When acetylcholine binds to its receptor, the muscle is stimulated and contracts. In myasthenia gravis, immune proteins called antibodies block, alter, or even destroy acetylcholine receptors at the neuromuscular junction, preventing the muscle from contracting.
How does myasthenia gravis develop in relation to the immune system?Myasthenia gravis causes antibodies to be produced by your immune system that either block or harm many acetylcholine receptor sites in your muscles. Because there are fewer available receptor sites, your muscles get fewer nerve impulses, which results in weakening.
Myasthenia gravis (MG) is a long-term autoimmune disorder in which antibodies prevent the nerves' ability to communicate with the muscles, weakening the skeletal muscles as a result. Acetylcholine receptor antibodies are the main cause of myasthenia gravis, a neurological disorder that weakens and exhausts the voluntary muscles.
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What incentives does the government
offer to business who lower their
carbon emission and use alternative
energies?
A. free waste disposal
B. tax breaks
C. free alternative energy sources
D. more land to expand to
PLEASE HELP ME!
For qualifying renewable energy technologies and projects, the federal government offers a variety of tax credits, grants, and loan programs.
How does a tax credit for energy work?An energy tax credit is a government incentive that lowers the cost of alternative energy resources for individuals and businesses. Those who meet the criteria are reimbursed when they pay their income taxes, with the credit amount either reducing the total amount owed to the IRS or being added to their refund if one is due. In 2018, 2019, 2020, and 2021, an individual may claim a credit for Congress extended the ITC in August 2022, increasing it to 30% for installations between 2022 and 2032. 10% of the cost of qualified energy efficiency improvements and the amount of the taxpayer's residential energy property expenditures paid or incurred during the taxable year (subject to a $500 overall credit limit).To learn more about energy work, refer to:
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asexual reproduction
Answer:
Asexual Reproduction is the act of reproducing without the need of sexual intercourse
Examples:
Amoebas,Komodo Dragons,Starfish,Whiptail Lizards,Python Snakes
ATP --> ADP + P is an example of an _reaction,because there is __an
of the energy
energy.
endergonic; input
exergonic; input
exergonic; output
endergonic; output
ATP → ADP + P is an example of an endergonic reaction, because there is an output of the energy.
An endergonic reaction is one that calls for free electricity to proceed. An example of an endergonic response of biological hobby is photosynthesis. Photosynthetic organisms conduct this response by using using sun photons to drive the discount of carbon dioxide to glucose and the oxidation of water to oxygen.
Within the exergonic response, the reactants are at a higher unfastened power degree than the goods reaction is going energetically downhill. In the endergonic response response, the reactants are at a decrease loose power stage than the products response goes energetically uphill.
The endergonic reactions of photosynthesis and chemosynthesis allow creatures at the bottom of the energy pyramid to live to tell the tale and to feed organisms like ourselves, who get their strength by means of breaking down sugars and fats to free up that stored power.
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What is the importance of knowing the 5R techniques?
Answer:
These R's include: reduce, reuse, recycle, repurpose and finally, refuse. This is an important methodology for businesses to follow to ensure they can reduce waste and boost their recycling efforts. This ultimately lessens the amount of waste that will end up in landfill and will optimise your recycling programs.
Explanation:
hope it's help:)
When do
resources
become a cause
of competition?
A. when a resource is mutated
B. when a resource is unlimited
C. when a resource is limited and being used by multiple
species
Answer: C. when a resource is limited and being used by multiple
species
Explanation:
Competing for Resources
Niche- the space, environmental
conditions, and resources
that a species needs in
order to survive and
reproduce
If niches overlap . . .
• Two or more species
rely on the same
limited resources.
• The result is
competition.
Competitive exclusion: one of
the competing species unable to
gain sufficient resources
How are damaged frontal lobes better if a younger person is injured in the frontal lobe than a 60-year-old man?
The frontal lobe damage would be greater to the 60-year-old man owing to the shrinking brain size.
What are the frontal lobes?The brain is the organ that has the sole job of attempting and actually performing the task of trying to get all the parts of the body working effectively. he brain is a sort of administrator of the body. It the follows that the brain is the sole coordinator of the body and it is rightly located at the head.
Now there are several parts of the brain that are known to play various roles in the life of an individual. In this case, we can see that we talking about the frontal lobe located around the forehead and is very much impacted by an injury.
Owing to the fact that the brain shrinks with age, the older person would suffer a much higher memory injury compared to a younger person.
