Answer:
Their similarity
Explanation:
Pharyngeal pouches are structures in vertebrates that develop in different parts of the body mainly in the face or neck. The similarity in their position and structural indicates a similarity . These structures provide evidence of evolution that the organisms evolved from the same ancestry.
A pharyngeal pouch (also known as Zenker's diverticulum) is a tiny bulge or pocket in the pharynx, similar to a hernia.
Pharyngeal pouches are transformed into different organs during evolution. This shows the relationship between different organisms using the pharyngeal pouch for different use.
Pharyngeal pouchIn embryological development, pharyngeal pouches are endodermal out-pockets that arise between the pharyngeal arches.The pouches give rise to tissues that comprise the middle ear cavity and Eustachian tube, as well as the palatine tonsils, thymus, parathyroid glands, and thyroid parafollicular cells.Thus, this is how the pharyngeal pouches are the evidence of evolution.
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What are monozygous twins? How are monozygous twins represented on a pedigree chart
Answer:
Monozygous twins can be described as the twins which arise from the same egg. A single egg divides into two zygotes to form the monozygotic twins. Such kind of twins are are also known as identical twins.
In a pedigree chart, the monozygotic twins are represented by a a horizontal line connecting the two diagonal lines that lead down to the gender symbols. A horizontal line between the children hence depicts that they are identical twins.
how does sleeping pills react or are bad to the body
Hi there.
Sleeping pills can be affective, one common side-affects are; "slower breathing" -- slower breathing is a common factor, as a side affect. Another would be "depressed breathing".
These happen for many reasons, forcing your body to sleep isn't on the "healthy" side of your body.
Sometimes, people do get addicted to sleeping pills; and take them every night and can lead to small or major health issues.
An unwanted pill that goes into your body every night will cause unwanted side affects. That can be very harmful!
I REALLY NEED HELP Time limit
in the late 1980's scientists began to notice that some strains of staphyloccoccus aureus bacteria were becoming resistant to topical antibiotics used by dermatologists to treat acne. By the year 2000 over 100 strains of staphyloccoccus were resistant to almost all antibiotics and scientists had to develop a new plan to kill the. Explain what happened geneticlly in the bacteria population over time as skin infections caused by staphyloccoccus aureus, were exposed to topical antibiotics.
Answer:
D is the answer
Explanation:
The explanation is the answer to the question. basically the lower resistant allele evolved with the mutation to have high resistance to the allele, making it the dominate one.
What is the maximum number of atoms that a carbon atom can bond with in a organic compound
Answer:
4
Explanation:
carbon atoms only have four valence electrons so they can only bond with 4 other atoms
Answer: Four (4)
Explanation: Carbon has a total of six electrons in its shell but has four (4) electrons in its outermost shell. Electrons found in the outermost shell are called valence electrons. This means that carbon needs four (4) electrons to complete its octet structure that is carbon needs four electrons to attain a stable octet structure of noble gases.
Three positive factors about glycolysis is that the process is Slow,Aerobic,and Large amount of ATP molecules.True or false and if false why?
Answer:
Anaerobic glycolysis is referred to as fast glycolysis and aerobic glycolysis is referred to as slow glycolysis
Explanation:
These terms were coined in relation to the amount of ATP generated per mole of glucose. Aerobic glycolysis produces around 38 ATP molecules, while anaerobic glycolysis generates only 2 ATP molecules per mole of glucose
which of these affect earth’s climate over a shorter period of time?
A. changes in solar output
B. changes in ocean currents
C. changes in orbital shape
D. changes in Earth’s tilt
Changes in Ocean Currents.
Explaination:
The changes in ocean currents affects earth's climate over a shorter period of time.
The ocean influences climate by storing solar radiation, distributing heat and moisture around the globe, and driving weather systems.Ocean currents acts like a conveyor belt.It transport warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate.When there is no currents in the ocean, regional temperatures would be more extreme super hot at the equator and frigid toward the poles.The earth's place would be unfit to live in.Answer:
Which is an example of human impact on climate changes?
changes in the tilt of Earth’s axis
global warming
changes in solar output
Explanation:
Answer global warming
As a result of increases in carbon dioxide levels, as well as other greenhouse gases, global temperatures have increased. This increase is called global warming.
