Answer:
High amounts of fluoride
Explanation:
Teeth cleaning agents can contaminate one's blood with fluoride, something that it is only healthy to accumulate a small amount of.
A blood bank would refuse the blood of the potential donor because the cleaning agents of teeth significantly accumulate heavy metals in the blood of an individual.
Why teeth are required to be cleaned by a dental hygienist?Teeth are required to be cleaned regularly on their own. But if you are facing some problems like tooth decay you must have to consult with a dental hygienist in order to ensure the health of teeth and gums.
According to the context of this question, a dental hygienist uses a variety of cleaning agents while cleaning the teeth of a patient. Due to this, the accumulation of concentration of heavy metals like fluoride and lead is increased in the blood directly or indirectly.
Apart from this, this person also has genetic inheritance of tooth decay and other diseases. So, the blood bank refused to accept blood from a potential donor.
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Chemical energy in the form of food is changed into what?
Conver 3 miles to feet
Answer:
1mile = 5280ft
3miles = 3x5280 = 15840ft
Answer:
the answer is 15840 feets
Which of the following best describes what scientists consider when they study ecology? A. the interactions of organisms with their environment B. the interactions of organisms with weather and climate C. the interactions of organisms to reproduce and produce offspring D. the interactions of organisms with one another and the environment
Answer: A
Explanation:
I’m smart duhh
Answer: A
Explanation: It is resonable
how scientists are able to determine climate information by just looking at tree rings? (how does it work?)
Explanation:
Because trees are sensitive to local climate conditions, such as rain and temperature, they give scientists some information about that area's local climate in the past. For example, tree rings usually grow wider in warm, wet years and they are thinner in years when it is cold and dry.
Answer:
Explanation:
Climate scientists compare the tree growth records to local weather records. For locations where a good statistical match exists between tree growth and temperature or precipitation during the period of overlap, the ring widths can be used to estimate past temperature or precipitation over the lifetime of the tree.
Using and spectrophotometer, you measure 2 dilutions of NADH, and get absorbance values of 0.4 for sample A, and 0.2 for sample B. You know that the path length is 1 cm, and the extinction coefficient for NADH is 6220 (L Morcm). Using the Lambert-Beer Law equation (below), calculate the concentrations of sample A Select] and Sample B (Select ] A = log10 () = Ecl Where: A- Absorbance C- Concentration (mol 1 - Path length (cm) E = molar decadic extinction coefficient L mol. cm 1o - Intensity of the incident light 1 - Intensity of the transmitted Night
Answer:
The answer is "The concentration sample A= 0.00006[tex]\frac{mol}{L}[/tex] and concentration of sample B is 0.00003[tex]\frac{mol}{L}[/tex]".
Explanation:
Length of path [tex](l)=1 \ cm\\\\[/tex]
Coefficient extinction[tex](\varepsilon )=6220\ \frac{L}{Mol \ cm}\\\\[/tex]
Absorbace of sample [tex](A)=0.4\\\\[/tex]
Absorbace of sample [tex](B)=0.2\\\\[/tex]
For sample A:
[tex]A=\varepsilon cl\\\\0.4=6220 \times c \times 1\\\\c=\frac{0.4}{6220}\\\\[/tex]
[tex]=0.00064\ \frac{mol}{L}[/tex]
For sample B:
[tex]A=\varepsilon cl\\\\0.2=6220 \times c \times 1\\\\c=\frac{0.2}{6220}\\\\[/tex]
[tex]=0.00003\ \frac{mol}{L}[/tex]
Science- bbbbbbbbbbb
The force between two objects is called_______
1) Electrical conductor
2) Voltage
3) Electric Force
4) Electric Field
Answer:
4.) Electric Field
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Fluorescent FM dyes partition reversibly into biological membranes without penetrating through them. Suppose that you have neurons cultured in a dish, and you incubate them with an FM dye for a period of time before washing the cells with excess medium to remove the dye.a)You find that if you stimulate the neurons to trigger action potentials during incubation with the dye, the synaptic regions of the neurons remain fluorescent after the wash. Propose an explanation for this effect.b)After you have generated fluorescent synaptic regions by this procedure, suppose that you trigger further action potentials while continuing to wash with excess medium. Would you expect the synaptic regions to lose fluorescence
Answer:
a) Emission observed is due to emission of synaptic vessels
b) Yes
Explanation:
a) Proposing an explanation
The emission observed ( the synaptic regions of the neurons remaining fluorescent ) is due to the emission on the synaptic vessels given that FM dyes have lipid-sensitive emission which can be loaded into a recycled synaptic vesicle
b)
The synaptic regions will lose fluorescence when you continue to wash with excess medium, also the more action potentials triggered the more observed emission. hence the increase in the loss of fluorescence is due to the fact that the emissions are not permanent
There are marked differences in the type of organisms found at four different locations at the same tidal height along ta rocky shore. What might account for this
Answer and Explanation:
Many elements can be responsible for this, among them, we can mention the presence and absence of predators in the different places on the rocky coast. This is because predators can influence not only the number of organisms found, but also the types of organisms.
