The correct statement is B. The F₁ generation will have only plants with yellow seeds, but the F2 generation is likely to include both plants with yellow seeds and plants with green seeds.
The law of segregation states that the two alleles for a trait separate during gamete formation and end up in different gametes. In the F1 generation, the yellow allele masks the green allele, so all of the plants will have yellow seeds. However, in the F2 generation, the offspring will receive one allele from each parent during fertilization, so some offspring will have yellow seeds and some will have green seeds, reflecting the separation of the alleles.
what is the name given to the phenomenon in which some individuals with a particular genotype fail to display the corresponding phenotype? see section 4.2 (page 119
A specific geno-type with incomplete pene-trance will not show the associated phen-otype. Option (D) is correct .
What is a phenomena example?The definition of a pheno-menon is "observable occu-rrences that occur in a designed or natural system." We are surrounded by them all the time, although some are more obvious than others. Lightning, volc-anoes, tsun-amis, volcanic erupt-ions, torn-adoes, & similar events are typical examples of natural occurrences.
Do phenomena actually exist?In a technical environment, an occurrence is something that has seen to happen or happen. Simply said, it is a fact or occurrence that can be seen with the na-ked eye or via the use of instruments like micr-oscopes or telescopes. This definition of phenomena is different from how people often use the word.
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The correct question is given below:
What is the name given to the phenomenon in which some individuals with a particular genotype fail to display the corresponding phenotype?
A Variable expressivity
B Pleiotropy
C Recessive lethality
D Incomplete penetrance
Which of the following statements about the skin's role as barrier to infectious microorganisms is false?
The melanocytes, which are the pigment-producing cells, have the capacity to ingest microorganisms.
Normal body surface temperatures are generally cooler than the 37 degrees Celsius required for microorganism growth.
Both these statements about the skin's role as a barrier to infectious microorganisms are false.
Melanocytes produce a pigment molecule, melanin, and form a chemical obstacle against UV for the defense of the skin. Melanin is synthesized in the melanocyte-specific organelle melanosome. Melanocytes are localized in the basal coating of the human epidermis. But they can't ingest microorganisms. Normal human body temperature span is found in humans. The normal human body temperature range is generally started at 36.5 - 37.5°C. Human body temperature differs. These bacteria can thrive at temperatures between 5°C and 60°C, which is understood as the temperature danger zone.
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fill in the blank. _____ performed trail-blazing split-brain studies.
Gustav Fritsch
Otfrid Foerster
Wilder Penfield
Michael Gazzaniga
The correct option is D ; Michael Gazzaniga ,Sperry and Gazzaniga tried to investigate the extent to which two parts of the human brain might work independently and whether or not they had different and unique talents in their experiment.
"The Split Brain in Man" published in Scientific American in 1967. Roger Sperry, a psychobiologist, established that humans have two minds. He discovered that the human brain has specific tasks on the right and left sides, and that the two sides may work almost independently.
When Gazzaniga and his colleagues flashed an image in front of a patient's right eye, the information was processed in the left side of the brain, and the split-brain patient was able to vocally describe the scene.
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Which of the following statements is false for the class of biological molecules known as lipids? A) They are an important constituent of cell membranesB) They are hydrophobiC) They are soluble in waterD) They can be saturated or unsaturated
Lipids are a class of macromolecules that are hydrophobic or nonpolar by nature. Waxes, phospholipids, steroids, or fats and oils make up the major subcategories.
Lipids are what kind of biomolecules?The fundamental units of the composition and operation of living cells are lipid molecules, which are hydrocarbon-containing molecules. Lipids contain things like fats, oils, waxes, some vitamins (including A, D, E, and K), hormones, and the majority of a cell membrane that isn't protein.
Which may be considered a characteristic of lipid found in living membranes*?Amphipathic (or amphiphilic) lipid molecules, which feature polar hydrophilic and nonpolar hydrophobic ends, were exclusively discovered in cell membranes. The majority of the lipids in membranes are phospholipids. These have polar head groups, hydrocarbon tails, and hydrophobic interactions.
