In Country I, approximately what percentage of the
individuals were younger than fifteen years of age?
(A) 10%
(B) 21%
(C) 42%
(D) 52%
(E) It cannot be estimated from the graph.
Answers
Related Questions
if 14-year-old john has a bmi in the 45th percentile, this means
Answers
If a 14-year-old boy named John has a BMI in the 45th percentile, it means that his BMI falls within the range that includes 45% of boys of the same age.
BMI, or Body Mass Index, is a measure used to assess body fat based on a person's weight and height. The BMI percentile is a way to compare an individual's BMI to a reference population of the same age and sex. It indicates the relative position of a person's BMI compared to others in the reference group.
In this case, if John's BMI is in the 45th percentile, it means that his BMI is higher than 45% of boys of the same age and lower than the remaining 55%. The percentile range provides a context for understanding John's BMI in relation to his peers. It is important to note that the BMI percentile does not directly indicate whether a person's weight is considered healthy or not, as it does not take into account factors such as muscle mass or body composition. Additional assessments and evaluations may be necessary to determine John's overall health and well-being.
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functions of food preservation
Answers
Answer:
A food preservation technique is one that eliminates or avoids factors that can lead to the spoilage of food internally and externally. Increasing the shelf life of food while preserving its original flavor, color, texture, and nutritional value is the primary objective of food preservation
Answer: 1. To prevent and remove microbial contamination.
2. To inhibit microbial growth.
3. To kill contaminating pathogens.
4. To minimize food spoilage, food infection and food poisoning.
5 Foods are required to be preserved to stop or slow down food spoilage.
6 For longer food storage.
Will you please help, btw i cant open link files (ex-http.su012) on my devise please write the answer out on the answer page. Very much appreciated!
Answers
Answer:
1. HETEROzygous - Having 2 diff.alleles for a gene
2. Dominant - Allele whose trait is always expressed
3.Recessive - Allele whose trait is hidden unless paired.......
4. genotype - the genetic makeup of an individual
5.phenotype - the physical charact.of a trait
6.honozygous - having 2 identical alleles for a gene
some prokaryotic and all eukaryotic cells use oxygen to harvest energy from food molecules. in what form is that harvested energy available to power cell work?
Answers
Answer: The harvested energy is available in the form of ATP to power cell work.
What is cellular respiration?
Cellular respiration is the process of breaking down glucose to produce ATP. The majority of living organisms undergo cellular respiration to generate energy. In the process, oxygen is consumed, and carbon dioxide is released. It is divided into three phases: glycolysis, the Krebs cycle, and the electron transport chain.
In which form is the harvested energy available to power cell work?
ATP, or adenosine triphosphate, is the type of energy that is stored in cells and used to power various cell functions. During cellular respiration, the energy harvested from food molecules is stored in ATP. This energy is used to power cell work such as muscle contractions, active transport of molecules across the cell membrane, and biosynthesis of molecules like proteins and lipids, to name a few.
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the ability of the rib cage to ______ allows an increase in lung capacity for respiration.
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Light dependent reaction of photosynthesis occurs in the
A
stroma
B
thylakoid membrane
C
inner membrane of chloroplasts
D
intermembrane space of chloroplast
Answers
Light-dependent reactions occur in the thylakoid membrane of the chloroplasts. This membrane is located in the chloroplasts in plant cells and is where photosynthesis occurs.
This process converts light energy into chemical energy, which is stored in the form of ATP and NADPH. These products are then used to fuel the second stage of photosynthesis, the light-independent reactions, which take place in the stroma of the chloroplasts.Let us take a look at the other options to gain more clarity on the topic:
Option A: Stromais a gel-like substance that surrounds the thylakoid membrane and is located in the chloroplasts of plant cells. The stroma is where the light-independent reactions of photosynthesis take place. Option C: Inner membrane of chloroplasts - Chloroplasts consist of a double membrane.
The inner membrane is one of the membranes that surround the stroma and the thylakoid membrane. The inner membrane does not participate in the light-dependent or light-independent reactions of photosynthesis.Option D: Intermembrane space of chloroplast - It is the region between the two membranes of chloroplasts and is not involved in the process of photosynthesis.In conclusion, the light-dependent reaction of photosynthesis occurs in the thylakoid membrane of the chloroplasts.
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please help me with this
Answers
Answer:
not 100% sure but my answer would be T F T T F F F F T T
Explanation:
All living things are based on a
universal genetic code. What is this
genetic code called?
A. a cell
B. molecules
C. DNA
Answers
Answer:
C. DNA
Explanation:
Deoxyribonucleic Acid, may look like a curly string
By what proportion does the magnification change when you change from low power magnification to high power magnification?
