T/F ttx resistance originated as a mutation in the nucleotide sequence of gene that codes for sodium channels in the skeletal muscles of snakes.

Hello. This question is incomplete. The full question is:

A student prepared two beakers with identical sprigs of a water plant as shown below. She placed Beaker A in the shade and the Beaker B beside a fluorescent lamp. She then systematically changed the distance from the beaker to the lamp. She counted the bubbles given off by the plants in each beaker.  

If the student later tested the bubbles collected in the test tube, What would she find they are made of?

Answer:

oxygen

Explanation:

The bubbles are oxygen and we can say that because this is the gas that plants release through photosynthesis. In this case, we can also confirm that the plant that was exposed to fluorescent light, showed more bubbles than the other plant, since the light allowed the photosynthetic rate of this plant to be higher, releasing more oxygen to the environment.

Answer:

xx homogeneous recessive

Answer:

Decellularization is the process used in biomedical engineering to isolate the extracellular matrix (ECM) of a tissue from its inhabiting cells, leaving an ECM scaffold of the original tissue, which can be used in artificial organ and tissue regeneration. Organ and tissue transplantation treat a variety of medical problems, ranging from end organ failure to cosmetic surgery. One of the greatest limitations to organ transplantation derives from organ rejection caused by antibodies of the transplant recipient reacting to donor antigens on cell surfaces within the donor organ. Because of unfavorable immune responses, transplant patients suffer a lifetime taking immunosuppressing medication.

Answer:

Explanation:

cystic fibrosis can be genetic an example: (CFTR) gene cause the CFTR protein to become dysfunctional.

21 cm radio waves are a valuable tool for galactic astronomers, and they can provide us with a wealth of information about the Milky Way and the Universe beyond.

21 cm radio waves are an important tool for galactic astronomers for various reasons. These waves can penetrate through the dusty cocoons that surround the stars, allowing astronomers to observe star birth and formation, which would be otherwise obscured by the dust. This is one of the reasons why option a is correct.

Moreover, these radio waves can also be reflected off the core of the galaxy, providing us with important information about the structure and dynamics of the Milky Way. This reflects option b, which is also true.

Another useful aspect of 21 cm radio waves is their Doppler shift, which can be used to map the motions and locations of spiral arms. The Doppler effect occurs when there is a relative motion between the source of waves and the observer, and the frequency of the waves changes as a result. This allows us to measure the velocity of the gas in the galaxy, which is useful in mapping the spiral arms, which in turn, confirms option c.

In addition, 21 cm radio waves can also be used to bounce off stars like our Sun, allowing us to accurately measure their distances. This method is called radio parallax, and it is more accurate than other methods that rely on optical telescopes. This corresponds to option d.

Finally, these radio waves can also be used to detect cool, dark matter that cannot be observed with optical telescopes. This reflects option e.

learn more about astronomers here

https://brainly.com/question/27378666

#SPJ11

Answer:

sugar

Explanation:

Answer:

Check the attached document. The system rejected the answer because it contained certain words considered obscene, including the pen*s

Explanation:

When examining the skull of a 4-month-old baby, you should normally find is option B. closure of the posterior fontanel.

The anterior fontanelle (the soft spot on the top of the head) is still present and open at 4 months of age, and it will not close until around 18 months of age. The posterior fontanelle, located at the back of the head, however, usually closes by 2 months of age. Ossification of all sutures and cranial bone overlap are unusual at this age and may indicate abnormal skull development or premature closure of the fontanelles.

Closure of the posterior fontanel in a 4-month-old baby is normal. The lambda, or posterior fontanelle, is a diamond-shaped soft spot at the back of the head where the parietal and occipital bones meet. It is typically 0.5 to 1.0 cm in size and closes between the ages of 2 and 3 months.

The posterior fontanelle closes as the bones of the skull grow and fuse together, which is a normal part of skull development. The fontanelles act as "windows" in the skull bones, allowing for flexibility and growth during childbirth and early infancy. The fontanelles close and the bones become more solid as the skull grows and matures.

If the posterior fontanelle remains open after 3 months or appears to be growing larger, it may indicate a cranial abnormality and should be evaluated by a healthcare provider.

For more question on posterior fontanel click on

https://brainly.com/question/13678442

#SPJ4

Explanation:

The excretory organ in our body are :

\(...\)

Symptoms of this condition include paralysis of the stomach muscles. Muscles are controlled by nerve impulses, therefore the most likely cause for this condition is (A.) damage to nerves that control the stomach

B. lack of pancreatic juices and bile -> this will lead to food not being chemically brokend down properly in the stomach and oils not mixing with water leading to malnutirion

C. Lack of enzymes in the small intestine -> this will also lead to food not being chemically digested and malnutrition

Proteins functioning as enzymes exhibit precise specificity because they are highly organized at several levels of structure hierarchy. These levels of organization are responsible for specific molecular interactions.