Another element that may be the cause of this variability is the availability of resources necessary for the life of these organisms, in addition, the impact of the waves on the rocks, can cause the variability of the organisms, since some may not be able to resist the impact of the waves.
Please answer!! 20 POINTS AND BRAINLIEST
Answer:
1.crust
2.Divergent boundaries
3.tectonic plates
4.seismograph
5.S-waves
6.P-waves
Explanation:
Two Bio 45 students are having a disagreement about renal function. Dan says that the kidneys work harder when you eat a high-salt diet, whereas Peter says that they work harder when you drink lots of water.
BEST ANSWER GETS BRAINLIEST!!!!!!1
A polygraph test is conducted, and the findings indicate that there is an 80 percent chance of deception. What does this mean for the investigation?
The suspect is guilty and should be arrested for the crime.
The suspect is probably just nervous since 80 percent is a pretty high number and usually indicates a false positive.
The suspect might be guilty, but more information is needed from other parts of the investigation.
There has been a mistake in the polygraph test, and the test should be conducted again to get better results.
Answer:
The suspect might be guilty, but more information is needed from other parts of the investigation.
Explanation:
Due process states innocent until proven guilty. Having an 80 percent chance of deception is not solid proof of anything. It does, however, bring more speculation to the table that this person is indeed guilty, but because there is no actual proof, the investigators must find more information on the matter.
how do allosteric enzymes activate and inhibit chemical reactions in a living organism?
Answer:
Allosteric activators bind to locations on an enzyme away from the active site, inducing a conformational change that increases the affinity of the enzyme's active site(s) for its substrate(s). Allosteric inhibitors modify the enzyme's active site so that substrate binding is reduced or prevented.
Explanation:
thank me later
3. If you were looking at a cell that had all of its chromosomes lined up down the middle of
the cell, what phase must it be in?
1. Telophase
2. Prophase
3. Metaphase
4. Anaphas
Answer:
3. Metaphase
Explanation:
Metaphase is the stage in the cell cycle where the chromosomes line up in a line down the middle of the cell (some people call it the metaphase plate).
The way I like to remember it is: Metaphase is in the Middle.
I hope this helps! :D
Answer:
I'm sorry hindi ko po alam
An opportunistic predator switches prey, capturing whichever prey species is most abundant. As soon as the prey numbers dwindle and another species becomes more abundant, the predator will consume the more abundant species. In doing so, this predator maintains great biodiversity in the community. This type of predator is called a
Answer:
The correct answer is keystone predator.
Explanation:
In sustaining the composition of an ecological community, a keystone species plays an essential function. In the absence of keystone species, the ecosystem would fail to exist and would become drastically different. A predator is a classic illustration of a predator, which inhibits a specific herbivorous species from eradicating the dominant species of plants. In the non-existence of predators, the herbivorous prey would increase enormously and would clean the entire essential plant species, and thus, drastically change the significance of the ecosystem.
write a paragraph summary about the differences between amphibians and mammals (humans).
Answer:
Mammals give birth to live young, whereas the birth of amphibians takes place externally. Mammals are warm-blooded, while amphibians are cold-blooded. Mammals can live in all habitats, unlike amphibians, and have muted colors. Some amphibians can regenerate their limbs.
Artificial wetlands ________. are the major program for replacing lost natural wetlands purify water for use as bottled drinking water are a source of arsenic contamination in Bangladesh are created using xeriscaping methods can help purify water and also provide wildlife habitat
What is an advantage to the type of circuit shown in the image to the left? A. The bulb closest to the battery is the brightest. B. If one bulb burns out, the others will stay lit. C. If one bulb burns out, the others will too.
Answer:b
Explanation:
22. Which of these conditions would most likely be shown in the fossil record as a
reason for mass extinctions?
Answer:increased competition for resources
Explanation:
How can we control the laser light show to stop it from hitting the crowd
Answer:
just turn it off
Explanation:
1)
What is the approximate percentage of Earth's history during which humans have existed,
compared to the age of Earth?
A)
0.04%
B)
1.79%
C)
4.65%
D)
8.32%
Answer:D) 8,32%
Explanation:
Answer: 0.04%
Explanation:
What is the answer answer to number one will mark brainlist
Answer:
GGATTTGGCCCTATA
Explanation:
A pairs with T and C pairs with G. This is called the complementary pairing.
So answer is GGATTTGGCCCTATA
5 The systolic blood pressure reading of 140-159 the systolic blood pressure reading of 140 - 159 is what stage of Hypertension?
A Stage 2
B Stage 1
C Stage 3
D High Normal
Answer:
B. Stage 1
Explanation:
Systolic blood pressure is less than 120 mm Hg and Diastolic less than 80 mm Hg so it is considered as normal. Pre-Hypertension occurs when the Systolic blood pressure is 120 - 139 and Diastolic pressure is 80 - 89. Stage 1 Hypertension is considered when the Systolic blood pressure is 140 - 159 and Diastolic blood pressure is 90- 99. If the Systolic blood pressure is greater than 160 it is considered as Stage 2 Hypertension.
