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Answer:

d

Explanation:

Negative feedback loops are slow, Positive feedback loops are fast.

Negative feedback loops- When a system's output reduces or dampens the processes that result in its output, the system produces less output. This is known as negative feedback. Negative feedback loops typically enable systems to self-stabilize (slow). A crucial regulating mechanism for maintaining the body's homeostasis is negative feedback.

Positive feedback loops- Loops with positive feedback, where changes in one direction lead to more changes in the same direction. For instance, as a substance's concentration rises, a feedback loop results in further concentration rises.

Homeostasis- All bodily systems must be in a condition of balance for the body to live and work properly.

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The synthesis of sugar molecules through the process of photosynthesis requires energy absorbed from sunlight. Bearing this in mind, photosynthesis is an endergonic reaction.

The reactions that absorb energy to initiate are known as endergonic reactions. The absorb energy in order to produce more energy.

Plants absorb energy directly from sunlight to start the photosynthesis process. glucose is synthesized in plants during thus process. It is vital for the survival of plants.

Other than photosynthesis, metabolic reactions in living organisms' cells are also endergonic reactions.

The chemical equation of photosynthesis is :

                           6C02 + 6H20 → C6H1206 + 6O2

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The body can store a certain amount of extra iron in a red blood cell protein called ferritin.

The ionic strength of a given environment serves as a gauge for its ion concentration. When ionic compounds dissolve in water, ions are created. The overall concentration of electrolytes in the solution will have an influence on important factors like the dissociation constant or the solubility of different salts.

One of the most important characteristics of an ion-containing solution is its ionic strength. For clarity, the units must be provided when expressing ionic strength as either molal (mol/kg solvent) or molar (mol/L solution). Lewis and Randall introduced the concept of ionic strength by describing the activity coefficients of strong electrolytes in 1921.

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The correct response to the question is; "Three of these"

We know that the population of the planet earth have been increasing in leaps and bounds. The birth rate has fast exceeded the death rate in some parts of the world. This tends to upturn the balance that we have in the universe. We could confidently say that the planet is at the brink of exceeding its carrying capacity and this would of course have a much adverse effect on the individuals that live on the earth.

Looking at the map of the world, it is clear that if the population of the earth is not speedily contained the planet would soon exceed carrying capacity with the population being larger in some areas than it is in other places.

We could then conclude that humans currently are;

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The statement 'eukaryotic gene regulation is controlled by more than one promoter and one regulator' explain the difference between prokaryotic and eukaryotic gene regulation (Option D).

Eukaryotic gene regulation is a complex process controlled by different types transcription factors that bind to specific nucleotide regions upstream target complementary genes called promoters, while in prokaryotes there is only one promoter.

In conclusion, one of the most important distinctions observed in transcription between prokaryotic and eukaryotic organisms is the fact that gene regulation in eukaryotes is controlled by more than one promoter and one regulator (Option D).

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Study on use of ivermectin for Covid-19: Regular use of ivermectin for Covid-19 prophylaxis reduced Covid-19 mortality by 92% in a dose-response manner.

The aim of this study was to determine whether regular use of ivermectin affected his level of protection against COVID-19 and related outcomes, and to enhance the efficacy of ivermectin by demonstrating a dose-response relationship.

BACKGROUND:

We have previously shown that ivermectin, used as prophylaxis for coronavirus disease 2019 (COVID-19), is associated with reduced COVID-19 infection and hospitalization, and mortality.

METHOD:

An exploratory analysis of this prospective observational study included a program of ivermectin at a dose of 0.2 mg/kg/day for 2 consecutive days every 15 days for 150 days. Here is the definition of regularity:

A regular user received her 180 mg or more of ivermectin, and an irregular user received up to 60 mg of ivermectin throughout the program. After multivariate adjustment, comparisons were made between nonusers (those not using ivermectin) and regular and infrequent users. We calculated and compared the risk of COVID-19 infection and death from COVID-19 using the full city database. The COVID-19 database was used and propensity score matching (PSM) was employed for hospitalization and mortality.

