Improved growth rate and improved resistance to various diseases are
among the goals of
a) animal breeders
b) ethologists
c) wildlife biologists
d) animal groomers

Answer:

La pareja A.

Explanation:

El comportamiento del par A indica que el material de los calcetines tiene mayor cantidad de cargas libres, lo que indica que su capacidad de conductividad eléctrica es mayor. Esto hace que las cargas positivas y negativas presentes en cada miembro del par se atraigan entre sí, lo que hace que cada miembro permanezca juntos por mucho más tiempo, hasta que el potencial de energía entre estas cargas disminuya.

Answer: Deforestation is a problem because it eradicates all the oxygen that we inhale that is created by a vast amount of  trees that can only produce a fraction of oxygen for a person to breath several times

Answer:

42

Explanation:

If a cell has 42 pairs of chromosomes (n = 42), it has 84 chromosomes (2n = 84). At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 84 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 42 chromosomes.

A simple example is↓

The parent cell of 10 chromosomes will end up becoming two daughter cells that each have a copy of those 10 chromosomes.

The important fact about mitosis is that the daughter cells are identical to the parent cell. The daughter cells will have the same number of chromosomes as the parent cell.

If a cell with 42 chromosomes undergoes mitosis, the equal 42 chromosomes will each daughter cell have.

What is Mitosis?

Mitosis is a process where a single cell divides into two identical daughter cells (cell division).

Before a cell divides it undergoes DNA replication. As a cell enters mitosis, double-stranded chromosomes fuse from the replicated DNA. A cell having 42 chromosomes will have 42 double-stranded chromosomes entering mitosis. Upon completion of cell division, each daughter cell will receive 42 single-stranded chromosomes, as double-stranded chromosomes are pulled apart during mitosis.

Therefore, if a cell with 42 chromosomes undergoes mitosis, the equal 42 chromosomes will each daughter cell have.

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Answer:

The subarachnoid space surrounds the brain and spinal cord and provides buoyancy for the brain. It also provides some nourishment for the brain. There are several subarachnoid collections of CSF called cisterns.

Explanation:

Answer:

respiratory system

Explanation:

This system provides oxygen to the brain, but in terms of nutrients to brain cells, then I would say the circulatory system since this carries nutrients to all parts of the body.

I hope this helps you :)

Answer: Sea Turtle

Explanation:

Sea turtles especially the green sea turtle Chelonia mydas is the most closely related to Dr Digger's creation  having shell covering cavity covering the whole body except head and four limbs known as flippers which make them paddle along swiftly while swimming Thier mouth without teeth  is shaped like a beak which  makes them perfect herbivores which feed on mostly algae and grasses in the sea. Currently there are about 7 species of the sea turtle.

Answer:

c

Explanation:

sea turtle

The correct answer is A. Moss

Mold,

I believe the next number is 9900

Reason: To get the next number in the sequence, move the decimal point

0.99 —> 9.9

9.9 —> 99.

99. —> 990.

990. —> 9900.

Sorry if wrong

The lipid abnormality most closely linked to heart disease is high levels of low-density lipoprotein (LDL) cholesterol, often referred to as "bad" cholesterol.

LDL cholesterol is a type of lipoprotein that transports cholesterol from the liver to various tissues in the body. When LDL cholesterol levels are high, it can lead to the accumulation of cholesterol in the arterial walls, causing atherosclerosis, which is a major risk factor for heart disease.

Excess LDL cholesterol can enter the arterial walls and promote the formation of fatty plaques. These plaques can narrow and harden the arteries, impeding blood flow to the heart muscle. If a plaque ruptures, it can lead to the formation of a blood clot, which can further block the blood flow and result in a heart attack.

Conversely, high levels of high-density lipoprotein (HDL) cholesterol, often referred to as "good" cholesterol, are associated with a reduced risk of heart disease. HDL cholesterol helps remove excess cholesterol from the arteries and transports it back to the liver for processing.

Monitoring and managing LDL cholesterol levels through a healthy lifestyle, including a balanced diet, regular exercise, and medication when necessary, can significantly reduce the risk of heart disease.

