When an action potential arrives at an axon terminal at a neuromuscular junction, it causes the opening of _______ channels, increasing the concentration of this ion within the cell, which ultimately triggers fusion of neurotransmitter vesicles with the presynaptic cell membrane.

Answers

Answer 1

Answer:calcium

Explanation: don't have one


Related Questions

Is it worth it to genetically modify food? Consider the risks and benefits of genetically modified foods in farming in your answer.

Answers

Answer:

no is not hygienic because it's not healthy

Answer:

The bottom line is that while there are benefits to GM crops, there are substantial downsides. Remove the herbicide resistance, and the benefits increase a lot. GM technology may also one day prove useful in other ways, e.g. helping adapt crops to climate change by introducing genes for heat or drought resistance.

Explanation:

The images show the stages of human development. At which stage does cell differentiation start?

Answers

Answer:

the second picture is your answer

Answer:

the second picture to your right

Explanation:

what type of questions can twin studies help scientists answer?

Answers

This gives helps us answer the question: "is behaviour nature or nurture?"

During the 1970s the U. S. Corn crop was almost completely wiped out by a leaf fungus. Why did this happen, and how was the corn plant saved from extinction?

Answers

Answer:

the U. S. Corn crop was almost completely wiped out by Race T of the fungus Exserohilum turcicum

Explanation:

The sphincter that regulates the flow of chyme from the stomach into the small intestine is the __________ sphincter.

Answers

Answer:

Pyloric

Explanation:

The bottom region of the stomach is called the pylorus or pyloric region. Because the sphincter is located at the end of this region, it's called the pyloric sphincter (as one could probably guess).

How an mRNA is synthesized using a gene

Answers

The nucleus uses the nucleotide sequence of DNA as a template to make mRNA. The enzyme RNA polymerase II catalyzes this activity, which requires nucleotide triphosphates as substrates. Transcription is the process of producing mRNA from DNA, and it takes place in the nucleus. The DNA of a gene serves as a template for complementary base-pairing during transcription, and an enzyme known as RNA polymerase II catalyzes the synthesis of a pre-mRNA molecule, which is then processed to generate mature mRNA.

On your first research mission you make an amazing discovery by finding a new species living in

the hostile environment of the Sahara desert. After observing it carefully you determine that it is

not an autotroph, it is multicellular, and it does not contain any chitin. What is the best

classification for it?

A. Protista

B. Plantae

C. Animalia

D. Eubacteria

Can someone give me an answer & explanation ?

Answers

Answer:

B i might be wrong

please help me :( i need help​

Answers

Answer:

The specific base sequence for these amino acids is: GTG/CAC/CTG/ACT/CCT/GAG. Sickle cell hemoglobin (Hemoglobin S) results when, glutamic acid that is normally present in the sixth position on the beta globin chain is substituted with valine.

Question 8)
An element is also a pure substance. What is the reason for this?
be
O A An element contains only one type of particle.
abe
OB An element can combine with another element.
abe
OC Different elements have different properties,
OD There are many ways that elements can combine.

Answers

An element is also a pure substance. The reason for this is because an element contains only one type of particle.

Option A is correct

What is the primary function of the mitochondria in an animal cell?.

Answers

Answer:

They Produce Energy and give it out to other things in the cell.

Explanation:

Does this help you???

Which three observations are caused by plate tectonics?

Answers

Answer:

mountain ranges. valleys. volcanoes. these can also cause earthquakes which will cause other things.

Explanation:

Gene control mechanisms, or "gene expression," control _____.

A kinds and amounts of proteins in a cell
B DNA replication
C mRNA translation
D protein synthesis

Answers

Answer:

I believe the  correct answer is C. mRnA translation.

Explanation:

Because the gene expression is controlled on two levels. First, transcription is controlled by limiting the amount of mRNA that is produced from a particular gene. The second level of control is through post-transcriptional events that regulate the translation of mRNA into proteins.

Put the rock layers in order from oldest to youngest

Answers

Explanation:

here is the answer and I am NOT going to say Hope this helps because that annoys me when people say that have a nice day

What are cryptograms?Name any two divisions of it?​

Answers

The cryptogams are flowerless and seedless plants. They show hidden reproductive organs and produce spores for reproduction. Crytogams include division Thallophyta, Bryophyta and Pteridophyta.

Describe how organisms at the first tropical level in an ecosystem obtain energy

Answers

From the sun converting the energy in the sun to carbohydrates

Imagine you discover a new species and are trying to determine if it is a mammal. What are three things you would look for

Answers

If they are warm-blooded
If they produce milk
If they have hair of some sort

PLEASE HELP


Mutation is a change in the DNA. Mutations that can be passed on to
______ may result in_______

Answers

Offspring & generations

…. Can be passed on to OFFSPRING may result in GENERATIONS

Have a lovely night

1. Which of the following structures makes cyanobacteria optimal symbionts for eukaryotic organisms needing oxygen and nutrients?
A.
chloroplasts

B.
plasmids

C.
thylakoids

D.
capsules

2.In the absence of meiosis and s3xual reproduction, what general process allows genetic recombination among prokaryotes?

A.
evolution

B.
mutation

C.
horizontal gene transfer

D.
endospore formation

3.Which of the following “environments” could provide the BEST chance of survival via symbiosis to a photoautotroph bacterial species?

A.
the intestine of a cow

B.
the eye of a flashlight fish living in the deep ocean

C.
a colony of fungi near a pond

D.
the interior of an ant’s nest

4.Which of the following is a feature entirely shared by the domains of bacteria and archaea, indicating their common prokaryotic origin?

A.
living in colonies

B.
autotrophy

C.
circular chromosomes

D.
being extremophiles


5.Which statement about prokaryotes is true?

A.
The vast majority of prokaryotes are pathogenic.

B.
Prokaryotes are widely used for bioremediation.

C.
It is important to try and rid your body of all prokaryotes.

D.
Prokaryotes have no industrial uses.

Answers

Answer:

1) B. plasmids

2) C. Horizontal gene transfer

3) C. a colony of fungi near a pond

4) C. circular chromosomes

5) B. Prokaryotes are widely used for bioremediation

Answer:

1 - C. thylakoids

2 - C. horizontal gene transfer

3 - C. a colony of fungi living near a pond

4 - C. circular chromosomes

5 - B. prokaryotes are widely used for bioremediation

Explanation:

Where would you find the warmest waters?


polar zone


surface-mixed zone


deep zone


transition zone

Answers

Answer:

Surface Mixed Zone

What happens when pepsin enters the small intestine?.

Answers

Answer:   When pepsin enters the small intestine, it becomes inactive. Pepsin is a powerful enzyme that becomes active in the presence of hydrochloric acid

Hope this helps!

VERY EASY, HELP
Which of the following is described as a slow abiotic change?

A. climate change


B.growth of a forest


C.a fire

Answers

Answer:

I believe the answer is A. Climate Change

An abiotic change is a nonliving part of an ecosystem that shapes the environment.

A fire is not part of an ecosystem, and it isn't slow.

The growth of a forest is a living part of an ecosystem.

Climate change is slow, nonliving, and affects the environment.

Explain how women's right's were impacted by getting married in many states in the 1800's.

Answers

Answer:

In the early nineteenth century, married women in the US were legally subordinate to their husbands. Wives could not own their own property, keep their own wages, or enter into contracts. Beginning in 1839, states slowly began to enact Married Women’s Property Acts to allow women more control over their property and finances

Define photsynthesis? Of class 10 cbce

Answers

photosynthesis is the process of which producers,(plants) create there own food using sunlight, there food is in the form of sugar.

i need help with this please ​

Answers

Answer:

Corresponding mRNA Sequence: ALGUG GAACC_GCUG CLGA

Amino Acid Sequence: METHIONINE-LEUCINE-GLUTAMIC ACID-PROLINE

Do you think diabetes is something the average person should take steps to prevent ? Why or why not?

Answers

Answer:

Yes, and no. Unfortunately there is no cure or reversing the effect of type 1 diabetes. For type 2 diabetes which is obtained through various unhealthy patterns with enough treatment the effect of type 2 diabetes can be reversed.

Explanation:

PLS HELP SUPER HARD 100 POINTS Ian dissects a frog in science class and is interested in the heart. He studies a diagram of the human heart to compare them. He finds that a frog’s heart has two atria and a single ventricle. He returns to the human heart diagram and reads that it is considered a double loop system.

In the center of the diagram is a small round object, with a cutaway to see inside. Inside are two main sections separated by a thick line. The section on the left of the diagram is labeled right side of the heart. There are arrows pointing down and curving back up into a dark tube. The section on the right of the diagram is labeled left side of the heart. There are arrows pointing down from a light tube and then back up. On top of the diagram is a looped tube. One end of the tube is darker and labeled arteries. It is connected to the top of the right side of the heart section, and it has arrows pointing upward. At the top of the diagram the tube splits into smaller tubes labeled, capillaries. The smaller tubes join back into a single, lighter tube, which is labeled veins. This portion of the tube is connected to the top of the left side of the heart section. It has one arrow pointing down. At the bottom of the diagram is a second looped tube. One end of the tube, is lighter and labeled arteries. It is connected to the top of right side of the heart section, and it has arrows pointing downward. At the bottom of the diagram the tube splits into smaller tubes labeled, capillaries. The smaller tubes join back into a single, darker tube, which is labeled veins. This portion of the tube is connected to the top of the right side of the heart section. It has arrows pointing upward.

Why is the human heart called a double loop system?
A. There are two sections, or loops, that each have the same job in the circulatory system.
B. One loop passes through the heart on the way to the body, and the other loop passes through the body to the lungs.
C. One loop takes blood with oxygen to the lungs, and the other loop takes blood and wastes to the body.
D. One loop takes blood with wastes to the lungs, and the other loop takes blood with oxygen to the body.

Answers

Answer:

D. One loop takes blood with wastes to the lungs, and the other loop takes blood with oxygen to the body.

Explanation:

The first loop takes blood with wastes to the lungs so that it can be breathed out during exhalation - this could be carbon dioxide and water vapour. The other loop takes oxygenated blood to the body so that cells can use the oxygen and glucose for respiration to release energy.

Hope this helps!

Hallucinogens are: Group of answer choices always derived from plants. often derived from plants. rarely derived from plants. never derived from plants.

Answers

Answer:

often derived from plants

Explanation:

it can't be always as there are one that can be synthesized

it can't be rarely or never as most came from plants

What type of microscope would be most effective for studying a living cell?




i need it now

Answers

Answer:

B.) Scanning electron microscope

Explanation:

An electron microscope would be most effective because Internal structures of cells can be viewed in much greater detail due to the electron microscopes much greater clarity of the specimen being viewed than the light microscope. I hope this helps! ^-^

Describe how a nonpolar to polar R group substitution changes the structure and function of a protein.

Answers

A nonpolar to polar R group substitution changes the structure and function of a protein because polar structure can dissolved polar and non-polar can dissolve non-polar.

Why change of nonpolar to polar affect structure and function of protein?

The change of nonpolar to polar leads to change in structure and function of protein because the arrangements of atoms are different which leads to change of function as well.

So we can conclude that nonpolar to polar changes the structure and function of a protein because polar structure can dissolved polar and non-polar can dissolve non-polar.

Learn more about protein here: https://brainly.com/question/10058019

What term is defined as goods that consumers demand more of when their incomes rise?
normal goods
inferior goods
substitute goods
complementary goods

Answers

Answer:

The demand for normal goods rises with consumer income.

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Add the polynomials.(8x2-7x+7)+(8x3-5x) The times of all 15 year olds who run a certain race are approximately normally distributed with a given mean Mu = 18 sec and standard deviation Sigma = 1. 2 sec. What percentage of the runners have times less than 14. 4 sec? 0. 15% 0. 30% 0. 60% 2. 50%. . Duplex ultrasound for the evaluation of the deep and superficial venous system has largely replaced ________________ for the detection of DVT. Which contribution did classical Rome make to modern Western civilization?O large infrastructure projects to benefit the publicO international gathering to celebrate sporting achievementO direct election of the ruler by all residents of the empireO written constitution based on natural rightsHELP PLEASE!! Which values are outliers? 6. 1, 3. 9, 6. 4, 10. 6, 4. 4, 4. 5, 1. 6, 11. 2, 0. 8, 3. 9, 6. 5 Select Outlier or Not Outlier for each data point. Data Outlier Not Outlier 0. 8 Outlier 0. 8 Not Outlier 0. 8 1. 6 Outlier 1. 6 Not Outlier 1. 6 10. 6 Outlier 10. 6 Not Outlier 10. 6 11. 2 Outlier 11. 2 Not Outlier 11. 2. What do you notice about Demetrius and Helenas relationship, Act 2 scene 1 Which actor refused their oscar for best actor award in protest of negative portrayal of indians in hollywood movies and to show support for the protesters at wounded knee?. PLS HELP 40PTS Select the inequality that models the problem.The sum of two consecutive odd integers is at least 76. Find the least possible pair of integers.n + n + 2 76n + n + 2 > 76n + n + 1 > 76n + n + 1 76 Which phrase best completes the conversation?Msico 1: Tienes que afinar tu clarinete?Msico 2: S, pero _________________ maana.A. lo tocarB. lo comprarC. lo dirigirD. lo afinar 23. How did the French army react when Napoleon returned to France after his first exile? A. They executed him. B. They captured and imprisoned him C. They supported him D. They ignored him In which part of your body would you find the cruciate ligament? brainliest to best answer Which of the following is not part of self-respectA. Putting others downB. Feeling good about strengthsC. Showing dignityD. Treating others with respect help"Boys in the streetBeginning to playGirls like birdsFlying away"please give your best opinion and very best perception of this linewhat is your best opnion of this line? Select the steps in the marketing research approach. (Select all that apply) Multiple select question. define the problem obtain resources select target group develop findings take marketing actions What is the value of sec 65 (degrees)? I cannot understand how to input this into my calculator any help is much appreciated!! HELPPPPP PLEASE!!!What does the underlined word mean in the following sentence?Le puedo dejar un mensaje a Amalia?a messagean invitea thanksa messenger your teacher has asked you to prepare a presentation on the civil Rights movement many of Martin Luther King Jr.'s record speeches are held at the library of Congress for people to view online and some of these recorded speeches have been transcribed and published on the website you find a copy of one of these full text speeches specifically his famous one I have a dream is this full text transcription a primary or secondary source Please help!I need it like ASAP!!Thank you so much though 12 divided by 276 long division