A macrophage destroys a pathogen by phagocytosis. The correct answer is (d).
Macrophages are a type of white blood cell that engulf and destroy foreign particles, such as bacteria, viruses, and dead cells. They do this by extending their cell membrane around the particle and forming a vesicle called a phagosome.
The phagosome then fuses with a lysosome, which contains digestive enzymes that break down the particle. The macrophage then releases the digested material back into the bloodstream.
Antibodies are proteins that bind to specific antigens, which are molecules found on the surface of pathogens. Antibodies can help to destroy pathogens by marking them for destruction by other immune cells, such as macrophages. However, antibodies are not produced by macrophages.
Antigens are molecules that are found on the surface of pathogens. They can be recognized by the immune system, which then produces antibodies to bind to them. However, antigens are not produced by macrophages.
Histamine is a chemical that is released by mast cells and basophils, which are other types of white blood cells. Histamine can cause inflammation, which is a response to infection or injury. However, histamine is not produced by macrophages.
Therefore, the correct option is D, phagocytosis.
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A researcher samples the waters of the boiling hot springs in kinabalu national park. Under the microscope, she observes what appear to be living cells in the water. If these indeed are living cells, what type of cell would they most likely be?.
They are bacterial archaea. They are the prokaryotes, or prokaryotic organisms. These can survive in hostile environments, setting them apart from other bacteria. One domain of single-celled organisms is called the archaea. These microbes are prokaryotes because they lack cell nuclei.
What features are shared by bacteria and archaea organisms?What do the species belonging to the Archaea and Bacteria domains share? The organisms in both categories are prokaryotic, lack nuclei, and have free-floating DNA in the cell.
What traits do the domains of bacteria and archaea have in common that allow biologists to collectively refer to them as prokaryotes?These organisms are eukaryotes, which means that the nuclei of their cells are encased in membranes. Because their cells lack real nuclei and a membrane does not surround their genetic material, bacteria and archaea are both regarded as prokaryotes.
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the superior surface of the stomach fundus contacts the ______.
How should you test a hypothesis?
by writing a mathematical equation
by making a single observation
Oby performing a controlled experiment
by answering a series of questions
According to the question, You should test a hypothesis by performing a controlled experiment.
What does hypotheses mean in plain English?An assumption or concept is given as a hypothesis for the purpose of debating it and testing whether or not it is true. In the scientific process, the hypothesis is developed before any pertinent research—aside from a basic baseline review—has been undertaken.
Is a hypothesis an opinion or a fact?An opinion would be a statement that expresses a viewpoint that is unsupported by facts and cannot be proven (or has been tested). Typically, a hypothesis is a forecast supported by some kind of observation or evidence.
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What gas is needed for photosynthesis to occur ?
Carbon dioxide or the CO₂ gas is needed in order for the process of photosynthesis to occur.
Photosynthesis is the process by which a plant produces its own food. Photosynthesis basically requires sunlight, water and carbon dioxide gas to occur.
This process results in the formation of sugar known as glucose which is stored in the form of starch. Carbon dioxide (CO₂) is the gas which is used during photosynthesis and the gas which is emitted out as a result of photosynthesis is oxygen (O₂) which is breathed in by animals and used in respiration in order to produce energy and survive.
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Energy is not only stored in biomass. Some of it is used for biological processes. Which process produces offspring? give the scientific term.
Energy is not only stored in biomass. Some of it is used for biological processes. Which process produces offspring is called reproduction.
Energy is the power that is carried out to carry out an activity. Energy cannot be created but can be transferred and changed from one form to another. Plants use energy from sunlight to produce food through the process of photosynthesis which is then stored in the form of biomass. The energy then passes to other living things when plants are eaten by herbivores and so on.
Reproduction is the process of producing offspring that occurs when the egg and sperm fuse together to form a fetus. An energy source is needed in the sperm neck to be able to move actively during the fertilization process so that fertilization can occur. This is evidence that energy is necessary for the biological process of reproduction.
