Answer:
Muscle contraction function.
Explanation:
The nerve endings possess synaptic acetylcholine vesicles ready to be released. The action potential depolarizes the presynaptic terminal and increases the concentration of axoplasmic calcium; Acetylcholine molecules are thus released, so that the concentration of the neurotransmitter at postsynaptic (nicotinic) receptors is temporarily increased. This is followed by post-synaptic membrane depolarization, muscle membrane action potential with increased rnioplasmic calcium concentration, and finally muscle contraction. Acetylcholine is hydrolyzed by acetylcholinesterase and resynaptic at the presynaptic level by cholinecetyltransferase. The etiopathogenesis of myasthenia gravis is autoimmune and there are antibodies against acetylcholine receptors that circulate in the blood, as well as a decrease in the number of receptors on the motor plates, that is, it is produced by the postsynaptic blockage of the myoneural plaque, that generates fatigue and localized or generalized muscle weakness that is characterized by the worsening of the contractile force of the muscle.
The following table lists the number and variety of organisms in
four different ecosystems.
Predict what would happen to Ecosystem 3 immediately after a
volcanic eruption.
Answer:
The following table lists that number and variety of organisms in four different. Predict what would happen to Ecosystem 3 immediately after a volcanic eruption. Its biodiversity would decrease ... 395---Add all of the organisms together and divide by the number of ecosystems
Explanation:
Answer:
Its biodiversity would decrease
Explanation:
D
What changes are caused by the hydrogenation of fatty acids?
A. The smell of fat changes
B. The number of calories per gram of fat is reduced
C. The fat becomes more invisible in foods
D. Liquid oils are converted to solid fats
How does the number of genes in human cells compare with the numbers in other species?
Answer:
While the number of genes in an organism's DNA (red bars) varies from species to species (numbers at right), it is not always proportional to genome size (blue bars, in millions of base pairs). Note how many genes a fruit fly can squeeze out of its relatively small genome.
What is a gene?
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.Comparative genomics also provides a powerful tool for studying evolutionary changes among organisms, helping to identify genes that are conserved or common among species, as well as genes that give each organism its unique characteristics.While the number of genes in an organism's DNA varies from species to species, it is not always proportional to genome size.Learn more:
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The gene for hemophilia in humans is present on the X chromosome only. Which inheritance pattern does hemophilia in humans represent?
Plz help :\
Answer please show more
Explanation:
Is it true that a lizard is the venomest creature?
Explanation:
While most snakes and lizards in North America are not poisonous, a few species can seriously injure or kill someone with their venom if the bite isn't treated quickly. They include the rattlesnake, copperhead, cottonmouth, coral snake, Gila monster, and Mexican bearded lizard.
Answer:
Yes and No
Explanation:
There are many lizards that are quite harmless to people ( in fact most of them) but you can still find ones that are unusually furious and deadly , hope this helped :)
NO LINKS I WILL REPORT U
Answer:
Both of these are correct
moves constantly between Earth's surface and the atmosphere
and it is matter that is essential for life
Answer:
Water is matter is essential for life
Explanation:
will give 15 points and brainliest just awnser like
1.ghkdigh
2.ighdf
3.ygf
and so on thanks!
Answer:
1.Law of conservation of energy
2. Energy transformation
3.Friction
4. electric, thermal
5. Kinetic, Potential
6. Potential, Kinetic
7.Kinetic
8.Radiant, electrical
9. Electrical
10. Radiant
which animal is it I am confused
Answer:
Fox
Explanation:
The fox receives all the energy from what it's pray ate and so on.
what are compulsory vaccinations?
Answer:
compulsory Vaccination is the health policy a government adopts in relation to vaccination .
In the past, Native American Indians buried dead fish along with corn seeds. This technique was used because the decomposing dead fish would:
Answer:
Give nutrients for the corn seed to grow
Explanation:
The native Americans were using fish as fertilizers. Since fish fertilizer enhances soil quality, it also enhances soil productivity by supplying the essential nutrients for crop growth Fish fertilizers have blister nitrogen as well as the essential nutrients phosphorus as well as potassium.
