A neuron depolarizes when the Na+ channels open, and the ion flows into the cell. If you open an Na+ channel in a typical neuron, Na+ will enter the cell, and the cell will depolarize. Option A.
When does a neuron depolarize?
When the electrical stimulus is applied to the neuron or when a neurotransmitter joins its receptor, ion channels activate.
Ion channel openning produces depolarization by letting sodium get into the cell.
Depolarization, due to the increase of possitive charges, propagates to inactivated regions adjacent to the membrane opening more sodium channels.
Ions traffic will consist of the pass of sodium to the interior of the cell and potassium to the exterior.
K+ follows a concentration gradient,Na+ follows an electrochemical gradient.The interchange results in an increase of positive charges in the interior of the cell. This depolarization activates an action potential that extends to the rest of the membrane.
So, when openning a Na+ channel in a typical neuron, Na+ will enter the cell, and the cell will depolarize. Option A is correct.
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in human, the allele for hemophilia, h, is recessive. Which phenotype is displayed in an individual with the genotype XhY
Hemophilia is a genetic disorder caused by the recessive allele of a diallelic X-linked gene. Hemophilic men carry the recessive allele in their X chromosome. The man XhY is hemophilic.
What is hemophilia?Hemophilia is a hemorrhagic affection that occurs because the blood does not coagulate as it should in normal conditions.
Hemophilia is a genetic X-linked disorder caused by the recessive form of a diallelic gene.
The recessive allele h codes for hemophilia, The dominant allele is H and codes for the normal phenotype.In the case of women, this gene expresses complete dominance, meaning that an heterozygous woman is normal but carrier.
Any man who gets the X chromosome carrying the recessive allele expresses the affection.
Let us represent the dominant allele H with the symbol + and the recessive allele h with the symbol -.
Genotypes Phenotypes
X⁺X⁺ Normal woman
X⁺X⁻ Normal and carrier woman
X⁻X⁻ Hemophilic woman
X⁺Y Normal man
X⁻Y Hemophilic man
In the exposed exposed example, the individual XhY is a man that expresses hemophilia, since he has the X chromosome carrying the recessive allele.
The phenotype displayed in the individual whose genotype is XhY is hemophilia.
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Choose the answer that is most descriptive of the Milky Way Galaxy.
A- Planets, stars, comets, asteroids, planetoids, moons.
B- 200-400 billion stars, 100,000 light-years diameter, spiral arms.
C- Black holes, quasars, gamma rays, galaxy clusters.
D- Giant nebulas, star nurseries, gas clouds, binary stars.
Answer:
I think the answer's A
pls like if it's correct/ helps
what is your favorite spongebob character? trying to get rid of points.
Answer:
sandy
Explanation:
This image shows carbon dioxide moving from
They geosphere to the atmosphere
The hydrosphere to the geosphere
The biosphere to the atmosphere
The atmosphere to the hydrosphere
Answer:
The correct answer of the question is A. They geosphere to the atmosphere
Explanation:
hope it will help you
The correct option for the image showing carbon dioxide moving is the biosphere to the atmosphere. Therefore, the correct option is C.
Respiration and combustion are the main processes by which carbon dioxide [tex]\rm (CO_2)[/tex] is transferred from the biosphere to the atmosphere. In the biosphere, which is made up of all living things and organic matter on Earth, plants and animals release carbon dioxide as a result of consuming oxygen [tex]\rm (O_2)[/tex].
Additionally, human activities such as the combustion of fossil fuels for energy also contribute significantly to atmospheric emissions of carbon dioxide. This human-caused process is a major contributor to the increase in atmospheric carbon dioxide levels, which is a major contributor to climate change.
Therefore, the correct option is C.
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One person in the film stated the following with your basil or not as a matter of whether it’s cause effect of the chance of getting caught in the penalty or less and it cost to comply people just think of it as being a business decision in other words criminal fines or just another cost of doing business my TV amor factored form of punishment that would motivate corporations to follow the law
tough question
Explanation:
Gross domestic product (GDP) is ________.