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Responding to the environment is a characteristic of the life best shown by a living organism.

This is referred to as a biological entity which is capable of transferring genetic traits to its offspring and also undergoes cell division which ensures its body parts grow. They are also involved in the search for food and other types of nutrients for their normal functioning.

Living organisms are able to perform such functions such as the following below:

Plants and animals possess special structures which enable them respond to different types of stimuli such as heat, cold etc. This enables the body system adjust and adapt thereby increasing the survival chances of the organism.

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The heating in the Benedict's test and Millon test is carried out in a water bath to maintain a constant and controlled temperature. This ensures accurate and reliable results by minimizing external factors that could influence the reactions taking place.

The Benedict's test and Millon test are both chemical tests used to detect the presence of reducing sugars, such as glucose, in a given solution. These tests involve a reaction between the reducing sugar and a reagent, which undergoes a color change in the presence of the sugar.

Heating is an essential step in both tests because it helps to facilitate the reaction between the reducing sugar and the reagent. By applying heat, the rate of reaction increases, allowing for faster and more reliable results. However, it is crucial to maintain a consistent and controlled temperature throughout the reaction to ensure accuracy.

A water bath is used for this purpose. A water bath consists of a container filled with water that is heated to a specific temperature, typically around 70-100 degrees Celsius, depending on the test being performed. Placing the test tubes containing the reaction mixture into the water bath allows the solution to be heated uniformly and consistently.

The water bath provides a stable and controlled environment, preventing sudden temperature fluctuations that could affect the reaction rate and, consequently, the test results. It helps to maintain the reaction at the desired temperature for a specified duration, ensuring optimal conditions for the reaction to occur.

By carrying out the Benedict's test and Millon test in a water bath, scientists and laboratory technicians can achieve reliable and reproducible results, allowing for accurate identification of the presence of reducing sugars in a given solution.

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Evisceration is a defense strategy used by certain sea cucumbers that involve the abrupt evacuation of the gut and other internal organs through the mouth or anus.

The defensive mechanism observed in some sea cucumbers is known as evisceration. This is an adaptive survival strategy that helps the sea cucumber escape from predators or other dangers.

The mechanism observed in some sea cucumbers is called evisceration. This is a defense mechanism used by the sea cucumber to distract predators or remove parasites from its body.

When threatened, the sea cucumber will quickly expel its gut and other internal organs through its mouth or anus, effectively making itself less appetizing to the predator. The expelled organs can be regenerated over time.

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Answer:

c. the ventricles are relaxed and fill with blood is correct

Explanation:

When a harmless species takes advantage by resembling the aposematic coloration of other species that are toxic, it is called Batesian mimicry.

Batesian mimicry is a form of protective resemblance in which a non-toxic or harmless species evolves to imitate the warning signals of a toxic or harmful species. By mimicking the aposematic coloration, the harmless species gains protection against predators that have learned to avoid the toxic species.

In Batesian mimicry, the harmless species benefits from its resemblance to the toxic species because predators associate the warning signals with danger and avoid attacking them. This phenomenon occurs when the predators have encountered and learned to avoid the toxic species. The mimics gain a selective advantage by reducing their chances of being preyed upon, even though they lack the actual defenses possessed by the toxic species.

The process of Batesian mimicry involves natural selection favoring individuals within the harmless species that bear a resemblance to the toxic species. Over time, this resemblance becomes more pronounced as predators continue to learn to avoid the toxic species. As a result, the harmless species benefits from reduced predation rates, and the frequency of individuals with the mimetic traits increases within the population.

In conclusion, when a harmless species takes advantage by resembling the aposematic coloration of other species that are toxic, it is called Batesian mimicry. This adaptation allows the harmless species to gain protection by fooling predators into mistaking them for the toxic species.

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complete question:

When a harmless species takes advantage by resembling the aposematic coloration of other species that are toxic, it is called______.