This technique became popular when Native Americans taught the colonists such techniques of surviving in wilderness.
One of the four fundamental interactions in nature is? Electromagnetism Gravity Strong interaction All of the above
Answer:
The correct answer is All of the above. In nature there are four forces, (also called interactions or fields in Physics) that are responsible for all phenomena in the universe: the gravitational force or interaction, the strong interaction, the electromagnetic and the weak nuclear.
Explanation:
The fundamental interactions or forces that describe all the interactions between the constituents of matter are each of the interactions that matter can undergo and that cannot be decomposed into more basic interactions. There are four basic forces that describe all interactions: Gravitational, that is responsible for the interaction between particles with mass and, by extension, for the configuration on a macroscopic scale of the Universe and its stability. Electromagnetic, is responsible for the interaction between electrically charged particles and, by extension, for all Chemical reactions, Weak is responsible for the disintegration of certain unstable particles; that is, of those processes in which some particles decompose (decay) into lighter ones and Strong interaction is the most complicated interaction to describe due to its different behaviors at different action distances; by means of which a global vision of the to physics without breaking it down.
What percent of our overall global electricity use is accounted for by the internet and computer usage?
A.20%
B.5%
C.10%
D.50%
Answer:
I think it's 10% sorry if i'm wrong
Explanation:
Answer:
50 percent
Explanation:
How has our understanding of the age of the earth influenced our understanding of the evolution of new species from preexisting species?
Answer:
Well, in my opinion evolution is not true. If evolution was true how come humans have not developed into more supreme being again?
Explanation:
Evolution is all fake. Do not trust whose who say it is true, they are liers.
what not to do when handling acids and bases
Wear protective gear (goggles, long-sleeved clothes, and gloves) when using acids and bases. Do not allow acids or bases to come in contact with skin or eyes. Limit the amount of acids and bases transported for usage around the house. Cap the bottles of acid and base cleaners tightly.
What is the major cause of air pollution?
Answer: Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.
Explanation: Hope this helps!!!
Asian carp are fish that were imported into the United States to be raised in captivity as a food source. The carp can grow to 100 pounds and feed on many types of small fish. Over time, the carp escaped into the wild and now exist in several river systems. It has no natural predators and outcompetes native species for resources. What will most likely occur as a result?
a.The genetic diversity and the biodiversity of the ecosystem will increase.
b.The genetic diversity and the biodiversity of the ecosystem will decrease.
c.The genetic diversity will increase and the biodiversity of the ecosystem will decrease
d.The genetic diversity will decrease and the biodiversity of the ecosystem will increase
Answer:
Try B
Explanation:
If the fish are the only thing that can survive, There will eventually be no diversity
Answer:
b
Explanation:
guess
since they have no predators
they would increase in population
then
they would take up of resources of others
Which correctly lists the digestive system careers from the least amount of formal education to the most?
•dietitian, endoscopy technician, orthodontist
•gastroenterologist,
dietitian, colorectal surgeon
•orthodontist, colorectal surgeon, gastroenterologist
•endoscopy technician, orthodontist, gastroenterologist
Answer:
endoscopy technician, orthodontist, gastroenterologist
Answer:
endoscopy technician, orthodontist, gastroenterologist
Explanation:
took the test.
PLEASE HELP
The photo shows a plant that prefers very little water and
nutrient-poor soil.
Which type of ecosystem is most likely to have a large number of these
plants?
A. Grassland
B. Desert
C. Rain forest
D. Deciduous forest
as for my answer is B....
see on the comment bellow
Answer:
desert 100%
Explanation:
The pH of a solution is a measure of how acidic or basic it is. The greater the pH, the more basic the solution is. Corals and other marine invertebrates require less energy to make their exoskeletons and shells when ocean water is slightly basic. As carbon dioxide concentrations in Earth’s atmosphere rise, ocean water absorbs carbon dioxide and becomes more acidic. This process is called ocean acidification. How do you think ocean acidification will affect the coral reef?