Bobby went for a bike ride down the neighborhood, he firstly goes to Point A where a tree is, then he traveled to point B where his friends house is at to pick him up, and then he heads to Point C where him and his friend can relax at
what is the distance bob traveled and what was the displacement while bob was traveling?
Distance travelled by Bobby was 7 meters and the displacement was 5meters.
Explanation:Distance is defined as the total length of the path travelled by a body from its initial position to final position. Displacement on the other hand is defined as the length of the straight line joining the initial position and the final position of the body.
Here, Bobby travelled from point A to point C via point B which took him to travel more distance. The length of distance from point A to B is 4 meters and from point B to C is 3 meters. So the total distance covered is [tex]4+3[/tex] meters = 7 meters.
While the length of path straight from point A to C is 5 meters. So displacement is 5 meters.
3. A news clip once reported that a long distance runner drank too much water and eventually
collapsed and died? Explain why using what you have learned in this lab and in class.
Answer:
Hyponatraemia can be described as a situation in which there is a decrease in the sodium concentration of serum. Such condition arises due to excess of water due to which the concentration of the solutes becomes a lot lesser. Hence, it is also called as water intoxication.
The long-distance runner collapsed and died because he had consumed so much water that the water concentration in his body had diluted the concentration of vital minerals such as sodium. The drop-down of the sodium concentration was up to dangerous levels.
Final answer:
Water intoxication, or hyponatremia, occurs when too much water is consumed in a short period, diluting blood sodium levels which can lead to severe health issues and even death. It is particularly risksome for athletes who do not replenish electrolytes lost during intense activity. The condition emphasizes the importance of electrolyte balance along with hydration.
Explanation:
The news clip you are referring to likely discusses a rare but serious condition known as water intoxication or hyponatremia. This condition occurs when someone drinks too much water in a short period, leading to a dilution of sodium in the bloodstream. Our bodies need sodium and other electrolytes at specific concentrations to function properly. When these concentrations drop too low, it can result in symptoms ranging from headaches and nausea to more severe consequences like seizures, coma, and even death. The cells may swell from the excess water, particularly dangerous are the brain cells, which can lead to increased pressure inside the skull and possibly death.
Healthy kidneys can typically excrete up to one liter of excess water per hour, but drinking beyond this capacity overburdens the body's regulatory systems. For athletes or anyone involved in extensive physical activity, it is crucial not only to hydrate but also to replenish electrolytes lost through sweat. Simple water rehydration without electrolyte balance can lead to the dangerous dilution effect described. Thus, the runner in the news clip likely suffered from water intoxication due to excessive water intake without adequate sodium and electrolyte replacement.
The diagram below shows several rock layers and other geologic features. Each feature is labeled with a unique letter. The order of the letters do not necessarily reflect the order in which the features formed. Examine the diagram, and answer the question that follows.
Using the principles of original horizontality, superposition, and cross-cutting relationships, determine the missing step in the following order of events:
The lower layers were originally deposited as horizontal layers in the following order: M, N, P, Q, R.
___?___
Igneous intrusion G cross-cut layers M–Q.
Erosion occurred at surface X (unconformity).
The upper layers were deposited in the following order: H, I, J.
Alternatively, igneous intrusion G may have cross-cut layers M–Q before the layers were tilted or even before layer R was deposited.
A.
Layers M–R were tilted.
B.
Erosion occurred in layer J.
C.
Erosion occurred in layer I.
D.
Layers H–J were tilted.
Answer:
layer m-r tilted
Explanation:
The missing step is that Layers M-R were tilted. This conclusion is reached based on principles of original horizontality, superposition and cross-cutting relationships.