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Forms of energy 1 There are many different forms of energy, including solar energy, chemical energy, and mechanical energy. For each description, decide which type of energy is being described and classify it accordingly. Answers are only used once. Energy obtained from the Sun Includes potential energy Used as fuel; provided by food eaten daily to support metabolic needs Ultimate source of energy for nearly every organism on this planet The energy of position or the position an object before it moves Energy stored in the bonds of carbohydrates, fats, and proteins Includes kinetic energy Solar Energy Chemical Energy Mechanical Energy Energy stored in the bonds of carbohydrates, fats, and proteins
Answer:
Energy obtained from the sun and ultimate source of energy for nearly every organism on the planet > solar energy
Used as fuel; provided by food eaten daily to support metabolic needs and energy stored in the bonds of carbohydrates, fats, and proteins > chemical energy
The energy of position or the position an object before it moves and includes kinetic energy and potential energy > Mechanical energy
fill in the blank. the___covers the two hemispheres and serves as the body's information processing center. please choose the correct answer from the following choices, and then select the submit answer button. answer choices cerebrum cerebral cortex reticular formation cerebellum
Answer: cerebral cortex
Explanation:
fill in the blank. reward centers have been discovered in specific regions of the____, which is located in the limbic system. please choose the correct answer from the following choices, and then select the submit answer button. answer choices reticular formation thalamus hippocampus hypothalamus
Certain parts of the limbic system's hypothalamus, which contains reward regions, have been uncovered.
A particular limbic circuit in the brain called the reward system is responsible for producing sensations of pleasure. This system begins with a cluster of neurons in the middle brain (called the ventral tegmental area, or vta). A mesolimbic dopamine system, which is made up of a VTA (ventral tegumental region) and NAc, is the most significant reward circuit in the brain (nucleus accumbens). This (VTA-NAc) circuit is a crucial reward stimulus detector.Certain parts of the limbic system's hypothalamus, which contains reward regions, have been uncovered. The limbic system, often referred to it as the paleomammalian cortex, is a group of brain structures that are largely found in the forebrain on both sides of the thalamus, just below the temporal lobe of the cerebrum.
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suppose that a team of researchers sets out to characterize a population of meadow flowers. identify whether each researcher is collecting data regarding a genetic polymorphism, a polyphenism, or a quantitative trait.
A researcher can collect data about polyphenism, genetic genetic and quantitative.
The explanation is given below:
A researcher is collecting data on the flower color of the meadow flowers: This is a polyphenism.A researcher is collecting data on the presence of a gene that determines flower color in the meadow flowers: This is a genetic genetic.A researcher is collecting data on the height of the meadow flowers: This is a quantitative trait.Polyphenisms are traits that are influenced by environmental factors, while genetic polymorphisms are variations in a gene within a population. Quantitative traits are those that can be measured and vary continuously, such as height or weight.
By characterizing the population of meadow flowers, the researchers can gain insights into the genetic and environmental factors that shape the traits of the flowers, and how these traits vary within the population.
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Based on the diagram, which structures distinguish that this is plant cell and not an animal cell?
Based on the diagram, the structures which distinguish that this is plant cell and not an animal cell are 1 and 3 and is denoted as option B.
What is a Plant cell?This is referred to as a eukaryotic cell enclosed by a cell wall, containing a membrane-bound nucleus and other cell organelles.
it however varies from the animal cell through the presence of structures such as the cell wall which helps in ensuring that it has a rigid structure and is able to withstand stress and also the presence of chloroplast which contains the pigment needed for its photosynthetic activities.
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If phosphorous is limiting to a species in an ecosystem and the amount of phosphorous is increased, what will happen to the population of that species? What will happen to the carrying capacity?
Assuming phosphorous as a species limiting factor, if the amount of the element in an ecosystem increases over the species' superior limit, it will not be able to survive in this environment. The carrying capacity will decrease.
What are limiting factors?
Limiting factors are environmental, biotic or abiotic conditions that act directly on populations and individuals, limiting their distribution and growth. These factors affect natality and mortality rate, migration, etcetera.
The tolerance range and carrying capacity depend on limiting factors.
