What type of system is required to maintain the amount of sugar in the blood at a certain level, making sure it does not rise too high or fall too low?
A.one negative and one positive feedback loop
B.two positive feedback loops
C.one negative feedback loop
D.two negative feedback loops

Answer:

1. The cells which are dead in the plants are called cork cells or phellem. The chemical content which is present in the walls of cork cells is suberin which makes the water and gases of the cells impermeable. The chemical layer of suberin forms a barrier for the movement of water and solute molecules. It also protects the plants against infection by various microorganisms and heat exposure.

2. Suberin is the component that is present in the cork cells. The internal tissues prevent the evaporation of cork cells. At the time of maturity, the cork cells become dead and replace the epidermis layer of the stem or root with the outer boundary. The suberin does not allow the water and gases to go outside of the cork cells. It is overall protecting cork cells that are present on the bark of trees.

Explanation:

When a display is ready, it is pasted in the

Therefore option b is correct.

A display is described as a device with a screen that shows rendered electronic images.

In this scenario, the display could be an information rendered in physical form.

The Dry Lab Prep room is a supplementary support space to the Teaching Dry Laboratory.

Fixtures, tables, workbenches and cupboards are provided for the preparation of experiments and the storage, cleaning and preparation, cleaning of materials, apparatus and equipment.

Learn more about a prep room at:

https://brainly.com/question/13209737

#SPJ1

The benefits of riparian zones are:

1. Decrease in nutrient load added to waterway.

2. Decrease in drastic water level changes from floods and storms.

Therefore, the correct answers are:

No, not all of the mass from the ingested grass is accounted for in the growth and waste of herbivore A. Some of the mass is lost or does not get utilized.

Let's imagine some key numbers:

Herbivore A ingests 50 kg of grass per day.

It provides 10 kg of waste (feces) per day.

Its body mass increases by 1 kg per day due to growth.

So the waste and growth accounts for 10 kg + 1 kg = 11 kg.

This leaves 50 kg - 11 kg = 39 kg of the ingested mass unaccounted for.

Mathematically:

Ingested mass (IM) = 50 kg

Waste mass (WM) = 10 kg

Growth mass (GM) = 1 kg

Utilized mass (UM) = WM + GM = 10 kg + 1 kg = 11 kg

Missing mass (MM) = IM - UM

= 50 kg - 11 kg

= 39 kg

So about 39 kg or 78% of the ingested mass is missing, indicating it is lost or not efficiently utilized by herbivore A. Let me know if this helps explain the concept!

Answer: B. they are burying a supple of nut for the winter

hope this helps!

If the mother had a widow's peak homozygous dominant (WW) or heterozygous (Ww), and the father had a straight hairline homozygous recessive (ww), then the percentage of their children would have a straight hairline is zero for a homozygous dominant mother and 50% for a heterozygous mother.

The genotype frequencies in a cross refers to the segregation of alleles in gametes, in this case, the mother can generate W and w gametes.

Therefore, with this data, we can see that genotype frequency in a cross lead to different phenotypes.

Learn more about gamete combinations here:

https://brainly.com/question/23990736

#SPJ1

Eyesight problems , increase body weight , restlessness , obesity , diabetes are some major problems that foreseen when you adopt bad habits.

Geyphel eat unhealthy food like biscuit , noodles and cakes all the time due to which he suffered from diabetes , obesity , BP problem etc because this kind of food our body cannot digest properly due to which it accumulates in the body tissue.

therefoee the child has to eat healthy food like fibrous food which prevent constipation etc

also, he used the phone and computer everyday due to which he might suffered from the eyesight problems like paining in eyes , redness in eyes etc therefore the child must go outside and play outdoor activities.

outdoor activates helps in prevention of many unhealthy bad habits.

In society some unhealthy habits are:

overall the due to the unhealthy life style the child might get affect with the many disease which effects its body as well as mind.