Explanation:Using the principles of original horizontality, superposition, and cross-cutting relationships, we can infer that the missing step in the sequence is option A: Layers M–R were tilted. This is because the layers were initially deposited in a horizontal orientation (the principle of original horizontality). They were then disturbed, causing them to tilt before the igneous intrusion G could cross-cut through layers M–R (principle of cross-cutting relationships). The principle of superposition implies that the lower layers were deposited first, starting with M. Erosion would then occur at surface X (unconformity), allowing for the deposition of the upper layers (H, I, J) in sequence.
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Carbon dioxide is formed when two oxygen atoms che
dioxide?
irbon atom. Which term best describes carbon
A. compound
B.
atom
C.
element
D. mixture
Why is it dangerous to eat wild mushrooms?
Some mushrooms may be poisonous. Even some that aren't poisonous, people may have unpleasant reactions to mushrooms. Even breathing the fumes can poison you.
So in general: poison
The hurricane center is MOST likely to be near location ___________ on Monday afternoon.
A) I
B) II
C) III
D) IV
B) II
Explanation:
The hurricane center is in location I on Sunday evening.
It advances forward near location II most likely on Monday afternoon.
Monday evening it moves forward and the hurricane center is almost between location II and IV.
Tuesday evening the hurricane center is in location III.
The National Hurricane Center (NHC) issues the graphical cone representation to show the movement of the hurricane centers for every 12 hours period. The cone is an uncertain representation and keeps growing wider as the uncertainty of the movement of the hurricane centers increases.
Answer:
iv
Explanation: got the answer wrong and iv was the right answer
A cell goes through cellular respiration and produces ATP which it then uses to move a molecule across the cell membrane. How does the energy in the original glucose molecule change during this process?
The stored energy in the glucose is used to produce ATP that can be converted to mechanical energy when the molecule moves across the cell membrane.
The energy in the glucose is stored as kinetic energy in the ATP and released as potential energy when the molecule moves across the cell membrane.
The energy in the glucose is stored as mechanical energy in the ATP and released as potential energy when the molecule moves across the cell membrane.
The kinetic energy in the glucose is stored as potential energy in the ATP and released as kinetic energy when the molecule moves across the cell membrane
The correct answer is : The kinetic energy in the glucose is stored as potential energy in the ATP and released as kinetic energy when the molecule moves across the cell membrane.
Explanation:
Adenosine triphosphate (ATP) is produced by converting the biochemical energy from nutrients during cellular respiration in the cells of organisms. The energy gained from ATP can be widely used for different cellular activities. Several metabolic reactions take place to change the energy from glucose to ATP.
During the movement of molecule across the cell membrane, the kinetic energy in the glucose is stored as potential energy in the ATP and released as kinetic energy.
Answer:
d
Explanation:
If the diameter of the field at 40x magnification is 4.5 mm, a object half the length of the field is
Answer:
Length of the cells = diameter of field of view/ number of cells across the field of view
Explanation:
therefore 2.25= 4.5*X
X= 2.25/4.5
=0.5 number of cells
Which three types of pathogens cause disease by trying to get nutrients from your body?
A. Virus
B. Bacterium
c. Fungus
D. Parasite
Final answer:
Viruses, bacteria, and fungi are three types of pathogens that cause disease by trying to get nutrients from your body.
Explanation:
The three types of pathogens that cause disease by trying to get nutrients from your body are virus, bacterium, and fungus. These pathogens invade your body and replicate inside your cells, using your body's resources to sustain themselves. For example, viruses like the flu virus invade your cells and hijack their machinery to replicate and spread throughout your body. Bacteria like Staphylococcus aureus release toxins that damage your tissues and allow them to feed on the resulting nutrients. Fungi like Candida albicans can produce enzymes that break down your tissues and use the breakdown products as a nutrient source.
Describe all muscle tissues, including cell shape, layers, intercellular connections,
locations, and functions of each type.
Explanation:
There are three types of muscle tissue are cardiac, smooth, and skeletal.
1. Cardiac muscle tissue: It is located in the walls of the heart.
They appear striated.
Control is involuntary.
Function: To pump blood through the blood vessels in your body.
2. Smooth muscle tissue: It is located in walls of hollow visceral organs, except the heart.
They appear spindle-shaped.