Answer:

Mitosis is nothing more than creating an exact replica of the organism that is a source. Meiosis on the other hand allows for variation between organisms. In meiosis, the organism mates with another of the same species. If the two organisms that are mating are different, the resulting offspring will have similar genes to both the parents, but also could result in mutations. In meiosis, it is more likely for the offspring to have mutations rather than in mitosis.

Answer:

Explanation:

The Krebs cycle, named after 1953 Nobel Prize winner and physiologist Hans Krebs, is a series of metabolic reactions that take place in the mitochondria of eukaryotic cells. Put more simply, this means that bacteria do not have the cellular machinery for the Krebs cycle, so it limited to plants, animals and fungi.

For goldfish, solid orange coloring is dominant, and their number is 2275; orange with black spots is recessive, and their number is 225; and there are a total of 2500 goldfish, so the genotype frequency of orange-black is 0.09, and solid orange has 0.91.

Out of 2500 goldfish, 225 are orange with black spots, so the genotypic frequency (\({q}^2\)) is 225/2500, which is 0.09, so the allelic frequency is 0.3, and the dominant allelic frequency is 0.7. The calculation is given here.

= \({q}^2\) =0.09

= q= √0.09=0.3

As per Hardy weignberg, P+q=1

Hence, P= 1-q

P= 1 - 0.3 = 0.7

Genotype of purebred dominant

= PP= 0.7×0.7=0.49

(out of 100, 49 are dominant,

out of 2500 =1225)

Heterozygous dominant

=2Pq = 2×0.7×0.3=0.42

(out of 100, 42 are Heterozygous ,

out of 2500 =1050)

Purebred recessive

=qq =0.3×0.3=0.09

(out of 100, 9 are recessive,

out of 2500 =225)

Hence, for goldfish, solid orange coloring is dominant, and their number is 2275; orange with black spots is recessive, and their number is 225; and there are a total of 2500 goldfish, so the genotype frequency of orange-black is 0.09, and solid orange has 0.91.

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A faulty mutated variant of the LMNKRP gene will lead to the mis-separation of chromosomes during mitosis and/or meiosis.

The spindle fibers can be defined as specific cytoskeletal proteins present in eukaryotic organisms that bind to chromosomes during cell division (either mitosis or meiosis) and ensure their correct separation in anaphase stage of the cell division.

In conclusion, A faulty mutated variant of the LMNKRP gene will lead to the mis-separation of chromosomes during mitosis and/or meiosis.

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Answer: 34

Explanation: "In 2005, an additional analysis brought the total number of biodiversity hotspots to 34, based on the work of nearly 400 specialists." Basically, what the quote is saying is that, 34 biodiversity hotspots were found by 400 specialists.

Answer: B

Explanation:

The predators keep prey populations balanced. Therefore, option (B) is correct.

The presence of predators in an ecosystem helps to keep the population of prey species balanced. If the predators were absent, the prey populations could grow unchecked, leading to overconsumption of resources and potentially damaging effects on the ecosystem.

By keeping the prey populations in check, the predators help to prevent such imbalances, contributing to the overall stability and health of the ecosystem.

Predators also tend to prey on the weaker and less fit members of a population, which in turn helps to strengthen the gene pool of the prey species over time. This balance of predator and prey populations is an essential component of a healthy and stable ecosystem.

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Malthus' essay suggested to Darwin that populations do not grow unchecked, and that not all offspring survive.

Thomas Malthus' "An Essay on the Principle of Population" taught Darwin that populations do not grow unchecked and that not all children survive. Malthus argued that since population growth will always outrun food production, which can only increase arithmetically at most, poverty and misery are inevitable.

Charles Darwin's theory of evolution explains how natural selection propels the evolution of species over time. Natural selection is the process through which organisms that are better adapted to their environment survive and reproduce. With time, this process may alter the characteristics of a population, leading to the eventual development of new species.

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Malthus' essay suggested to Darwin that populations do not grow unchecked, and that not all offspring survive to reproduce.