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the distance between Earth and mars is 2.25Km. When converting using the conversion factor 1 AU=1.5 x 10 power 8km, the distance between the planets is__ . the astonomical unit AU is__ a light year
The complete statement is given as "The distance between Earth and mars is 2.25Km. When converting using the conversion factor 1 AU=1.5 x 10 power 8km, the distance between the planets is 1.5 AU."
This is further explained below.
What is an astronomical unit?Generally, The astronomical unit is a measure of length that is equal to 8.3 light minutes or 150 million kilometers. It is approximately equivalent to the distance that separates the Earth and the Sun.
In conclusion, The distance from Earth to Mars is about 2.25 kilometers. Using the conversion factor that one AU is equal to 1.5 x 108 kilometers, the distance that separates the planets is calculated to be 1.5 AU.
The light-year and the AU are not interchangeable units of measurement. The distance traveled by light throughout one year is about 9.5 x 1012 kilometers.
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What factors led the red wolf to be considered extinct in the wild in the 1980s?
Answer:
human persecution and habitat loss
Explanation:
As human travel increases, the number of introduced species likely
O decreases.
O increases.
O stays the same.
O is eliminated.
As human travel increases , the number of introduced species likely increases .
What is species and how human travelling can increase the number of introduced species?As humans will start moving more from one place to another there will be more species number.The number of introduced species will increase sharply seeing the increase in the number of human population doing migration and travelling.The breakdown of regional distinctiveness leads to increase in the travelling period of the humans .And most importantly the introduction of new species will increase and will be impacted by the human who have come from elsewhere for either travelling purposes or migration purposes.To know more about species visit:
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Cool air is less dense than warm air.
Question 7 options:
True
False
A student decided to find the density of her house key to try and identify the type of metal from which it is made. She found the volume of the key to be 5 mL and the mass to be 39.5 g. Using the chart above, from which type of metal is the key made?
Going by the density of the key which is 7.9 g/mL, the key is likely made from iron.
DensityThe density of a substance is the ratio of the mass of the substance and of its volume.
The density of a substance can be mathematically expressed as:
Density = mass/volume.
Considering the key in question whose volume is 5 mL and mass is 39.5 g. The density can be determined as:
Density of the key = 39.5 /5
= 7.9 g/mL
In order to determine the nature of the metal that the key was made from, one would need to check the table of density of metals. Any metal whose density corresponds with, or is close to 7.9 g/mL would be the metal that the key is made from.
From a chart of density, the metal with a density of 7.9 g/mL is iron.
In other words, the key must have been made from iron.
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Use this sentence: A student creates the following list of animals found in a specific biome for
a report: gila monster, rattlesnake, coyote, and jackrabbit.
Which biome is this student writing this report about?
(1 point)
desert
grassland
tropical rain forest
tundra
You have been given a stock glucose solution with a concentration of 100mg/mL. To perform the glucose assay in lab today, you must dilute the 100mg/mL stock solution of glucose to concentrations of 80mg/mL, 60mg/mL, 40mg/mL, and 20mg/mL. You need to prepare 1mL of each dilution. Explain how you would make the 4 dilutions from the glucose stock solution.
In order to prepare 1 mL 80 mg/mL, 1 mL 60 mg/mL, 1 mL 40 mg/mL, and 1 mL 20 mg/mL glucose solution from a 100 mg/mL stock solution, 0.8 mL, 0.6 mL, 0.4 mL, and 0.2 mL of the stock will be taking and diluted with 0.2 mL, 0.4 mL, 0.6 mL, and 0.8 mL water resectively.
DilutionThe dilution principle states that the number of moles of solute in the original stock before dilution must be equal to the number of moles of solute in the diluted stock.
This principle is mathematically expressed as: m1v1 = m2v2
Where: m1 and v1 = molarity and volume before dilution
m2 and v2 = molarity and volume after dilution.
In this case, the stock is 100 mg/ml.
To prepare 1 ml, 80 mg/mL solution: m1 = 100 mg/mL, v2 = 1 mL, and m2 = 80 mg/mL.v1 = v2m2/m1
= 1x80/100
= 0.8 mL
This means that 0.8 mL of the stock will be taken and diluted with 0.2 mL of water to make 1 mL, 80 mg/mL solution.
To prepare 60 mg/mL solution:v1 = 1 x 60/100
= 0.6 mL
This means that 0.6 mL of the stock will be taken and diluted with 0.4 mL of water to make 1 mL, 60 mg/mL solution.
To prepare 40 mg/mL solution:v1 = 1 x 40/100
= 0.4 mL
This means that 0.4 mL of the stock will be taken and diluted with 0.6 mL of water to make 1 mL, 40 mg/mL solution.