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an ion is a charged species, which means that there is a difference in the number of electrons to the number of protons
FALSE , Any charged atom or molecule is an ion. It has a charge because the atom or molecule's number of protons and electrons is not equal.
Are there any charged ions?Ionic species, in contrast to molecular dipoles, are defined by integral positive or negative charges connected to a specific atom or molecule. Ions are the named species that are charged. An atom is said to be an ion if its protons and electrons are distributed unevenly within it.
Ionic species: What does that mean?Ionized substances that are properly packed together and have the opposite charge make up ionic compounds. Metals and non-metals typically react to generate ionic compounds.
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the complete question is -
True or false? The charge of an ion or atom is equal to the number of protons minus the number of electrons.
A candy bar has a total mass of 2.5 ounces. In a calorimetry experiment, a 1.0 g sample of this candy bar was burned in a calorimeter surrounded by 1000 g
of water. The temperature of the water in contact with the burning candy bar was measured and found to increase from an initial temperature of 21.2∘ C to a final temperature of 24.3∘ C.
a. Calculate the amount of heat in calories released when the 1.0-g sample burned.
b. Convert the heat in calories to nutritional Calories and divide by the mass of the burned sample in grams to obtain the energy content (also called fuel value) in units of Calories per gram.
c. Multiply this value by the total number of grams in the candy bar to calculate the total calorie content of the candy bar in Calories.
The amount of heat in calories released when the 1.0-g sample burned is 101.5 J. the energy content in units of Calories per gram is 24.2 Cal/g. the total calorie content of the candy bar in Calories is 1710 Cal.
To calculate the amount of heat released when the 1.0-g sample of candy bar burned, we can use the equation:
q = mcΔT
where q is the heat released, m is the mass of the sample, c is the specific heat of water, and ΔT is the change in temperature of the water.
Using this equation, we have:
q = (1.0 g)(4.184 J/g·°C)(24.3°C - 21.2°C)
q = 101.5 J
To convert the heat in calories to nutritional Calories, we divide by 4.184:
q (Cal) = q (J) / 4.184
q (Cal) = 101.5 J / 4.184 J/Cal
q (Cal) = 24.2 Cal
To calculate the energy content in units of Calories per gram, we divide the heat in nutritional calories by the mass of the burned sample in grams:
Energy content (Cal/g) = 24.2 Cal / 1.0 g
Energy content (Cal/g) = 24.2 Cal/g
To calculate the total calorie content of the candy bar in Calories, we multiply the energy content per gram by the total number of grams in the candy bar:
Total calorie content = 24.2 Cal/g x (2.5 oz x 28.35 g/oz)
Total calorie content = 24.2 Cal/g x 70.87 g
Total calorie content = 1710 Cal
So the total calorie content of the 2.5 ounces candy bar is 1710 Calories.
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A student claims that he can correctly identify whether a person is a business major or an agriculture major by the way the person dresses. Suppose in actuality that if someone is a business major, he can correctly identify that person as a business major 87% of the time. When a person is an agriculture major, the student will incorrectly identify that person as a business major 16% of the time. Presented with one person and asked to identify the major of this person (who is either a business or an agriculture major), he considers this to be a hypothesis test with the null hypothesis being that the person is a business major and the alternative that the person is an agriculture major.
The statement that would be a Type I error is "saying that the person is an agriculture major when in fact the person is a business major". The correct answer is A.
A Type I error in a hypothesis test is when the null hypothesis (the assumption that the person is a business major) is rejected when it is actually true.
In this scenario, the student is presented with one person and is asked to identify the major of this person. If the student claims that the person is an agriculture major when in fact the person is a business major, this would be a type I error.
The question should be provided with answer choices, which are:
A. Saying that the person is an agriculture major when in fact the person is a business major.B. Saying that the person is a business major when in fact the person is a business major.C. Saying that the person is a business major when in fact the person is an agriculture major.D. Saying that the person is an agriculture major when in fact the person is an agriculture major.A is the correct answer.
