Answer:
(a) bat wing and human hand.
Explanation:
Homologous structures are structures with the same embryonic origin but are modified to perform different functions.
Both the bat wing and the human hand are pentadactyl (five digit) limb structure though they perform different functions.Their bat wing and human hand limb contain of three parts;the humerus ,the radius and ulna,a hand made up of carpals ,metacarpals and phalanges.
This clearly indicates that they share a common ancestry but due to divergent evolution they are modified to perform different functions hence referred to homologous structures.
what questions and answers lead you to the decision that an organism is from the kingdom Archaebacteria
Explanation: we will conclude this by the following characteristics:
1.organims that lack a proper nucleus.
2.they have membrane bounded organelles
3.they are tiny single cell oraganisms which cannot be seen by naked eye.
4.they are the oldest livinh organisms on earth
5.they are present in very harsh conditions like volcanic vents or at the bottom of the sea
To identify an organism as part of the kingdom Archaebacteria, examine its lack of a cell nucleus, unique cell membrane composition, preference for extreme environments, and genetic sequences.
The kingdom Archaebacteria belongs to the domain Archaea. Here are some questions and key characteristics to determine if an organism is part of this kingdom:
Does the organism have a cell nucleus? Archaebacteria are prokaryotes, so they lack a cell nucleus and other membrane-bound organelles.What is the composition of the cell membrane? The cell membranes of Archaebacteria contain unique lipids that are not found in Bacteria or Eukarya.Where does the organism thrive? Many Archaebacteria are extremophiles, thriving in extreme environments such as hot springs, salt lakes, and anaerobic conditions.What are the genetic sequences of the organism? Genetic analysis, especially of ribosomal RNA, shows distinctive differences between Archaebacteria and other domains, like Bacteria and Eukarya.Collecting and analyzing these answers will help you confidently classify an organism as part of the kingdom Archaebacteria.
Which describes farsightedness? Check all that apply.
Distant objects are blurry. Nearby objects are blurry.
Objects appear larger when wearing corrective glasses.
Objects appear smaller when wearing corrective glasses.
Convex lenses can correct it.
Concave lenses can correct it.
Answer:
the answer is a
Explanation:
i am farsighted so i were glasses for this reason and hate it some times but they work
Answer:
Option B - Objects appear larger when wearing corrective glasses
Option D - Convex lenses can correct it
Explanation:
Farsightedness is a problem in which a person is able to view far away objects clearly but is unable to view nearby objects.
A convex lens is used to correct farsightedness. The focal point lie behind the retina of eyes as the distance between the retina and eyepiece is very small , thus to correct this convex lens is used which reduces the focal length.
A convex lens magnifies an object and make it larger than its normal size thus the nearby object which was not visible earlier is now easily visible.
Thus, both option B and D are correct.
Brittany wants to use a model to study soil erosion on hills. She is told that farmers can prevent soil erosion by plowing so that their furrows run along hills instead of up or down hills. She fills a pan with dirt, packs the dirt firmly, then shapes it into parallel furrows. What should Brittany do with her pan of dirt next in order to study soil erosion? A. Prop up one end of it to make a slope and carefully pour water over it B. Shake the pan rapidly back and forth C. Set it outside and check on it every day D. Fill the pan with water, then tilt it until all the water runs out
Answer:
A. Prop up one end of it to make a slope and carefully pour water over it.
Explanation:
Soil erosion leads to infertility of the land due to the loss of the top soil which contains soil nutrients.This leads to low production by the farmers and also reduces the crops quality and yields.Plowing the land up or down hills increases the rate of erosion for channels carrying runoff water flow are created easily leading to carrying of the top soil fro the top of the hill to the bottom.When the land furrows run along hills, water landing on top of the hill cannot form water run ways down the hill and this helps reduce erosion.
The embryos of a fish, chicken and rabbit all contain a tail and pharyngeal pouches at some point during their early development. Although the fetus of all these species looks different from one another, the similiarity between these organisms during their embryological development suggests an evolutionary relationship among all _________________________ species. A) avian B) invertebrate C) mammalian D) vertebrate
Answer:
The answer is vertebrate.