Limiting factors might be
density-dependent ⇒ predation, competition, parasitism, etceteradensity-independent ⇒ human impact or natural disastersA species whose limiting factor is phosphorous will grow between its superior and inferior limits.
In the optimum zone, it will express the highest growth levelIn its physiological stress zone, there will be a lower number of individualsHowever, if the phosphorous level is over or below these limits, the species will be in its intolerance zone, and the population will not grow.
If the amount of phosphorous in an ecosystem is increased over the superior limit (intolerance zone), the species will not be able to survive in this environment. The carrying capacity will decrease.
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during an infection, some viruses stay inside the cells but do not make new viruses. instead, the viral gene is inserted into the host chromosome and is called a(n
During an infection, when the viruses stay inside the cells but do not make new viruses, instead, the viral gene is inserted into the host chromosome is called a provirus.
Infection is the invasion and growth of microorganisms inside the living body. The invasion may occur at any part of the body and spread all along. The general symptoms of infection are: fever, itchiness, redness of skin, sneezing, etc.
Provirus is the inactive virus that can integrate into the genome of a host cell. It is a stage in the lifecycle of virus. The example of a provirus is adeno-associated virus.
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4. Getting a paycheck is a form of positive reinforcement?
Answer:
Explanation:
Another example of positive reinforcement would be getting paid after going to work. Getting that paycheck at the end of the week or seeing your direct deposit go through increases the likelihood that you will go back to work on Monday. The money is added to your environment, i.e., your bank account.
The author quoted in passage 1 would likely argue that the historians having lifted passages from other historians
Academic collaboration can be shown in the claim that other historians made in their argument that lifted passengers, hence option A is correct.
Who is academic collaboration?Two well-known historians were recently found to have copied passages from other historians' writings in academic collaboration.
They did mention the sources in the footnotes, while not putting the lifted sentences in quotation marks. Both scholars were swiftly buried by a barrage of criticism.
Therefore, "lifted passages from other historians" is an example of academic collaboration.
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The given question is incomplete, so the most probable complete question is,
The author quoted in Passage 1 would likely argue that the historian's having "lifted passages from other
historians" (sentence 4, Passage 2) is
O an example of academic collaboration
O deserving of harsh punishment
O far from an isolated incident
O a comparatively recent problem
before lipids can be used by the body, they must first be digested and absorbed. classify the following steps in lipid digestion based on where they occur in the digestive tract. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. mouth and stomach small intestine mucosal cells of small intestine answer bank
Mouth and stomach:
Chewing and mixing with salivaLingual lipase digestion (in the mouth)Gastric lipase digestion (in the stomach)Small intestine:
Bile emulsificationPancreatic lipase digestionMicelle formation and transportMucosal cells of small intestine:
Fatty acid and monoglyceride absorptionRe-esterification and chylomicron formationWhat is lipid digestion?Lipid digestion is the process by which the body breaks down fats into smaller components that can be absorbed and utilized for energy. It begins in the mouth, where enzymes in saliva begin to break down the triglycerides in food. In the stomach, lipids are further broken down by gastric lipase.
The majority of lipid digestion, however, occurs in the small intestine, where bile salts and pancreatic lipase work together to break down fats into fatty acids, which can then be absorbed into the bloodstream and transported to cells throughout the body.
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match each description to the correct type of scientific study: discovery science or experimentation, as defined in the text.
The _____ orders the adrenal glands to release the hormones epinephrine and norepinephrine, which act to provide a surge of energy.
The sympathetic nervous system is activated by the hypothalamus, a crucial component of the endocrine system. The adrenal glands are then prompted by this to release both norepinephrine and epinephrine into the bloodstream.
What are the adrenal glands?Little, triangular-shaped glands that are situated on top of both kidneys are also referred to as suprarenal glands. Your immune system, blood pressure, stress response, metabolism, and other critical processes are all controlled by hormones that are produced by your adrenal glands.
What 3 hormones are produced by the adrenal glands?The endocrine glands known as your adrenal glands were situated above your kidneys. They include cortisol, aldosterone, and adrenaline, among many other crucial chemicals. Many internal processes, including metabolism, blood pressure, and your body's reaction to stress, are regulated by the adrenal hormones.
