Which of the following represents the correct order of the parts of neurons that are involved in the flow of information, beginning with the presynaptic cell and ending where a synapse is made with a postsynaptic cell?
a. Dendrites, cell body, axon hillock, axon, axon terminals
b. Cell body, axon terminals, axon hillock, axon, dendrites
c. Axon, cell body, dendrites
d. Axon terminals, axon hillock, cell body, dendrites
e. Synapse, axon, cell body, dendrites

The PWS or the Prader-Willi syndrome refers to a rare genetic disorder in which the chromosome 15 gene are either unexpressed or deleted on the paternal chromosome. The paternal origin of the genetic material, which is influenced in the syndrome is essential as the specific region of chromosome 15 taking part is subject to parent of origin imprinting, signifying that for a number of genes in this region, only one copy of the gene is articulated, while the other is silenced due to imprinting.

This signifies that the majority of the individuals exhibit one functioning and one silenced set of these genes. While the individuals with the syndrome exhibits a non-functioning set and a silenced set. The disease is completely autosomal, therefore, it will not predict the sex of the offspring. Also, imprinting is on maternal copy, therefore, if the affected individual is male, it will pass on the mutated copy only in 50 percent of its gametes, and a non-functioning copy to the remaining 50 percent of the gametes. Thus, all of his offspring will exhibit PWS or will get affected.

In other case, if the affected person is female, it will pass on the mutated copy only in 50 percent of its gametes and a non-functioning copy to the remaining 50 percent of the gametes and offspring will take on the functioning copy from its male parent, therefore, all of her offspring will be normal.

Thus, the given statements will be:

1. Sons of affected males have a 50% chance of showing the syndrome - True

2. Daughters of affected males have a 50% chance of showing the syndrome. - True

3. Sons of affected females have a 50% chance of showing the syndrome. - False

4. Daughters of affected females have a 50% chance of showing the syndrome. - False

Prader-Willi syndrome is caused by a mutation in an autosomal maternally imprinted gene. Sons of affected males have a 0% chance of showing the syndrome, while daughters of affected males have a 50% chance of showing the syndrome. Sons and daughters of affected females both have a 50% chance of showing the syndrome.

Prader-Willi syndrome is caused by a mutation in an autosomal maternally imprinted gene. The statements provided are incorrect. Sons of affected males actually have a 0% chance of showing the syndrome, while daughters of affected males have a 50% chance of showing the syndrome. Sons and daughters of affected females both have a 50% chance of showing the syndrome.

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The correct answer is upwelling from equatorial to Polar Regions results in bringing oxygen from the epipelagic zone to deeper oceanic zones.  

It is a process in which the wind mediated motion of nutrient-rich, dense, and cooler water is moved towards the surface substituting the nutrient depleted and warmer surface water. The epipelagic zone refers to the upper layer of the ocean, which is abundant in oxygen and gets the majority of the sunlight for the procedure of photosynthesis. The upwelling of water from the equatorial to the polar region brings oxygen.  

Which of what makes up vascular tissue

The answer is: phloem.

the answer is sympatry

https://en.wikipedia.org/wiki/Sympatry

you can find the whole meaning of it in wikipedia :D

A biological population is a group of individuals of the same species that live close enough to interbreed and produce viable, fertile offspring. They are confined to a certain geographic area, with boundaries that can be either natural or artificial. Over time, isolated populations may diverge due to various evolutional forces.

The term used to describe populations that live close enough to interbreed is a biological population. This is defined as a group of individual organisms that interbreed and produce viable, fertile offspring. These individuals belong to the same biological species and are confined to a certain geographic area that may have natural or artificial boundaries, such as rivers, mountains, or roads. An example of this is a population of crickets living in a specific area, but separated from other populations of the same species due to a flood. Over time, these distinct populations may diverge due to the forces of natural selection, mutation, and genetic drift.

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um.............. im not sure about this.

Answer:

I have no clue if this is right but i think it is grasshopper and rabbit

Explanation:

Plants prepare their food through a process called photosynthesis. In the presence of sunlight, plants create glucose using carbon dioxide, water, and other elements.

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The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.

Answer: A four haploid cells

When meiosis is complete,four haploid cells are formed from a single diploid cell. The four daughter cells produced that contains half the number of chromosome than that of their parent cell. Due to meiosis the number of chromosomes remain fixed in a species from generation to generation.

The answer is D) waves crashing down on the rocks

Answer:

waves crashing down

Explanation:

Read this see if it can help you

AUGUST 28, 2014 -- What does the Sahara Desert in Africa have to do with hurricanes in the Atlantic, Gulf of Mexico, and Eastern Pacific Ocean? You might think this sounds a little crazy because hurricanes are very wet and deserts are very dry, but if it weren't for this huge, hot, dry region in North Africa, we would see far fewer hurricanes in the United States. The Sahara Desert is massive, covering 10 percent of the continent of Africa. It would be the largest desert on Earth, but based strictly on rainfall amounts, the continent of Antarctica qualifies as a desert and is even larger. Still, rainfall in the Sahara is very infrequent; some areas may not get rain for years and the average total rainfall is less than three inches per year. While not the largest or driest of the deserts, the Sahara has a major influence on weather across the Western Hemisphere.