To know more about UNHEALTHY FOOD HABITS here

https://brainly.com/question/2495540

The remains were probably those of the final tsar, Nicholas II, soviet tsarina, and two of their five kids, who had vanished after they had been shot by the Communists in July 1918, according to forensic specialists and DNA tests.

Despite the 1917 murder of Czar Nicholas II's closest relatives, there remain living relatives. debated since 1992: Grand Duke Maria Vladimirovna of Russia, who is Alexander II's great-great granddaughter The emperor of the Russian great-great-great-grandson, Princes Alexei Andreievich

The skeletal remains discovered in the very first grave were used to create the shortened Triple Repeats (STRS) of Tsar Nicholas and Tsarina Alexandria, which are displayed in Table 1. The digestive tissue collected from Catherine Anderson, a researcher who underwent surgery several years before she passed away & is subsequently burned, was employed for collecting her DNA.

To know more about forensic visit:

https://brainly.com/question/14403044

#SPJ1

For each environment below, describe as, Islands frequently have a low carrying capacity, which may promote competition and resource allocation among species, further accelerating speciation.

To know more about environment

https://brainly.com/question/9740398

#SPJ1

Before storing grains, granaries should be fumigated to protect the grains from pollutants and pests. In order to get rid of insects, parasites, and other pests that can infest grains and other stored food goods, fumigation is the technique of releasing a gas or vaporised pesticide in a closed environment.

Additionally, bacterial, fungal, and other germs that might contaminate and destroy food can be removed through fumigation. Because it can stop the spread of impurities and pests that could seriously harm stored grains, fumigation is a crucial stage in the process of preserving grains.

For instance, pests like moths, weevils, and beetles can infest and devour grains that have been kept, causing a considerable loss in production and quality. Moreover, fungus spores can cause spoilage.

Learn more about  fumigation at:

https://brainly.com/question/28449025

#SPJ1

Before storing grains, granaries should be fumigated to protect the grains from pollutants and pests. In order to get rid of insects, parasites, and other pests that can infest grains and other stored food goods, fumigation is the technique of releasing a gas or vaporised pesticide in a closed environment.

Additionally, bacterial, fungal, and other germs that might contaminate and destroy food can be removed through fumigation. Because it can stop the spread of impurities and pests that could seriously harm stored grains, fumigation is a crucial stage in the process of preserving grains.

For instance, pests like moths, weevils, and beetles can infest and devour grains that have been kept, causing a considerable loss in production and quality. Moreover, fungus spores can cause spoilage.

Learn more about  fumigation at:

https://brainly.com/question/28449025

#SPJ1

Because male creatures contain X and Y chromosomes, which are sex chromosomes, the law for dominance does not apply to them and they more susceptible to sex-related genetic diseases than female species.

Males only inherited one X chromosome, hence they only have one chance to receive the "good" allele because females contain two versions of an x-linked allele whereas males only carry one. Males are more likely than females to exhibit X-linked characteristics.

That's because X-linked diseases are typically brought on by a lack of functional copies of a gene found on the X chromosome. Males are born with just one X chromosome. Hence, they just require one malfunctioning .

To know more about chromosomes visit :

https://brainly.com/question/1596925

#SPJ1

Autophagy and phagocytosis are two different processes by which cells can remove unwanted or harmful materials.

Autophagy is a process of self-eating that occurs within cells, in which cytoplasmic components or organelles are sequestered within a double-membraned structure called an autophagosome. The autophagosome then fuses with a lysosome, and the contents are degraded by lysosomal enzymes. Autophagy is an essential cellular process for maintaining cellular homeostasis by removing damaged organelles, protein aggregates, and intracellular pathogens.

Phagocytosis, on the other hand, is a process by which cells engulf and internalize extracellular particles or pathogens. In phagocytosis, the particle to be ingested is recognized by the cell and bound to the cell surface by receptors. The cell then extends its membrane around the particle, forming a phagosome. The phagosome then fuses with a lysosome, and the contents are degraded by lysosomal enzymes. Phagocytosis is an important mechanism by which immune cells, such as macrophages and neutrophils, remove invading microorganisms or debris from the body.

