An 8 year old girl is brought to your office by her mother, who tells you that the girl has been complaining of a sore throat for 3 days. Thinking that the girl was developing a cold, she kept her daughter home from school with the hope that she would get better. She has become worse in the past day, however, developing a fever of 103 degrees F, a headache, and complaining of abdominal pain. As you examine her throat, you see that in addition to red and enlarged tonsils, that there are white patches on them, and that there are swollen lymph glands on both sides of her neck.

Answer:

Explanation:

This is the process of muscle contraction and relaxation in the muscle. The type of muscle involved is the skeleton muscle.

The process is initiated in the Central nervous system. Examples are in contraction of biceps and triceps.

It involves myosin head and actin filament coupled with the release of calcium ion from the sarcoplasm reticulum: this ion activates this process in the muscles. With the exposure of the music binding site on the acting filament, myosin is able to bind to acting filament bringing about this process.

a. ATP attaches to myosin head

b. Myosin head is re-energized

c. Myosin head forms cross bridge with actin

d. Power stroke moves thin filament

e. Cross bridges detach from actin

f. Myosin binding sites covered

g. Calcium ions pumped into the sarcoplasmic reticulum

h. Calcium ion concentration decreases below the threshold for binding to troponin.

Muscle contraction results from the interaction between actin and myosin filament proteins.

The sequential steps are as follow:

In conclusion, muscle contraction results from the interaction between actin and myosin filament proteins.

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Answer:

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The correct statements are: - Elements are made up of only one type of atom. - Each element has a unique chemical symbol. - Elements can be identified by their atomic number.

The phrase dune erosion by ocean water along a shoreline best describes a density-independent limiting factor that can affect ecosystem stability (Option B).

A density-independent limiting factor can be defined as any factor in a given ecosystem that may alter the homeostasis of the population that lives in a given geographic area.

These factors (density-independent limiting factors) are generally abiotic factors such as hurricanes, extreme temperature conditions, the presence of contaminants in the air that hamper life in a given area, etc.

Conversely, density-dependent limiting factors are biotic factors such as competitive species that alter the development of another population.

Therefore, with this data, we can see that a density-independent limiting factor is any abiotic condition that may alter the life of a population in a give geographic area and thus alter the homeostasis of the whole ecosystem.

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Answer:D

Explanation:

if a plant is adapted to low temperatures and the specific are where it lives, has a change in its temperature this plant will die and this area will no longer support life, which is due to the change in abiotic factor

An ocean trench is described when B and C, some are found next to continents and they are long and deep.

An ocean trench is a long, narrow depression in the ocean floor. They are typically 50 to 100 kilometers wide and 3 to 4 km below the level of the surrounding oceanic floor, but can be thousands of kilometers in length.

There are about 50,000 km of oceanic trenches worldwide, mostly around the Pacific Ocean, but also in the eastern Indian Ocean and a few other locations. The greatest ocean depth measured is in the Challenger Deep of the Mariana Trench, at a depth of 10,920 m (35,830 ft) below sea level.

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Complete question:

Which of the following describes an ocean trench

(A) A high, narrow ridge in the ocean floor

(B) Some are found next to continents

(C) They are long and deep.

(D) A shallow, wide basin in the ocean floor

Environmental variables that control the population are most likely to blame for the population's stability.

A "boom and bust" pattern in the rabbit population is caused by a number of variables, including: Food accessibility. This year, there has been a surplus of food available for animals. Gardens, landscaping, and yard landscaping have increased as a result of more people remaining at home, giving rabbits access to a variety of food sources.

As they reproduce swiftly, the number of rabbits can rise quite quickly. Six would be the base of an exponential increase if each rabbit had six young. Some rabbits will pass away due to old age, predators, or malnutrition; the population will not continue to increase exponentially forever.

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Answer:

10 % of the energy (i.e., 50 calories) is converted to biomass. This efficiency of energy transformation is high

Explanation:

Answer:

D. Pattern of symmetry

Explanation:

The bird, insect and the giraffe all have the same pattern of symmetry or body plan.

They have bilateral symmetry. This is because of a vertical plane is run through each of them, from top to bottom, the body parts would be divided into two. That is each side would have equal arrangement of the different parts that makes up the organism. This is why it is referred to as bilateral symmetry.

Answer:

trace element, also called micronutrient, in biology, any chemical element required by living organisms in minute amounts (that is less than 0.1 percent by volume [1,000 parts per million]), usually as part of a vital enzyme (a cell-produced catalytic protein).

here's the answer to your question hope it helps you

formula: Fe (C N) 2

Those with one copy of the dominant allele, which might come from only one parent, will have a dominant phenotype.

In people who only have one copy of allele, which could also come from one parent, a dominant allele results in a dominant phenotype. A recessive allele requires two copies—one from each parent—in order to result in a recessive phenotype in the individual.

A capital letter is used to identify a dominant allele (A versus a). The combinations are AA, Aa, and aa because each parent contributes one allele. The dominant trait will be phenotypically displayed in offspring with either an AA or an Aa genotype, while the recessive trait will be expressed in aa individuals.

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Answer:

Heterocyclic aromatic compounds contain atoms other than carbon (hence "hetero," different) in their ring systems, but are nevertheless aromatic, because they follow Hückel's Rule.  

Explanation:

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Heterocyclic aromatic compounds contain atoms other than carbon. This compound contains oxygen, nitrogen, or sulfur group.

Aromatic compounds are ring compounds that contain sigma bonds and delocalized pi electrons. Benzene is the most commonly known aromatic compound.

The elements other than carbon in the aromatic compounds are:

Aromatic compounds are joined by covalent bonds. These compounds are also known as monocyclic or polycyclic compounds. They are used in the synthesis of pesticides and polymers. Aromatic compounds and cyclic and planar. They have 4n + 2 pi electrons.

Therefore, Heterocyclic aromatic compounds contain atoms other than carbon. This compound contains oxygen, nitrogen, or sulfur group.

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Option A. Their numbers and diversity will be drastically reduced

If carbon dioxide levels continue to rise and coral reefs disintegrate by the end of the century, the most likely effect on marine organisms that rely on these reefs for food and shelter would be a drastic reduction in their numbers and diversity (option a). Coral reefs serve as crucial habitats and nurseries for a wide range of marine organisms, including fish, invertebrates, and other species.

The disintegration of coral reefs would result in the loss of their structural complexity, which provides shelter, protection, and food sources for many organisms. Without the reefs, marine organisms would lose their primary habitats and face significant challenges in finding suitable alternatives. They may be forced to disperse over greater distances in search of food and shelter, which could result in increased predation risk, competition for limited resources, and reduced reproductive success.

Additionally, the decline of coral reefs would lead to a decline in available food sources, as the reefs support a diverse ecosystem with complex food webs. Organisms that rely directly or indirectly on the reefs for sustenance would face food scarcity and potential population declines.

Overall, the loss of coral reefs due to rising carbon dioxide levels would have a profound and negative impact on marine organisms, leading to reduced numbers and diversity, increased competition for resources, and potential disruptions to reproductive patterns. Therefore the correct option is A

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Answer:

you would get a lot of bad infections

Answer:

Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.

Explanation:

The sense of smell in tigers is highly developed and serves as a critical tool for survival. It helps them locate prey, establish territories, detect potential threats, and identify reproductive opportunities. The acute sense of smell in tigers enhances their hunting efficiency and contributes to their overall adaptation as top predators in their habitats

The sense of smell in tigers is particularly strong and plays a crucial role in their survival. Tigers have a highly developed olfactory system, equipped with specialized receptors in their nasal cavity that allow them to detect and discriminate various odors in their environment.

The sense of smell is essential for tigers when it comes to finding food. Tigers are carnivores and rely on hunting to sustain themselves. Their acute sense of smell helps them locate potential prey, even from a distance. Tigers can detect the scent of other animals, such as deer or wild boar, which enables them to track and stalk their prey effectively.