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Which of the answers below best completes the following sentence:
Although free fatty acids form micelles, phospholipids and glycolipids form bimolecular sheets because...
a. the association of phospholipids is entropically driven
b. of the presence of two fatty acyl chains
c. water forms clathrate structures around fatty acid micelles
(b) Although free fatty acids form micelles, phospholipids and glycolipids form bimolecular sheets because of the presence of two fatty acyl chains.
The bilayer is held together by weak hydrophobic interactions between the tails. Hydrophilic / hydrophobic layers restrict the passage of many substances. Individual phospholipids can move within the bilayer, allowing for membrane fluidity and flexibility. Phospholipids assemble into bilayers spontaneously when introduced into aqueous environments. Their assembly is driven by the hydrophobic effect such that the lipids spontaneously arrange themselves in a manner that minimizes the hydrophobic surface area that is exposed to water. The hydrophilic regions of the phospholipids tend to form hydrogen bonds with water and other polar molecules on both the exterior and interior of the cell. Thus, the membrane surfaces that face the interior and exterior of the cell are hydrophilic.
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Parietal cells are the epithelial cells that secrete hydrochloric acid (found in gastric glands). The claim that gene regulation results in differential gene expression and influences cellular products is best supported by evidence in which of the following statements?
answer choices
Parietal cells possess transcriptional activators that are different from those of other cells.
Parietal cells and other cells use different RNA polymerase enzymes to transcribe DNA.
Parietal cells and other cells possess the same transcriptional activators.
Parietal cells and other cells possess different general transcription factors.
Parietal cells contain methylated DNA that promotes the production of acids.
The difference in general transcription factors between parietal cells and other cells is evidence that gene regulation results in differential gene expression and influences cellular products.
As per the question given,
The claim that gene regulation results in differential gene expression and influences cellular products is best supported by the statement that parietal cells and other cells possess different general transcription factors. Transcription factors are proteins that bind to specific DNA sequences to regulate the transcription of genes. General transcription factors are required for transcription initiation by RNA polymerase in all eukaryotes.
However, different cell types can have different levels of general transcription factors and other transcription factors, leading to differential gene expression and the production of different cellular products. In the case of parietal cells, they possess specific transcription factors that allow them to produce and secrete hydrochloric acid, which is not produced by other cells.
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ADH ______. A) increases urine production. B) promotes dehydration. C) is produced in the adenohypophysis. D) is inhibited by alcohol.
The brain releases an anti-diuretic (ADH), which inhibits kidney water excretion and reduces urine production. The body generates less urine when Antidiuretic hormone levels are high.
What blocks ADH?Atrial natriuretic peptides (ANP), which would be released in stretched atria of response to rises in blood pressure, in addition to alcohol and some medicines, all impede the release of ADH.
What prevents the release of ADH?The findings suggest that norepinephrine reduces ADH release predominantly through changes in autonomic baroreflex tone rather than through a cells which leads or pressor impact of the catecholamine. The principal channel for other nonosmotic impacts on ADH release may also use this mechanism.
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Which of the following statements regarding changes in the position of the uterus in relation to changes in bladder volume is correct?
-When the bladder fills, the uterus tilts posteriorly in relation to the vaginal stripe.
-When the bladder empties, the uterus tilts anteriorly in relation to the vaginal stripe.
The statement "When the bladder empties, the uterus tilts anteriorly in relation to the vaginal stripe." is correct regarding changes in the position of the uterus in relation to changes in bladder volume.
As the bladder fills with urine, it expands and can push the uterus upwards and backward, which can cause the uterus to tilt slightly posteriorly. When the bladder empties, it becomes smaller and the uterus can move forward and tilt slightly anteriorly. This movement of the uterus is due to its position backward, where it is located just in front of the rectum and behind the bladder. The movement of the uterus in relation to the bladder is also influenced by other factors such as the tone of the pelvic floor muscles and the size of the uterus.
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which of the following is not a component of a PCR reaction? a. template genomic DNA b. DNA primers nucleotides c. template RNA
d. Taq polymerase
Template genomic DNA is not a component of a PCR reaction.
What are the steps of a PCR reaction?Polymerase chain reaction is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a mixture of DNA molecules.
The majority of PCR methods rely on thermal cycling. Thermal cycling exposes reactants to repeated cycles of heating and cooling to permit different temperature-dependent reactions—specifically, DNA melting and enzyme-driven DNA replication.
PCR is based on three simple steps required for any DNA synthesis reaction: (1) denaturation of the template into single strands; (2) annealing of primers to each original strand for new strand synthesis; and (3) extension of the new DNA strands from the primers.
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Which of the following artifacts are noted with bladder ultrasonography? A. Posterior acoustic enhancement. B. Mirror artifact. C. Ring-down artifact
In bladder ultrasonography, there are artefacts associated with posterior acoustic enhancement. Hence option 'A' is correct
What is 'ultrasonography'?A procedure that uses high-intensity sound waves to look inside organs and tissues. The echoes of the sound waves produce an image of the tissues and organs on a computer monitor (sonogram). Cancer and other illnesses may be identified
What is the purpose of an ultrasonography?Sonography, often known as diagnostic medical sonography or "sonography," is an imaging technology that employs sound waves to produce pictures of your body's interior organs and other structures. In order to detect various disorders and create therapies for them, the images might be employed.
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genotype-environment correlations occur because biological parents, who are genetically related to the child, provide a rearing environment for the child.
When the child's biological parents offer a nurturing environment, there are passive genotype-environment connections. Genetic and environmental relationships exist because a child's traits lead to particular surroundings.
The link between a kid's genotype, which he or she receives from both parents, with the environment in that the child is raised is known as passive genotype-environment correlation. The social environment's response to individuals based on their inherited traits is referred to as evocative genotype-environment correlation. One's disposition, such as whether they are more outgoing or introverted, will influence how others regard them. When there are variations in the exposure with environmental risk variables that are genetically driven, this phenomenon is known as gene-environment correlations (rGE). The idea of genetic environment correlation offers another viewpoint on how genes and environment interact.
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Question 1 of 10
Which option is an example of an object that has potential energy followed by
an object that has kinetic energy?
OA. The fuel in the tank of a car | a car that is parked in a parking lot
OB. A person riding an elevator | a person in an elevator at the top
floor
C. A ball held over a person's head | a ball rolling on the floor
OD. A battery in an electric car | a car parked in the middle of a hill
A ball held over a person's head
identify the formed elements of the blood that are found in this blood smear micrograph by clicking and dragging the labels to the correct location.
Elements that have been formed. Cells and cell fragments suspended in plasma are the produced elements. Erythrocytes (red blood cells), leukocytes (white blood cells), and thrombocytes are the three types of produced elements (platelets).
Plasma, red blood cells, white blood cells, and platelets are the four major components. Blood has several purposes, including carrying oxygen and nutrients to the lungs and tissues.
To avoid excessive blood loss, blood clots are formed. Blood is a homogeneous fluid made up of created elements, primarily erythrocytes (red cells), platelets, and leukocytes (white cells). The latter is mostly a protein (albumin, globulins, and fibrinogen) and mineral electrolyte solution.
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Full Question ;
Identify the formed elements of the blood that are found in this blood smear micrograph by clicking and dragging the labels to the correct location Leukocytes (neutrophils) Platelets Erythrocytes (RBCS).
In terms of their length of effect, endocrine messages are to ______ as neural messages are to____________. slower to arrive and longer lasting
In terms of their length of effect, endocrine messages are to marble sculptures as neural messages are to sand castles. Hence the correct answers are marble sculptures; sand castles.
What do we understand by marble sculptures?Marble shines and feels cold to the touch when cut and polished. Marble is a particularly hard rock. Marble is occasionally used in the construction of buildings and statues. The art of creating three-dimensional sculptures out of marble is known as marble sculpture. Sculpture was one of the first forms of art.
Sculpture is a type of art that involves the creation of three-dimensional objects out of hard or plastic materials. The designs could be free-standing objects, reliefs on surfaces, or environments such as tableaux or those that enclose the viewer. Despite its high cost and scarcity, it was widely used in sculpture and architecture. Marble was prized for its naturalistic physical properties, durability, and transparency.