In summary, autophagy and phagocytosis are two distinct cellular processes for removing unwanted materials, but they differ in the source of the material being degraded and the location of the degradation. Autophagy involves the degradation of intracellular components, while phagocytosis involves the degradation of extracellular particles. Autophagy occurs within the cell itself, while phagocytosis occurs on the cell surface.

Learn more about autophagy:

https://brainly.in/question/21387583

#SP11

Pleiotropy can constrain the evolution of certain traits, as changes in one trait may have unintended and harmful consequences for other traits.

Lack of genetic variation: This refers to a situation where the genetic variation within a population is limited, either due to a small population size or because of artificial selection. As a result, the range of phenotypic variation that can be produced by this population is restricted. For example, if a population of flowers has only one allele for petal color, such as red, then it cannot produce any other color of petals. This lack of genetic variation can constrain the evolution of new traits, as there is no genetic variation for natural selection to act upon.

Pleiotropy: This refers to a situation where a single gene affects multiple traits, such that a change in one trait can have unintended consequences for other traits. For example, sickle cell anemia is a genetic disorder caused by a single mutation in the beta-globin gene. This mutation causes red blood cells to form an abnormal shape, which can cause a range of health problems. However, this same mutation also provides protection against malaria, as the abnormal cells are less hospitable to the malaria parasite. In this case, the pleiotropic effects of the mutation mean that individuals with sickle cell anemia have both benefits and drawbacks to their health.

Learn more about developmental constraints: https://brainly.com/question/28812819
:

#SPJ1

Answer: Planting cover crops there are many but this is the point and examples.

Explanation: Examples:

1. Implementing nutrient management and conservation plans;

2. Fencing animals out of streams;

Installing and maintaining grassed or forested buffer strips along farm fields.

Answer: Planting cover crops there are many but this is the point and examples.

Explanation: Examples:

1. Implementing nutrient management and conservation plans;

2. Fencing animals out of streams;

Installing and maintaining grassed or forested buffer strips along farm fields.

The feed flow rate at which the food particles are just removed from the suspension is 0.057 m^3/s.

The critical speed for separation of particles can be calculated using the equation:

v_c = (r^2 * g * (ρp - ρl)) / (9 * η)

where:

r = radius of the centrifuge = 11.5 cm

g = acceleration due to gravity = 9.81 m/s^2

ρp = density of particles = 1.03 g/cm^3

ρl = density of liquid = 1.00 g/cm^3

η = viscosity of liquid = 1.25 mPa.s = 0.00125 Pa.s

Converting all units to SI units, we get:

r = 0.115 m

g = 9.81 m/s^2

ρp = 1030 kg/m^3

ρl = 1000 kg/m^3

η = 0.00125 Pa.s

Substituting these values in the equation, we get:

v_c = (0.115^2 * 9.81 * (1030 - 1000)) / (9 * 0.00125) = 14.04 m/s

The feed flow rate can be calculated using the equation:

Q = π * r^2 * v_f

where:

Q = flow rate

r = radius of the centrifuge = 11.5 cm = 0.115 m

v_f = feed velocity

At the critical speed, the feed velocity equals the critical velocity:

v_f = v_c = 14.04 m/s

Substituting these values in the equation, we get:

Q = π * (0.115)^2 * 14.04 = 0.057 m^3/s

Learn more about centrifuge:https://brainly.com/question/17065689

#SPJ1

Answer:

ATP (known as Adenosine Triphosphate)

Explanation:

other sources are saying glucose but i have a feeling that ATP is the answer. hope this helped:)

radiometric dating is the type of dating that both spouses are into each other genuinely while relative dating is the vice versa

Answer:

Explanation:

Metabolism is the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available.