Explanation:
Vertebrates are those animals that have a central spinal cord. Fish, Chicken and rabbit can be classified as vertebrates because they all have a spinal cord. The vertebrate is a big term that is further divided into different classes for example Fish, amphibians, mammals, avian, and reptiles,
Answer:
The answer is D)Vertebrate
Explanation:
How is homeostasis important to enzymes? Please Explain your answer.
Homeostasis is important to enzymes because in order to function properly, they need to be in prime conditions and keeping homeostasis, a consistent internal environment (right temperature, right pH, right glucose levels in blood, etc). If homeostasis is not kept he enzymes will not be able to work properly. For example, if temperature get too high the enzymes will denature (get destroyed basically) and will be unusable, if temperatures get to low the bonds the enzyme has will get to stiff and substrate won’t get able to bond to it, both slowing enzyme production. There are other examples but basically homeostasis is necessary for consistent and fast enzymes.
Homeostasis is vital to enzymes as it maintains conditions for optimal enzyme activity. It includes mechanisms that regulate temperature and pH to preserve enzyme structure and function, and it also involves feedback mechanisms for maintaining equilibrium in the body's metabolic processes.
Importance of Homeostasis to Enzymes
Enzymes are biocatalysts that facilitate almost all biochemical reactions in the body, but they require specific temperatures and pH levels to maintain their active site conformation and function properly. Homeostatic mechanisms work continuously to regulate internal conditions, such as temperature and pH, ensuring that enzymes can perform their roles efficiently. For instance, thermoregulation is a form of homeostasis that prevents enzymes from denaturing due to high heat or becoming less active in colder temperatures.
Moreover, the regulation of enzyme activity is a key aspect of maintaining homeostasis within cells. This regulation allows for enzymes to be activated or inactivated as needed, enabling cells to respond to changes and maintain equilibrium. In essence, homeostasis and enzymes work together to ensure that the body's metabolic processes operate smoothly. Feedback mechanisms also play an essential role in homeostasis, with negative feedback loops acting to reverse changes and positive feedback loops amplifying them. For example, when body temperature deviates from the ideal range, feedback mechanisms will trigger responses to bring it back to normal, much like the adjustments made by a thermostat to maintain a steady temperature in a home.
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A scientist has done his background research and has designed an experiment to test a popular scientific theory. Which of the following should he do next?
Design the report
Know and follow the steps of the scientific method
Make tables and graphs of the data collected
Organize the data collected
Answer:
B
Explanation:B because you have to perform the experiment before making a report
I think it’s C make a tables and graphs of the data collected
Which of the following is a way that science has benefited society? a. medical advances b. new energy resources c. technological advances d. all of the above Please select the best answer from the choices provided
Answer: . all of the above
Explanation:
Science has benefited the society by contributing to wide areas of scientific fields like their contribution in medical science, invention of alternative sources of energy, and technological advances.
Medical science: Scientists have conducted many research in order to determine the cause of diseases and their possible diagnostic treatments.
New energy: Scientists have found out energy harnessing technology from renewable resources like water, sunlight and biomass which can meet the energy requirement of human society when conventional resources will not be available.
Technological advances: Scientists have contributed to the development of diversity of machinery which can reduce the human labor.
Answer:
The answer is d all of the above
Explanation:
A crater in mexico's yucatan peninsula may be the result of an impact that brought about the extinction of numerous species at the end of the ________ period.
Answer:
Cretaceous
Explanation:
From what has been examined so far, there are evidence that at the end of the Cretaceous period a very large asteroid or comet stuck the Earth. The impact was where modern day Yucatan is located, and it released such an enormous energy that it managed to change the face of the Earth. The explosion itself managed to kill off pretty much everything nearby, but there was also a very hot wave that circled the whole planet. Enormous amounts of dust and ashes were released into the atmosphere that blocked the Sun, and the volcanoes all over the globe were triggered. This caused major climate and environmental changes, leading to a mass extinction, with the most noticeable victims being the dinosaurs.
Nuclear energy is considered to be one of the most environmentally friendly sources of energy. Compared to traditional sources of energy such as the combustion of fossil fuels, it produces fewer greenhouse gas emissions during the production of electricity. What is another advantage of using nuclear energy?
It produces more energy faster than these other sources of energy
Nuclear energy is highly efficient and provides a steady and reliable source of power, which contributes to the stability of power grids. The infrastructure for nuclear energy is already well-established. In the future, nuclear fusion could offer an even safer and cleaner source of energy.