Explanation:
Because coral reefs have limestone (calcium carbonate), the coral reefs will be greatly affected. The increase in hydrogen ions in the ocean will corrode the coral reef, making it inhabitable for species. This will affect the crabs that get their food and the community that lives within in it. Making countless of species to loose their lives and their way if living.
A team of students from UGA are completing a field study to determine the impact the American alligator has on ecosystems in places such as the Okefenokee Swamp in South Georgia over a 3-month period. In one area, they have removed the alligators and in another area they have left the alligators. What is the hypothesis the students are testing?
A.
If the American alligator is a keystone species, then the ecosystem with alligators absent will be healthier and contain greater biodiversity.
B.
If the American alligator is a keystone species, then the ecosystem with alligators present will be healthier and contain greater biodiversity.
C.
If the American alligator is a tertiary consumer, then the ecosystem with alligators present will contain fewer primary producers.
D.
If the American alligator is a tertiary consumer, then the ecosystem with alligators absent will contain more primary producers.
Answer:
B
Explanation:
100% B
If the American alligator is a keystone species, then the ecosystem with alligators present will be healthier and contain greater biodiversity.
The diversity of living organisms on Earth, including plants, animals, microbes, and fungi, is referred to as biodiversity.
The Earth's biodiversity is so diverse that many species are still undiscovered, but because of human actions, many species are facing extinction, endangering the Earth's amazing biodiversity.
The vast variety of life on Earth is referred to as biodiversity. It can be applied more precisely to all the species found in a certain area or environment. Every living creature, including plants, microorganisms, animals, and people, is referred to as biodiversity.
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This is a what
A human b alien C mammal D all the above.
Answer:
A) he is a human okkkkkkkkkk
Answer:
well when looking closer at the picture you see diffrent things and humans are mammals so im going to go with d all of the above
Explanation:
The autonomic nervous system works without our control. Which of the following does
cardiac muscle fall under?
involuntary or
voluntary
Answer: Involuntary.
The Autonomic nervous system is a subdivision of the Peripheral nervous system and it is in charge of the involuntary processes in the body such as blood pressure, respiration and the heart rate. As such, its effectors are under involuntary control.
The Autonomic nervous system controls the smooth and cardiac muscles in the body as well as the glands. This is where it earns its other name, the Visceral nervous system.
Explanation:
One end of the rope is vibrated to produce a wave with a wavelength of 0.25 m. The
Frequency of the wave is 3.0 Hz. What is the speed of the wave? *
1)3.00m/s
2)2.50m/s
3)0.75m/s
4)1.25m/s
Answer:
3) 0.75m/s
Explanation:
The wavelength of a wave is calculated using the formula;
λ = v/f
Where!
λ = wavelength of wave (m)
v = velocity or speed (m/s)
f = frequency of wave (Hz)
According to this question, one end of a rope is vibrated to produce a wave with a wavelength (λ) of 0.25 m and frequency (f) of 3.0 Hz.
Using λ = v/f
v = λ × f
v = 0.25 × 3
v = 0.75m/s.
Which of the following is a positive way that palm oil farms provide humans with natural resources.
Palm oil is found in all types of food and biofuels.
Palm oil produces more oil for a similar amount of land than other plants.
Palm oil tastes better and is healthier than other types of oils.
Palm oil has no positives related to natural resources.
Answer:
The palm oil industry has helped lift millions of people out of poverty in Indonesia and Malaysia, which together account for around 85 per cent of global production. Oil palm plantations have created millions of well-paying jobs, and enabled tens of thousands of smallholder farmers to own their own land.
Explanation:
Hope it helps.
Brainliest plz!!!!!!!!!!!! Plz, plz, plz, plz!!!!!!!
Answer:
Option -2 Palm oil produces more quantity of oil for a similar amount of land than any other plant is the correct answer.
Explanation:
firstly,
what is palm oil?Edible vegetable oil that is gathered from the mesocarp i.e., the reddish pulp of the fruit of the oil palms is known as palm oil. The oil is used in food manufacturing, making beauty products, and as biofuel.
Palm oil has many advantages that are listed below-
Palm oil is used for preventing aging, cancer, and brain disease and reduces heart disease risk.Oil palm plantation has provided millions of paying jobs and enabled thousands of smallholder farmers to own their land. Palm oil has a long shelf-life and is solid at room temperature, making it an ideal ingredient in a variety of food.Palm oil is used to manufacture sodium lauryl sulfate, which is widely used as a foaming agent(soap) in many body care products for e.g.-soap, detergents, etc.Besides all these positive ways one of the important uses of palm oil farms is that it helps in conserving natural resources.
How do palm oil farms help in conserving natural resources?
Oil palms are significantly more efficient than any other oil-producing crops. A single hectare of land can produce about 4.17 metric tons of sunflower oil, 0.16 tons of ground oil, and 0.39 tons of soybean oil. this means that significantly less land has to clear to meet demands for vegetable oil while other crops require at least five times more land to produce the same volume of oil as oil palms.
Conclusion-Palm oil produces more oil per land area than any other equivalent vegetable oil crops.
hence, the second option that says a similar amount of land produces more oil in the case of palm oil is the correct answer.
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Humans are in the group of living organisms that has the highest percentage of
species.
A. True
B. False
Thank you!
Answer:
The answer would be B. False.
Explanation:
Insects actually have moe than 1 million species, and that's only the ones that have been discovered so far, so that means it's false to say humans have the most.
Explain why Calix's cells having more DNA than a normal cat meant point mutation was not the cause.
Mutation is the reason for the more DNA in Calix's cells.
Calix's cells having more DNA than a normal cat because of the mutation in the genes. There is no other way through which DNA in a gene increases. This increase in DNA from a normal condition leads to cancer and other disorders.
Mutation occurs in an organism when they are exposed to radiation which damaged the DNA of that organism so we can conclude that mutation is the reason for the more DNA in Calix's cells.
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Calix's cells having more DNA than a normal cat meant point mutation was not the cause but it happens due to chromosome number.
These Calix's cats are taken into consideration by all ladies  due to the fact they have got X chromosomes. As not anything extra than an ensuing or outcome, second in time genetic mutations, which appear to be preferred substitutions that affect the duration of the swapping or exchange meant of a nucleotide collection with simply any other nucleotides, ensue in an extra quantity of DNA for the duration of the Calix's cats.
What are cells in DNA?All residing matters have DNA inside their cells. In fact, almost every cell in a multicellular organism possesses the whole set of DNA required for that organism.
Thus the above reaction is appropriate.
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Which of Newton’s laws explains why the balls did not remain in the container at the end of the ramp?
Newton’s Law of inertia
Newton’s Law of force, mass, acceleration
Newton’s law of Action/ Reaction
Newton’s law of gravity
Answer:Newton's first law
Explanation:
Friction and gravitational pull are common unbalanced forces that change the motion of objects on the Earth. Friction acts on objects to slow them down, such as a ball rolling across something like a carpet or sand.
Into which chamber of the heart does oxygenated blood enter?
Describe how deposits of gold and copper are formed.
Answer:
Gold are formed in the
Part of the Gold exhibition. Gold may occur as deposits called lodes, or veins, in fractured rock. It may also be dispersed within Earth's crust. Most lode deposits form when heated fluids circulate through gold-bearing rocks, picking up gold and concentrating it in new locations in the crust.
Explanation:
Copper formed in the
Most nonrecycled supplies come from porphyry copper deposits (PCDs), which form when hot, metal-bearing fluids percolate up through Earth's crust. ... These fluids bubble up through the crust and collect in pores in the rock, where they sit, waiting for the final step that will allow them to form copper minerals.Jun 7, 2015
Compare and contrast adaptations displayed by animals and plants that enable them to survive in different environments
Answer:
All organisms need to adapt to their habitat to be able to survive. This means adapting to be able to survive the climatic conditions of the ecosystem, predators, and other species that compete for the same food and space.