Having a high metabolism means your body burns energy from food at a faster rate than others your age. This means that you require more energy from food in order to grow and develop.

A person with a "low" (or slow) metabolism will expend less calories when at rest and during exercise, necessitating a reduction in caloric intake.

How to get a fast metabolism:

While metabolism is partially determined by genetics, there are several things you can do to help increase your metabolism:

It's important to note that while these strategies may help increase metabolism, there is no one-size-fits-all approach. Consult with a healthcare professional to determine the best course of action for your individual needs.

if a high metabolism is the case, there is nothing or barely anything to fix.

The body's response to high elevations is a great example of homeostasis because it shows how the body can maintain stable internal conditions despite changes in the external environment by initiating various physiological responses.

Homeostasis is the process by which the body maintains a stable internal environment despite changes in the external environment. When we go to high elevations, the air pressure decreases, which causes a reduction in the partial pressure of oxygen. This change in the external environment can have significant effects on the body, such as hypoxia or altitude sickness.

To maintain homeostasis, the body initiates several physiological responses to cope with the decrease in oxygen availability at high elevations. These responses include increased respiration, increased heart rate, and increased production of red blood cells.

All of these responses work together to maintain the body's oxygen supply and prevent hypoxia, which is a state of insufficient oxygen supply to the tissues. By maintaining adequate oxygenation, the body can function normally despite the change in the external environment. Therefore, the body's response to high elevations is a great example of homeostasis.

Learn more about homeostasis here:

https://brainly.com/question/3888340

#SPJ1

The Sonic Hedgehog (SHH) protein is involved in limb differentiation during embryonic development. It acts through a signaling pathway that involves the activation of a transcription factor called Gli.

In the developing limb bud, SHH is produced by a group of cells known as the zone of polarizing activity (ZPA) located at the posterior margin of the limb bud. The SHH protein diffuses from the ZPA to the anterior part of the limb bud, where it interacts with the cells in a concentration-dependent manner.

When SHH binds to its receptor, Patched (PTCH1), it releases another receptor, Smoothened (SMO), from inhibition. This leads to the activation of a downstream signaling cascade that ultimately activates the transcription factor Gli.

Gli then enters the nucleus of the target cells and regulates the expression of various genes involved in limb development, such as the homeobox transcription factor genes. These genes determine the identity of the cells in the developing limb bud and dictate the formation of specific structures such as bones, muscles, and tendons.

Thus, SHH acts as a morphogen, controlling the pattern and identity of cells in the developing limb bud, and its expression and activity are critical for the proper development of limbs.

Based on the fact that widow's peak is more common than a straight hairline, and assuming that the man is homozygous dominant (WW) for widow's peak and the woman is heterozygous (Ww) for widow's peak, we can use a Punnett square to figure out how likely it is that their children will have a straight hairline.

In the Punnett square, W is the number of gametes that could come from the man, and W and w are the number of gametes that could come from the woman.

The Punnett square shows that every possible child will get at least one copy of the dominant widow's peak gene (W) from either the father or the mother. Based on what we know about them and assuming they have full dominance, the chances of their children having a straight hairline are 0%.

To know more about Punnet squares:

https://brainly.com/question/3522181

Answer: the sperm binds to a receptor on the surface of the egg and fuses with the egg plasma membrane

If Jane continues to eat as she has been, adhering to a balanced diet she is likely to experience positive health outcomes in the long term with a reduced risk of chronic diseases such as heart disease, stroke, and diabetes.

A diet rich in fruits and vegetables provides essential vitamins, minerals, and fiber that support immune function and reduce the risk of certain cancers. Proteins and dairy products provide vital nutrients for muscle growth and repair, bone health, and immune function.

Whole grains and starches provide energy and fiber, while limited oils and fats help keep cholesterol levels in check. Drinking 8 glasses of water a day promotes proper hydration, which is essential for optimal health. In conclusion, Jane's commitment to a healthy diet and lifestyle is likely to support her long-term health and well-being.