Explanation:Another advantage of using nuclear energy is its high energy density compared to traditional sources of energy. This means that nuclear energy is highly efficient, as it can produce a significant amount of energy from a relatively small amount of fuel. Additionally, nuclear energy provides a steady and reliable source of power, unaffected by changes in weather or raw material prices, thus contributing to the stability of power grids.
Furthermore, the techonology and infrastructure for nuclear energy are already well-established, unlike for some renewable energies where extensive development and scaling are still needed. For example, nuclear fission power plants are already present across the world and provide a significant quantity of the world's electricity.
Future technologies such as nuclear fusion can also provide an even greater reduction in greenhouse gas emissions while utilizing more abundant and less hazardous fuels than nuclear fission. Scientists believe that fusion reactors are nearly here, representing a safer, cleaner and more abundant potential source of energy.
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Bacteriophages are viruses that infect bacteria. In an experiment, bacteriophages were labeled with either radioactive phosphorus or radioactive sulfur. The labeled bacteriophages were incubated with bacteria for a brief amount of time and then removed. The infected bacteria cells were found to contain significant amounts of radioactive phosphorus but not radioactive sulfur. Based on the results of the experiment, which of the following types of molecules did the bacteriophages most likely inject into the bacteria cells? (A) Simple carbohydrate (B) Amino acid (C) DNA (D) Polypeptide Unauthorized copying or reuse of any part of this page is illegal. GO ON TO THE NEXT PAGE. -9
Answer:
(C) DNA
Explanation:
This experiment shows that when bacteriophage infects bacteria, it only inserts its DNA (radioactive phosphorus is incorporated only in nucleic acid, while radioactive sulfur is incorporated only in proteins). Proteins with incorporated sulfur are located within the capsid of bacteriophage, which stays outside the bacterial cell.
_____ is the genetic makeup that is responsible for a particular trait
Answer:
Genotype
Explanation:
The genotype is the genetic makeup that is responsible for a particular trait. Genotype is the combination of alleles that were inherited from the parents. Unlike phenotype, genotype is not observable, but it determines what trait will be physically expressed. For example, if Dimples (D) is dominant over no dimples (d) and a woman is heterozygous for dimples the genotype woud be:
Dd
plz help me
WILL GIVE BRAINIEST
Answer:
The correct answer to this question should be a drup called antibiotics.
In our case, we need to look for something that helps us deal with bacteria infection, or in other words, treating diseases caused by bacteria. A drup that interfers with viral DNA is responsible for treating a kind of virus that basically attack DNA to live. And I would consider the drug that moderates you use of sugar should be used to solve problem related to the amount of sugar in your body, maybe diabetes. Antibiotics is especially designed to kill bacteria, so it is the correct answer.
***HELP ASAP***A group of land plants performs photosynthesis, has specialized tissues and a cuticle, but does not have seeds. Which hazard of living on land would this group of plants likely struggle with the most?
A)water loss through leaves
B)young plant death due to lack of water
C)transporting water
D)using the Sun’s energy to make food
The answer would have to be B
The hazard of living on land would this group of plants likely struggle with the most is young plant death due to lack of water.
What are seedless plants?Seedless plants are those who does not contain seeds and do not produce flowers. Examples are ferns, horsetails, mosses, and liverworts.
These plants have roots, leaves and stem but no seeds, they have specialized tissue that conduct water and food.
Thus, the correct option is B) young plant death due to lack of water.
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Allele frequency refers to the fraction of individuals with a particular version of a given gene. What effect does natural selection have on the allele frequency of a population? A. It causes the allele frequency to resemble that of a small number of individuals that became separated from the rest of the population. B. It increases the frequency of alleles that improve a species' survival in a particular environment. C. It causes random changes and the allele frequency of certain traits may increase or decrease. D. It greatly reduces the total population, which increases the effects of genetic drift on allele frequency.
Answer:
It increases the frequency of alleles that improve a species' survival in a particular environment.
Explanation:
Basically, good traits stick around, and Allele with these traits reproduce more, and Alleles without these good traits don't reproduce as well.
Natural selection increases the frequency of alleles that improve a species' survival in a particular environment (Option B).
What is natural selection?Natural selection refers to the differential survival and reproduction of the fittest organisms in a population.