The primary structure of a protein refers to the linear sequence of amino acids that make up the protein. The secondary structure of a protein refers to the proteins functioning arrangement of its amino acid residues into specific structures, such as alpha-helices and beta-sheet, due to hydrogen bonding between its peptide bonds. These structures are responsible for the stability and rigidity of the protein and play a role in its specific interactions with other molecules. This shape determines the active site, the region of the protein where specific reactions occur. The active site is responsible for the specificity of the protein's interactions with its substrate, the molecule on which it acts. proteins functioning as enzymes are highly organized at several levels of structural hierarchy, from the primary structure to the quaternary structure.

Learn more about Proteins functioning here:

https://brainly.com/question/10058019

#SPJ4

within 1-2 minutes sensory pathways for smell will accommodate and adapt to the smell.

To know more about sensory pathways  visit : https://brainly.com/question/25585487

#SPJ4

Answer:

true

Explanation:

because to domesticate animals we just picked the ones we wanted

The term for the number of viral particles in a suspension is viral forming units The term for the number of viral particles in a suspension is called viral forming units (VFU). A viral forming unit is the measure of the number of active virus particles in a sample.

The VFU is an estimate of the number of virus particles that can infect and produce the virus, based on the ability of the virus to produce a visible effect, or to form a plaque or other visible structure when grown in appropriate host cells.A plaque-forming unit (PFU) is used to measure the concentration of a virus in a sample. A plaque is a clearing that forms on a lawn of host cells when a virus infects and lyses the cells. The number of plaques is proportional to the number of infectious viral particles present in the sample.

A phage-forming unit (PFU) is a unit of measurement for the number of infectious bacteriophages in a suspension. Colony-forming units (CFU) are used to estimate the number of live bacterial or fungal cells in a sample. CFU is a measure of viable cells and is used to determine the concentration of cells in a culture. Bacterial-forming units are a measure of bacterial particles in a suspension or solution. Therefore, the correct answer to the question is viral forming units.

To know more about virus Visit;

https://brainly.com/question/13051239

#SPJ11

Near the equator, rising air is associated with a pressure zone known as the equatorial low.

What is equator?

Equator: A large circle that circles the planet evenly in all directions and that is perpendicular to the axis of the planet. The geographic Equator, also known as the terrestrial Equator, is the imaginary line on the surface of the Earth from which latitude is calculated; it is the line at 0° latitude. It separates the Earth into the Northern and Southern hemispheres.

A pressure region known as the equatorial low is connected to rising air close to the equator. This type of zone experiences rainy weather and weak wind movement. One of the hottest places in the planet is there. A low-pressure area is also produced by it. Equatorial lows and doldrums are some names for it.

Hence Equatorial low is the appropriate answers.

To learn more about equator from the given link

https://brainly.in/question/757427

#SPJ9

Photosynthesis is a redox reaction where carbon dioxide is reduced and water is oxidized.

Explanation

Oxidation-reduction reactions are reactions in electrochemical processes. Reduction is the reaction of decreasing oxidation number and increasing electrons, so it can be said that the reduction reaction is the reaction of a substance when it loses oxygen. Oxidation is the reaction of increasing oxidation and decreasing electrons, so it can be said that the oxidation reaction is the reaction of a substance when binding oxygen.

One of the oxidation-reduction reactions naturally occurs in everyday life is photosynthesis. The complex process of photosynthesis involves green plants and certain bacteria. In photosynthesis, carbon dioxide is reduced to carbohydrates and water is oxidized to oxygen.

The oxidation-reduction reaction in photosynthesis is:

6CO₂(g) + 6H₂O(l) + energy --> C₆H₁₂O₆(aq) + 6O₂(g)

Learn more about oxidation-reduction reactions on

#SPJ4

Answer:

For effect #1, the mutation will become more common (A). This is because with the organism having more children, the trait will be passed around much faster and will spread to surrounding groups of animals.

For effect #2, the mutation will become more common (A). This is because the disease will kill the animals who do not carry the gene leaving only the animals with the trait, making it much more common

For effet #3, the mutation will disappear (B). This is because the animal carrying the gene will slowly die off. After all,  they will not be able to reproduce and pass the gene to their children.

For effect #4, the mutation will remain at a low level (C). This happens because since it procures no change there will be no reason to transfer it so it will become a recessive trait in the animals.

Explanation:

Hope this helps. . . <3

The question is incomplete,below is the complete question.

Mr. B has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. But when he arrives, he is in severe respiratory distress. He says "I felt better before I came into the ER! Is this tube doing anything?"

You tell the Clinical Nurse Specialist (CNS). As the two of you move him into the bed, you notice that his chest tube bottle is lying on its side on the gurney, with air going into it. When you point this out to the CNS, she immediately grabs the bottle and sets it upright on the floor. You see air start bubbling through the fluid right away. "That was the problem!" she says. "They lost the water seal, and air was going into his chest from the bottle. You would not believe how many times that happens on transport." When you examine Mr. B, you have trouble detecting his lung sounds on the left. Even stranger, his apical heart sound is in the wrong place - it is over toward the right side of his chest. His respiration rate and heart rate are both increased, and he is struggling to breathe. "Let's give him a little oxygen. He'll be a lot better in a half-hour," says the CNS. "Check back on him."