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Muscle fibers are made up of bundles of fibers called?
One of the three important muscle tissues in the human body is found in the skeleton. Thousands of muscle fibres are encased in connective tissue sheaths to form each skeletal muscle. Fasciculi are the individual bundles of muscular fibres that make up skeletal muscles.
How are muscle fibres constructed?Myofibrils, which are made up of sarcomeres joined in series, make up muscle fibres. The arrangement of actin and myosin filaments, which results in the banding pattern of myofibrils, produces the striations of skeletal muscle.
What are the names of cell bundles?the composition of muscle cells. Muscles are made up of bundles of solitary, sizable cells (referred to as muscle fiber's) that join together by cell fusion and have many nuclei.
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20 pointsssss!!!!!!!!!
The box that represents the product of the reaction given in the above image is image D (option D).
What is the law of conservation of mass?The law of conservation of mass states that the total mass of a closed system remains constant regardless of the chemical or physical changes that take place within it.
The law states that matter can neither be created nor destroyed, meaning that in a chemical reaction, the amount of reactants must equate the amount of products.
According to this question, the reactant of a reaction contains 3 yellow, 3 red and 4 blue balls. Box D shows the products with this same color combination.
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A truck and a trailer weigh 4000 kg EACH. In order to accelerate at 2 m/s2, how much force would need to be produced?
Answer: Force needed to be produced=16000[N].
Explanation:
The formula for Force needed to be produced: F= ma [where F is the force acting on an object is equal to the mass [m] of an object times its acceleration[a].
So, F=ma,
F= [4000+4000]x2= 16000 [N].
Answer:
Explanation:
Given data weight of truck and trailer=4000kg(m)
Acceleration = 2m/s2
From the Newton 2nd law
Force=mass(m)*acceleration(a)
f=4000*2
f=8000 newtons
f=8kilo newtons
What does Wilson say are the goals of the United States?
If the United States won World War I, President Wilson assured the American people, it would be the last war ever. Making the world a safer place for democratic governments was one of the United States' other wartime objectives.
Turkey, Austria-Hungary, and Germany all had authoritarian regimes. President Woodrow Wilson urged people to act and think impartially toward the war that had just started in Europe. Wilson wished for the United States to serve as an example of the democratic commitment to peace, but "The Great War" repeatedly called into question the country's neutrality. America joins the conflict, the peace plan of Wilson. Wilson believed that American involvement in 1917 would guarantee that the country would take the lead and rule.
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These question are True or False questions.
Wobblers Syndrome is caused by the vertebra pinching the spinal cord.
The Axial skeletal system is comprised of the rear and forelimbs.
Ossification is the process in which cartilage and tissue becomes bone.
The first two statements in the above sentence are untrue, whereas the third one is.
What is ossification?Direct bone or skeleton ossification refers to the process of creating bones. Beginning between the fourth and fifth stages of embryonic stages and continuing until about age 25, but even this varies slightly between person to person. Intramembranous and endochondral bone ossification are the two forms.
Each of these procedures begins with a mesenchymal tissue precursor, but they vary based on how that major contributor transforms into bone. Intramembranous ossification, which converts mesoderm tissue directly into bone, generates the flat components of the brain, neck, and most of the cranial bones. Endochondral ossification, which starts with mesenchymal tissue changing into an early variety of cartilage and is finally replaced by bone, is the process by which the axial skeleton and bone are produced.
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What makes aquatic biomes
different is the salt content of
the water. What is the salt
content in most marine biomes?
A. 3%
C. 10%
B. 5%
D. 1%
A large array of aqua biomes can be made based on the salinity of the water. Ponds, lakes, streams, rivers, & wetlands are all types of freshwater biomes, with less than 1% salt content.
What is the most basic explanation of biomes?
An place is categorized as a biome based on the species that call it home. Scientists can identify a biome by defining the maximum temperature, soil type, quantity of light, and rainfall that are peculiar to a location and create opportunities for particular animal.
What are biomes and why are they significant?
