of the microscope reflects light?THE ANSWER IS MIRRORSWhy mirrors? bcs mirrors are sometimes used in lieu of a built-in light. If your microscope has a mirror, it is used to reflect light from an external light source up through the bottom of the stage. Nosepiece: This circular structure is where the different objective lenses are screwed in.Have a great day^^correct me if I’m wrong
write detail note on malaria 2 study
A detailed note on the malaria is discussed below:
What is malaria?A parasite that frequently infects a particular species of mosquito that feeds on people can result in the serious and occasionally fatal disease known as malaria. Malaria often causes severe disease, including high fevers, shivering chills, and flu-like symptoms. Humans can contract four different types of malaria parasites: Falciparum Plasmodium, P.
Female Anopheles mosquitoes carrying the Plasmodium parasite bite people to feed their own eggs, which is how the parasite is propagated. An infected mosquito injects sporozoites, or early stages of the parasite, into the host's bloodstream while it consumes its prey (often between twilight and sunrise). The sporozoites are transported by the blood to the liver, where they develop into schizonts, which are a type of parasite. Each schizont multiplies into thousands of merozoites throughout the course of the following one to two weeks. The merozoites escape the liver and re-enter the bloodstream where they assault red blood cells, continue to grow and divide, and eventually kill the blood cells.
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Which cells are present during chronic inflammation?
The cells which are present during chronic inflammation include:
LymphocytesMacrophagesPlasma cells.What is Inflammation?This is referred to a process in which the white blood cells enter affected parts and protect the body from foreign agents.
The cells listed work together to ensure that the body isn't invaded by these micro-organisms.
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