Explain the mechanism of respiration system in toad

Answer:

The sickle-cell allele is maintained through natural selection because of something called the heterozygote advantage.

Explanation:

Hope it helps

The pairing of complementary strands of DNA due to hydrogen bonding is called semi-conservative replication.

The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication.  All living things replicate their DNA, which is the primary mechanism for biological inheritance. This is necessary for:

A double helix (two linear strands that run counterclockwise and twist together) of two complementary strands makes up DNA.

These strands are split apart in the replication process. The mechanism of semiconservative replication uses each strand of the original DNA molecule as a template to create its counterpart. The new helix will be made up of an original DNA strand as well as a freshly synthesized strand as a result of semi-conservative replication.

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Answer and Explanation:

In order for an organism to undergo cellular respiration, the following is needed:

Oxygen: Cellular respiration is an aerobic process that requires oxygen to produce energy in the form of ATP.

Glucose: Glucose is the primary fuel for cellular respiration. It is broken down in a series of enzymatic reactions to release energy.

Enzymes: Enzymes are biological catalysts that are needed to speed up the chemical reactions involved in cellular respiration.

Mitochondria: Cellular respiration occurs in the mitochondria, which are specialized organelles that produce ATP.

In summary, cellular respiration requires oxygen, glucose, enzymes, and mitochondria to produce energy in the form of ATP.

Answer:

glycolysis is the process produce 38ATP of energy per glucose

Geothermal energy

Geo= Earth etc

Thermal= Heat

Answer:

Most likely 2

Explanation:

Have a great day

Answer:

No specific test exists to diagnose Parkinson's disease. Your doctor trained in nervous system conditions (neurologist) will diagnose Parkinson's disease based on your medical history, a review of your signs and symptoms, and a neurological and physical examination.

Answer:

They became careless and transferred to every body saying i cant all of us has to die

narcotic are illegal drugs is a true statement.

Option A is correct

The term narcotic originally referred medically to any psychoactive compound with numbing or paralyzing properties

Chemicals with an intense physiological effect, such as drugs and psychoactive chemicals, modify brain function and momentarily affect perception, mood, and feelings.

Due to their detrimental effects on the body and human health, drugs are outlawed in the majority of nations around the world. Heroin and cocaine, which are deadly narcotics, cause the most severe addiction.

Drug dependence results in both physical and mental dependence.

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Complete question:

. Narcotics are illegal drugs

A. O True

B. O False

Answer:

Explanation:

In Mirabilis jalapa also known as the 4'o clock plant, flower colour shows incomplete dominance that is why the F1 plant obtained by the crossing of pure Red flowered plant(RR) with pure white flowered plant(rr) shows pink flowers(Rr).

When F1 plant(Rr) is crossed is with pure white flowered plant (rr), the plant obtained would have a genotype of Rr and rr in ratio 2:2

While the phenotype will be 2 pink and 2 white at of 2:2

The phenotypic ratio of the offspring will be 2:2

Rr × rr

!

Rr Rr rr rr

Explanation:

Answer:

Explanation:

T-tubules are invaginations of the plasma membrane, which are present exclusively in striated muscle. Their role is to maintain the SR calcium store under the tight control of membrane depolarization via the voltage sensor channel DHPR .

Answer:

Yes, the types of rocks and minerals found in a particular area can influence the characteristics of the soil. This is because soil formation is a complex process that involves the weathering and breakdown of rocks and minerals over time.

For example, if an area has a high concentration of granite rocks, which are composed of minerals such as quartz, feldspar, and mica, the resulting soil may be sandy or gritty in texture and have a higher pH due to the presence of minerals that do not easily break down. On the other hand, if an area has a high concentration of limestone rocks, which are composed of calcium carbonate, the resulting soil may be alkaline and have a higher fertility due to the presence of easily broken down minerals.

In addition, the type of rocks and minerals in an area can also influence the structure of the soil. For instance, if an area has a high concentration of clay minerals, which are formed from the weathering of silicate rocks such as feldspar and mica, the resulting soil may have a higher water-holding capacity and be more susceptible to compaction.

Therefore, the type of rocks and minerals in an area can have a significant impact on the characteristics of the soil, including its texture, structure, and pH, as well as its fertility and water-holding capacity.

Explanation:

Answer:

B) presence of a nucleus

Presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.

Prokaryotes are defined as those organisms which possess cells that lack membrane bound organelles. These are usually single cell organisms. Some examples of prokaryotes include bacteria, archaea, and cyanobacteria (blue-green algae).

Eukaryote are defined as those organisms which possess membrane bound organelles. These contain a central nucleus which is surrounded (bound) by a membrane called nuclear envelope. Some examples of eukaryotes include animals, plants, fungi, and protists.

Thus, the presence of a nucleus will be most helpful in classifying a cell as either prokaryotic or eukaryotic. So, the correct option is B.

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Answer:

Genetic inheritance

Explanation:

thats just what it is

cell is the correct ans

Answer:

The condensed form of DNA that can be seen with a microscope as it prepares for cell division is called chromatin.

Explanation:

The agent which are able to break a Nitrogen triple bond are:

The process by which the triple bond between two Nitrogen atoms in a nitrogen molecule is broken apart is termed "nitrogen fixation".

Upon split, the nitrogen atoms are able to bond to oxygen in the atmosphere, and become fixed in the process of nitrogen dioxide formation.

Additionally, humans are able to break the nitrogen triple bond by means of chemical processes.

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Answer:

It makes lipids, phospholipids as in plasma membranes, and steroids.