Natural selection can be considered the main mechanism for evolution to occur.Natural selection favors the presence of the more adapted genetic combinations (alleles) in the population.In conclusion, natural selection increases the frequency of alleles that improve a species' survival in a particular environment (Option B).
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The majority of the cell membrane is composed of what type of lipids?
Answer:
The majority of the cell membrane is composed of PHOSPHOLIPIDS.
Explanation:
Phospholipids are a type of lipid that is found in the cell membrane of cells. This type of lipid are a good fit for cell membrane because they have the capacity to form bi layers. The lipids are divided into tail and head regions; the head is hydrophilic in nature while the tail is hydrophobic in nature. The hyrophilic head is made up of phosphate group while the hydrophobic tail is made up of fatty acid molecules.
Based on this information, do you still think lions and tigers are separate species? (all responses will be marked correct.)
The cat species are extremely hard to tell apart as they all have pretty much the same anatomical structure, with the size usually being what differs them most easily. The lion and the tiger are no exceptions. Both species share pretty much the same anatomy, their size is similar, their genetics are almost identical, their behavior is largely the same. This can be very confusing as it seems like it is one species we are talking about, not two separate ones. The only obvious difference between the tiger and the lion is their fur. The tigers have orange base with vertical black stripes, while the lions are dark yellowish, with the males having a mane as well. The easiest way to check if its two different species in question is to see if they can produce healthy offspring. This is where we can see that it is different species we are talking about. While the lion and the tiger are able to produce offspring, the offspring is abnormally marge, much more than any of the parents. But what is more important is that the offspring is sterile, and very often comes with serious deficiencies, thus providing us with proof that it is two separate species.
What is the most common mental health diagnosis for youth in detention and correction facilities?
Depression is the most common mental health diagnosis
31. Small openings in the epidermis that allow carbon dioxide, water and oxygen to diffuse into and out of the leaf are known as
A. Stomata
B. Phloem
C. Xylem
D. Meristems
32. Vascular tissue that conducts water and minerals from the roots to all parts of the plant is known as
A. Stomata
B. Phloem
C. Xylem
D. Meristems
33. The regions of unspecialized cells that undergo mitosis to create new cells are called
A. Stomata
B. Phloem
C. Xylem
D. Meristems
31:stomata 32:xylem 33:meristems
Answer:
1. Stomata: The small openings that allows the movement of gases from the leaves to the outer environment and from the environment to the plant body is known as stomata.
They consists of mesophyll cells that builds the pressure inside the cell because of which the gaseous exchange takes place.
2. Xylem: The water and nutrients from the soil is conducted to the plant body for the production of food by the help of the process known as photosynthesis.
This process is important for the plants and other organisms in order to survive and get energy.
3. Meristems: This is the region of the plant that keeps on dividing. These cells give rise to various organs of the plant body.
This is found in the growth regions. These cells are found in the roots of the plants.
Which discovery did not contribute to cell theory?
All living things are made of cells.
All cells require ATP for energy.
Cells are the basic unit of function in living things.
All cells come from other cells.
The discovery that did not contribute to the cell theory is all cells require ATP for energy. Thus, the correct option is B.
Who proposed the cell theory?Cell theory was proposed by two famous biologists named Matthias Scheiden and Theodore Schwann in 1839.
The cell theory states that all living things are made up of cells. The cell is the basic structural and functional unit of life. All cells are arising from pre-existing cells.
Therefore, the correct option for this question is B.
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Final answer:
The statement 'All cells require ATP for energy' did not contribute to the fundamental cell theory, which focuses on the structure, origin, and function of cells in living organisms.
Explanation:
Contributions to Cell Theory
The discovery that did not contribute to cell theory is the statement that 'All cells require ATP for energy'. While it is true that cells require ATP (adenosine triphosphate) to store and transport energy for cellular processes, this fact is not a component of the fundamental cell theory. The cell theory specifically consists of three main principles:
All organisms are made of one or more cells.
The cell is the basic unit of function and life in all living organisms.
All cells come from existing cells through the process of cell division.
ATP as an energy requirement for cellular processes is part of cell metabolism and biochemistry, but it is not explicitly mentioned in the original cell theory. Instead, cell theory focuses on the structure, origin, and function of cells in living organisms.