Since they belong to the certain locations or districts that, because of their physical peculiarities, share a climate, vegetation, and wildlife, biomes provide the primary support for the harmony of nature. A biosphere can include a range of environments because the word "biome" is more general than "habitat."
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What is an r-selected species?
Answer: R-selected species are organisms that have a high reproductive rate and produce many offspring, but with a lower likelihood of survival. These species tend to live in unpredictable environments where resources are limited, and populations can fluctuate greatly. Examples of r-selected species include insects, annual plants, and some small mammals.
Explanation:
A buoy bobs up and down in the ocean. The waves have a wavelength of 2.5 m, and they pass the buoy at a speed of 4.0 m/s. What is the frequency of the waves?
The frequency of the waves is 1.6 Hz. The frequency of a repeated event is its number of instances per unit of time.
How do you determine a wave's speed?Wave speed and wavelength are related by the equation Speed = Wavelength x Frequency. The wave speed can be determined using this equation if the wavelength and frequency are known. The number of waves that travel each second is known as the wave frequency.
What is a simple definition of wavelength?A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).
Given:
Wavelength, λ = 2.5m
Speed, v = 4.0 m/s
Frequency, f = ?
Speed v = f X λ
f = v/λ
[tex]f= \frac{4.0m/s}{2.5m}[/tex]
[tex]f=1.6Hz[/tex]
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A cell taphylococcu aureu wa introduced into a medium, calculate the number of cell after the fourth generation. If the generation time of the the organim i 10 minute what time willl it take to reach the ixt generation
The time it takes to reach the sixth generation would be 60 minutes.
Cell Count and Generation TimeIt is not possible to calculate the number of cells after the fourth generation without additional information such as the initial number of cells and the growth rate of the organism.
To calculate the time it would take to reach the sixth generation, you would multiply the generation time of the organism (10 minutes) by the number of generations desired (6).
Formula:
Generation time x Number of generations = Total time
10 minutes x 6 generations = 60 minutes
So, it would take 60 minutes to reach the sixth generation.
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What is cell by value?
Cell by value is a type of cell referencing in which the value in a cell is used as a reference in a formula or other calculation. It refers to the value in a cell, as opposed to the cell address.
Cell by value is an important concept in Excel and other spreadsheet software. It allows users to create dynamic formulas and calculations that can be easily adjusted depending on the value of a particular cell. This type of referencing allows for data to be more easily manipulated and organized.
Additionally, it allows for complex calculations to be easily handled. For example, a formula can be adjusted automatically if the value of a particular cell changes. This makes it easier to create dynamic spreadsheets with changing data. It also allows users to easily reference data from other sheets or documents.
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How many moles are in a sample of 4. 57 x 1024 atoms of neon (ne)? 7. 59 mol ne 27. 5 mol ne 91. 4 mol ne 151 mol ne.
The number of moles of Ne in a sample of 4.57 x 10²⁴ neon atoms (Ne) is 7.59 mol Ne.
To calculate the moles of Ne atoms, the Avogadro number constant is used. Avogadro's number states that in one mole of a substance, there are 6.02 x 10²³ particles.
Atomic moles of Ne are as follows:
Number of molecules = moles × L (Avogadro's Number)
4.57 × 10²⁴ = moles × 6.02 × 10²³
moles = 4.57 × 10²⁴ / 6.02 × 10²³
moles = 0.759 × 10 moles
moles = 7.59 moles
So, moles neon atom is 7.59 moles.
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Determine whether each label describes water-soluble or fat-soluble vitamins.
Vitamins that are stored mostly in the liver and fatty tissues
Vitamins that include the B vitamins and vitamin C
Vitamins that travel as part of chylomicrons through the bloodstream
Vitamins that are easily lost during food processing and preparation
Fat-soluble :
Water-soluble :
Fat soluble vitamins are: Vitamins that are stored mostly in the liver and fatty tissues; and Vitamins that travel as part of chylomicrons through the bloodstream. Water soluble vitamins are: That include the vitamin B and C; and those are easily lost during food processing and preparation.