QUESTION - Why would accumulation of air in his pleural space cause his heart sounds to be in the wrong place?

Accumulation of air in Mr B pleural space will cause his heart sound to be heard in the wrong place because the left side is his chest is being filled up with air making the organs in his chest to to be pushed over to the right side.

Answer:

B. Doctoral degree

Explanation:

Answer:

1.The difference between these two types of resources is that renewable resources can naturally replenish themselves while nonrenewable resources cannot. This means that nonrenewable resources are limited in supply and cannot be used sustainably.

2. Potentially renewable resources include wood and biofuel. Nondepletable resources include wind, solar, hydroelectric, and geothermal energy.

3. They often serve important ecological functions, provide coastal protection, and are critical resources for food, energy, tourism and economic development. In many parts of the world, such marine and coastal systems are under stress or are threatened from a variety of sources, both human and natural.

We have to know that the central dogma of the molecular biology is about how the information flows from DNA to proteins. This way we have the following:

We can see here how the 2nd step of the central dogma is the transduction from

Answer:

Nitrate.

Explanation:

Nitrogen Assimilation in plants is the process of plants absorbing nitrogen from the soil in the form of nitrate (NO3-) and ammonium (NH4+).   This nitrate is usually the predominant form of the available nitrogen that is absorbed by the plant.  

Hope this helps!

Recessions tend to disproportionately affect consumer durables, such as appliances and vehicles, as well as consumer non-durables, such as clothing and food.

The demand for consumer durables is more easily postponed, as people can hold off buying these items until the economy has recovered, while consumer non-durables must be bought more regularly. Businesses also tend to reduce their inventories during recessions, meaning they often purchase fewer supplies or materials. This decrease in demand leads to a decrease in prices and puts pressure on producers of these goods.

Investment goods, such as machines, are also affected by recessions as businesses postpone investing in capital equipment and hire fewer workers. Furthermore, investment goods can often be imported from other countries, meaning the demand for these items is more easily affected by international economic forces. In conclusion, recessions often lead to decreased demand for consumer and investment goods, causing a decrease in prices and putting pressure on producers.

To learn more about Consumer :

https://brainly.com/question/28241932

#SPJ11

The height of the tower is approximately 30.625 meters. We can use the equation of motion for free fall: h = (1/2) * g * t^2

To determine the height of the tower, we can use the equation of motion for free fall:

h = (1/2) * g * t^2

where:

h is the height of the tower,

g is the acceleration due to gravity (approximately 9.8 m/s^2),

t is the time taken for the rock to fall (2.5 s).

Plugging in the values, we have:

h = (1/2) * 9.8 * (2.5)^2

h = 1/2 * 9.8 * 6.25

h = 30.625 meters

Therefore, the height of the tower is approximately 30.625 meters.

To learn more about Free fall click here

https://brainly.com/question/853248

#SPJ11

Answer:

The offspring of sexually reproducing organisms are all genetically unique. Because of this, sexually reproducing organisms may have more successful survival of offspring in environments that change than asexually reproducing organisms, whose offspring are all genetically identical.

The body converts organic compounds called carbohydrates into sugars.

Carbon, hydrogen, and oxygen make up the organic molecules that make up carbohydrates. For the majority of organisms, carbohydrates serve as their main source of energy. The primary source of energy for cells is the sugar glucose. An organic substance called a carbohydrate, like sugar or starch, is used to store energy. Like the majority of organic compounds, carbohydrates are made up of tiny, recurrent units that join together to form larger molecules. The tiny repeating units in the case of carbohydrates are referred to as monosaccharides. One of the three main sources of energy for our body is carbohydrates, which are macronutrients.

To learn more about carbohydrates click  here:

https://brainly.com/question/4839795

#SPJ4

Answer:

Power plants release the majority of sulfur dioxide and much of the nitrogen oxides when they burn fossil fuels, such as coal, to produce electricity. In addition, the exhaust from cars, trucks, and buses releases nitrogen oxides and sulfur dioxide into the air. These pollutants cause acid rain.

Taxol is a chemotherapy drug that stabilizes microtubules, which are important for the separation of chromosomes during cell division. During anaphase of mitosis, the microtubules shorten, 3

pulling the chromosomes apart. If taxol were added during anaphase, it would prevent the microtubules from shortening, which would ultimately stop the separation of chromosomes. This would lead to either a complete stop in anaphase events or only anaphase A or B being affected, depending on which microtubules are primarily responsible for pulling the chromosomes apart. The chromosomes would still appear normal since they would remain attached to the microtubules. However, the lack of proper chromosome separation could lead to abnormal cell division and potentially cell death. Taxol stabilizes microtubules so they cannot shorten, but can still grow. If taxol were added during anaphase of mitosis,

Learn more about  taxol   here:

https://brainly.com/question/15860122

#SPJ11