A white-tailed deer cannot make its own food and must consume other organisms
for its nutrition. Therefore, the white-tailed is considered a (an)
A)heterotroph.
B)producer.
C)chemotroph.
D)autotroph. .
Answer:
A) Heterotroph
Explanation:
White tailed deers are consumers and do not produce their own food. Most mammals can’t either. Putting in the heterotroph category.
Hope this helps, good luck!
⚠️PLZ HELP⚠️
Figurative language helps a reader
Learn a foreign language
b. Visualize the poem
c. Make connections to the poem
d. None of the above
Please select the best answer from the choices provided
OA
ов
OD
Answer:
B. Visualize the poem
Explanation:
Figurative language such as Onomatopoeia gives help by visualizing the poem, because you can imagine the sounds and use it as an example to picture what would be going on in the story.
Answer:
b
Explanation:
How can we measure motives?
Some plant seeds have special spiky barbs that can easily get tangled in an animal's fur. The spiky structure of these seeds most likely benefits a plant by
A. keeping animals far away from the parent plant.
B. keeping the seeds from being moved away from the parent plant.
C. attracting pollinators with their bright color and fruity smell
D. helping the seeds to be scattered in new areas to grow.
Compare and contrast the cell cycle with mitosis and the cell cycle with meiosis. Citing 4 similarities and 5 differences.
Answer:
according to the type
Explanation:
they depend on the type
Which statement is true regarding the way in which sex chromosomes are passed on to offspring? Females can pass only Y chromosomes to their offspring. Females can pass either an X or a Y chromosome to their offspring. Males can pass either an X or a Y chromosome to their offspring. Males can pass only Y chromosomes to their offspring.
Answer:
Males can pass either X or Y to their offspring's
Explanation:
Males determine the age (not on purpose) females have the kid
Males can pass either an X or a Y chromosome to their offspring, while females can pass only an X chromosome to their offspring. Therefore, the statement that is true regarding the way in which sex chromosomes are passed on to offspring is: "Males can pass either an X or a Y chromosome to their offspring."
What is the function of sex chromosomes ?Sex chromosomes determine the sex of an individual and are responsible for the inheritance of sex-linked traits. In humans, there are two sex chromosomes: X and Y. Females have two X chromosomes, while males have one X and one Y chromosome.
During sexual reproduction, the sex chromosomes are passed on to offspring from their parents. The father can pass on either an X or a Y chromosome to his offspring, while the mother can only pass on an X chromosome. This means that the sex of the offspring is determined by the father's contribution of either an X or Y chromosome.
If the father contributes an X chromosome, the offspring will be female (XX). If the father contributes a Y chromosome, the offspring will be male (XY). This means that while the mother's contribution is always an X chromosome, the father's contribution determines whether the offspring will be male or female.
Sex-linked traits, such as color blindness and hemophilia, are carried on the X chromosome. Because females have two X chromosomes, they can be carriers of these traits without exhibiting symptoms themselves. However, males only have one X chromosome, so they are more likely to exhibit symptoms of sex-linked traits if they inherit a faulty gene on that chromosome.
Overall, the inheritance of sex chromosomes plays an important role in determining the sex of an individual and can influence the inheritance of sex-linked traits.
Learn more about inheritance at :
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¿De qué manera pueden complementarse la
teoría Sintética y la teoría de los Equilibrios
Puntuados?
La teoría sintética
El redescubrimiento en 1900 de la teoría de la herencia de Mendel por el botánico y genetista holandés Hugo de Vries y otros llevó a un énfasis en el papel de la herencia en la evolución. De Vries propuso una nueva teoría de la evolución conocida como mutacionismo, que esencialmente eliminó la selección natural como un proceso evolutivo importante. Según de Vries (a quien se unieron otros genetistas como William Bateson en Inglaterra), en los organismos tienen lugar dos tipos de variación. Una es la variabilidad "ordinaria" observada entre los individuos de una especie, que no tiene consecuencias duraderas en la evolución porque, según de Vries, no podría "conducir a una transgresión de la frontera de la especie [es decir, al establecimiento de nuevas especies] incluso en las condiciones de la selección más rigurosa y continua ". El otro consiste en los cambios provocados por mutaciones, alteraciones espontáneas de genes que dan lugar a grandes modificaciones del organismo y dan lugar a nuevas especies: “La nueva especie se origina así de repente; es producido por el existente sin ninguna preparación visible y sin transición ”.
Muchos naturalistas se opusieron al mutacionismo y, en particular, los llamados biometristas, liderados por el estadístico inglés Karl Pearson, quien defendió la selección natural darwiniana como la principal causa de la evolución a través de los efectos acumulativos de variaciones individuales pequeñas y continuas (que los biometristas se supone que pasa de una generación a la siguiente sin estar limitado por las leyes de herencia de Mendel).