What is responsible for moving chromosomes during mitosis.

Answer:

Biodiverisity can increase the rate of extinction

Explanation:i did the quiz my self thats teh answer for this question

The correct answer is B. The percentage of the population with white fur will decrease

Explanation:

In the case presented, the fur of rabbits is related to an adaptation to survive during different seasons. In this way, the white fur is needed during winters as this helps rabbits to camouflage in an environment of snow providing them with a survival and reproduction advantage. On the other hand, the brown fur is better during summer as they need to camouflage between the brown trees, grass, and plants.

According to this, if temperature increases and therefore snow decreases the rabbits with brown fur will prevail as this will make them more likely to survive and reproduce, for example, a rabbit with white fur would be easily found by predators if there is no snow. Thus, in this case, "the percentage of the population with white fur will decrease".

Adaptation is the process in which an organism adjusts itself to survive in its surrounding. Adaptation can be affected by climate, rainfall, predators, and temperature.

The population of rabbits will be:

Option B: The percentage population with white fur will decrease.

In the given case, the fur of rabbits ranges from brown to white. The changes in the fur colour are due to the adaptability of rabbits to the given environment.

In winters, white fur is by rabbits because it will help in camouflaging in a snowy environment, which will provide them high chances of survival and reproduction advantage.

Conversely, the brown fur will be better suited in the summer as they will be easily camouflaged in brown trees, soils, and plants.

The rise in temperature will cause a decrease in the rabbits with white fur. The brown fur rabbits will have more tendency to survive and reproduce in summers.

Thus, the population of brown fur will increase in high temperatures and rabbits with white fur will decrease.

Therefore, option B is correct.

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Sexual reproduction produces genetically different offsprings which do possess variations, hence better chance to survive in the environment.

Option C

Sexual reproduction is the process of reproduction where there's a fusion of gametes from a male and female of the same species, resulting in a zygote and eventually an offspring. Sexual reproduction is very advanced type of reproduction which is very expensive for an organism. Much of the energy of the organism is spent to produce gametes and other necessary processes for reproduction.

Gametes of the sexual reproduction is produced mainly by means of meiotic cell division. This involves crossing over and chaismata formation which helps in genetic variations in the offspring. These variations help the species to survive unknown changes in environment, and helps to adapt quickly lessening the chances of extinction. So sexual reproduction has modified various times in different groups of species.

Cancer cells have gene mutations that turn the cell from a normal cell into a cancer cell. These gene mutations may be inherited, develop over time as we get older and genes wear out, or develop if we are around something that damages our genes, like cigarette smoke, alcohol or ultraviolet (UV) radiation from the sun.

Answer and Explanation:

Hydrogen ions in the thylakoid space form an electrochemical gradient because of the difference in the concentration of protons (H+) and the difference in the charge across the membrane that they create. This potential energy is stored as chemical energy in ATP through chemiosmosis. The hydrogen ions are allowed to pass through the thylakoid membrane through an embedded protein complex called ATP synthase. Energy from the electron fuels membrane pumps that actively move hydrogen ions against their concentration gradient from the stroma into the thylakoid space. The photon causes an electron in the chlorophyll to become excited.

Answer:

Development delays

Explanation:

Cuz it effect the brain the most

Answer:

A. changing

Have a magnifecent day!

Scientific knowledge is both long-lasting and always subject to change. This evolution is inherent to the scientific method which emphasizes constant testing, refinement, and modification of ideas based on new evidence or data.

The correct option is A: changing. While scientific knowledge can remain unchanged for a long time, it is always subject to change as new evidence or data emerges. Science is a dynamic and evolving field; scientists constantly test theories and hypotheses and refine them as needed. This is a cardinal characteristic of the scientific method: ideas must be testable and, as a result, potentially changeable. Hence, scientific knowledge is both long-lasting and always changing.

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The correct order is 2, 1, 5, 3 and 4.

As per Dalton’s theory, atoms were described as the indivisible and indestructible parts of matter which forms any object. But this theory was discarded.