What is responsible for production of a blood moon?
absorption of blue light by the Earth's atmosphere
absorption of red light by the Moon's atmosphere
absorption of blue light by the Moon's atmosphere
absorption of red light by the Earth's atmosphere
Answer:
absorption of blue light by the Earth atmosphere
green plants help to balance the environment why
Answer:
In my opinion ans :;because they release oxygen to atmosphere ,they absorb carbondioxide and regulate water cycle
Answer:
green plants help to balance the environment because it help to maintain the amount of oxygen and carbon dioxide in air
— a type of blood test that measures the antigen compatibility of the organ being donated to that of the tissues of the recipient. — medicine that makes the immune system less effective by disrupting the replication process of lymphocytes that produce antibodies.
Blood typing
It is the first blood test that will determine if your blood is a compatible match with the potential donor's blood. This test measures blood antibodies that react with different blood groups.
Blood typing a type of blood test that measures the antigen compatibility of the organ being donated to that of the tissues of the recipient.
Immunosuppressants medicine makes the immune system less effective by disrupting the replication process of lymphocytes that produce antibodies.
It is possible to determine blood type by blood typing. Blood transfusions and blood donations can be made without risk if one has their blood typed or knows the blood type. Additionally, it checks to determine if your red blood cells have something called Rh factor on their surface. this determines the blood type.Antigens are molecules that support your body's ability to distinguish between its own cells and potentially harmful alien cells. If your body thinks a cell is foreign, it will set out to destroy it.Blood groups are divided into one of four types by the ABO blood typing system:
Type AType BType ABType OImmunosuppressants are medications that control the immune system.
The immune system of the body assists in warding off illnesses brought on by infections. But occasionally, healthy cells and tissues are inadvertently attacked by the immune system. Immunosuppressive medications can slow down or end this response.learn more about Blood typing here: https://brainly.com/question/20672267
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Pepto Bismol and Milk of Magnesia are products that people can take when they have an upset stomach, usually caused by excess stomach acids. When swallowed, what do you think these products are designed to do?
These products are designed to coat the gastric tissues and protect it from the acidity of the stomach or gastric secretions.
What are Pepto Bismol and Milk of Magnesia?Pepto Bismol is made up of mainly Bismuth subsalicylate which has the ability to coat the mucosal surface of the gastric tissues.
Milk of Magnesia contains antacid that helps reduce the acidity of the stomach.
Therefore Pepto Bismol and Milk of Magnesia can be taken when people have an upset stomach.
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To assess these claims, which question might Sendorsements by celebrities
subjective data
similar results in multiple tests of the claim
data based on opinionsharon ask?
Similar results in multiple tests of the claim is an example of a scientific claim.
What is Scientific claim?This is defined as statements which are made based on experimental results in the broad field of science.
The results gotten from the experiment is usually compared with that of others to check for similarity so as to ascertain its validity. This is therefore the reason why scientific claim comprises of different tests and observations.
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A scientist uses material in her lab to cut a DNA sample into fragments.What process is the scientist using
Answer:
The digestion of DNA by restriction emzymes.
Explanation:
Whats the correct answer answer asap for brainlist
How does a city compare to a field or forest when it comes to rainwater?
A. A field or forest will have lower porosity but high infiltration of rainwater into the groundwater.
B. A city will have a lower porosity and a lower infiltration of rainwater into groundwater.
C. A city will have a much lower percentage of runoff.
D. A city will absorb more rainwater than a field or forest.
A field or forest will have lower porosity but high infiltration of rainwater into the groundwater
Explanation:
I believe the answer is B. because most rain goes to a sewer system, in city.
during a heavy rain.
FOREST= dirt, roots, trees filter h2o= water plants, crops, absorbs & most rain with soil.,= natural filtration.
The figure below shows the incidence of Bruton's syndrome in the three generations of a family. Bruton syndrome is a rare genetic disorder that is characterized by the mutation in a o gene that prevents the development of certain immune cells. It is an X-linked recessive trait. Determine the genotypes of the individuals in the chart. Let [tex]X^{B}[/tex] represent the dominant Bruton allele and [tex]X^{b}[/tex] represent the recessive Bruton allele.
The genotype of the individuals is found below.
GenotypesThe disease is X-linked and recessive.
Males are XY while females are XX. Males only need one recessive allele to become affected. Thus:
affected males will be [tex]X^bY[/tex] while unaffected males will be [tex]X^BY[/tex]affected females will be [tex]X^bX^b[/tex], unaffected females will be [tex]X^BX^b[/tex] or [tex]X^BX^B[/tex]Following these rules, the genotypes of individuals in the figure will be as follows:
[tex]X^BY[/tex] 2. [tex]X^bX^b[/tex] 3. [tex]X^BY[/tex] 4. [tex]X^BX^b[/tex] or [tex]X^BX^B[/tex]5. [tex]X^bY[/tex] 6. [tex]X^bY[/tex] 7. [tex]X^bX^b[/tex] 8. [tex]X^BY[/tex]
9. [tex]X^BX^b[/tex] or [tex]X^BX^B[/tex] 10. [tex]X^bY[/tex] 11. [tex]X^bY[/tex] 12. [tex]X^bY[/tex]
13. [tex]X^bX^b[/tex]
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Chemically, what is the difference between a “whole-grain” carbohydrate and a simple
carbohydrate?
Answer:
the difference between them is the
chemical structure
Why is it important to consume foods that contain cellulose when most animals cannot digest cellulose?
Cellulose acts as a hormone disruptor in the endocrine system.
Certain animals can partially digest cellulose and use it as energy.
Cellulose acts as dietary fiber and helps the digestive system function properly.
Cellulose can be incorporated into the cell walls of certain animal cells.
Answer: Cellulose acts as dietary fiber and helps the digestive system function properly.
Explanation: Cellulose is an insoluble fiber and does not dissolve in water. When consumed, insoluble fibers can help push food through the digestive system and support regular bowel movements.
Which one of the following is an example of a prokaryote?
A.
HIV virus
B.
lactobacillus bacteria
C.
amoeba
Answer: Option B
See,
HIV Virus is not the answer because viruses are neither prokaryotes nor eukaryotes.
So, option A. is not an option.
Lactobacillus bacteria is a prokaryote (Your answer)
Amoeba is an eukaryote.
Hope it helps!!
Lactobacillus bacteria is an example of a prokaryote. Therefore, option (B) is correct.
Prokaryotic, unicellular Lactobacillus bacteria lack nuclei and membrane-encased organelles. The cytoplasm of prokaryotes like lactobacillus has a single circular DNA molecule. The nucleoid grows. Unlike them, eukaryotic organisms contain nuclei and membrane-bound organelles.
Lactobacillus bacteria preserve gut health. They improve digestion, balance gut flora, and gut health. By fermenting lactose into lactic acid, several lactobacillus species preserve and sour yoghurt.
Non-prokaryotes HIV and amoeba. Acellular retrovirus HIV is neither prokaryotic nor eukaryotic. Lactobacillus is simpler than amoeba, a eukaryotic organism with a nucleus and membrane-bound organelles.
Lactobacillus bacteria aid digestion and fermentation. HIV is a virus, and amoeba is a complex eukaryotic organism. Therefore, option (B) is correct.
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look at the picture
Weather predictions are sometimes incorrect because local variations in weather are too small for weather instruments to replicate.
What are weather predictions?Weather predictions are usually based on data collected over the years. The data are modeled such that future predictions can be made.
However, there are small local variations in weather that weather instruments fail to replicate. Thus, predictions based on the model created can sometimes be wrong.
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6. Match each one of the types of flow with its example:
1. Consumer spending
Y
Y
2. Goods and services
3. Factors of production
4. Cost of production
a. Rent paid for store space
b. Teenager working for clothes store
c. Teenager buying a cheeseburger
d. Pair of jeans
We combine each of the flow types with their example:
1. Consumer spending - c. Teenager buying a cheeseburger
2. Goods and Services - d. Pair of pants
3. Factors of production - b. Teenager working for clothing store
4. Production cost- A. Rent paid for the store space
What are factors of production and what are they used for?Factors of production are the goods needed to produce a given final product. They are the elements that make production possible. Classically, economic theory considers three factors of production:
capital (usually represented by K)labor (L) and natural resources or land (T).With this information, we can conclude that Material goods Are those that, as the name implies, are material and tangible.
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(GIVING BRANLYEST) Question 6(Multiple Choice Worth 2 points) (10.03 MC) How are humidity and precipitation related? O When humidity is low, the chance of precipitation is high. O When humidity is high, the chance of precipitation is high. O When humidity is high, the chance of precipitation is low. O Changes in humidity do not cause precipitation. pls anser correctly or i report you
Answer:
b. when humidity is high, the chance of precipitation is high.
Explanation:
hope this helps! :)
What do you think is the most important discovery that Dr. Jane Goodall was able to make about chimpanzees during the early years of her research and why? Explain (3) specific differences OR (3) specific similarities between chimpanzee and human behavior. Do you think humans have a moral obligation to preserve the habitat of the chimpanzee. Why? OR Why not?
Jane Goodall is an expert on chimpanzees that live in the wild and made most significant discovery about chimpanzees.
Jane Goodall is an expert on chimpanzees that live in the wild. The most significant discovery she made about chimpanzees during the early years of her research is that chimpanzees and humans have similar traits social behavior, eating habits, and the ability to make tools. This discovery fundamentally changed how we think about the closest living relatives of humans.Because chimpanzees and humans have so many moral similarities, I firmly believe that it is our moral responsibility to maintain the chimpanzees' ecosystem. In addition to being informative for us, I think they should be permitted to continue living in their existing habitat. Given our resemblance to humans, we would seek assistance if our environment were in danger.So we can conclude that chimpanzees are very similar to human beings by the above points in terms of behavior.
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South America and Africa have similar mountain ranges that would line up if the continents were pieced together. This is evidence that:
A. the two continents were once a single landmass.
B. tectonic activity creates similar structures on every continent.
C. volcanic activity is responsible for mountains.
D. both continents were once under water.
Here is the pic of the question thanks !
Contracting biceps and Relaxing triceps. Thus, option "B" is correct.
How are muscles control the elbow?Muscles controlling the elbow. The muscles which control the movement of the elbow, are the triceps and the biceps.
The bicep contracts or shortens, pulling the lower arm up, and causing the elbow to bend. At this time the tricep relaxes or lengthens.
Thus, option "B" is correct.
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Question 13 of 20:
Select the best answer for the question.
13. Which of the following is formed when a group of tissues works together to perform a common function?
A. Organ system
B. Organ
C. Body
D. Brain
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the following is formed when a group of tissues works together to perform a common function is called an Organ.
What is the definition of organs?The word organ derives from the Latin term organum (instrument, tool). These structures are objects of physiology, the area of biology that studies how organisms, systems, organs, cells and molecules perform chemical and physical functions in the body.
In this case, is correct to say that an organ is formed when a group of tissues works together to perform a common function.
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How have federal and state authorities attempted to eradicate Burmese Pythons from the Everglades?
Answer:
As evidence of the python’s damaging spread became clearer, state and federal authorities began working together in an attempt to eradicate the python population. In 2010, the state made python pet ownership illegal.
Explanation:
A group of researchers was investigating the changes in the population of land animals in India over a period of 30 years. They noted a decrease in the population of land animals over time. Which of the following factor(s) is/are most likely to have caused a decrease in the population of these animals?
A: deforestation
B: increased sunlight
C: introduction of other animals
Answer:
A
Explanation:
mainly because the more people that build homes in the areas where the aniamls lives the more trees gets cut down leaving the animals with no homes so the leave.
The correct answer is (A). Deforestation.
What do you mean by deforestation?Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests.
Moreover, deforestation is the purposeful clearing of forested land. Throughout history and into modern times, forests have been razed to make space for agriculture and animal grazing, and to obtain wood for fuel, manufacturing, and construction. Deforestation has greatly altered landscapes around the world.
Hence, the loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for Indigenous people.
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Need immediately. The answers on picture may or may be wrong
I will leave your question unanswered. Thanks for the points I stole from you!
The use of DNA in the process of classifying organisms is known as.
A. DNA forensic analysis.
B. molecular systematics.
C. DNA D. electrophoresis. molecular biochemical analysis.