How a Tropical Storm Starts A-Brewin'

The role the Sahara Desert plays in hurricane development is related to the easterly winds (coming from the east) generated from the differences between the hot, dry desert in north Africa and the cooler, wetter, and forested coastal environment directly south and surrounding the Gulf of Guinea in west Africa. The result is a strong area of high altitude winds commonly called the African Easterly Jet. If these winds were constant, we would also experience fewer hurricanes. However, the African Easterly Jet is unstable, resulting in undulations in a north-south direction, often forming a corresponding north to south trough, or wave, that moves westward off the West African Coast. When these waves of air have enough moisture, lift, and instability, they readily form clusters of thunderstorms, sometimes becoming correlated with a center of air circulation. When this happens, a tropical cyclone may form as the areas of disturbed weather move westward across the Atlantic. Throughout most of the year, these waves typically form every two to three days in a region near Cape Verde (due west of Africa), but it is the summer to early fall when conditions can become favorable for tropical cyclone development. Not all hurricanes that form in the Atlantic originate near Cape Verde, but this has been the case for most of the major hurricanes that have impacted the continental United States.

The given statement is False.  

Africa was not covered with glaciers during the Pleistocene ice age. Africa was divided into different parts and some part of Africa was was greener and full of different kinds of species.

The tropical Africa had 5 degree less than the temperature of the Africa right now. There were different plant and animals species present at that time.

Africa was not covered by glaciers during the Pleistocene ice age. The ice sheets and glaciers primarily covered regions in the Northern Hemisphere, such as North America, Europe, and parts of Asia. The statement is False (F).

Africa, located near the equator, experienced climatic changes during the Pleistocene but did not have extensive glaciation. During the Pleistocene epoch, which lasted from about 2.6 million to 11,700 years ago, Earth experienced a series of ice ages characterized by the growth and retreat of large ice sheets and glaciers. However, Africa did not have extensive glaciation during this time period.

Africa's position near the equator played a significant role in its climate during the Pleistocene. The equatorial region generally experiences warmer temperatures compared to higher latitudes, making it less conducive to the formation and maintenance of large-scale ice sheets.

Instead, Africa had more arid and semi-arid conditions in certain regions, with changes in the distribution of vegetation and the presence of large lakes in some areas. Therefore, the statement is False (F).

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i think the answer is (C

Surface water changes into a gas and enters the atmosphere.

Answer: water enters gas changes

Explanation:

The cell cycle is a series of phases that results in the formation of new cells. The cycle helps in the growth, repair, and reproduction of cells of organisms. Thus, option A is correct.

A cell cycle is a division of the old parent cell through a series of stages to produce two new daughter cells. It includes G1, S, G2, and M stages, where the cell replicates, grows, and divides.

The formation of the new cells results in increased growth, replaces the old and damaged cells with new cells, and also is important in the formation of the gametes that are essential for reproduction.

Therefore, the cell cycle is involved in growth, repair, and reproduction.

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Answer:

a

Explanation:

edge 2023

the great wall of china

Geographical isolation can be defined to a population of plants, animals or some other organism that is separated by the exchange of genetic materials with other organism of the same species.

Geographical isolation is the caused intentionally or by coincidence. Gene flow can be caused naturally or man made. The naturally occurring barriers are mountains, deserts and mountains et cetera.

The man made barriers such as the great wall of china acts as the barrier for the plant species. Example: Ziziphus jujuba, prunus and some species grow only on the other side of the wall.

Answer: C.Lymphocytes

Reasoning: Lymphocytes- a group of small white blood cell with a single round nucleus.

The definition of the word should tell it, referring to the fact white blood cells are the key to the immune system.

The correct answer is option C.The immune system is primarily dependent on lymphocytes to carry out its functions, which include recognizing and destroying pathogenic invaders and malignant cells. Lymphocytes, including B cells and T cells, are essential for the adaptive immune response, while macrophages and natural killer cells play critical roles in the innate immune response.

The correct answer to which does the work of the immune system is C. Lymphocytes. Lymphocytes are a type of white blood cell that are a key component of the immune system. Their main function is to identify and help destroy infectious invaders such as viruses and bacteria.

Lymphocytes are responsible for the specific immune response which is essential for long-term protection against diseases. There are mainly two types of lymphocytes involved in the immune response: B cells and T cells. B cells are responsible for producing antibodies that bind to specific antigens on pathogens, marking them for destruction, while T cells destroy infected host cells, coordinate the immune response, and help activate B cells.

Macrophages, which are part of the innate immune system, can phagocytize pathogens and produce chemicals that promote inflammation. Furthermore, natural killer cells, a part of the innate immune response, use MHC I molecules to identify and destroy compromised cells.

The answer is B, even though it is not technically correct.  The term "cold-blooded" is a misnomer as it applies to reptiles.  Reptiles are poikilothermic, which means they have to absorb heat from the environment in order to maintain metabolic functions.  Without enough heat, they become lethargic, and are unable to digest their food.

its b  reptiles are cold blooded  

The answer for 4 is B

E. coli is C.) a bacterium that normally typically resides in a warm blooded creatures intestines or in the environment and food.