RESULT:

Among COVID-19 participants, regular users were older and had higher prevalence of type 2 diabetes and hypertension than casual or non-regular users. Matching analysis after PSM included 283 subjects in each group of non-regular and regular users among regular and non-regular users, and 1,542 subjects among non-regular and non-regular users. rice field. 100% reduction in hospital admissions for regular users compared to infrequent users.

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Answer: Cells maintain internal stability.

Explanation:  I took the quiz so ik its the correct answer

Antibiotics that target cell wall synthesis ultimately cause bacterial cell death as a result of osmotic lysis.

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The odorant molecules are converted into action potentials by olfactory receptor neurons (ORNs).

In the olfactory epithelium, olfactory receptors are present. The superior nasal cavity contains a specific region of nasal mucosa that covers some of the ethmoid bone (cribiform plate). The olfactory pathway's first-order neurons are called olfactory receptor cells. They have one axon and one dendrite and are bipolar neurons. - When olfactory receptors are stimulated, nerve impulses are set off and travel up the olfactory nerves to the brain. – lubricant secretion over the eyeballs. As a result, the rate of stimulus is determined by the selected breathing rhythm, which in mouse varies from 2 to 10 Hz.

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The claim that each cell includes a nucleus that houses genetic material is not included in the cell theory.

THEORY OF CELLS:

A widely accepted theory that depicts life as a function of the cell is called the cell theory. Three scientists, Rudolf Virchow, Mathias Scleiden, and Theodor Schwann, developed the cell hypothesis in the 1890s.

The following three things make up the cell theory:

• All living things are built around their basic unit, the cell.

• At least one cell makes up every living creature.

• Every cell develops from an earlier cell.

Thus, the claim that is not supported by the theory of the cell is that each cell has a nucleus that houses genetic material. So, option D is the correct answer.

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According to the research, the correct option is D. "Metaphase is easy to recognize" is NOT a true statement.

It is the phase in which the chromosomes (or tetrads in the first meiotic division) are placed in the equatorial plane of the spindle, this being the second phase of cell division.

In this sense, it is necessary to observe morphological aspects to use the optical microscope to observe the tension of the spindle fibers aligns the tetrads in the equator of the cell , in this way it is observed how the spindle fibers join the kinetochores.

Therefore, we can conclude that according to the research, the correct option is D. "Metaphase is easy to recognize" is NOT a true statement.

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Answer:

sunlight brainliest please

Answer:

The main source of energy for plants is​ of course from the sun. Solar energy aka sunlight is emitted by the sun and that is basically fuel for plants to grow and develope.

Explanation:

The correct option from the question is B ( The y-axis is the dependent variable and should be labelled amount of food eaten. )

The dependent variable is the variable that is being measured or tested in an experiment.

For example in the study above, we are at the looking at the amount of seeds the class pet birds ate daily. The dependent variable would be the the amount of seeds the class pet birds ate daily since that is what is being measured.

The correct option from the question should then be B ( The y-axis is the dependent variable and should be labelled amount of food eaten. )

One way to help identify the dependent variable is to have it in mind that it depends on the independent variable.

When researchers make changes to the independent variable, they then measure any resulting changes  that may occur to the dependent variable.

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It must decrease the enzyme activity in both of the organism X and Y.

Enzyme activity is always measured in the units which is indicate the rate of the reaction catalysed by that enzyme was expressed as the micromoles of the substrate transformed (or product formed) per minute. the Enzyme activity is the amount of the substrate to be converted by the enzyme in the moles per unit time. It is always measures the amount of the active enzyme which are present in the mixture at the given time .the Enzyme activity can be affected by the variety of the factors, such as the temperature, pH, and the concentration. the Enzymes work best as within the specific temperature and the pH ranges, and the sub-optimal conditions

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The membrane that lines the thoracic cavity walls is known as the parietal pleura, which is a serious complex membranous structure that originates a sac known as membrane pleural sac (Option 1).