Thomas Malthus was a British economist who wrote an essay in 1798 entitled "An Essay on the Principle of Population." In this essay, Malthus argued that human populations tend to grow faster than their food supply, leading to a population "crisis" in which many individuals suffer from hunger and poverty. Malthus suggested that this crisis could be averted through moral restraint, such as delaying marriage and having fewer children.

Darwin read Malthus' essay in the early 1830s, and it influenced his thinking about the process of natural selection. Darwin recognized that populations tend to produce more offspring than can survive, and that the individuals that are best adapted to their environment are more likely to survive and reproduce. This process of "survival of the fittest" leads to changes in the genetic makeup of a population over time, as advantageous traits become more common and disadvantageous traits become less common.

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Answer:

The answer is 'B'

Explanation:

Warm air toward high latitudes and cool air toward the equator.

Often, El Niño is accompanied by La Niña, as if warm seawater is bubbling back and forth across the Pacific Ocean. The development of El Niño is associated with trade winds. Appears when they are weaker than usual, and La Niña occurs when they are stronger than usual.

Cells use a process called DNA replication during cell division in order to ensure that the full set of DNA is copied correctly.

DNA replication is the process by which a cell makes a copy of its DNA before cell division. During this process, the two strands of the double helix DNA molecule separate and each strand acts as a template for the formation of the new complementary strand. This process is facilitated by various enzymes and proteins, which then result in two identical copies of the original DNA molecule.  DNA replication occurs during the S phase of the cell cycle.

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The given statement "prevention of illness is more cost effective than treating disease" is True because Prevention of illness is more cost-effective than treating disease as it involves proactive measures to avoid the occurrence or progression of diseases, which can save healthcare costs in the long run.

Prevention focuses on addressing risk factors and promoting healthy behaviors to reduce the incidence and prevalence of diseases. This approach not only saves money but also improves overall population health and well-being. It reduces healthcare expenditures by minimizing the need for hospitalizations, surgeries, and costly medications.

Additionally, prevention can lead to indirect cost savings by reducing productivity losses due to illness-related absences from work and disability. It also enhances the quality of life and reduces the economic and social impact of diseases on individuals, families, and communities.

Overall, prioritizing prevention as a cost-effective strategy helps allocate limited resources efficiently, promotes healthier populations, and reduces the burden of disease on healthcare systems and economies.

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If only nuclear division occurs without cytokinesis during the process of cell division, the result would be the formation of multinucleated cells or cells with multiple nuclei.

Cell division consists of two main processes: nuclear division (mitosis) and cytoplasmic division (cytokinesis). During nuclear division, the nucleus of the cell divides, ensuring that each daughter cell receives a complete set of chromosomes.

On the other hand, cytokinesis involves the division of the cytoplasm, resulting in the separation of the two daughter cells.

If only nuclear division occurs without cytokinesis, the cell would undergo mitosis but not divide into two distinct cells. As a result, the daughter cells would share a common cytoplasm, leading to the formation of multinucleated cells or cells with multiple nuclei. These multinucleated cells are known as syncytia.

Syncytia can be found in various biological processes and tissues. For example, muscle fibers are multinucleated cells formed by the fusion of multiple precursor cells during development. Similarly, certain fungal hyphae and giant algae cells can have multiple nuclei due to incomplete cytokinesis.

In summary, if only nuclear division occurs without cytokinesis, the cell would produce multinucleated cells or cells with multiple nuclei, where the daughter cells remain connected by a shared cytoplasm.

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Photosynthesis occurs in two stages, light-dependent reactions and light-independent reactions. Water and sunlight enter light-dependent reaction. Oxygen exits light-dependent reaction. Carbon dioxyde enters Calvin cycle. Glucose exits Calvin cycle. ATP and NADPH exit light-dependent reaction and enter calvin cycle. ADP and NADP+ exit  calvin cycle and enter light-dependent reaction.

Photosynthesis is the process through which plants take sunlight to produce organic products. It is composed of two main stages, light-dependent, and light-independent reactions.

During light-dependent reactions,

During light-independent reactions,

Both processes alternate to help the cell conserve energy and matter.

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