Vitamins are the organic compounds that are required in minute quantities by the body and hence are classified as micronutrients. There are 6 main types of vitamins required by the body: A, B, C, D, E and K.
Chylomicrons are the lipoproteins that acts as a transporting molecule for the transport of triglycerides and the cholesterol that are absorbed from the intestine to the target cells.
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Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?conclusionexperimenthypothesisprediction
The term "hypothesis" refers to a speculative explanation or response to a scientific topic that is based on existing information or study and is amenable to testing.
A hypothesis is a theory put up to explain a fact. A hypothesis must be testable according to the research methodology for it to be considered a research hypothesis. Research hypotheses are typically based on prior findings that can't be clearly addressed by the current body of knowledge.
Research is a planned investigation process that includes information gathering, recording of crucial data, evaluation, and interpreting of that data and information in following appropriate procedures established by particular academic and vocational disciplines. Without desire and inquiry, development would stall, and life as we understand now might be completely opposite.
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Activity 10.2 How do C3, C., and CAM photosynthesis compare?
1. Carbon dioxide enters plant leaves through the stomata, while oxygen (the photosynthetic waste product) and water from the leaves exit through the stomata. Plants must constantly balance both water loss and energy gain (as photosynthesis). This has led to the evolution of various modifications of Cg photosynthesis.
Draw simplified diagrams of the cross sections of a leaf from a C3, a C. and a CAM plant.
C3; CA; CAM
C3 plants fix carbon dioxide directly into a three-carbon compound, C4 plants have specialized cells that fix carbon dioxide into a four-carbon compound, and CAM plants fix carbon dioxide into a four-carbon compound at night, which is then converted into glucose during the day.
C3 photosynthesis is the most common type of photosynthesis and is found in most plants. In C3 photosynthesis, carbon dioxide enters the leaf through the stomata and is immediately fixed by the enzyme RuBisCO into a three-carbon compound. This process is called the Calvin-Benson cycle, and it takes place in the chloroplasts. The oxygen produced is released through the stomata.
C4 photosynthesis is an adaptation found in plants that live in hot and dry environments. These plants have specialized cells called bundle sheath cells that surround the vascular bundles in the leaf. These cells have a high concentration of RuBisCO and other enzymes that help to fix carbon dioxide into a four-carbon compound. This four-carbon compound is then transported to the chloroplasts, where it is converted into glucose. This process helps to prevent photorespiration and increases the efficiency of carbon fixation.
CAM photosynthesis is an adaptation found in plants that live in hot and dry environments. These plants have specialized cells called bundle sheath cells that surround the vascular bundles in the leaf. These cells have a high concentration of RuBisCO and other enzymes that help to fix carbon dioxide into a four-carbon compound. This four-carbon compound is then transported to the chloroplasts, where it is converted into glucose. This process helps to prevent photorespiration and increases the efficiency of carbon fixation.
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_____ Each of the following is typical of normal urine EXCEPT:
A) slightly acidic.
B) yellow color.
C) translucency.
D) mild odor.
E) all are correct for normal urine
F) none is correct for normal urine
the ______ are designed for slicing or cutting into food.
The Incisors are designed for slicing or cutting into food.
The term "incisors" refers to the four front teeth in both the upper and lower jaws. Cutting food is their main duty. The term "central incisors" refers to the two incisors on either side of the midline. The two teeth directly across from the central incisors are referred to as the lateral incisors. The front of your mouth is where your eight incisor teeth are situated. There are four in your lower jaw and four in your upper jaw. Incisors resemble tiny chisels in shape.On both the upper and lower jaws, the incisors are the center four teeth. They are utilized for gripping, chopping, and tearing food. An incisor's biting edge has a chisel-like shape due to its wide and thin construction. The canines (also known as cuspids, whichTo know more about Incisors here
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What is natural selection the process through which organisms?