Then came J J Thompson’s Plum Pudding model which described atoms as a mixture of positive and negative charges just like a pudding. But it was also discarded.

Then comes Rutherford's solar system model which described Atoms as mostly empty spaces where the nucleus resembles Sun with positive charge and electrons as planets revolving the sun.

The came Bohr’s theory which described the shells of Rutherford as specific energy levels, not just mere orbits. This led to explain flame colorings of many elements.

Then came Hizenberg's uncertainty principle and Schrodinger’s model of atom which basically described the quantam theory of atoms.

Answer:

Size range(cm)    Year 1900     Year 1950     Year 2000

    51 - 60                    1                    0                     0

    61 - 70                    1                     1                     0

    71 - 80                   2                    2                     2

    81 - 90                   2                    5                     7

    91 - 100                  2                   3                     2                

   101 - 110                  3                    0                    0

Explanation:

Your data table is actually color-coded, so all you needed to do was count. Looking at your frequency table, you can see that a color corresponds to certain colors.

For example 51 - 60c, corresponds to the light green. Looking at the data table, you see 1 light green block in the column of 1900. As it happens, it also is the only measurement that falls within the range 51 - 60 so you have 1 sea star. In the Year 1950, there is none, and you won't find one in Year 2000, so both frequency count is 0.

Answer:

Mouse

Explanation:

If you follow the Rule of 10%, the mouse gains the most energy from the seeds. The snake and the hawk only get 10% of that energy the mouse has consumes.

For example, follow the rule of 10% pyramid.

Producers: 1,000,000 kcal (energy)

Primary Consumers: 100,000 kcal

Secondary Consumers: 10,000 kcal

Tertiary Consumers: 1,000 kcal

In this sense, the seeds are the producers, the mouse is the primary consumer, the snake is the secondary consumer, and the hawk is the tertiary consumer.

Answer:

reactant

Explanation: water provides hydrogen during photosyn thesis for glucose

Final answer:

Ripples in a pond and seismic waves both exhibit wave properties such as carrying energy and having transverse and longitudinal properties, but they differ in their mediums and in what they can reveal about the medium's structure. Seismic waves travel through solids and are used to study the Earth's interior, whereas water waves are restricted to the surface. Both types of waves can experience superposition, where they pass through each other without altering their individual properties.

Explanation:

The ripples moving through the water in a pond are similar to seismic waves traveling through the Earth in that both are forms of wave motion that carry energy away from a source through a medium. With water waves, the disturbance is in the surface of the water, while seismic waves involve disturbances in the Earth's crust and mantle. Water waves cause water molecules to move in a clockwise circular motion due to their transverse and longitudinal properties. Seismic waves also exhibit transverse and longitudinal movements but in solids, with different types of seismic waves (P-waves and S-waves) showing different motions.

However, there are important differences too. Seismic waves can travel through the solid Earth and are used to probe its internal structure. In contrast, water waves are primarily confined to the surface of the liquid and reveal less about the water's depth. Furthermore, when it comes to interference, water waves and seismic waves can exhibit superposition, where they pass through each other without being altered. This characteristic is shared with other wave types, including sound and light waves. Lastly, multiple ripples in a pond are formed from a single disturbance due to the interaction of reflected waves coming from the edge of the pond, while seismic waves typically propagate as expanding waves from an earthquake's epicenter with little to reflect from.

Answer:

Diagram is needed please

Explanation:

diagram

The structure in the diagram that would normally represent homologous pairs of chromosomes is 1, only.

Structure 1: This represents a diploid cell, which means it has two sets of chromosomes. Each set contains one chromosome inherited from each parent. These chromosomes are homologous, meaning they have the same genes but may have different alleles (versions of the genes).

Structure 2: This represents a haploid cell, which means it has only one set of chromosomes. These cells are typically gametes, such as sperm or egg cells. Homologous pairs are not present in haploid cells.

Structure 3: This represents a mitotic cell, which is in the process of dividing to produce two daughter cells. During mitosis, the chromosomes replicate and then separate, so each daughter cell will receive one copy of each chromosome. Although the daughter cells will have homologous chromosomes, they are not shown paired in this diagram.