Answers
The proportion about the magnification change if you change from low power magnification to high power magnification is:
Low power is said to be 10x objective lens so it gives about 100x total magnification. The high power lens is said to be about 40x lens so it gives about 400x total magnification.How does magnification alters when you go from low power to high power magnification?The alterations from low power to high power is known to often boast the magnification of any kind of specimen. The amount that an image is said to be magnified is known to be equal to the magnification of the ocular lens,
Hence, The proportion about the magnification change if you change from low power magnification to high power magnification is:
Low power is said to be 10x objective lens so it gives about 100x total magnification. The high power lens is said to be about 40x lens so it gives about 400x total magnification.Learn more about magnification from
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briefly describe intraspecific competition and explain how it differs from interspecific competition. which of the two kinds of competition is typically more intense?
Answers
Intraspecific competition refers to competition between individuals of the same species for resources such as food, shelter, and mates. On the other hand, interspecific competition refers to competition between individuals of different species for the same resources.
Intraspecific competition is typically more intense than interspecific competition because individuals of the same species have similar needs and requirements, resulting in a higher degree of overlap and competition for resources. Intraspecific competition can also lead to the development of traits that enhance an individual's ability to compete for resources, such as increased size, strength, or aggression.
Interspecific competition, on the other hand, can be less intense as individuals of different species often have different resource requirements, resulting in less direct competition for resources. However, when two species have similar resource requirements and occupy the same niche, interspecific competition can be just as intense as intraspecific competition.
Intraspecific competition refers to the competition among individuals of the same species for limited resources, such as food, shelter, or mates. It can lead to natural selection, as individuals with better adaptations are more likely to survive and reproduce.
On the other hand, interspecific competition occurs between individuals of different species competing for the same resources. This can lead to competitive exclusion, where one species dominates the resource and drives the other species to local extinction or to a niche shift.
Typically, intraspecific competition is considered more intense because individuals of the same species have identical resource requirements and are directly competing with each other, whereas in interspecific competition, different species may have varying resource needs and abilities to exploit those resources.
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Describe the type of movement as either facilitated diffusion, osmosis, or diffusion.
Answers
Answer:
1. Diffusion
2. Osmosis
3. Diffusion
4. Facilitated Diffusion
5. Osmosis
6. Diffusion
Explanation:
Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with membrane protein.
Osmosis- Move water molecules from high concentration to low concentration.
Diffusion- Evenly spread molecules from high concentration to low concentration.
1. Gases move across the room with ease without energy.
2. Water enter skin cells allowing cells to grow and wrinkle without energy.
3. Gases move with ease without energy.
4. Glucose requires energy to transfer.
5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.
6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.
what four major types of health hazards does research in the field of environmental health encompass
Answers
Research in the field of environmental health encompasses the following four major types of health hazards: Chemical Hazards, Biological Hazards, Physical Hazards, and Cultural Hazards.
Chemical Hazards: These hazards involve exposure to toxic chemicals such as pesticides, heavy metals, and solvents that have an adverse effect on human health. These substances can enter the body through different routes such as inhalation, skin absorption, and ingestion.
Biological Hazards: These hazards involve exposure to living organisms, including bacteria, viruses, fungi, and parasites. They can be transmitted through air, water, soil, or food.
Physical Hazards: These hazards are related to environmental factors that can lead to injuries or accidents, including noise pollution, radiation, extreme temperatures, and natural disasters.
Cultural Hazards: These hazards are related to lifestyle factors and can contribute to chronic diseases. Some examples include poor nutrition, physical inactivity, smoking, and excessive alcohol consumption.
Research in the field of environmental health has focused on understanding and addressing these hazards to improve public health.
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describe the primary function of the three types of muscle
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The primary function of the three types of muscle is to generate force and enable movement in the body.
Muscles play a crucial role in our ability to move and perform various physical activities. There are three types of muscles: skeletal, smooth, and cardiac. Skeletal muscles are attached to the bones and responsible for voluntary movements, such as walking, running, and lifting objects. These muscles work in pairs, with one muscle contracting while the other relaxes, allowing for coordinated movement. They also help maintain posture and stabilize joints.
Smooth muscles, found in the walls of organs and blood vessels, have an involuntary function. They are responsible for the rhythmic contractions that occur in our digestive system, allowing for the movement of food through the gastrointestinal tract. Smooth muscles also regulate the diameter of blood vessels, influencing blood flow and blood pressure.
Cardiac muscle, found exclusively in the heart, is responsible for pumping blood throughout the body. It contracts rhythmically and involuntarily, ensuring a continuous circulation of oxygenated blood to all organs and tissues. The unique structure of cardiac muscle allows for efficient and synchronized contractions, enabling the heart to function as a powerful pump.