The easiest component of biodiversity to measure is
The answer is species diversity. Hope this works!
Fresh water is one of the most important natural resources on earth. Above is a chart that shows how water is used by a typical family. Below are four ways you can conserve water. Which would conserve the most water?
Can I see the chart? You can add an image of the chart by clicking the paperclip icon when asking your question.
Answer: B
Explanation: Stopping all the leaks in your house.
In the film Avengers: Infinity War the main villain, Thanos, wipes out half of the life in the universe. His rational for doing this is that without some sort of intervention ALL life would cease to exist. And, furthermore, that those left behind after he destroys/unmakes will see a more prosperous and peaceful life. Was Thanos right/justified in his actions? Why or Why not?
Answer:
Explanation:
His conclusion is correct. We are overpopulated. Our planet cannot stand double the population it currently has. Waste for one thing is an unsolvable problem with 14 billion people on the planet. We are already in massive trouble with 7 billion.
But the moral principle involved is not correct. Laws have been set up that prevents us from killing each other off. Holocausts have solved nothing but that we are capable of mass murder. The population problem and all it's side effects have not been eradicated.
The Bible records God's attempt at doing what Thanos wanted to do. He saw immediately after the flood that was not the answer. Too many people is one thing. Murdering half is no answer that will work.
Answer:
Now that you say it that way, it sounds as if Thanos was trying to help. Though wiping out half of the population wasn't the very best solution, he had reasoning behind why he did this.
What vessel branches off the aorta and brings blood into the kidneys
Answer:Renal artery
Explanation:
Photosynthesis releases energy that is immediately useable by the cell to do work.
True Or False
I think it’s False because cellular respiration releases
How many different types of gametes can be produced by a plant with genotype aabbccddeeff?
Answer:
Only one type of gamete
Explanation:
Since the given genotype is homozygous recessive for all loci, all formed gamets will be the same (all of them will have one recessive allele). This means that only one type of gamete can be produced. That gamete is abcdef.
Which type of sensory receptor is responsible for smell and taste?
Chemoreceptors are responsible for smell and taste
Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body’s cells. Which organelle is most likely malfunctioning in the patient’s cells?
Answer:
The correct option is LYSOSOMES.
Explanation:
The options attached to the question above are as follows:
A. Golgi apparatus.
B. Lysosomes.
C. Ribosomes.
D. Endoplasmic reticulum.
Lysosomes are membrane bound organelle in animal cells that are responsible for breaking down and recycling of biochemical substances. They take in, break down and digest waste products and dead cell organelles. Due to the functions that they perform, they are sometimes refers to as the cell garbage disposal. Any malfunctioning of the lysosomes will lead to build up of waste materials in the body cells; this is because the lysosomes' ability to take up and destroy the waste materials would have been impaired.
Answer:
Answer lysosomes
Explanation:
For each data set, which aspect of the data is likely to cause evidence obtained from it to be inconsistent?
Data Set I: 190, 315, 198, 194, 200, 195, 540, 201, 197, 193 (“correct” value = 195)
AccuracyPrecisionOutliers
Data Set II: 12, 18, 9, 13, 14, 19, 11, 20, 19, 12 (“correct” value = 15)
AccuracyPrecisionOutliers
Data Set III: 50, 49, 48, 51, 52, 50, 50, 49, 51, 53 (“correct” value = 65)
AccuracyPrecisionOutliers
For each data set, which aspect of the data is likely to cause evidence obtained from it to be inconsistent?
Data Set I: 190, 315, 198, 194, 200, 195, 540, 201, 197, 193 (“correct” value = 195)
AccuracyPrecisionOutliers
Data Set II: 12, 18, 9, 13, 14, 19, 11, 20, 19, 12 (“correct” value = 15)
AccuracyPrecisionOutliers
Data Set III: 50, 49, 48, 51, 52, 50, 50, 49, 51, 53 (“correct” value = 65)
AccuracyPrecisionOutliers
For each data set, which aspect of the data is likely to cause evidence obtained from it to be inconsistent?