Therefore, the only structure that normally represents homologous pairs of chromosomes is structure 1, the diploid cell

complete question is attached

Answer:

There are different energy conversions which we encounter in day to day life. Some of them are:

1) We use chemical energy in the food to convert it into mechanical and kinetic energy which we need for walking to the school.

2) We use chemical energy to be transferred into electrical energy which is converted to light energy in our bulbs so that we can see.

3) We convert electrical energy in the toaster to thermal energy to make breakfast.

Epigenetic regulation mechanism and Repressors and transcriptional activators allows eukaryotic organisms is to regulate genes.

Explanation:

The gene expression regulation process in eukaryotic cell is complicated than when compared to the gene expression regulation process. In the organisms like multicellular, the regulation of gene expression obtained by the proteins. The regulation of genes in this type of organisms doe not take single level of execution.

Before the transcription stage begins, the DNA access is initially regulated. This process of regulation is termed as epigenetic regulation. There are 20,000 genes that are encoded by the genomes in human beings. These are arranged in such a way that they will be used by the particular type of cells when there is any need.

Answer:

List the inputs and outputs of photosynthesis. What part(s) of the plant are responsible for taking in each of the inputs?

6CO2 + 6H2O ------> C6H12O6 + 6O2

inputs                              outputs

6CO2= Carbondioxide(6 molecules of carbon and 12 molecules of oxygen)

6H2O= Water (12 molecules of hydrogen and 6 molecules of oxygen)

C6H1206= Glucose (6 molecules of carbon, 12 molecules of hydrogen and 6 molecules of oxygen)

6O2= Oxygen (12 molecules of oxygen)

The plant(s) part responsible for photosynthesis is the leaf because it contains the chloroplast that houses the chlorophyl which enable it to tap sunlight for photosynthesis to take place

Explanation:

Photosynthesis is a cellular metabolic process, regulated by enzymes, its inputs and outputs are the following:

Therefore, we can conclude that photosynthesis captures the light energy of the Sun and uses it to bind CO2 and form sugars.

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Answer:

Of the three kinds of substances that make up matter in nature which one forms most minerals? Most minerals are chemical compounds.

Explanation:

Final answer:

Silicates, composed of silicon and oxygen, are the most abundant class of minerals in the Earth's crust, forming around 90% of it and contributing to the diversity of rocks.

Explanation:

Of the three kinds of substances that make up matter in nature, silicates form most of the minerals found in the Earth's crust. Silicates, a large and complex class of minerals, are composed of silicon and oxygen, with the most common type being the silicate mineral with a base structure of (SiO₄)⁴⁻. Silicate minerals, such as quartz and feldspar, constitute approximately 90% of the Earth's crust due to the abundance of silicon and oxygen. These minerals are not only significant in quantity but essential for creating a diverse range of rocks and subsequently the landscape of our planet.

Exercise increases the rate of cellular respiration, which is needed to meet the heightened energy demand by producing more ATP. Endurance and resistance training lead to different cellular adaptations to improve performance. Cellular respiration becomes more efficient with regular training, enhancing energy production.

Exercise affects the rate of cellular respiration by increasing the demand for ATP, which in turn requires a rise in the production of energy via cellular respiration. Aerobic respiration is significantly more efficient than glycolysis, as it produces approximately 36 ATP molecules per glucose molecule compared to four ATPs from glycolysis. Nevertheless, aerobic respiration needs a continuous supply of oxygen, which is facilitated by increased breathing and heart rates during exercise, enhancing O₂ delivery to muscles.

Endurance training leads to cellular adaptations, such as an increase in mitochondrial density, which enhances aerobic respiration efficiency and oxygen utilization. In contrast, resistance training causes muscular adaptations primarily related to muscle strength and size. After intense muscle activity, the body must repay the oxygen debt incurred, which necessitates increased oxygen intake post-exercise to replenish ATP, convert lactic acid back to pyruvic acid, and restore muscle energy reserves.