The parietal pleura is a membranous structure found in the thoracic wall which is known to separate the pleural cavity structure of the mediastinum.

In conclusion, The membrane that lines the thoracic cavity walls is known as the parietal pleura, which is a serious complex membranous structure that originates a sac known as membrane pleural sac (Option 1).

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Answer:

m = 42.24 grams

Explanation:

I hope this helps :)

6000 npp was lost for each unit of forest area that was cleared

NPP is the pace at which producers employ photosynthesis to make and store chemical energy, less the rate at which they utilise some of this stored chemical energy via aerobic respiration. NPP evaluates how quickly producers can generate the chemical energy stored in their tissue and possibly accessible to other organisms (consumers) in an ecosystem. It is also described as the difference between the energy fixed by autotrophs and their respiration, and it is typically equated to biomass increments per unit of land surface and time.

During the 1980s and 1990s, global agricultural growth carved a vast swath across tropical forests. According to Stanford researcher Holly Gibbs, more than half a million square miles of new farmland - an area approximately the size of Alaska - was developed in the developing world between 1980 and 2000, with more than 80 percent cleared out of tropical forests.

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If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, then these features should have A.a plasma membrane, DNA, and ribosomes.

According to the theory of endosymbiosis, structures such as mitochondria and chloroplasts were initially produced as prokaryotes. When these prokaryotes were engulfed by larger prokaryotes, then with the passage of time these became organelles of eukaryotic cells.

The presence of plasma membrane, DNA and ribosomes are the features that represent that the chloroplast and mitochondria could initially be prokaryotes. These structures can replicate themselves as they have their own DNA, they had ribosomes for the making of proteins and the plasma membrane that enclosed these cells. Hence, the presence of DNA, ribosomes, and plasma membrane indicates that the mitochondria and chloroplast were individual cells before.

Although a part of your question is missing, you might be referring to this question:

If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, what features should these organelles have?

A.a plasma membrane, DNA, and ribosomes

B.a plasma membrane, nucleus, and ribosomes

C.nucleus, DNA, and ribosomes

D.a plasma membrane, nucleus, and cilia

E.nucleus, ribosomes, and cilia

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The cortical regions that are not directly involved in sensory or motor functions are known as association areas.

Motor functions are those that regulate the movement of the muscles in the body. The neurons that stimulate signals for the movement are called motor neurons. The motor activities include the reflex actions, the muscular movements and the involuntary actions of the body.

Association areas are located in the frontal lobe of the cerebral cortex of the brain. These regions receive inputs from various areas. The functions performed by association areas are: memory retention, communication and inter-sensory association. Examples are: amygdala, hippocampus, etc.

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The brain has fat tissue and blood vessels to protect and nourish the brain cells, which need blood vessels to receive nutrients (Option c is correct).

Brain tissues are different types of tissues that are mainly composed of neuronal cells, glial cells and endothelial cells, which contain associated tissues such as fat tissue and blood vessels.

In brain tissue, the blood vessels help to transport nutrients such as Oxygen, which is required to carry put the cellular respiration, and fat tissue required to electrically isolate these cells and provide energy storage when required accordingly. All these tissues work together to conduct electrical impulses  (i.e. nerve impulses) in the brain.

In conclusion, the brain has fat tissue and blood vessels to protect and nourish the brain cells, which need blood vessels to receive nutrients (Option c is correct).

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The structure of one of these cells help carry out this function as it has tiny openings.

Water is specifically transported by the xylem up a plant's stem and into its leaves. Dead xylem cells that are connected together form the xylem vessels. Dead cells' end walls are broken, allowing water to pass through. The xylem cells' cell walls are strengthened by a substance known as lignin.

In order for the xylem to form a continuous, hollow tube, the cells that make up the xylem lose their end walls. The substance lignin helps to strengthen them. Lignin provides the plant with sturdiness and stability.

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The independent variable of an experiment is the variable that is changed or manipulated in a series of experiments.