Data Set I: 190, 315, 198, 194, 200, 195, 540, 201, 197, 193 (“correct” value = 195)
AccuracyPrecisionOutliers
Data Set II: 12, 18, 9, 13, 14, 19, 11, 20, 19, 12 (“correct” value = 15)
AccuracyPrecisionOutliers
Data Set III: 50, 49, 48, 51, 52, 50, 50, 49, 51, 53 (“correct” value = 65)
AccuracyPrecisionOutliers
For each data set, which aspect of the data is likely to cause evidence obtained from it to be inconsistent?
Data Set I: 190, 315, 198, 194, 200, 195, 540, 201, 197, 193 (“correct” value = 195)
AccuracyPrecisionOutliers
Data Set II: 12, 18, 9, 13, 14, 19, 11, 20, 19, 12 (“correct” value = 15)
AccuracyPrecisionOutliers
Data Set III: 50, 49, 48, 51, 52, 50, 50, 49, 51, 53 (“correct” value = 65)
AccuracyPrecisionOutliers
Answer:Data Set I: 190, 315, 198, 194, 200, 195, 540, 201, 197, 193 (“correct” value = 195) ✔ OutliersData
Set II: 50, 49, 48, 51, 52, 50, 50, 49, 51, 53 (“correct” value = 65) ✔ Lack of accuracy
Set III: 12, 18, 9, 13, 14, 19, 11, 20, 19, 12 (“correct” value = 15) ✔ Lack of precision
Explanation: E2022
For each data set, the aspect that is likely to cause inconsistent evidence is outliers for both Data Set I and Data Set II, and inaccuracy for Data Set III."
"The correct aspects of the data likely to cause evidence obtained from each data set to be inconsistent are as follows:
Data Set I: Outliers
Data Set II: Outliers
Data Set III: Inaccuracy
For Data Set I, the values are relatively consistent, with most measurements clustering around the correct value of 195, except for one value, 540, which is significantly higher than the rest. This extreme value is an outlier and is likely to skew the results, leading to inconsistent evidence. Outliers can significantly affect the mean and other statistical measures, thus causing inconsistency in the data analysis.
For Data Set II, the values are spread out around the correct value of 15, but there is no single value that stands out as drastically different from the rest. However, the range of the data is quite wide, and there are several values that are somewhat distant from the correct value. This variability in the data can be attributed to outliers, as there are multiple values that deviate from the central tendency. These outliers can lead to inconsistent evidence when analyzing the data.
For Data Set III, the values are clustered closely together, with all measurements ranging from 48 to 53. However, the correct value is given as 65, which is substantially higher than any of the measured values. This indicates that the measurements are not accurate; they are consistently lower than the correct value. In this case, the issue is not with outliers but with the accuracy of the measurements. The data consistently misses the mark, suggesting a systematic error or bias in the measurement process, leading to inaccurate evidence.
Suppose you have a population of 150 butterflies, but a wildfire devastates the population and only 24 butterflies survive. What percent does the colony decrease by?
Answer:
The colony decrease by [tex]84[/tex]%
Explanation:
Given -
Total population of butterflies before devastation (P) [tex]= 150[/tex]
Total Population of butterflies that survived after the devastation [tex]= 24[/tex]
Total population of butterflies that did not survived [tex]= P-p[/tex]
Substituting the given values in above equation, we get-
Total population of butterflies that did not survived [tex]= 150 -24[/tex]
Percentage by which the butterfly colony decreased [tex]= \frac{P-p}{P} * 100\\= \frac{150-24}{150} * 100\\= 84[/tex]%
Final answer:
The butterfly population decreased by 84% after the wildfire, calculated by dividing the decrease of 126 butterflies by the original population of 150 and then multiplying by 100.
Explanation:
To calculate the percent decrease in the butterfly population, we subtract the number of survivors from the original population to find the decrease in number, and then we divide that number by the original population and multiply by 100 to get the percentage. In this case, the original population was 150 butterflies and after the wildfire, only 24 survived.
The decrease in number is 150 - 24 = 126 butterflies. The percent decrease is (126 ÷ 150) × 100 = 84%. So, the butterfly population decreased by 84% after the wildfire.
name one organ in the body and explain its function.
The heart, its function is to plump blood to the rest of the body
Answer: The heart
Explantion in details: The heart is a muscular organ that can be found in most animals, it pumps blood through the blood vessels of the circulatory system.Blood provides the body with your oxygen and your nutrients, as well as helping in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest. Without the heart we will die within seconds because all blood is no loger being pumped out of it :)
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