Is called autotroph organisms that create organic molecules needed for survival from inorganic sources. this is achieved through photosynthesis (which is light energy) or chemosynthesis (which is chemical energy).

And photosynthesis is when autotrophs capture and convert the light energy from the sun into usable chemical energy (which is their food).

i just answered the same question like 20 min ago XD

Organisms that make their own food are called autotrophs. They can be either photoautotrophs, which use photosynthesis to create energy from sunlight, or chemoautotrophs, which derive energy from inorganic compounds through a process called chemosynthesis.

Organisms that can make their own food are called autotrophs. There are two main types, photoautotrophs, and chemoautotrophs. Photoautotrophs, which include plants, algae, and cyanobacteria, harness energy from sunlight to turn inorganic materials, such as carbon dioxide and water, into organic compounds like glucose, a process called photosynthesis. An example of this are plants, which are crucial to ecosystems because they supply energy for other organisms.

Chemoautotrophs, on the other hand, produce their own energy by extracting it from inorganic chemical compounds. This unique group of bacteria creates sugars not by using sunlight, but rather by utilizing energy from inorganic compounds

These organisms rely on other processes, such as chemosynthesis, to manufacture their food.

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The correct answer is D

Chimpanzees have different trait from one another because they have different genes. The different sub species of chimpanzee has different traits such as color of eyes, hair pattern, and many more. It is so because every gene expresses for a different character.

The difference in traits are due to the different genes present in them.

Answer:

d) they have different genes

Explanation:

i hope this helps

Cellular respiration contributes to the carbon cycle by animals consuming oxygen and organic matter, producing carbon dioxide that gets released into the atmosphere. This carbon dioxide is then absorbed by plants and used in photosynthesis, releasing oxygen that is then used again by the animals.

Cellular respiration plays a fundamental role in the carbon cycle. During this process, organisms, predominantly animals, consume oxygen and organic matter, like carbohydrates, and produce carbon dioxide as a by-product. This carbon dioxide is released back into the atmosphere.

The released carbon dioxide is then absorbed by plants for the process of photosynthesis, which in turn release oxygen that is used again by animals for respiration. Thus, the process of cellular respiration bridges the essential parts of the carbon cycle, ensuring a continuous flow of carbon in the environment.

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Cellular respiration involves [Option C ] animals producing carbon dioxide as they generate energy from organic molecules.

Answer:

metaphase II

Explanation:

The image shows the presence of chromosomes at the equator of the cell. Each chromosome is shown to have two sister chromatids. Chromosomes are not arranged on the equator in pairs but are present in as a single chromosome. Since no chromosome pairs but the single chromosomes are aligned at the equator of the cell, the phase is metaphase II.

The model represents C. metaphase I of meiosis.

The model represents metaphase I of meiosis. In metaphase I, homologous chromosome pairs align along the equator of the cell. This is different from metaphase II, where individual chromosomes align along the equator. Metaphase I is a stage of meiosis, a specialized cell division process that reduces the chromosome number by half to create haploid cells (gametes).

During metaphase I, homologous pairs of chromosomes, one from each parent, align at the cell's equatorial plane or metaphase plate. This alignment ensures that when they separate during anaphase I, each daughter cell receives one chromosome from each pair, contributing to genetic diversity in the resulting gametes.

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Your answer would be B. Lead is a better conductor of heat than iron. Hope this helps! :D

Answer:

Question 11 - A Matter and Energy are recycled

Question 12 - B Carbon Dioxide

Hope this helps! :)

The surface area-to-volume ratio of a cell decreases as the cell grows larger, due to the surface area increasing by the square of its radius and the volume increasing by the cube of its radius. This decrease in ratio is vital for cell efficiency and function, especially in eukaryotic cells where compartmentalization and specialization help manage this challenge.

As a cell gets larger, its surface area-to-volume ratio decreases. This is due to the mathematical relationship between the surface area and volume as a shape increases in size. For a cell, the surface area grows by the square of its radius, while the volume grows by the cube of its radius, resulting in an exponential disparity between them as the cell size increases. Consequently, when considering a cell's growth, the correct answer to the question is (C). decreases.

An increase in cell volume without a proportionate increase in surface area leads to a decreased ratio, impacting the cell's efficiency in exchanging materials and nutrients through its membrane. It is crucial for cells to maintain an optimal surface area-to-volume ratio to ensure effective diffusion and cellular function. In the context of eukaryotic cells, which are typically larger than prokaryotic cells and contain organelles such as mitochondria and ribosomes, maintaining this ratio is handled through increased compartmentalization and specialization.

Correct option is C. The space shuttle travels within the thermosphere, which is above the mesosphere and below the exosphere, at altitudes up to 600 kilometers above Earth.

The space shuttle travels in the thermosphere, which is the layer above the mesosphere. The thermosphere extends to about 600 kilometers (372 miles) above the Earth's surface, with temperatures increasing as altitude increases. This is the layer where the International Space Station orbits and where phenomena such as the northern and southern lights occur. Beyond the thermosphere lies the exosphere, where air molecules are sparse and can escape into space.