On the other hand, the dependent variable is the variable or outcome that is measured to see the effectiveness of the treatment

According to this question, scientists wanted to determine the most effective mouthwash. They had three groups of volunteers.

After 24-hours, the scientist counted the number of bacterial colonies that formed on a Petri dish from the mouth swab.

This suggests that the independent variable is the different mouthwash used while the dependent variable is the number of bacterial colonies.

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The early United States population was predominantly protestant. In the nineteenth century, urban populations became increasingly roman catholic, especially in the cities of the northeastern United States. This shift in the pattern of religion was caused by b. international migration from Ireland, southern Germany, and Italy.

Protestantism is a sub-form of the Christian religion, that became common within Western Christianity. The people of the early United States predominantly were protestant.

However, in the middle of the nineteenth century, people from Italy, Germany, and Ireland migrated to the United States due to crises in their countries or for finding better jobs.

These people, who migrated to the United States, were majorly Roman Catholic. Hence, as more and more people migrated to the northeastern United States, the religion changed from Protestantism to Roman Catholicism in the urban areas.

Although a part of your answer is missing, you might be referring to this question:

The early United States population was predominantly Protestant. In the nineteenth century, urban populations became increasingly Roman Catholic, especially in the cities of the Northeastern United States. This shift in the pattern of religion was caused by

a)internal rural to urban migration from farming areas of the Eastern United States

b)transnational migration from Ireland, southern Germany, and Italy

c)transnational migration from Latin America and the Caribbean

d)religious conversion of urban residents

e)out-migration of protestants to rural farming areas of the Midwestern United States

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Contrary to the structures of the hindbrain and the midbrain, most of the structures of the forebrain are duplicated in both brain hemispheres (i.e., the right brain hemisphere and left brain hemisphere).

The right brain hemisphere and left brain hemisphere are two structures that divide the cerebrum (i.e., the brain) into two major parts, which control the sensory and motor functions of the individual.

The right brain hemisphere controls functions of the left part of the human body, while the left brain hemisphere controls functions of the right part of the human body.

In conclusion, contrary to the structures of the hindbrain and the midbrain, most of the structures of the forebrain are duplicated in both brain hemispheres (i.e., the right brain hemisphere and left brain hemisphere).

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A one-million-year-old skull bearing traits associated both with homo erectus and, in addition with both Homo erectus and Homo sapiens has been found in the Afar region of Eritrea, indicating.

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False. Feedback inhibition occurs when an enzyme acting early in a pathway is inhibited by the accumulation of a product late in the pathway

Inhibition is the conscious or unconscious restriction or restraint of a process or behavior, especially of urges or wants. The ability to inhibit oneself from acting on some impulses, such as the desire to hit someone in a fit of rage, and to delay the satisfaction of pleasurable activities allows one to perform vital social functions. When two desires are perceived that are in conflict, conscious suppression often occurs in daily life (e.g., the desire to eat a rich dessert versus the desire to lose weight).

According to psychoanalytic theory, inhibition serves as a mediator between the id and the superego, or conscience, and is largely unconscious (primitive desires). The socially imposed inhibitions known as taboos, such as those prohibiting incest or murder, are elevated to the level of moral prohibition.

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The dependent variable in the experiment is the stridulation of the chirping of the crickets.

The variable that alters when the independent variable does is known as the dependent or responsive variable. It is the sound of the cricket in this instance.

In an experiment, there are three different kinds of variables. These variables serve as controls, dependents, and independents.

Melissa's experiment in this case involves a cricket chirping as the temperature rises. Chirping will be the dependent variable.

Therefore, the dependent variable is the stridulation of the sound of the crickets.

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The question is incomplete. Your most probably complete question is given below:

Melissa raises crickets at her pet store that she sells for reptile food. She thinks that crickets chirp more often when the temperature gets warmer. She decides to conduct an experiment to prove her theory.

Answer:

A it's a high pressure zone with raising air.