Thus, when we exercise, our cells respond by ramping up the cellular respiration process to meet increased energy demands. This is why an athlete's body becomes more efficient at using oxygen and generating ATP over time with regular training.

Answer:

meiosis

Explanation:

When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other. This is called independent assortment.

Final answer:

Segregation and independent assortment take place during meiosis, causing homologous chromosomes to separate and ensuring genetic diversity in gametes. These processes are fundamental to Mendelian genetics and biological inheritance. Mitosis does not involve segregation of alleles but produces identical daughter cells.

Explanation:

Segregation and independent assortment of genetic material occurs during meiosis. Segregation refers to the separation of homologous chromosomes to different cells during meiosis, ensuring that gametes receive only one allele of each gene. This reflects the law of segregation by Mendelian genetics. Recombination also occurs through mating, which results in new combinations of genes.

Independent assortment takes place specifically during the anaphase-I stage of meiosis I. This is where chromosomes inherited from both the maternal and paternal side are sorted into gametes in a random manner, leading to genetic diversity. Equal segregation of alleles into daughter cells occurs only in meiosis; mitosis produces genetically identical daughter cells without allele segregation.

Genetic variation is heightened during meiosis I through crossover events, and further completion of meiosis II creates four unique haploid cells. These processes contribute to the genetic diversity seen in sexually reproducing organisms and are critical in understanding genetic inheritance and genetic disorders.

Answer:

An Earthquake

Explanation:

Answer:

There are two events that occur underwater to cause a tsunami. The first occurs when there is a landslide on the coast and the water is pushed by the force causing a tsunami. The second is when there occurs a landslide right under the water causing the water to push due to the natural forces generated by the landslide

Explanation:

Answer:

Landon and and Emily are eukaryotic products of sexual reproduction.

Explanation:

The reproduction in which the male and female gametes fuse to form genetically different organisms is syngenesis.

Landon and Emily are the eukaryotic products of syngenesis.

Syngenesis can be explained as:

The syngenesis occurs in the organisms differentiated into male and female. The gametes of the male and female fuse to form the offspring containing information from mother and father.

The syngenesis increases genetic diversity, species or organisms adapt to the environmental conditions, and diseases are less likely to affect the population.

Thus, the correct answer is Option D.

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Answer:

Rex is not a Tyrannosaurus rex because each of his hands has three fingers. Tyrannosaurus had only two fingers on each hand.

Answer:

two fingers on one hand and two  on the other

Letter B in the cell diagram illustrating a stage of mitotic cell division indicates the centrioles.

One of the main functions of the centrioles during cell division in the animal cell is to help in the formation of spindle fibers.

The fibers attach to chromosomes at the centromeres during metaphase and their shortening leads to the pulling apart of sister chromatids. Continuous shortening helps chromatids to complete their migrations to the poles.

Centrioles are vital parts of the centrosomes and are found only in animals, fungi, and some algal cells. In the diagram, the two centrioles can be seen at the two poles of the cell.

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Answer:

RNA polymerase is blocked by the repressor

The lac operon is on when the repressor protein get fallen off the operator.

An operon or a group of genes with a single promoter, which encodes genes for the metabolism and transport of lactose in E.coli and other bacteria. In the process, the group of three genes need to be turned on before the bacterium, that is, E.coli can utilize lactose as food.

In the absence of lactose, the lac repressor, that is, the DNA-binding protein combines with the region known as the operator that switches off the lac operon. When binding of lactose takes place with the repressor, it makes the repressor to fall off the operator, hence, turning the operon on.

Thus, when the repressor protein gets fall off the molecule, it shows that the lac operon is turned on.

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Answer: Identity

Explanation:

Answer: identity

Explanation:

a p e x

Answer:

Homologous structures can be described as the structures which are similar to one another present in different organisms. These similarities depict that the organisms might have a common ancestor i the past. For example, the forelimb of man, birds, dogs.

Analogous structures can be described as structures in different organisms which perform the same function but might not have a common origin. For example, the wings of bats and birds.

Answer:

modern dogs evovled from grey wolves to modern dogs

Explanation: