The structure of a bone cell are osteoblasts, osteocytes, osteoprogenerators, and osteoclasts.
Movement is a response to stimulation from both inside and outside. Movement in humans is caused by muscle contractions that move the bones so that the bones themselves are often called passive locomotors because they can only move with muscle contractions.
Bones are divided into two types based on the constituent tissues, namely cartilage and osteons. Cartilage consists of cartilage cells that produce a matrix called chondrine. While bone osteons are hard, the framework consists of osteoblasts, namely young bone cells that will form osteocytes. osteocytes are mature bone cells, osteoprogenerators are specialized cells derived from mesenchyme, and osteoclasts are cells that develop from monocytes.
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What type of bond forms between the oxygen and hydrogens in a single molecule of water?.
In a single water molecule, a hydrogen bond is formed between the oxygen and hydrogen atoms.
Water has the capacity to stick to both other things and to itself. Water's propensity to attract other water molecules is known as its cohesion, and this trait is what makes water a "sticky" liquid.
Since certain hydrogen ions are somewhat positively charged and others are slightly negatively charged, hydrogen bonds are electrostatic forces that attract one another. Between adjoining hydrogen and oxygen atoms of adjacent water molecules, hydrogen bonds occur in the case of water. A hydrogen bond, sometimes referred to as an attraction bond, is made when two water molecules come into contact.
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during telophase what is happening to the genetic material of the cell
The fifth and final stage of mitosis, known as telophase, is when a parent cell's replicated genetic material is split into two identical daughter cells. Once the duplicated, paired chromosomes have been split apart and brought to the cell's poles, or opposite sides, telophase has begun.
To isolate the nuclear DNA from the cytoplasm, a nuclear membrane develops around each set of chromosomes during telophase. The chromosomes start to uncoil, becoming less compact and dispersed. The cell goes through a process known as cytokinesis, which separates the cytoplasm of the parental cell into two daughter cells, along with telophase.
What is mitosis?
When a single cell (the mother) divides into two genetically identical daughter cells, this process of cell division is known as mitosis. The phase of cell division known as mitosis, when referring to the cell cycle, is when the DNA in the cell's nucleus is split into two identical sets of chromosomes.
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What are the three types of RNA and what are their roles in transcription and translation?
Here are the three main types of RNA are:
mRNA (messenger RNA): Provides a template for protein synthesis during translation.
tRNA (transfer RNA): It brings amino acids and reads the genetic code during translation.
rRNA (ribosomal RNA): It plays a structural and catalytic role during translation.
RNA performs a wide range of functions, from translating genetic information into the molecular machinery and structures of cells to regulating gene activity during development, cell differentiation, and environmental changes. Each of the three types of RNA has a unique function and a different structure. The mRNA provides the gene-coding template during protein synthesis, the tRNA carries the amino acids that need to be attached to the polypeptide chain to the ribosome, and the rRNA binds the protein to form the ribosome.
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1. identify two reasons why maria may have tissue ischemia. how might this lead to hypoxia? pathophysiology joyce university
Two reasons why Maria has tissue ischemia are circulatory disorders and edema. This can lead to hypoxia due to the inability of oxygenated blood to reach the tissue cells.
Tissue ischemia is a lack of blood flow to certain organs of the body which causes these organs to lack oxygen. Reduced oxygen flow in the blood can inhibit the metabolism of cells that need oxygen, because of that ischemia that occurs in the brain, heart, stomach, or limbs can be fatal.
Ischemia can occur due to edema and air circulation disorders. Edema that occurs due to the accumulation of fluid in the body parts causes the body parts to swell so that air can be obstructed. Edema usually occurs due to sitting or standing for too long. If edema occurs in the lungs, this can affect the circulation of blood flow so that oxygen that is carried to the tissues will decrease and inhibit cell metabolism.
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produces the hormones that are stored in the posterior pituitary
The hormones secreted via way of means of the posterior pituitary are produced withinside the hypothalamus.
After the hormones are exceeded down a tube among the hypothalamus and the pituitary (the pituitary stalk) while they're then secreted into the blood. The hormones of the posterior pituitary, oxytocin and vasopressin, are for the maximum element synthesized in character hormone-precise magnocellular neurons, despite the fact that a small range of neurons (about 3%) explicit each peptides. The posterior pituitary shops hormones, antidiuretic hormone and oxytocin, which might be produced withinside the hypothalamus.
Thus, the hormone is known as hypothalamus.
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_____ is a cell structure that performs a specific function.
Answer:
An organelle
Explanation:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
Which type of selection is shown when breeders used selection to grow plants and produce animals with their desired characteristics?
Artificial selection is the identity through human beings of proper developments in flora and animals, and the stairs taken to decorate and perpetuate the ones developments in destiny generations.
Natural selection is pushed through environmental elements that restrict survival and reproduction, including harsh environments or opposition for mates. Selective breeding is likewise called synthetic selection. Artificial selection is pushed through human intervention. Artificial selection, additionally called "selective breeding”, is wherein human beings pick for proper developments in agricultural merchandise or animals, instead of leaving the species to conform and change steadily with out human interference, like in herbal choice.
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which endocrine gland is housed in the sella turcica of the sphenoid bone?
The sella turcica of the sphenoid bone is home to the pituitary gland, an endocrine gland.
The pituitary gland, also known as the hypophysis cerebri, is an important part of the human body because it carries out key tasks for maintaining life. It goes by the alias "the master gland." The sphenoid bone's sella turcica contains the gland's position.
The pituitary gland and distal end of the pituitary stalk are located in the sella turcica, a midline depression in the sphenoid bone.
Because it regulates the operations of many other endocrine glands, the pituitary gland is sometimes referred to as the "master" gland of the endocrine system. At the base of the brain, the pituitary gland, which is about the size of a pea, is situated.
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ITS SCIENCE AND PLEASE HELPPPP ASAP ILL GIVE BRAINLYIST
Which has greater momentum, a car or a truck if both are moving at the same velocity? Why?
A truck has a greater momentum because the mass of the truck is extremely higher than that of the car while as per the question, velocity remains the same.
What is momentum?Momentum may be defined as the quantity of motion of the body with respect to time. It is the product of the mass and velocity of an object. It is a vector quantity as it typically possesses a magnitude and a direction.
The momentum is calculated with the help of the following formula:
Momentum = Mass × Velocity.If the value of the mass increases, the momentum increases. This is because it is the absolute product of the mass to the velocity. It is clearly given in the question, that both truck and car moving at the same velocity. So, now, only mass is the differential factor.
Therefore, a truck has a greater momentum because the mass of the truck is extremely higher than that of the car while as per the question, velocity remains the same.
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Which of these is a threat to the survival of an ecosystem?answer choicespredator-prey population cyclesless biomass at higher levels of the food webshrinking variety of animal and plant speciescompetition among some consumer populations
An ecosystem is a region where different species of plants, animals, and other organisms coexist in harmony with the environment, including the climate and geography.
What is Ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors.
Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
Every component of an ecosystem is directly or indirectly dependent upon every other component. An ecosystem's temperature changes frequently have an impact on the types of plants that may flourish there, for example.
Therefore, An ecosystem is a region where different species of plants, animals, and other organisms coexist in harmony with the environment, including the climate and geography.
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Classify weathering by salt crystallization in a rock.
chemical biological
mechanical
chemical
mechanical biological
The type of weathering by salt crystallization in a rock materials is known as chemical weathering and is therefore denoted as option C.
What is Weathering?This is referred to as the process of breaking down or dissolving of rocks and minerals on the Earth's surface and there are many types such as chemical, mechanical weathering etc.
Chemical weathering is referred to as the process in which rock breaks down after they have combined with organic material to create soil and in this process we were told that salt crystallization occurred which may have been as result of saline water seeping into cracks and evaporates depositing salt crystals thereby making it the correct choice.
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What is the role of mRNA in protein synthesis Mcq?
The role of mRNA in protein synthesis is to carry DNA-encoded information to the cytoplasm.
Messenger RNA provides the genetic blueprint for proteins. Transfer RNA is responsible for translating the triplet code into specific amino acids during protein synthesis.
The role of mRNA is to carry protein information from DNA in the nucleus of the cell to the cytoplasm (watery interior) of the cell. Here, the proteinogenic machinery reads the mRNA sequence and translates each triplet amino acid codon into the appropriate protein chain.
The genetic information required to produce proteins is carried by mRNA molecules. They carry information from DNA in the nucleus to the cytoplasm where proteins are made.
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ligament in the hip checks posterior pelvic tilt and its strength and stability help limit anterior migration/dislocation of the femoral head?
The iliofemoral ligament is the primary ligament that checks posterior pelvic tilt and helps limit anterior migration/dislocation of the femoral head.
The iliofemoral ligament is a strong, Y-shaped ligament that originates from the anterior inferior iliac spine and inserts into the femoral neck. This ligament is responsible for providing stability to the hip joint, allowing for normal joint movement.
The iliofemoral ligament is the primary ligament responsible for limiting anterior migration/dislocation of the femoral head and checking posterior pelvic tilt. This ligament is a strong, Y-shaped ligament that originates from the anterior inferior iliac spine and inserts into the femoral neck. It is responsible for providing stability to the hip joint, allowing for normal joint movement.
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The pressure exerted by the left ventricle must push blood where?
a. To the body
b. To the lungs and back to the left atrium
c. To the lungs and back to the right atrium
d. To the aorta only
The pressure exerted by the left ventricle must push blood to the body.
The left ventricle must similarly contract quickly and forcefully during the systolic phase to force this blood into the aorta and overcome the significantly higher aortic pressure. In order to accommodate the increase in blood volume, more pressure must be applied in order to expand the aorta and other arteries.
The ventricles contract during systole, pumping blood throughout the body. The ventricles relax and refill with blood during diastole. The left ventricle gets oxygenated blood from the left atrium via the mitral valve and pumps it into the systemic circulation via the aortic valve.
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What causes chest pain between breasts?
Chest pain located between the breasts can be caused by several different things, some of which include Costochondritis, Gastroesophageal reflux disease, and Heart-related issues.
Costochondritis: Inflammation of the cartilage that connects the ribs to the breastbone (sternum), which can cause sharp pain in the chest. Musculoskeletal pain: Strained or pulled muscles or ligaments in the chest wall can cause chest pain.
Gastroesophageal reflux disease (GERD): Stomach acid flowing back into the esophagus can cause chest pain, which is often felt behind the breastbone or in the middle of the chest. Panic attacks: Sudden onset of intense fear or anxiety can cause chest pain, shortness of breath, and palpitations.
Heart-related issues: Angina or a heart attack can cause chest pain, but it's usually located on the left side of the chest, and often radiates to the left arm, shoulder, jaw, or back. Lung issues: Pneumonia, pleurisy, or pulmonary embolism can cause chest pain.
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which of the following statements is true? in photosynthesis, oxygen, carbon dioxide, atp, and nadph are reactants. g3p and water are products. in photosynthesis, chlorophyll, water, and carbon dioxide are reactants. g3p and oxygen are products. in photosynthesis, water, carbon dioxide, atp, and nadph are reactants. rubp and oxygen are products. in photosynthesis, water and carbon dioxide are reactants. g3p and oxygen are products.
In photosynthesis, water and carbon dioxide are reactants. G₃P and oxygen are products. is the true statement. the correct answer is E.
The statement is true because In photosynthesis, water and carbon dioxide are reactants. G₃P and oxygen are products. Photosynthesis is the process by which plants, algae, and some microorganisms use sunlight to change carbon dioxide and water into sugar and oxygen. The procedure chemically transforms water and carbon dioxide into food (sugars) and oxygen.
Photosynthesis equation:
6 CO₂ + 6 H₂O + light → C₆H₁₂O₆ + 6O₂
two three-carbon G3P molecules, A product of photosynthesis forms the building block for the Glucose or carbohydrates formed in photosynthesis
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individuals who express which genetic feature, female or male, are more likely to experience x-linked diseases?
Males lack the second X-chromosome that females have; instead, they have a Y chromosome that does not reflect the same alleles as the X chromosomes, making it impossible for them to hide the X-linked recessive gene.
An X-linked recessive condition, haemophilia. Let the mutant allele be denoted by the letter Xh and the normal allele by the letter XH. Here,
Male haemophilia = XhY
Female haemophiliac = XhXh
The punnett square will be as follows when XhY X XhXh:
Xh Y
Y Xh XhXh Xh
Y Xh XhXh Xh
Due to the fact that just the Xh allele was handed on by both parents, the entire progeny will be hemophilic.
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The vascular tissue of dead tubular cells joined from end to end that transports water and dissolved minerals from the roots upwards to the rest of the plant is called the _______.
xylem
The term "xylem" refers to the vascular tissue made up of dead tube cells linked end to end that carries water and dissolved minerals from the roots to the rest of the plant.
From the roots up to the rest of the plant, what vascular tissue made of dead tube cells linked end to end delivers water and dissolved minerals?In addition to providing structural support, the vascular tissue of plants, known as xylem, distributes water and dissolved minerals from the roots to the rest of the plant.
What is the name of the tissue in the vascular system that carries water and minerals from the soil to the roots, stems, and leaves?Xylem is a form of vascular tissue that travels through stems and branches to carry water and minerals from roots to leaves.
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Which would be the most accurate tittle for this picture
Answer: woop
Explanation:
Please help ,
EXTRA POINTS‼️‼️‼️
The answers for the given cell cycle and check point:
DHFCLBJEGKAIWhat are the answers for the given questions?The chromosomes are all lined up at the center of the cell by the spindle during metaphase, ready to divide.Telophase is the fifth and final phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells.Nuclear envelope collapse, or the disintegration of the nuclear envelope, takes place during prophase in higher eukaryotic cells.DNA replication causes the development of two identical sister chromatids for each chromosome, which are firmly connected at the centromere region during the S phase.A process known as DNA replication is used by a cell to copy its chromosomal DNA after every cell division. In the S phase, DNA is replicated, and in the M phase, the replicated DNA strands are precisely distributed to the two daughter cells.At the G2 checkpoint, the cell checksThe G1 checkpoint is situated just before the changeover to S phase, at the conclusion of G1 phase.Because of its spatial arrangement into tightly packed higher-order structures, chromatin condenses to a smaller volume.The centromere separates during anaphase, allowing the sister chromatids to divide.In the event that there were mistakes in the DNA replication during the S phase, the G2 checkpoint is employed to stop the cell from initiating mitosis.As a result of cytokinesis, animal cells develop cleavage furrows.To know more about chromosomes, visit:
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Why viruses Cannot reproduce outside a living cell class 9?
Because these creatures lack their own metabolic system, viruses cannot multiply outside of the host. Viruses lack the cytoplasm and reproduction-related enzymes.
Viruses cannot reproduce unless they are taken up by our body's cells. Once a virus leaves the body, its capsid begins to deteriorate, and the more deteriorated it is, the less chance it has of surviving. These capsids deteriorate more quickly in cold, dry settings when they are outside the body.
Because they lack the cellular organization and independent machinery necessary for reproduction and other metabolic activities, viruses cannot proliferate outside of a living cell. They are reliant on the cellular machinery of the host to reproduce solely inside the live cell of the host.
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Which of the following is a description of directional selection?
A. The birth weight at which newborn humans are most likely to survive and the average weight of newborn humans are about the same.
B. There is an increase in antibiotic-resistant strains of bacteria.
C. Garter snakes with different coloration patterns behave differently when threatened.
D. A catastrophe wipes out nearly 99% of a population
Option B, which describes directed selection as a rise in antibiotic resistance. When a certain feature or attribute becomes more or less common in a population, this is known as directional selection.
For instance, the number of bacterial strains that are resistant to antibiotics is rising in B. Due to the fact that bacteria with the resistance trait thrive and procreate more readily in the presence of antibiotics, transferring the resistance trait to their progeny, directional selection is the result. Directional choice The percentage of microorganisms that are resistant to antibiotics rises with time. When a certain feature or attribute gradually becomes more or less widespread in a population as a result of natural selection, this is known as directional selection. One illustration is the rise in bacterium strains that are resistant to antibiotics, where those possessing the characteristic survive.
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Where does mitosis or cell division of the skin take place?
Mitosis or cell division of the skin take place in stratum basale/germinativum.
Our skin cells and other body cells divide daily to replace dying cells. When this happens, the new cell has the same amount of chromosomes and organelles.This process is called mitosis.
The basal layer is one of the most important layers of the skin. This is because it contains the only cells in the epidermis that can divide during the process of mitosis. This means that it is where the skin cells germinate, hence the word germ. The stratum basale, also known as the germinal layer, is the deepest layer and is separated from the dermis by a basement membrane (basement membrane) and attached to the basement membrane by hemidesmosomes.
The basal layer is Latin and is translated as the germ layer. This layer is composed of sprouting (or basal) keratinocytes. These cells actively divide to provide new cells to replenish the skin lost through normal shedding.
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microvilli are found on cells of the inner surface of the small intestine, where they
Microvilli are found on cells of the inner surface of the small intestine, where they increase the absorption of nutrients from the digested tract.
Microvilli increase the surface area of absorption in the intestine as they have very large surface area and due to absorption they increase the efficiency of uptake of nutrition in the blood. Every cell lining the small gut bristles with heaps of tightly packed microvilli that challenge into the intestine lumen, forming a broom border that absorbs vitamins and protects the frame from intestinal bacteria. Microvilli are finger-fashioned plasma membrane protrusions which are observed on the floor of a huge kind of cell kinds however are maximum severe and elaborated on easy epithelial, for example, intestinal mucosa and the epithelium of the kidney proximal tubule.
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Complete question:
Microvilli are found on cells of the inner surface of the small intestine, where they
sense the presence of food in the digestive tract.
protect the intestinal lining from irritants or toxins in the food.
increase the absorption of nutrients from digested food.
slow the movement of food through the digestive tract.
push food along the digestive tract.
Consider the chromosome. The parts of a chromosome are labeled. The lines on the chromosome are labeled b. Which best describes the function of the part labeled b?.
Genes are located on many chromosomes. In other words, a particular section of the genome is located on each chromosome.
The primary function of the chromosomes is to transfer DNA, the fundamental component of genetic material. The genetic instructions for numerous biological functions are encoded in DNA.
Chromosomes, which resemble threads, are located in the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA).
These processes are necessary for the development, maintenance, and procreation of the organisms. Proteins like histones, which protect the chromosomes.
Therefore, DNA is passed down from parents to children and contains the precise instructions that give each sort of living thing its individuality.
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How are bone cells arranged?
The cells in spongy bone are arranged in a looser, more open network, whereas those in compact bone are arranged in multiple microscopic columns.
Osteons or haversian systems are tightly packed in compact bone. The osteon is made up of a central canal known as the osteonic (haversian) canal. This canal is surrounded by matrix in the form of concentric rings (lamellae). Lacunae are the spaces where osteoclasts (bone cells) are situated within the rings of matrix.
Little channels (canaliculi) transmit from the lacunae to the osteonic (haversian) trench to give way through the hard framework. The haversian systems in compact bone are packed tightly together to create what appears to be a solid mass. Blood vessels run parallel to the long axis of the bone in the osteonic canals. Through perforating canals, these blood vessels connect with vessels on the surface of the bone.
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series of events in which a cell grows, prepares for division, and divides to form two daughter cells
Answer: Mitosis
Explanation: Pretty simple. These are the steps to it.
how is the female reproductive system of a frog different from a human?
The reproductive system of a female frog differs from that of a human in a number of ways. Frogs reproduce via external fertilization, as opposed to humans, who reproduce internally through sexual intercourse.
A female frog has two ovaries that contain her reproductive cells, or ova, which are released into her body cavity near the kidneys and then picked up by the oviducts, the organs responsible for transporting the ova outside of the body.
Humans, on the other hand, have a much more complex reproductive system consisting of the uterus, ovaries, fallopian tubes, cervix, vulva, and vagina. The ovaries in humans are responsible for producing and releasing the female reproductive cells, or ova, which travel along the fallopian tubes and to the uterus, the organ where the fertilized egg implants and develops into a baby.
In addition, frogs have a cloaca, a single opening that serves as the exit for the digestive, reproductive, and urinary systems, while humans have separate openings for each of these systems.
Finally, female frogs lay their eggs in the water, while humans give birth to live babies, further distinguishing the two species' reproductive systems in terms of both structure and function.
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If you were a farmer in ancient greece, to which god would you pray to ensure a successful harvest?
If you were a farmer in ancient Greece, you would likely pray to the god of agriculture and fertility, Dionysus or Demeter.
Dionysus was the god of wine and fertility and was believed to be responsible for the growth of grapes and other fruits. He was portrayed as a long-haired, effeminate young man or as an elderly, bearded god. His accessories were an ivy crown, a drinking cup, and a staff with a pine-cone tip called a thyrsos.
Demeter was the goddess of the harvest and fertility of the earth and was believed to be responsible for the growth of crops. She held a special place in the hearts of the Ancient Greeks, who produced the majority of their own food. Persephone, the sweet and lovely daughter of Demeter, was dearly adored by her. Like her mother, Persephone adored the outdoors.
Both gods were considered important figures in ancient Greek agriculture and were often invoked in prayers for a successful harvest.
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Which of the following can typically decrease genetic variation?
toxins
predator-prey relationships
competition
new habitat
disasters
Typically, the following can reduce genetic variation:
-toxins
-predator vs prey relationship
-competition
-New Habitat
-Disasters
What is genetic variation?The difference in DNA between individuals or between populations is referred to as genetic variation. Mutation and genetic recombination are two of the many sources of genetic variation. Although mutations are the ultimate source of genetic variation, other mechanisms such as genetic drift also contribute to it. The difference in DNA sequences between individuals within a population is referred to as genetic variation. Variation occurs in both germ cells (sperm and egg) and somatic (all other) cells. One source of genetic variation is mutations, which are changes in the sequences of genes in DNA. Gene flow, or the movement of genes between different groups of organisms, is another source. Finally, genetic variation can occur as a result of sexual reproduction, which results in the formation of new gene combinations.
Here,
Generally, the following can help to reduce genetic variation:
-toxins
-relationship between predator and prey
-competition
-new habitat
-natural disasters
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