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
What is natural selectionNatural selection is the difference in the ability to live and reproduce from an individual that is caused by differences in the suitability of the organism's phenotype with the environment. This is a key mechanism of evolution, changes in characteristics that are passed on from generation to generation. Charles Darwin is the person who popularized the term "natural selection" and compared it to artificial selection, which he thought was intentional, while natural selection was not.
Variation exists in all populations of organisms. This happens due to random mutations that appear in the genomes of individual organisms, so that their offspring can inherit these mutations. Throughout the life of an individual, its genome will interact with its environment causing populations variations in traits. The genomic environment includes cell chemistry, other cells, other individuals, populations, species, and the abiotic environment. This environment will determine which genome changes will be beneficial and which will be detrimental.
Because individuals with a trait variant that is favorable to their environment tend to survive and reproduce more than individuals with another variant that is less favorable, the population for that trait variant grows. Other factors that influence reproductive success include sexual selection (now often included in natural selection) and fecundity selection.
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Comparing the glenohumeral and femoroacetabular joints:
O the femoroacetabular joint has a larger labrum.
O the glenohumeral joint allows more types of movements.
O the femoroacetabular joint is more likely to dislocate.
O the glenohumeral joint has a deeper socket.
Comparing the glenohumeral and femoroacetabular joints is that the glenohumeral joint allows a wider variety of movements.
What is a joint?Joints are places where two or more bones meet. There are 22 joints in the human body. Joints allow movement to occur. The glenohumeral joint is the most widely movable joint in our body. Glenohumeral joints include bullet joints with very shallow joint cups.
This joint has 3 degrees of freedom which allows it to move in all three planes of motion. The amount of joint mobility is detrimental to stability. The glenohumeral joint is located between the superior angles of the scapula, which is halfway between the acromion and the coracoid process.
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Help me please I need this soon
15. Meiosis II occurs to reduce the number of chromosomes and become gametes.
16. False, chromosomes do not form pairs in prophase II.
17. True, sister chromatids split up in anaphase II.
What happens in anaphase II?Sister chromatids separate and are pulled to opposite poles of the cell during anaphase II. At the centromere, the chromatids split. They are then referred to as non-replicated chromosomes. Spindle fibers transport chromosomes to the poles. Each pole receives 23 chromosomes.
Since meiosis generates cells that will become gametes (or reproductive cells), this reduction in chromosome number is critical; without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes.
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Farmers often repair
equipment themselves for
which of the following
reasons?
A. It's more time and cost effective to
do it yourself.
B. They can't be sure of repair work
done by others.
C. They have extra time during the
winter months.
Answer: B
Explanation:
Answer:
A. It's more time and cost effective to do it yourself
Which monomer is most commonly found covalently linked together in long chains to store carbohydrates for later use?
A polysaccharide is a lengthy chain of monosaccharides joined by glycosidic linkages. The chain may have different kinds of monosaccharides and may be unbranched or branched.
How do changes in the genes affect the way proteins are made?Gene variations, often known as mutations, can occasionally make one or more proteins unable to function properly. A variation can alter a gene's instructions for producing a protein, which can result in a malfunctioning protein or no protein at all.
What is the name for the gene changes?Gene mutations are long-lasting changes to the DNA gene structure. They may appear during typical DNA replication or in reaction to outside influences. Gene mutations can fall into numerous categories. Disease is caused by specific mutations.
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How the un' poition in the ky would change the direction of your hadow if you were to tand in the ame place all day?
Since the Earth is pivoting, the daylight radiates on objects from various headings as the day heads on. This makes the sizes and states of shadows change.
The place of the sun overhead would redirect our shadow if we somehow happened to remain in a similar spot all day in light of the fact that the sun moves with the progression of time. The sun ascends in the east so around then our shadow is framed towards the west side and begins diminishing when the sun arrives high overhead.
At the point when the sun comes to the highest point of our head, then, at that point, no shadow is framed and when the sun set happens the length of the shadow again diminishes so we can say that the size of the shadow changes as the sun changes its situation.
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