In summary, the primary function of skeletal muscles is voluntary movement and joint stabilization, smooth muscles regulate movement in internal organs and blood vessels, and cardiac muscles ensure the continuous pumping of blood throughout the body.
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Do you think the school system is not that challenging?
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You are tasked with creating an infomercial OR writing a five paragraph research paper to help inform the public about the COVID 19 virus and the vaccine.
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COVID-19 is a contagious virus that has rapidly spread worldwide and has become a global pandemic.
What is COVID-19?
It is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and can cause severe respiratory illness, fever, cough, and body aches. The best way to prevent the spread of COVID-19 is to practice good hygiene, wear a mask, and get vaccinated.The COVID-19 vaccine has been developed to protect individuals from the virus. It is safe, effective, and is being distributed worldwide. The vaccine works by teaching the body's immune system to recognize and fight the virus.The COVID-19 vaccine is administered in two doses, with the second dose given a few weeks after the first dose. It is important to get both doses to ensure maximum protection against the virus. The vaccine is available for free to everyone, regardless of their citizenship status or insurance coverage.Getting vaccinated not only protects yourself from the virus but also helps to protect others around you. When enough people are vaccinated, it creates herd immunity, which helps to stop the spread of the virus in the community.Vaccination is the most effective way to end the pandemic and return to normalcy.In conclusion, COVID-19 is a serious virus that has impacted the world in unprecedented ways. The vaccine is a crucial tool in stopping the spread of the virus and ending the pandemic. By getting vaccinated, individuals can protect themselves, their loved ones, and their communities from COVID-19.To know more about COVID-19, click the link given below:
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Clonal interference doesn't occur in the human species. Why?
Answers
Answer:
In a small population with a small to modest mutation rate, the establishment of a beneficial mutation is an extremely rare event so clonal interference is unlikely to occur, and the distribution of mutations that fix are simply the distribution of mutations that establish.
Please help!!!
It’s today!!!
Answers
Answer:
1.(HOST)
2.(AIDS)
3.(CAPSID)
4.(HIV)
5.(INFECT)
6.(VACCINE)
7.(VIRUS)
8.(LYTIC)
9.(INFECTIOUS)
10.(DISEASE)
11.(PROPHAGE)
12.(REPRODUCTION)
13.(LYSOGENIC)
Explanation:
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Which of the following eat producer organisms in a food chain?
A. quarternary consumer
B. tertiary consumer
C.
primary consumer
D. secondary consumer
Answers
Answer:
answer is primary consumer
the diffusion of water through a permeable membrane is called what
Answers
Answer:
The diffusion of water is called osmosis.
Explanation:
Osmosis is a type of diffusion in which water molecules diffuse through a particular permeable membrane of high water concentration to areas of lower water concentration.
In which era were the first dinosaur fossils found?
Answers
Answer:
1677
Explanation:
Robert Plot discovered the first dinosaur bone, they thought It was just a human bone but later they found out it was a dinosaur bone.
The myth of the cyclops is based on which of these fossil animals? Elephants/mammoths/mastodons
Answers
The myth of the cyclops is based on the fossil animals known as mammoths. A mammoth is any of various large, hairy, extinct elephants of the family Elephantidae, commonly classified in the genus Mammuthus.
They were prevalent worldwide from the Pliocene epoch (from around 5 million years ago) into the Holocene at about 4,000 years ago and they lived during the Ice Age. These huge animals had large tusks and had a size and shape that was similar to those of elephants. As they roamed the Earth, these majestic creatures left behind enormous fossils, including teeth and bones.
Cyclops myth- According to the ancient Greeks, the cyclops was a mythical giant with a single eye in the center of his forehead. The creature was typically portrayed as a vicious brute who would trap unwary sailors and eat them whole. These legends are thought to have originated from the discovery of huge fossilized bones by people who had never seen such huge animals before and thus found it difficult to imagine how they would have looked when alive.
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Which of the following statements is true about viruses?
Viruses contain very small cells
Viruses never eat any food
Viruses can reproduce themselves quickly
Viruses have hyphae that help them take up water
Answers
Explanation:
viruses may contain very small cells viruses can produce them quickly when they get a mode of transmission viruses have hyphae BUT viruses never eat any food so second statement is true....
please explain how an increase of CO2 in the blood will effect the
URINE pH (explain the mechanism, will it increase or decrease urine
pH?)
Answers
When an increase in carbon dioxide (CO2) occurs in the blood, it leads to an increase in the acidity of the blood. This is because when CO2 levels in the blood rise, carbonic acid levels also rise, causing a decrease in blood pH. In response, the body will try to eliminate the excess CO2 by increasing respiration.