Control is involuntary.
Function: To move food through the digestive tract.
To regulates air flow in lungs.
3. Skeletal muscle tissue: It occur in muscles which are attached to the skeleton.
They appear striated.
Control is voluntary.
Function: To support the body.
It makes bones and other body parts move.
Cell shape : There are different shapes of cells which are as follows:
1. Squamous 2.Cuboidal 3. Columnar 4. Polygonal 5. Stellate
6. Spheroid 7. Discoid 8. Fusiform 9. Fibrous.
Muscular layer: The muscular layer is present in many organs in the vertebrate body.
It is responsible for peristaltic movement in body.
There are two layers of muscle.
1. Inner 2. Outer layer.
Inner layer: The muscle of the inner layer is arranged in circular rings around the tract.
Outer layer: the muscle of the outer layer is arranged longitudinally.
Intercellular connections or junctions: These are the structures which provide adhesion and communication between cells.
There are mainly three types of junctions:
1. Tight junctions: It help to stop substances from leaking across a tissue.
2. Adhering junctions: It perform the function of cementing so as to keep neighbouring cells together.
3. Gap junctions: It facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small molecules and sometimes big molecules.
which of the following should be used to see small objects that are not visible to the naked eye? A metric ruler, a balance, a microscope, or a transfer pippit?
Answer:
Microscope
Explanation:
apeeeeeeeeeeex
What is the "giant impact hypothesis" and what evidence has been found that supports
this hypothesis?
Answer:
The giant-impact hypothesis, sometimes called the Big Splash, or the Theia Impact suggests that the Moon formed out of the debris left over from a collision between Earth and an astronomical body the size of Mars, approximately 4.5 billion years ago.
evidence: evidence for the giant impact scenario comes from rocks collected during the Apollo Moon landings, which show oxygen isotope ratios nearly identical to those of Earth.
Comparison of the zinc isotopic composition of lunar samples with that of Earth and Mars rocks provides further evidence for the impact hypothesis.
The giant impact hypothesis suggests the Moon was formed from the collision of a Mars-sized body with the Earth, flinging material into orbit that later became the Moon. Evidence such as oxygen isotope similarities and computer simulations bolster this theory, despite geological activity obscuring direct evidence.
Explanation:The Giant Impact Hypothesis
The giant impact hypothesis proposes that the Moon was created from debris ejected into space after a Mars-sized body (approximately one-tenth of Earth's mass) collided with the early Earth. This event is conjectured to have occurred early in Earth's history, and it is suggested that it was one of the largest impacts Earth could endure without being completely destroyed. Due to the magnitude of the impact, material from both the Earth's mantle and the impacting body was thrown into orbit, which eventually coalesced to form the Moon.
Evidence Supporting the Hypothesis
Although direct evidence of such a colossal event is challenging to find due to the geological activity of Earth that continuously remodels its surface, there is supporting evidence for the giant impact hypothesis. This includes the similarity of oxygen isotopes found on the Moon and Earth, which suggests a common origin. Another piece of evidence is the Moon's composition, which is remarkably similar to the Earth's mantle. Additionally, computer simulations match the current Earth-Moon system's dynamics when modeled with a giant impact event.
The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?
Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.
more than one question
Answer:
The correct answer is A)
Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
Explanation:
As we move up the trophic levels in an ecosystem, we observe that the amount of energy keeps on reducing at each trophic level. This phenomenon occurs because not all energy is transferred from one trophic level to another is an ecosystem. Most of the energy is released as heat into the atmosphere. Almost, 10% of the energy is known to flow from one trophic level to another in an ecosystem.
Answer:
a and c
Explanation:
what role do hormones play in dna replication
The energy of motion is called _____. kinetic energy potential energy weight mass need this in 2 days HELP MEH
Answer:
Kinetic Energy
Explanation:
Kinetic Energy is energy caused by motion. For instance, temperature is simply a measure of kinetic energy, or the movement of particles.
Answer:
Um Kinetic energy (hope it helps you)
Explanation:
Kinetic Energy is energy caused by motion.