To learn more about diet follow the link:

https://brainly.com/question/24351545

#SPJ1

The complete question is:

When Jane is filling her plate in the cafeteria she makes sure that half of it is covered in fruits & vegetables, another quarter of it has foods in the protein & dairy group (which includes all animal products), and the last quarter of her plate has brown whole grains and starches. She also uses a small number of oils & fats and no added sugars to make sure that her lunch is part of a nutritious diet. In addition to the food she eats, Jane makes sure to drink 8 glasses of water every day to maintain health.

What would you expect to happen if Jane continues to eat as she has been, for her long-term future, without making any changes to her diet?

Chemical weathering changes rocks on a molecular level. It involves the breakdown and alteration of rock minerals through chemical reactions with water, atmospheric gases, and biological agents.

The chemical reactions can result in the dissolution, oxidation, or hydrolysis of minerals, leading to the formation of new minerals and the release of ions into the environment.

Chemical weathering is generally slower than physical weathering, which involves the mechanical breakdown of rocks without changing their chemical composition.

Temperature changes are not typically involved in chemical weathering, although variations in temperature can affect the rate of chemical reactions. Chemical weathering can also contribute to the transportation of silt and rock to other places through erosion and deposition processes.

Learn more about chemical weathering:https://brainly.com/question/29616084

#SPJ1

Answer:

The four bases shown in the table (adenine, thymine, guanine, and cytosine) are the building blocks of DNA, and they are arranged in a specific sequence to encode genetic information. The pattern in the data (i.e., the sequence of these four bases) is useful for developing a model of DNA because it allows us to understand how the genetic information is encoded and transmitted from one generation to the next.

By analyzing the pattern of the DNA sequence, scientists can identify genes, determine the function of different regions of DNA, and even predict the likelihood of certain genetic disorders. This information is important for many fields, including medicine, agriculture, and forensic science.

Additionally, the pattern in the data has helped scientists to develop models of DNA structure, such as the double helix model proposed by Watson and Crick in 1953. This model provides insight into how the DNA molecule is able to replicate and transmit genetic information accurately from one cell to another.

The environmental and social consequences of the irresponsible use of antibiotics lead to development of antibiotic-resistant bacteria.

Thus, overuse of antibiotics lead to the development of antibiotic-resistant bacteria, which can cause infections that are difficult to treat that increase the risk of death. The use of antibiotics in agriculture also contribute to the development of antibiotic-resistant bacteria in animals that can be transmitted to humans.

Only use antibiotics that was prescribed by a healthcare professional. The antibiotics should be used responsibly in agriculture and limit their use to treat disease. Thus, individuals can help to prevent the spread of antibiotic-resistant bacteria by taking these actions.

Learn more about the antibiotics here:

https://brainly.com/question/10868637

#SPJ1

Answer:

Plants primarily grow through a process called photosynthesis, which is a chemical reaction that converts light energy into chemical energy stored in glucose molecules. During photosynthesis, plants use carbon dioxide from the air and water from the soil to produce glucose and release oxygen. This process occurs in the chloroplasts of plant cells and is facilitated by a complex set of chemical reactions involving enzymes and pigments.

In addition to photosynthesis, plants also acquire nutrients from the soil through their roots. These nutrients are used to build molecules such as proteins and nucleic acids, which are essential for growth and development. However, the majority of the plant's mass comes from the carbon dioxide that it absorbs from the air during photosynthesis.

Therefore, the additional matter in a growing plant mainly comes from the carbon dioxide that it captures from the air through photosynthesis. While nutrients from the soil are important for plant growth, they contribute relatively little to the overall mass of the plant.

To summarize, plants grow through the process of photosynthesis, which converts light energy into chemical energy stored in glucose molecules. The primary source of new plant matter is carbon dioxide from the air, which is incorporated into glucose during photosynthesis. While nutrients from the soil are important for plant growth, they are not the primary source of additional matter in a growing plant.