The olfactory system of tigers allows them to detect not only the presence of potential prey but also to gather information about the prey's location, health, and even reproductive status. They can identify the scent markings left by other tigers, which help them establish and defend their territories. Additionally, tigers can use their sense of smell to detect the presence of rival tigers or potential threats in their surroundings.

The ability to smell plays a vital role in a tiger's hunting strategy. Tigers often rely on ambushing their prey, and a keen sense of smell allows them to analyze the scent trails left by potential prey, determining their direction and estimating the distance to their target. This helps tigers plan their approach and execute precise and efficient hunting strategies, increasing their chances of a successful kill.

Moreover, a tiger's sense of smell is not only limited to locating prey but also plays a role in identifying potential mates. During the breeding season, female tigers release pheromones that indicate their receptiveness to mating. Male tigers can detect these scents and use them to locate and court females.

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Answer:

The process of diffusion of solvent particles from the region of less solute Concentration to a region of High solute Concentration through semi-permeable Membrane is known as (osmosis)

Answer:

Explanation:Snow's hypothesis was that contaminated water was the source of the disease, but the challenge was how to prove this to others who were skeptical. ... It is now known that cholera is a waterborne disease, spread when water used for drinking or washing food has been contaminated with feces from infected individuals.

Answer:

it depends, certain prescripted drugs can hinder your ability to drive (like Benadryl) and others can help you when you are driving like if you have ADHD it might help you pay attention to the road if you take your medication (i do not recommend doing this if you are told not to depending on the prescription)

Answer:     solid colored

Explanation:

Answer:

solid colored

Explanation:

the answer is solid colored?

Answer:

ok so see it by magnifi,a

Explanation:

since the question isnt fully written sorry

In accordance with data regarding PCB levels and the continued contamination of our oceans and rivers, we can confirm that the organisms with the highest levels of PCBs are fish.

PCBs are highly toxic chemical compounds. These chemicals are most often produced and released into the environment through human activities as waste products. They can cause neurological malformations, developmental issues, and serious long-term health problems, making PCBs dangerous to fetuses, babies, and even adults.

Bioaccumulation is an organism's tendency to absorb toxic chemicals from the environment into itself. These toxic compounds then enter the food chain through biomagnification. The bioaccumulation of PCBs are most common among fish due to the very high levels of PCB contamination in our oceans and rivers.

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Answer:

I don't know

Explanation:

I don't know

Answer:

A wolf can be considered as both a secondary and primary consumer because they feed on both primary and primary and secondary consumers. As a secondary consumer, wolves can feed on plant eaters [primary consumers] such as elk which is an herbivore. As a tertiary consumer, wolf feed on secondary consumers such as deer.

hope this answer is correct .....

Explanation:

because wolves eat both 'plants' and flesh of animals

The cell wall protects the cell it acts like a barrier

Population growth rate for Zambia is 0.8 % when CBR= 2.9%, Immigration = 1%,CDR = 2.1%, Emigration = 1% are as given above.

The crude birth rate is the number of live births per 1,000 of the population at the midyear census. long explanation The crude birth rate is the number of live births per 1,000 of the expected population at the midyear mark.

Given data;

CBR= 2.9%, Immigration = 1%,

CDR = 2.1%, Emigration = 1%

Now to find the Population Growth Rate use the given formula;

(CBR + Immigration) - (CDR + Emigration) = Population Growth Rate

Population Growth Rate= (CBR + Immigration) - (CDR + Emigration)

the current population of Zambia =18.92 million

now

CBR= 2.9% of 18.92 million=548680

CDR = 2.1% of 18.92 million=397320

Immigration = 1% of 18.92 million=189200

Emigration = 1% of 18.92 million=189200

now putting the values on eq.

Population Growth Rate= (CBR + Immigration) - (CDR + Emigration)

Population Growth Rate= (548680  +189200)-(397320 + 189200 )

Population Growth Rate=151360 *100/18.92 million

Population Growth Rate=0.8%

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Explanation:

The sequence of amino acids in the chain determines how the chain will fold up to make the protein, so different proteins have different three-dimensional shapes. ... This is because proteins form attachments and interact with many other molecules and structures inside organisms.