Some scientists speculate that lightning was not
present on early Earth. How could you modify the
Miller-Urey experiment to reflect this new idea?
What energy source would you use to replace
lightning?
Heat the broth in the Miller-Urey experiment to approximately 200 degrees centigrade / 400 degrees Fahrenheit.
Explanation:
Temperatures on early earth were very hot compared to today. This is because even after the earth was formed by collision of matter such asteroids, it took millions of years to considerably cool down and have a solid earth crust and signs of oceans. The temperatures would have plummeted to about 200 degrees centigrade to allow for a biomolecules to begin forming via chemical reactions.
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Final answer:
To adapt the Miller-Urey experiment to a hypothesis without lightning on early Earth, alternative energy sources like UV radiation or geothermal heat could be used to initiate chemical reactions in the primitive atmosphere, simulating conditions that might have led to the formation of organic molecules.
Explanation:
The question asks how one could modify the Miller-Urey experiment if it were speculated that lightning was not present on early Earth and what alternative energy source could be used instead of lightning. In the original experiment conducted by Stanley Miller and Harold Urey, they simulated early Earth's conditions by introducing a mixture of gases believed to be in the atmosphere at the time and then subjected these gases to electric sparks to simulate lightning. This led to the formation of organic molecules, demonstrating a possible path for the origin of life from inorganic matter.
To modify the Miller-Urey experiment to reflect the new idea that lightning was not present on early Earth, one could use an alternative energy source such as ultraviolet (UV) radiation or geothermal heat. Both of these energy sources would have been present on early Earth. UV radiation from the sun could act as an energy source to drive the chemical reactions in the absence of lightning. Similarly, Earth's internal heat could result in geothermal energy causing chemical reactions on the ocean floor, such as hydrothermal vents, which could simulate the energy needed for the formation of organic compounds.
What is gravity's role in plate tectonics?
Answer:
*please mark me brainliest!*
It can be described as "ridge push and slab pull."
Explanation:
The three primary causes for tectonic plate movement are the convection of material in the mantle, gravity and the rotation of the planet. These forces cause each of the seven major plates and numerous other microplates to move independently of the others at a rate of a few centimeters per year.
Gravity plays a crucial role in plate tectonics by influencing the movement and interactions of Earth's tectonic plates. Gravity plays a significant role in plate subduction, which occurs when one tectonic plate sinks beneath another at convergent plate boundaries.
Plate Collision: Gravity acts to compress and deform tectonic plates during plate collisions at convergent boundaries. Mountain ranges, like the Himalayas, are formed when the gravitational force between the plates pulls them together and causes them to bend, fold, and rise.
Isostasy: The Earth's crust is kept in an isostatic equilibrium by gravity. The equilibrium between the upward pull of gravity and the buoyant force of the lithosphere (including tectonic plates) is known as isostasy.
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This is the result of nondisjunction of chromosomes during meiosis. This mutation results in three copies, instead of the normal two . If can happen with sex or autosomal chromosomes.
Answer:
The result of non-disjunction of chromosomes during meiosis, producing three copies of the chromosome in the embryos -instead of two- is called trisomy.
Explanation:
With reference to genetics, a cell is diploid because it has an even number of chromosomes, distributed in pairs - each of which is contributed by a parent - and responds to the formula 2n.
In trisomy, non-disjunction during meiosis of the homologous chromosomes causes an overloadin the corresponding gamete, which during fertilization will originate an embryo whose formula is 2n+1.
Trisomias are considered mutations, which can physically and functionally affect an individual, or even make an embryo not viable. This defect can occur in both autosomes and sex chromosomes.
A very common example of this mutation corresponds to the trisomy of chromosm 21, known as Down syndrome.
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Answer:
the correct answer is trisomy
Explanation:
i got it right on usatestprep
A model of segregation of alleles during meiosis is shown here. A student hypothesizes that failure for chromosomes to segregate
during meiosis might impact the phenotype of the resulting offspring, if those gametes are fertilized. What question is most relevant
for the student to ask about the outcome of a lack of segregation of chromosomes?
Answer:
Explanation:
If a gamete forms without segregation of chromosomes, will a triploid offspring survive?
Meiosis is the reductional division process that reduces the chromosome number. Will a triploid progeny survive is the question that should be asked.
What is segregation in meiosis?Segregation is the process of the separation of the paired homologous chromosomes for the formation of the two sister chromatids during the meiosis process of cell division.
If the process of segregation is absent then the cell will remain diploid and in the process of reproduction will fuse with another haploid cell to form a triploid gamete cell.
Therefore, the question should be about the survival of triploid organisms.
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Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's work after
he returned home from his voyage prompted him to ask which question?
-Do living things change over time, and if so, how?
-Are the Galapagos finches and those on the mainland the same species?
-Are pigeons related to the Galapagos finches?
-can selective breeding in nature lead to a new species over time?
*the answer isn’t A**
-Are the Galapagos finches and those on the mainland the same species?
Explanation:
When Darwin visited the Galapagos islands he observed that the small flocks of finches that existed there were very similar to the finches that existed in the mainland of South America except for their beak shape and feeding habits.This prompted him to ask the question that 'Are the Galapagos finches and mainland finches the same species?'Later on studies made it evident that a few groups of mainland finches migrated to the Galapagos island and occupied different niches.They adjusted themselves to the island environment and evolved with new adaptations in beak structure and feeding habits.They are now classified into 14 groups out of which 13 exist in the Galapagos island.The Galapagos finches are divided into three groups: the ground finches, tree finches and Warbler finches.Answer: Can selection in nature also lead to a new species over time.
Explanation: just did the quiz and got it right.
Which form of virus did Sabin use for the vaccine?
olio?
inactivated
killed
live
Answer
Inactivated
Answer:
Oral poliovirus vaccine or Sabin vaccine, named for its inventor American physician and microbiologist Albert Sabin, was developed. OPV contains live attenuated (weakened) virus and is given orally.
Answer:
inactivated
Explanation:
the vaccine cannot be fully dead otherwise the vaccine wouldn't work. the vaccine cannot be alive because that would give us the disease and we are trying to prevent it. therefore, the vaccine is inactivated
Suppose the two possible alleles for the height gene are tall and short. If short is recessive to tall, provide the symbol representation and the phenotype for each of the genotype for this trait.
The allele for short is tt
The phenotype is short and genotype is tt
Explanation:
In Mendelian Genetics, Tall is dominant so written in upper case so the allele will be TT, while the short will have recessive trait allele will be tt.
TT ( dominant tall)
tt (recessive short)
short progeny will always have tt alleles and the phenotypic trait of shortness will appear only when the carrier is homozygous tt.
the three possible alleles for both short and tall feature are:
TT, Tt, tt
The genotype is tt and phenotype is short height. One heterozygous possibility is Tt but T being dominant so 't'will not be expressed.
are minerals renewable resources or nonrenewable resources? why
Answer:
Minerals are non-renewable resource.
Explanation:
As Non-Renewable resources are those resources that cannot renew themselves. In other words, get depleted with use as the supply is limited. Minerals take years to form and once used cannot be got back in a short period.
Answer:
False minerals are not renewable
Explanation:
Minerals take time to form so when we use what one's are there they are gone.
what happens during anaphase
Answer:
each pair of chromosomes is separated into two identical, independent chromosomes by a structure called the mitotic spindle. The separated chromosomes are then pulled by the spindle to opposite poles of the cell.
Explanation:
Answer:
During anaphase, the chromosomes are separated into two groups that are genetically identical, and are move to the opposite pole of the cell by the spindle.
Explanation: During cell division, different changes are observed in the cell. In prophase, the chromosomes condense in the nucleus and become visible while the spindle begins to form in the cytoplasm. In metaphase, the chromosomes are arranged in the middle of the cell by the spindle. In anaphase, the spindle separate the chromosomes into two genetically identical groups and move them to opposite ends of the spindle poles. In telophase, there is formation of nuclear membrane around the two identical sets of chromosomes, spreading out of the chromosomes and breaking down of the spindle.