To prepare 20 mg/mL solution:v1 = 1 x 20/100
= 0.2 mL
This means that 0.2 mL of the stock will be taken and diluted with 0.8 mL of water to make 1 mL, 20 mg/mL solution.
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2. Also submit a text-file, in which you explain in about one page what you have learned about the evolution of hominids. In the end, complete the following sentence: The notion that we evolved from modern apes (chimps) is clearly wrong. Rather, what we have evidence for is ....
The notion that we evolved from modern apes is wrong but we have evidence that humans evolved from apelike ancestors.
How did hominids evolve?With time, genetic change can change the overall way of life of a specie like eating behavior, growth, and place of living. Human evolution took place when new genetic changes occur in the ancestor's populations which favor new abilities in that organisms to adapt to environmental change. Scientific evidence indicates that the physical and behavioral traits that are shared by all people come from apelike ancestors which evolved about six million years. One of the earliest defining human traits is bipedalism i.e. the ability to walk on two legs was evolved over 4 million years ago.
So we can conclude that hominids evolved because of the genetic change that occurs with time due to environmental change. We have many evidence that humans evolved from apelike ancestors due to environmental change.
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How would you ensure you have valid data?
PLS HELP ITS DOU TOMORROW!!
6TH GRADE SCIENCE
Answer:
To ensure valid data, you have to run it twice or three times and see if you get the same thing you got to before
How might you model the relationship between a tomato plant and the hornworm catepillar?
Answer:
Parasitism.
Explanation:
The relationship between a tomato plant and the hornworm caterpillar is parasitism because parasitism is a type of symbiotic relationship in which one organism get benefits and the other get harmed. We know that hornworm caterpillar feed on leaves and destroy the tomato crop. So it gets nutrients from tomato plant and the tomato plant is negatively affected. The input of this system is the vegetative part of tomato plant while the output is the conversion of hornworm caterpillar into a moth.
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A spoonful of a white substance is mixed into a beaker of water to form a solution. The substance is either sugar or salt. Which step would be most useful for finding out whether sugar or salt is in the beaker?
To determine whether the substance is sugar or water, get a battery and connect a wire to it to a light bulb. Allow the circuit to be completed by the solution; if the substance is water, the bulb will light up as salt is an electrolyte, but if it is sugar, the bulb will not light up as sugar is not an electrolyte
What are electrolytes?Electrolytes are substances that when in the molten or solution form conduct electricity and are decomposed by the electricity passing through them.
Electrolytes are ionic compounds. Because the ions are not free to move when they are in the solid state, electrolytes do not conduct electricity as solids except they are molten or dissolved in water.
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The spores that funguslike protists produce
A:
break down food for the protist
B:
produce slime on which the protist can move
C:
form pseudopods
D:
grow into new organisms
Answer: D. grow into new organisms
Your friend Elena beat her old weightlifting record yesterday, but today she woke up
barely able to move her legs. She says she feels a lot of pain whenever she bends her
legs. With this information, the most likely diagnosis would be:
passive muscle strain.
active muscle strain.
delayed onset muscle soreness.
acute muscle spasm.
The most likely diagnosis for this person who woke up barely able to move her legs would be delayed onset muscle soreness (option 3).
What is delayed onset muscle soreness?The expression delayed onset muscle soreness makes reference to a condition in which a person exhibits limited muscle movement, which may be due to a different condition or also due to excessive physical exercise over a short period of time.
Therefore, we can conclude that delayed onset muscle soreness may be a condition that might emerge in an individual under excessive physical exercise.
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What is a sugar apple?
Answer:
Ooh! Loving all these fruit questions, Anyways this is a great fruit. Sugar Apples or Sweetsop is native to the tropical Americas but is also widely grown in Pakistan, India, and the Philippines. The fruit looks a bit like a pine cone and is about 10 cm in diameter. Under the hard, lumpy skin is the fragrant, whitish flesh of the fruit, which covers several seeds inside, and has a slight custard taste.
Explanation:
In tomatoes, red fruit (R) is dominant over yellow fruit (r). A plant that is homozygous for red fruit is crossed with a plant that has yellow fruit. List the possible genotypes and phenotypes for the offspring along with their percentages.
The possible genotypes and phenotypes for the offspring along with their percentages.
Homozygous individuals in diploid organisms (2n) carry two copies of the same gene variation (i.e., the same allele).Heterozygous individuals carry two alleles for the same gene locus.In total dominance, the dominant allele entirely covers the recessive allele.This is further explained below.
What are phenotypes?Generally, A collection of an organism's visible features or traits is referred to as its phenotype in the field of genetics.
The phrase refers to the physical shape and structure of the organism, as well as its morphology, its developmental processes, its biochemical and physiological qualities, its behavior, and consequences of behavior.
In conclusion, When a dominant red fruit (RR) plant is bred with a recessive over yellow fruit (RR), the phenotypic and genotype are Rr. Complete supremacy.
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How does an enzyme catalyze a chemical reaction?
A. It reduces the amount of energy needed for the reaction to begin.
B. It reacts with the substrate to form the product.
C. It makes a copy of the sequence of nitrogen bases in the
substrate.
D. It forms a layer of insulation that protects the substrate from the
cold.
Answer:
A
Explanation:
An enzyme does not alter a chemical reaction but shift so as to neutral it.
Option A is most suitable
what are the two processes in meiosis that create genetic differences among cells?
Answer:
independent assortment during anaphase and crossing over during prophase
Explanation:
genetic material is swapped during crossing over
chromosomes from either mother or father could be put into any gamete during independent assortment
The two processes in meiosis that create genetic differences among cells are independent assortment and recombination.
What are recombination and independent assortment?DNA fragments are broken and recombined during the recombination process to create novel allele combinations. The genetic variation that results from this recombination process at the gene level reflects variations in the DNA sequences of various species.
Recombinant and novel gene combinations are produced by the independent collection of genes.
The connected genes do not demonstrate independent assortment, since they are inherited together. More parental types and fewer recombinant are created because connected genes lack independent assortment.
Thus, the two processes are independent assortment and recombination.
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13
Select the correct answer from each drop-down menu.
Vitamin B12 is important for the body to function. It helps keep nerve cells healthy, and it helps with the formation of red blood cells.
When someone is vitamin B12 deficient, one of the reasons could be that the person's
v is not
y the vitamin efficiently.
When someone is vitamin B12 deficient, one of the reasons could be that the person's dies does not contain proper amount of vitamin B12.
Is Vitamin B12 important?A crucial B vitamin is vitamin B12. It is essential for the health of the brain, the generation of red blood cells, and nerve tissue. Vitamin B12 can also be called as cobalamin.
When the body cannot absorb enough vitamin B12, a deficiency or an insufficiency can develop. If left untreated, this can cause a variety of symptoms, including the development of irreparable brain problems.
Like every other B vitamin, this vitamin B12 is a water-soluble vitamin. This implies that it can dissolve in liquid and circulate through the body.
Up to four years’ worth of vitamin B12 can be stored by the body, and any extra or undesired amounts can be excreted in the urine.
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How does the temperature of water change if you heat it after it has alread
reached the boiling point?
The temperature of water does not change.
This is because when water is heated to its boiling point of 100 degrees Celsius, it usually takes more energy to turn a liquid into a gas, so the extra heat helps with that conversion. The temperature of water, even if it reaches its boiling point, does not change until all the water evaporates into the atmosphere. Depending on the type of container, the temperature will rise when the water runs out.
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This plant cell has been sliced in half and you are looking into one of the halves. How would you describe the structure of the cell?
The fundamental unit of life in species belonging to the kingdom Plantae is the cell. They are eukaryotic cells, which have specialized components called organelles and a real nucleus that performs several duties. They also have a cell wall, which serves as support for the structure.
Structure of plant cell :Plant cells have a cell wall, a large central vacuole, and plastids like chloroplasts. The cell wall is a substantial, rigid covering that encloses and physically supports the cell. Outside the cell membrane is where it is found. Turgor pressure against by the cell wall is maintained by the central vacuole.
After mitosis, plant cells divide in half by building a new cell wall (cell plate) between daughter nuclei. The phragmoplast, a cytoskeletal component, receives golgi-derived vesicles that are then transported there and fused to form the cell plate.
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What’s the correct answer answer asap
Answer:
The answer is D. Jaw bone
Which is not an abiotic factor?
A. soil
B. temperature
C. climate
D. trees
Answer:
Option D. should be correct
Explanation:
prove me wrong
Which phrase best describes
nuclear fusion?
the spontaneous emission of radiation from an unstable nucleus
the process by which small nuclei
combine into a
larger nucleus
the process by which a large nucleus IS divided into smaller nuclei
d
series of reactions in which particles from one reaction trigger the next reaction
Answer: A larger nucleus
POSSIBLE POINTS 909
1) Fertilizers added to crops on farms can collect in runoff and enter the
watershed. This problem would be reduced in areas where
A
A) crops are grown for animals as well as humans.
B B) farms are situated on the sides of mountains.
CC) an extended drought leads to little or no rain.
D D) the growing season of the crops is longer.
1 2 3 4 5 6
Answer:
C
Explanation:
An extended drought leads to little to no rain.
Answer:
c
Explanation:
.