An organism has a diploid number of 2n = 24 chromosomes. at the end of meiotic anaphase ii, what is the number of chromosomes present in each cell?

the surface area of a figure in square units is the number of unit square it takes to cover entire surface without the gas or overlapse if three dimensional figure has + sides the sides called faces the surface area is the total of the area of the faces

Answer:

Disavantages if Carbon: Carbon can cause climate change by trapping heat, and they can contribute to respiratory disease from smog and air pollution.

Answer:Cellular respiration occurs in both eukaryotic and prokaryotic cells, with most reactions taking place in the cytoplasm of prokaryotes and in the mitochondria of eukaryotes. There are three main stages of cellular respiration: glycolysis, the citric acid cycle, and electron transport/oxidative phosphorylation.

Explanation: haah not me just finishing to learn that in science

Semi conductors are materials that are somewhere in between

Answer:

Soil water can affect the structural integrity or coherence of a soil; saturated soils can become unstable and result in structural failure and mass movement. Soil water, its changes over time and management are of interest to geo-technicians and soil conservationists with an interest in maintaining soil stability.

Explanation:

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Non-cyclic photophosphorylation is the process by which ATP is generated in photosynthetic organisms. During this process, the energy from light is harnessed to power the transfer of electrons from water to NADP+, generating oxygen and NADPH.

The byproduct of non-cyclic photophosphorylation is oxygen. The useful products of non-cyclic photophosphorylation are ATP and NADPH, which are used to fuel the Calvin cycle. The Calvin cycle is the process by which carbon dioxide is converted into glucose. This is an essential process for plants and other photosynthetic organisms because it is how they generate the energy they need to survive.

Cyclic photophosphorylation is a different process that involves the transfer of electrons from photosystem I back to the electron transport chain. The purpose of cyclic photophosphorylation is to generate ATP without producing NADPH. This is important because sometimes photosynthetic organisms need more ATP than NADPH.

By using cyclic photophosphorylation, they can generate more ATP without producing excess NADPH that would go to waste.

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The policy design which will best ensure that brine shrimp will continue to live in the Great Salt Lake is the Marine Protection, Research and Sanctuaries Act.

This is referred to as a plan or guidelines which are laid down by individuals and organizations so as to achieve long term goals.

Marine Protection, Research and Sanctuaries Act was set up to protect the marine environment by ensuring that there is no population from various sources. When it is polluted, the brine shrimp which is an example of an organism who live in the marine environment may leave the  Great Salt Lake to more conducive places.

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Answer:

Polar bears need an average of 4.4lb of fat per day to contain energy to survive. Those bears eat ringed seals and fish to survive. Polar bears have thick fur coats that help keep them keep warm in the cold to survive too. They have a layer of fur near to the skin and an outer layer of longer fur to keep themselves warm in the icy environment they live in. The inner layer isolates them against the cold. The skin underneath their fur is black and absorbs the heat from sunlight, helping them stay even warmer. Polar bears are would to sleep in pits which they dig into gravel ridges or sand to stay themselves warm and their cubs. Female bears need a male bear to reproduce. Once paired, the male and female stay together for a week or more then, reproduce.

Explanation:

Polar bears live in one of the planet's coldest environments and depend on a thick coat of insulated fur, which covers a warming layer of fat. Fur even grows on the bottom of their paws, which protects against cold surfaces and provides a good grip on ice.

Females den by digging into deep snow drifts, which provide protection and insulation from the Arctic elements. They give birth in winter, usually to twins. Young cubs live with their mothers for some 28 months to learn the survival skills of the far north. Females aggressively protect their young, but receive no help from their solitary male mates. In fact, male polar bears may even kill young of their species. female Bears need a male bear to produce. Once paired, the male and female stay together for a week or more, then reproduce. this is the way of reproducing .

Answer:

Sugar

Explanation:

Sugar is the only polar substance here

Answer:

E: sugar

Explanation:

Fats and oils are nonpolar so its not oils or butter.

Most inedible or permanent inks like sharpie are nonpolar so its not sharpies.

Nail polish has a number of ingredients one is resin, which is nonpolar. The answer is sugar.

Answer:

1. Bobcat

2. Eurasian Lynx

Explanation:

In the taxonomy of animals, there is a laid down sequence for naming. That sequence is Kingdom, Phylum, Class, Order, Family, Genus, Species. Animals can share any of these taxonomies. For example, they can belong to the same species or genus or family.