Explanation:

Answer

software

Explanation:

On the Structure of Compact Bone, the order of labelling are:

The photomicrograph shows a cross-section of a Haversian system, which is the basic unit of compact bone. The Haversian system consists of a central canal surrounded by concentric layers of bone called lamellae.

The osteocytes are located in lacunae that are arranged in rows along the Haversian canal. The canaliculi connect the lacunae to each other and to the Haversian canal. The central canal contains blood vessels and nerves that supply the osteocytes. The compact bone is arranged in columns called osteons.

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Answer:#69

Explanation:My name is Walter Hartwell White. I live at 308 Negro Arroyo Lane, Albuquerque, New Mexico

Answer:

Explanation:

1. Collect cheek cells

2. Burst cells open to release DNA

3. Isolate concentrated DNA

4. Separate DNA from proteins and debris

Answer:

slightly after 1990 (when it was 354.19)

Answer:

It means that unavoided modification has accumulated on the original version.

Explanation:

When an engineer at a transmission station reports receiving noise, it means that they have detected unwanted and disruptive signals or interference in the transmission system. This noise can manifest as electrical disturbances, random signals, or other forms of electromagnetic interference that disrupt the quality and clarity of the transmitted information or data.

Receiving noise in a transmission system can have various causes, including environmental factors, electrical equipment malfunctions, electromagnetic interference from nearby sources, or signal degradation during transmission. It is essential for the engineer to identify and address the source of the noise to ensure the integrity and reliability of the transmitted signals. This may involve troubleshooting the equipment, adjusting signal filters, implementing shielding measures, or improving the overall transmission system design to minimize noise and maintain signal quality.

So, I think the bottom left is the right one.

A cell is placed in a saltwater solution. The water inside the cell will leave the cell, decreasing the size of the cell, meaning that the saltwater solution is hypertonic to the cell (option A).

Osmosis is the net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.

If a cell is placed in a saltwater solution, it means the concentration of the solute outside the cell is more than that of the cell.

As a result, water will leave the cell (higher concentration) to the extracellular salt solution. It can be said that the salt solution is hypertonic.

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Answer:

As a key enzyme regulating postprandial blood glucose, α-Glucosidase is considered to be an effective target for the treatment of diabetes mellitus. In this study, a simple, rapid, and effective method for enzyme inhibitors screening assay was established based on α-glucosidase catalyzes reactions in a personal glucose meter (PGM). α-glucosidase catalyzes the hydrolysis of maltose to produce glucose, which triggers the reduction of ferricyanide (K3[Fe(CN)6]) to ferrocyanide (K4[Fe(CN)6]) and generates the PGM detectable signals. When the α-glucosidase inhibitor (such as acarbose) is added, the yield of glucose and the readout of PGM decreased accordingly. This method can achieve the direct determination of α-glucosidase activity by the PGM as simple as the blood glucose tests. Under the optimal experimental conditions, the developed method was applied to evaluate the inhibitory activity of thirty-four small-molecule compounds and eighteen medicinal plants extracts on α-glucosidase. The results exhibit that lithospermic acid (52.5 ± 3.0%) and protocatechualdehyde (36.8 ± 2.8%) have higher inhibitory activity than that of positive control acarbose (31.5 ± 2.5%) at the same final concentration of 5.0 mM. Besides, the lemon extract has a good inhibitory effect on α-glucosidase with a percentage of inhibition of 43.3 ± 3.5%. Finally, the binding sites and modes of four active small-molecule compounds to α-glucosidase were investigated by molecular docking analysis. These results indicate that the PGM method is feasible to screening inhibitors from natural products with simple and rapid operations.

Explanation:

Diffusion wether be molecular or cellular implies the passage of a chemical species from a high concentration to low concentration, now in molecular diffusion there is no need to pass through a membrane, meanwhile, in cell diffusion, there is a passage through a semipermeable membrane. In this case, we have no cellular process listed or membranes involved, so we will stick to the molecular diffusion. Now with this definition, we can say that the correct answer is option A, because glucose molecules move from high concentration (sugar cristal) to low concentration (rest of the coffee).

Answer:

The worlds developing regions will see 1.2 billion people added, a 20.7% increase; while the population of developed countries will increase a mere 3.3% adding 41 million to the current 1.3 billion people. ... There is a difference of more than ten years between the median age in developing and developed regions.

The population growth rate in industrially developed countries is much lower than that in developing countries.

The population growth rate is the number of births per 1,000 people in a population in a year. The population growth rate in industrially developed countries is typically around 1%, while the population growth rate in developing countries is typically around 2%.

There are several reasons why the population growth rate is lower in industrially developed countries. First, people in industrially developed countries tend to have fewer children. This is due to a number of factors, including the availability of birth control, the increasing participation of women in the workforce, and the rising cost of raising children.

Second, people in industrially developed countries tend to live longer. This is due to advances in medicine and healthcare. As a result, the number of people in the population who are of childbearing age is lower in industrially developed countries than in developing countries.

The lower population growth rate in industrially developed countries has a number of implications. First, it means that the population in these countries is aging. This is because the number of people who are of working age is shrinking, while the number of people who are retired is growing.

Second, the lower population growth rate means that there is less pressure on resources such as land, water, and food. This can help to reduce poverty and improve the standard of living in these countries.

However, the lower population growth rate also means that there is a smaller pool of workers to support the economy. This can lead to labor shortages and economic problems.

Overall, the lower population growth rate in industrially developed countries has both positive and negative implications. It is important to carefully consider these implications when making policy decisions.

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