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Purple flowers (P) are dominant over white flowers (p) and long pollen grains are dominant over round pollen grains. When purple flowers and long pollen grain plants were crossed with plants with white flowers and round pollen grains, all the F1 plants showed purple flowers and long pollen grains. The Fi plants were crossed and the results are in the table: What conclusions about the physical relationship between the traits can be drawn from the experiment? phenotype number of offspring purple flowers/long grains 415 purple flowers/short grains 92 white flowers/long grains 88 white flowers/short grains 405 incomplete dominsance A. The traits follow the law of independent assortment. B. The traits are located on different chromosomes. C. There was epistasis. D. The traits are probably linked.
The conclusion that can be drawn by observing the cross between plants with purple flowers, long pollen grain plants and plants with white flowers, round pollen grains is that: (D) The traits are probably linked.
Cross is the breeding between two organisms that may or may not be of the same species. This results in an offspring that possesses the traits from both the parents. The offspring may show traits similar to one or both the parents or their traits may be completely different.
Linkage is the phenomenon where the two genes are placed closely together in a chromosome such that their segregation usually happens along with each other. If the offspring produced by a cross yields are more similar to their parents then their genes can be said to be linked.
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what is plant root system
Answer:
Plant root system are the important underground part of all vascular plants.
Explanation:
The primary functions of this portion of the plant are to firmly establish it in the ground and to take in water, nutrients, and critical minerals from the surrounding soil. Furthermore, food is kept there.
: e division of a mother cell's nucleus into two identical daughter nuclei, s typically divided nto four phases. Click and drag ea ch of the labels to identify what events take place during each phase of mitosis Mitosis, o METAPHASE PROPHASE ANAPHASE TELOPHASE A nuclear envelope forms around each group of daughter chromosomes and shorter and thicker forming A cell plate forms and daughter chromosomes Spindle fibers shorten, Chromosomes are aligned causing sister chromatids at the equator of the cell to be pulled to opposite become longer and become and the spindle is fully envelope and nucleolus indistinguishable the nucleoli reappear. developed disintegrate.
The correct description of the events in the four stages of mitosis is:
Prophase - nuclear envelope disintegrates, chromosomes become shorter and thicker, and spindle fibers begin to form.Metaphase - chromosomes are aligned at the equator of the cell, spindle fibers shorten, causing sister chromatids to be pulled to opposite poles of the cell.Anaphase - sister chromatids separate and are pulled to opposite poles of the cell by the spindle fibers.Telophase - nuclear envelope forms around each group of daughter chromosomes, spindle is fully developed, chromosomes become longer and become indistinguishable, and the nucleoli reappear.What are the four stages of mitosis?Mitosis is the process of cell division whereby a parent cell divides into two identical daughter cells.
Mitosis occurs in four stages.
These four phases are prophase, metaphase, anaphase, and telophase.
The events that occur in each of the four stages are described below:
Prophase- Chromosome formation, thinning of the nuclear membrane, and attachment of chromosomes to spindle fibers by their centromeres.Metaphase - Along the metaphase plate, the chromosomes are aligned (center of the cell).Anaphase -Sister chromatids are attracted to the cell's polar opposites.Telophase - Chromosomes unfold into chromatin, the nuclear membrane recovers, and cytokinesis can start.Learn more about the stages of mitosis at: https://brainly.com/question/29627725
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The heart is located in the body cavities. thoracic, ventral and pleural dorsal, ventral, and pericardial ventral and thoracic ventral, thoracic and pericardial
The body cavities in which the heart is located are: ventral, thoracic and pericardial cavities.
Body cavity is defined as the hollow fluid-filled space inside the living body that holds and supports the various organs. There are various cavities inside the living body which are separated by membranes. The human body has two main large cavities: the dorsal and the ventral. These cavities consist of various other small cavities.
Pericardial cavity is the double membranous cavity which holds the heart intact inside the thoracic cavity. It surrounds the heart as well as the roots of the major blood vessels extending out from the heart.
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