The Bobcat is known by the binomial, Lynx rufus. The Eurasian Lynx is also known by the binomial, Lynx lynx. This sequence of naming shows that these two animals belong to the same genus that is, the Lynx genus.

Answer:

The ozone layer protects harmful rays

Explanation:

When the ozone layer is depleted, UV rays from the sun enter the earths atmosphere, and becasue the ozone layer was replaced by greenhouse gases, they trap the suns rays in between the earths atmosphere, increasing earths temperature

The Genetic drift, gene flow, mutation, natural selection, and mating patterns are some of the variables that affect this.

The relative fitness of people who carry each allele and the environmental factors that affect their survival and reproduction will determine whether the frequency of black alleles is higher or lower than that of white alleles.

Freshwater aquariums can support the growth of white algae, which are extremely prevalent. Your fish won't be harmed by it, but it can be ugly. You'll learn about the causes of the proliferation of these white algae in this post, along with the methods you can take to get rid of them from your tank.

Black people must have at least one B allele since the colour is dominant. Either BB or Bb could be their genotype. There are no black people included in this pedigree.

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Answer:

It provides oxygen in atmosphere for all living organisms. It maintains the balanced level of oxygen and carbon dioxide ecosystem.

Answer:

Secondary succession is more common and usually occurs faster than primary succession because the substrate is already present.

Explanation:

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The Correct choice is : B

Smoking is a main factor that can lead to chronic kidney diseases.

Answer:

C

Explanation:

it was the time to f the dinosaurs and some of the dinosaurs were reptiles

The Cambrian Explosion (542-488 million years ago) is one of evolutionary biology's greatest mysteries. It was only during this period that complex organisms became widespread and diversified.

The scale of this event can be understood from the contrast between the biota and the extent of fossil diversity on the left and right. Cambrian paleontology has made great strides over the past century. In particular, well-preserved molluscs were found in the Middle Cambrian Burgess Shale and  Lower Cambrian Motianshan Shale sediments. The Cambrian side of the "Cambrian Explosion" is more abundantly depicted, contrasting with the Precambrian side. These extremely well-preserved fossil organisms are very difficult to study. The main challenge is her three-dimensional reconstruction and determination of the cellular tissue pattern of the Okina embryo and the fossil-buried structure of the Maotianshan shale. In this lecture, two recent technological approaches, propagating phase-contrast synchrotron X-ray microtomography and microtomography, enable non-destructive computational investigation and visualization of  internal and hidden features in each plane and in virtual 3-dimensional slices. We indicate that we provide our own analytical tools to make it possible. -D Internal structure representation.

Therefore, throughout the Cambrian epoch, each of these variables helped to expand animal phylum diversity.

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Answer: the answer is sulfur.

Explanation: I took the test

Answer:   Nearsightedness, Farsightedness and Astigmatism. Nearsightedness (myopia) is a very common condition in which the light coming into the eye is not focused properly onto the retina, making it difficult to see objects far away. The condition is usually caused by an elongation of the eyeball that occurs over time.

Explanation:

The most likely genetic mutation that results in Klinefelter's syndrome is non-disjunction during meiosis.

Non-disjunction occurs when chromosomes fail to separate properly during meiosis, the process of cell division that produces eggs or sperm. In the case of Klinefelter's syndrome, non-disjunction leads to the production of sperm cells with an extra X chromosome, resulting in the XXY genotype. When a sperm with an extra X chromosome fertilizes an egg, the resulting individual will have Klinefelter's syndrome.

During meiosis, homologous chromosomes normally pair up and separate, with each resulting cell receiving one copy of each chromosome. However, non-disjunction disrupts this process, causing the failure of chromosomes to separate correctly. As a result, one cell may receive an extra chromosome, leading to the presence of an additional X chromosome in the genotype.

Other genetic mutations mentioned, such as complete duplication of chromosomes during polyploidy, translocation during genetic replication, and crossing over during meiosis, do not directly result in the XXY genotype characteristic of Klinefelter's syndrome.

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Answer:

metabolic activity

Explanation:

The theory that swamps might harbor tiny, disease-causing animals too small to see was proposed by Marcus Terentius Varro, a Roman scholar and writer.

Marcus Terentius Varro, a prominent Roman scholar and writer who lived from 116 BCE to 27 BCE, suggested that swamps could be inhabited by minuscule creatures that were responsible for spreading diseases. In his book "Rerum rusticarum libri tres" (Three Books on Agriculture), Varro speculated on the existence of microscopic animals in marshy areas that could transmit diseases.

While Varro's theory was proposed long before the development of modern scientific techniques, his observations and ideas were influential in the early understanding of disease transmission. Although he did not have the means to prove his theory at the time, his insights were significant in recognizing the potential role of unseen organisms in swamps and their association with diseases.

Varro's hypothesis laid the foundation for future scientists to explore the connection between swamps, microorganisms, and the spread of diseases. His work contributed to the development of the field of epidemiology, eventually leading to advancements in understanding infectious diseases and the role of vectors in their transmission.

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The true statement about the effects of climate change on phenology is A.

Phenological changes from climate warming have been documented, and more are expected. Climate change has caused shifts in the timing of phenological events such as the start of spring, the blooming of flowers, and the arrival of migratory birds. These changes can have significant impacts on the fitness of organisms, as they may cause mismatches between the timing of key life cycle events and the availability of resources or suitable conditions.

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Under normal circumstances, about 99% of filtered glucose is reabsorbed back into the peritubular capillaries in the kidneys.

Glucose is filtered out of the blood in the glomerulus of the kidney and enters the tubular system of the nephron. The proximal tubule of the nephron reabsorbs most of the filtered glucose back into the bloodstream. This process is known as tubular reabsorption.

Under normal circumstances, nearly all of the filtered glucose is reabsorbed in the proximal tubule of the nephron, and less than 1% of the filtered glucose remains in the tubular fluid to be excreted in the urine.

The reabsorption of glucose is an active transport process that requires the use of energy in the form of ATP. The glucose transporters on the membranes of the proximal tubule cells move glucose from the tubular fluid into the cells and then into the peritubular capillaries for transport back into the bloodstream.

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Answer:

A, This is the case of selective pressure of environmental factors like snow, due to which favored the expression of the allele that formed white coat phenotype. This is not a Hardy-Weinberg principle, in which no selective pressure is applied. The relative frequencies of the alleles change in the gene pool, due to selective pressure, and the expressed alleles are often significant for survival in those conditions.

b,HW equilibrium means no selective pressures like the long, snowy winters selectively favoring the white coat phenotype over the other coat phenotypes. Selective pressures change the relative frequencies of the alleles in the gene pool. It also means the population does not have either immigration or emigration to change the ratios of alleles in the gene pool The Hardy-Weinberg principle of genetic equilibrium tells us what to expect when a sexually reproducing population has no selection pressure, no gene flow, no nonrandom mating, not even genetic drift.Explanation:

The allele frequency in a wolf population can change due to several factors such as genetic drift, natural selection, mutation, gene flow, and non-random mating.

Genetic drift refers to random fluctuations in allele frequencies that occur due to chance events. This can lead to the loss of some alleles and the fixation of others.

Natural selection can also impact allele frequency. Certain alleles may be advantageous in a particular environment, and wolves with those alleles may have higher survival rates and greater reproductive success. This can lead to an increase in the frequency of those alleles over time.

Mutation is another factor that can alter allele frequency. New mutations can arise in the wolf population, leading to new alleles.

Gene flow occurs when wolves migrate into or out of a population, bringing with them new alleles or removing existing ones.

Finally, non-random mating can also impact allele frequency. For example, if wolves preferentially mate with individuals who have certain alleles, this can lead to an increase in the frequency of those alleles over time.

Overall, the specific changes in allele frequency in a wolf population will depend on the interplay of these various factors.

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Answer:

Explanation: If your nerves in your skin don't gather information then you couldn't feel anything or comprehend what you're touching. So its basically like having CIPA which does not allow you to feel pain as pain receptors are also nerves.

The battle at Matewan, which occurred on May 19, 1920, can be understood within the broader context of the capital/labor struggle that was taking place across the United States during the early 20th century. This era saw numerous labor conflicts as workers fought for better working conditions, fair wages, and the right to organize.

Matewan, a small town in West Virginia, was the site of a violent confrontation between coal miners and the agents of the coal company. The miners were seeking to unionize and were met with fierce resistance from the coal operators who wanted to maintain control over the labor force and prevent the establishment of unions. The battle at Matewan became a symbol of the larger struggle between capital and labor during this time.

Similar labor conflicts were occurring in other parts of the country during the 1900s to 1920s. One notable example is the Ludlow Massacre in Colorado in 1914, where striking coal miners and their families were attacked by hired gunmen and the National Guard. Another significant event was the Triangle Shirtwaist Factory fire in New York City in 1911, which resulted in the tragic deaths of 146 garment workers and highlighted the dangerous working conditions faced by many laborers.

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