When an increase in carbon dioxide (CO2) occurs in the blood, it leads to an increase in the acidity of the blood. This is because when CO2 levels in the blood rise, carbonic acid levels also rise, causing a decrease in blood pH. In response, the body will try to eliminate the excess CO2 by increasing respiration. The increase in respiration leads to the elimination of carbon dioxide from the body via exhalation. This process restores blood pH to its normal level.
The kidneys also play a role in regulating blood pH. They excrete excess hydrogen ions (H+) into the urine to maintain the balance of acids and bases in the blood. When blood pH falls, the kidneys excrete more H+ into the urine, causing urine to become more acidic.
Conversely, when blood pH rises, the kidneys excrete fewer H+ into the urine, causing urine to become more alkaline. Therefore, an increase in CO2 levels in the blood will lead to an increase in acidity, causing the kidneys to excrete more H+ into the urine, which will decrease the urine pH.
This is because the excess CO2 in the blood leads to an increase in the production of carbonic acid, which dissociates into bicarbonate ions (HCO3-) and H+ ions. The H+ ions are then excreted by the kidneys into the urine, causing a decrease in urine pH. Hence, an increase in CO2 levels in the blood will cause a decrease in urine pH. This mechanism helps to maintain the body's acid-base balance.
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What is the average cropland fraction for the small farms?
A) 10%
B) 25%
C) 50%
D) 75%
Answers
The average cropland fraction for the small farms is option B) 25%.What is cropland fraction? the correct option is B) 25%.
Cropland fraction is the percentage of land used for crops or agriculture. Cropland fraction is calculated as follows: Cropland fraction = (cropland area/total land area) × 100%.Cropland fraction for small farmsCropland is land that is mainly used for agricultural production. The average cropland fraction for small farms varies according to the size of the farm. Small farms usually have a higher percentage of cropland. The average cropland fraction for small farms is around 25%.
The average cropland fraction for small farms can vary depending on the specific region and agricultural practices. However, without further information or context, it is not possible to provide an accurate average cropland fraction for small farms.
The percentage of cropland can be influenced by factors such as farm size, location, climate, crop types, and farming techniques. It can range widely from less than 10% to more than 75%, depending on these variables.
Therefore, without specific information or a defined context, it is not possible to determine the average cropland fraction for small farms.
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Using water potential explain why the onions gained mass when soaked in diluted solutions of sodium chloride
Answers
Answer:
the cells of onions are maintained in isotonic condition when they are soaked in hypertonic solutions like dil. sodium chloride water will be moved into cells to maintain water potential. this is the reason onions gain mass
List 4 differences between aerobic and anaerobic cellular respiration processing of sugar.
Answers
________ occur when the internal abdominal tissues are damaged but the skin is unbroken.
Answers
The term you're looking for is "internal abdominal injury".
This type of injury can occur due to various reasons, such as blunt force trauma, falls, or sports-related accidents. When the internal tissues of the abdomen are damaged, it can lead to severe pain, swelling, and internal bleeding. In some cases, the symptoms may not be immediately apparent, and the injury may go unnoticed until complications arise. It's essential to seek medical attention if you suspect you have an internal abdominal injury, as it can be life-threatening. Treatment may involve rest, pain management, and in severe cases, surgery. Overall, it's essential to take any injury seriously and seek prompt medical attention if you experience any symptoms or discomfort.
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which characteristics are unique to cervical vertebrae only? choose the best answer.
Answers
The characteristics that are unique to cervical vertebrae only include the presence of transverse foramina and bifid (split) spinous processes. These features are specific to the cervical region of the skeleton.
Unique characteristics of cervical vertebrae include the presence of a foramen (hole) in the transverse process called the transverse foramen, and a small, bifid (split) spinous process. These features are specific to cervical vertebrae within the skeleton and not found in other types of vertebrae.
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The characteristics that are unique to cervical vertebrae only include the presence of transverse foramina and bifid (split) spinous processes. These features are specific to the cervical region of the skeleton.
Unique characteristics of cervical vertebrae include the presence of a foramen (hole) in the transverse process called the transverse foramen, and a small, bifid (split) spinous process. These features are specific to cervical vertebrae within the skeleton and not found in other types of vertebrae.
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Which organic molecule Makes
antibodies
and provides
structure and
support
Answers
true or false: the presence of e. coli in water indicates that dangerous pathogens are present in the water.
Answers
Answer: True
Explanation: The presence of E. coli in water indicates recent fecal contamination and may indicate the possible presence of disease-causing pathogens, such as bacteria, viruses, and parasites.
Answer:
True
Explanation:
the prescence of e. coli in water means that there was a fecal infection in that water. this is dangeous and most likely if not 100% means you are at risk for pathogens (germs) in that water. do not drink that water.
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