How do the chromosomes at the end of meiosis i compare with the chromosomes at the end of meiosis ii?

Answer:

Damian here!(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

Explanation:

Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.

so its basically passive

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Answer:

the two ways in which plants use sugar made during photosynthesis are A and B.

Explanation:

A. plants need further energy to carry out their major functions like - respiration and transpiration for which they need sugar obtained during photosynthesis .

B. plants need starch and cellulose as a food which are also sugar products.

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The two ways in which plant cells use sugar made in photosynthesis are to store energy for life processes and to make complex sugar molecules. The correct options are A and B.

Plant cells utilize the sugars produced in photosynthesis in various ways.

They store some of the sugar as energy reserves for life processes. This storage is often in the form of starch or other complex carbohydrates, which can be broken down later to release energy as needed.

The sugars are also used to synthesize more complex molecules. These include polysaccharides like cellulose, which form the structural components of the cell wall, as well as other carbohydrates such as sucrose, which are used for transport and energy storage within the plant.

During photosynthesis, plants use carbon dioxide from the environment along with sunlight and water to produce sugars.

Hydrogen ions are involved in certain cellular processes, such as ATP synthesis during cellular respiration, but their production is not directly linked to the utilization of sugars.

Thus, the correct options are A and B.

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Answer:

An insertion, as related to genomics, is a type of mutation that involves the addition of one or more nucleotides into a segment of DNA. An insertion can involve the addition of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome.

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Answer:

observation : a toaster doesn't work

question : is something wrong with the electrical outlet

hypothesis : something is wrong with the outlet my coffee maker also won't work and plug into it

experiment : I plug my coffee maker into the outlet

result : a coffee maker works

2nd result : my toaster is broken

Puppies from pet stores have been linked to a new outbreak of drug-resistant bacteria.

what exactly was virus ?

A virus is an infectious microorganism made up of a segment of nucleic acid (either DNA or RNA) wrapped by a protein coat. A virus cannot replicate on its own; instead, it must infect cells and use host cell components to replicate. Viruses frequently kill host cells, causing harm to the host organism. AIDS, COVID-19, measles, and smallpox are all well-known examples of viruses that cause human disease.

Viruses that infect bacteria and are frequently referred to as phages have the greatest number. They have many of the same features, but they are far more plentiful. Much future research will focus on the mechanisms by which viruses infect people, as well as possible methods for inhibiting viral replication within human cells.

Puppies from pet stores have been linked to a new outbreak of drug-resistant bacteria.

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The percentage of tissue located in the bone marrow cavities of adults that is fat can vary depending on various factors, including age, sex, and overall health.  The correct option is B. 25%

However, in healthy adults, the typical range for fat content in the bone marrow is estimated to be around:

Approximately 25% of the tissue located in the bone marrow cavities of adults is composed of fat. This adipose tissue within the bone marrow serves various functions, including energy storage, insulation, and supporting hematopoiesis (the production of blood cells).

It is important to note that this percentage can vary and may be influenced by individual factors and health conditions. The correct option is B. 25%

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Answer:

Little patches

Explanation:

blue- violet

Little patches and blue- violet.

Sudan III is a bis(azo) chemical that has a 4-[(2 methylphenyl)diazenyl]phenyldiazenyl group replaced at position 1 of the 2-naphthol ring. a fat-soluble dye that can stain some protein-bound lipids in paraffin sections and is mostly used to show triglycerides in frozen sections.

It functions as a histology dye, a fluorochrome, and a carcinogen. It belongs to the class of azobenzenes, is a bis(azo) chemical, and is a naphthol. It is similar to a 2-naphthol in terms of function.

"It certainly does not mean, as many writers have assumed, that the lipid in question belongs to the carbohydrate-containing glycolipid (cerebroside) group.

Therefore, Little patches and blue- violet.

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Answer:

The answer is down

Explanation:

The deep density ocean currents aslo have a strong effect on the Earth's climate the water in the North Atlantic Ocean the water is cold and salty this colder salt water sinks because of its greater density then it flows through Southward deep in the ocean

I think this answer may help you .

The generalization that is true regarding the types of structures which is analyzed is that structure X (outer structure of an onion cell) and structure Y (outer structure of a human skin cell) have both examples of cellular membranes.

The Cellular membranes were present in different types of cells and promote as the outer boundaries or secured barriers of the cell. They promote the flow of fluid in and out of the cell and give a structural bar.

These membranes showed as a protector to safeguarding the major tissues and organs from external components such as pathogens, UV radiation, and water loss.

Although, these generalizations have both structure X and structure Y represent cellular membranes are true, which reflects the major role of membranes in prolonging the probity and functionality of cells in various organisms.

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Although part of your question is missing, you might be referring to this full question A scientist is comparing the outer structure of an onion cell, structure X, to the outer structure of a human skin cell, structure Y. Which generalization is true about the types of structures being examined?

According to the research, the correct option is c, If fertilization occurs the egg burrows into endometium.

It is the tissue that covers or upholsters the uterine cavity whose function is to receive the fertilized egg when pregnancy occurs, that is, it allows the implantation of a fertilized egg, which will later transform into a new being.

For the endometrium to carry out its function, it has to undergo a series of morphological and functional modifications linked to the secretion of hormones by the ovaries so that at the time of greatest receptivity, the endometrium has the thickness and the nutrients necessary for a correct interaction with the embryo.

Therefore, we can conclude that according to the research, the correct option is c, If fertilization occurs the egg burrows into endometium.

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Answer:

because nutrients cannot be stored in the soil for a long time  

Explanation:

In rainforests, high temperatures and humid conditions lead to the rapid decomposition of the organic matter in the soils, which releases nutrients rapidly. However, rainforest soils are poor in nutrients due to rains that wash dead organic material from them. Moreover, rainwater is filtered naturally into the ground, thereby extracting (leaching) nutrients off the surface.

The original experiment may be inaccurate and further experimentation is needed.

The accuracy of measurements depends on the quality of the measuring equipment and the skill of the scientists involved. For the data to be considered reliable the variability of the values ​​should be small. Repeated scientific research increases credibility. Results may change over the course of different studies or under different conditions.

It is therefore important that the experiment itself is reproducible. A reproducible experiment should but need not give the same results when performed by different people at different times and preferably under similar conditions. Repeating an experiment multiple times can help determine whether the data are random or normal. Avoid jumping to conclusions without sufficient evidence.

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Answer:

That word is Biodiversity

Answer:

I can give a example for you. For example, iron plus oxygen can become ferric oxide. Both elements change their names. The change is used to indicate the kind of bonding process that is taking place. When iron and oxygen become ferric oxide, the iron has lost electrons and the oxygen has gained the electrons that iron lost.

Explanation:

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The phenomena showed a ratio of 12, 3, 1 for combinations of two dogs (golden fur and black fur) as dominant epistasis.

The interаction between two dogs together, one with golden fur and one with black fur, color is recessive to no color аt one аllelic pаir. This recessive аllele must be expressed before the specific color аllele аt а second locus is expressed. Аt the first gene golden colored dog is dominаnt to the black colored dog, аnd the gene symbols аre G = golden аnd g = colored. Аt the second gene balck is dominаnt to golden, аnd the symbols used аre B = black, b = colored. If the dihybrid is selfed, three phenotypes аre produced in а 12:3:1 rаtio.

9 G_B_  Golden  Dominant golden allele negates effect of G allele

3 G_bb  Black  Dominant black allele negates effect of G allele

3 ggB_  Golden  Recessive color allele allows golden allele expression

1 ggbb  Black  Recessive color allele allows black allele expression

Becаuse the presence of the dominаnt G аllele mаsks the effects of either the B or g аllele, this type of interаction is cаlled dominаnt epistаsis.

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Yes, there can be differences in the conduction velocity values produced by different methods for the median nerve. The accuracy of a method depends on various factors, including the specific technique employed and the conditions under which the measurements are taken.

Method 1 may involve direct nerve conduction studies, where stimulating and recording electrodes are placed at specific locations along the median nerve to measure the conduction velocity. Method 2, on the other hand, could employ indirect measures, such as surface electromyography (EMG) or nerve conduction velocity estimation algorithms.

The accuracy of a method can be influenced by several factors, such as electrode placement, stimulation intensity, signal quality, and patient variability. Direct nerve conduction studies (Method 1) are generally considered more accurate as they directly measure the electrical conduction along the nerve. They provide precise information about the speed of nerve impulses. However, these studies can be invasive and require specific expertise.

Indirect methods like surface EMG or velocity estimation algorithms (Method 2) may provide an alternative non-invasive approach, but they might introduce some degree of estimation or approximation. They rely on measuring muscle activity or analyzing signals recorded at the surface of the skin. While they can be useful in certain situations, they may be less precise compared to direct measurements.

In summary, while the accuracy of each method depends on various factors, direct nerve conduction studies (Method 1) are generally considered more accurate for measuring conduction velocity due to their direct measurement of nerve impulses. However, the choice of method depends on the specific context, availability of resources, and the expertise of the medical professional conducting the study.

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The factor that is an endogenous factor is: d. Decision as to which herbicide would be best given the farm's IPM (Integrated Pest Management) strategy.

An endogenous factor refers to a factor that originates from within the system or process being studied. In the given options, the endogenous factor is d. Decision as to which herbicide would be best given the farm's IPM (Integrated Pest Management) strategy.

This factor is influenced by internal considerations and decisions made within the system itself. On the other hand, options a, b, and c are exogenous factors because they are external to the system and can affect the system but are not directly determined by it.

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Explanation:

kindly explain the question well, you can add a picture illustration if that will help.

the question is not sufficient for an answer now

Gregor Mendel, the father of modern genetics, conducted groundbreaking experiments with pea plants in the mid-19th century and made significant discoveries about the inheritance of traits. One of his notable findings was the concept of recessive genes.

In his experiments, Mendel observed that certain traits in pea plants appeared to disappear in the first generation (F1) but reappeared in the second generation (F2) in a predictable pattern. He referred to the disappearing traits as "recessive" and the traits that remained visible as "dominant."

Mendel's work focused on traits that exhibited a clear dominant-recessive relationship. For example, he studied traits like flower color (purple or white), seed texture (smooth or wrinkled), and seed color (yellow or green). Through controlled breeding experiments, Mendel discovered that traits could be inherited independently of each other and followed predictable patterns of segregation and independent assortment.

Mendel proposed that every individual has two copies of each gene, one inherited from each parent. These gene copies, now known as alleles, can be either dominant or recessive. Dominant alleles mask the presence of recessive alleles when present together. However, recessive alleles become visible when they are present in pairs, with no dominant allele to mask their expression.

Mendel's discovery of recessive genes provided insights into the mechanisms of inheritance. He formulated the Law of Segregation, stating that during gamete formation, the paired alleles segregate from each other randomly, with each gamete receiving one allele for a particular trait. This segregation leads to predictable ratios of dominant to recessive traits in subsequent generations.

Mendel's work laid the foundation for the modern understanding of genetics and the principles of inheritance. His insights into the existence and behavior of recessive genes revolutionized our understanding of how traits are passed from one generation to the next.

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What are steroid hormones?

However, less frequently, the adrenal cortex also secretes sex hormones, therefore this differentiation is not exclusive.

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The correct ordering of the steps of DNA transcription is as follows:

Step #1: DNA unzips

Step #2: RNA polymerase binds to the promoter region at the start of

the gene

Step # 3: Using DNA as a template, complimentary RNA bases are linked to form mRNA

Step #4: mRNA is released and DNA "re-zips"

Step #5: mRNA leaves the nucleus through the nuclear pore

DNA transcription is the process by which a region of the DNA called a gene, which contains the information about making a protein is used to make an mRNA molecule.

The mRNA molecule is then used to synthesize proteins at the sites of protein synthesis in the cytoplasm called the ribosomes.

The enzyme that is responsible for the synthesis of mRNA from a DNA template is called RNA polymerase.

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In animal cells, the transport of molecules across the plasma membrane is usually a one-way path. The plasma membrane of an animal cell is selectively permeable, which means it only allows certain molecules to pass through it. This ensures that the internal environment of the cell remains stable and does not fluctuate with the external environment.

There are several mechanisms by which molecules can be transported across the plasma membrane of animal cells, including diffusion, facilitated diffusion, active transport, and endocytosis/exocytosis. Each of these mechanisms is regulated in a way that ensures that molecules move in one direction only, thereby maintaining the stability of the internal environment of the cell.

For example, in active transport, molecules are transported against their concentration gradient, from an area of low concentration to an area of high concentration. This process requires the input of energy and is mediated by specific proteins called pumps. These pumps are regulated in such a way that they only transport molecules in one direction, ensuring that the internal environment of the cell remains stable.

Overall, the transport of molecules across the plasma membrane of animal cells is carefully regulated to ensure that it is a one-way path, maintaining the stability of the internal environment of the cell.

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Answer:

Capillary

Explanation:

Answer: C. Capillary Action

The characteristics of methanogens and related bacteria make them good candidates for being the first organisms. Their ability to use anaerobic respiration, produce methane, and form endospores enabled them to survive in harsh environments, which may have existed in the early Earth.

Methanogens and related bacteria could be the first organisms because they exhibit unique characteristics that make them good candidates for being the first organisms. These unique characteristics of methanogens and related bacteria have made them survive in harsh environments, which may have existed in the early Earth.

Below are the characteristics of methanogens and related bacteria that make them good candidates for being the first organisms.

Anaerobic metabolism: Methanogens and related bacteria are known to use anaerobic respiration to produce energy. In the early Earth, oxygen was not readily available; hence, these microorganisms were able to survive by using anaerobic respiration, which uses different electron acceptors to break down organic compounds.

Methanogenesis: Methanogens are known for their ability to produce methane as a by-product of anaerobic metabolism. The methanogenic archaea are unique among the living organisms because they are the only organisms that can produce methane. Their ability to produce methane could have played a critical role in the early Earth's atmosphere by providing a source of energy.

Endospore formation:  Endospores are a type of structure that is formed by some bacteria to withstand extreme conditions. Methanogens are known to be able to form endospores, which could have enabled them to survive extreme conditions that may have existed in the early Earth.

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Answer:

Explanation:

Penguins usually live on islands and remote continental areas free of terrestrial predators, where their inability to fly does not endanger their survival. Penguins are usually found near nutrient-rich cold water streams that provide plenty of food.

Answer:

Pedigrees are used by genetic counselors to study family history and search for trends that may indicate a risk in the family for genetic abnormalities or health-related conditions.

Answer:

a

Charles Darwin

Explanation:

Answer:

The second scenario, "Beetles of a different color", is an example of evolution.

Explanation:

Since evolution is defined as a change in gene frequency overtime, over generations, it is in the second example that we see such a phenomenon taking place. Brown beetles have become more common as opposed to the green beetle population that were the ancestors in this case.

Hope that answers the question, have a great day!

Answer:

For the answer to the question above, asking if One side of your face is identical to the other side. Then you are bilaterally symmetrical.

I hope my answer helped you. Feel free to ask more questions. Have a nice day!

Explanation:

Answer:

Bilaterally symmetrical

Explanation:

From my understanding, radially symmetrical means identical halves around the central axis.

Asymmetrical means not symmetrical at all

Leaving us with Bilaterally symmetrical, which is basically identical parts but as right and left.

That's the best i can explain so there is a diagram to help understand.

Answer:

The answer is B. Mergus serrator and Mergus merganser

Explanation: