Answer:
An action potential has several phases; hypopolarization, depolarization, overshoot, repolarization and hyperpolarization. ... The overshoot value of the cell potential opens voltage-gated potassium channels, which causes a large potassium efflux, decreasing the cell's electropositivity.
I hope it's helpful!
Answer:
an action potential is generated when a stimulus changes the membrane potential to the values of threshold potential. The threshold potential is usually around -50 to -55 mV. It is important to know that the action potential behaves upon the all-or-none law. This means that any subthreshold stimulus will cause nothing, while threshold and suprathreshold stimuli produce a full response of the excitable cell.
Is an action potential different depending on whether it’s caused by threshold or suprathreshold potential? The answer is no. The length and amplitude of an action potential are always the same. However, increasing the stimulus strength causes an increase in the frequency of an action potential. An action potential propagates along the nerve fiber without decreasing or weakening of amplitude and length. In addition, after one action potential is generated, neurons become refractory to stimuli for a certain period of time in which they cannot generate another action potential.
Hope this helps
Please amrk me as the brainliest
Thank you
Jacky leaves the office at 4:15 PM. If
she reaches her house at 4:55 PM
when her house is 25 km away from
her office, approximately, how fast did
she drive?
Given:
Jacky leaves the office at 4:15 PM and she reaches her house at 4:55 PM.
Distance between office and her house = 25 km
To find:
The driving speed of Jacky.
Solution:
The difference between 4:15 PM and 4:55 PM is 40 minutes.
60 minute = 1 hour
1 minute = [tex]\dfrac{1}{60}[/tex] hour
40 minute = [tex]\dfrac{40}{60}[/tex] hour
= [tex]\dfrac{2}{3}[/tex] hour
We know that,
[tex]Speed=\dfrac{Distance}{Time}[/tex]
[tex]Speed=\dfrac{25}{\dfrac{2}{3}}[/tex]
[tex]Speed=\dfrac{3\times 25}{2}[/tex]
[tex]Speed=\dfrac{75}{2}[/tex]
[tex]Speed=37.5[/tex]
Therefore, the driving speed of Jacky is 37.5 km per hour.
A tugboat tows ships out of a harbor. The tugboat starts pulling the ships when they are stopped at a dock.
Masses of ships
Name Mass (kg)
Eden 3,239
Skipjack 2,273
Standard 2,020
Thunderer 2,526
Viceroy 1,859
The tugboat tows with the same force no matter the size of the ship. Order the names of the ships to show the size of the acceleration each ship will have as it starts to move.
Answer:
In order of decreasing acceleration experienced by each ship, the names of the ships are as follows:
Viceroy
Standard
Skipjack
Thunderer
Eden
Explanation:
A force is a push or pull upon an object resulting from the object's interaction with another object.
According to Newton's second law of motion, the acceleration of an object is directly proportional to the resultant (or net) force and inversely proportional to the mass of the object and the acceleration occurs in the same direction as the force.
Mathematically, a = F/m
From the given question, the tugboat tows the ships with the same force no matter the size of the ship, therefore, force is constant. The acceleration each ship will have as it starts to move assuming force = 1 N, is given below:
Eden; mass = 3,239;
acceleration = 1/3239 = 3.09 * 10⁻⁴ m/s²
Skipjack 2,273
acceleration = 1/2273 = 4.40 * 10⁻⁴ m/s²
Standard 2,020
acceleration = 1/2020 = 4.95 * 10⁻⁴ m/s²
Thunderer 2,526
acceleration = 1/526 = 3.96 * 10⁻⁴ m/s²
Viceroy 1,859
acceleration = 1/1859 = 5.38 * 10⁻⁴ m/s²
Thus, in order of decreasing acceleration experienced by each ship, the names of the ships are as follows:
Viceroy
Standard
Skipjack
Thunderer
Eden
1. The definition of evolution is
a. The process of change over time in populations
b. The process of change over time in individual organisms
C. The process in which organisms share habitats
d. The process in which organisms reproduce
Answer:
B
Explanation:
Which statement describes how echolocation and ultrasound imaging are the same?
They both use the absorption of sound waves.
They both use the diffraction of sound waves.
They both use the reflection of sound waves.
They both use the transmission of sound waves.
Answer:
They both use the reflection of sound waves.
Explanation:
Many proteins are regulated by the binding of GTP or GDP. Which form is the active state of the protein
Answer:
GTP-bound form
Explanation:
Such a receptor may be associated with the GDP-regulated G-stimulant protein system. When the neurotransmitter binds to the receptor, the protein G-GDP complex is activated by separating its β subunit. When the ligand "sticks" to it, it releases GDP and allows GTP to bind. This form of the G protein that binds GTP, is the activated ("on") form of it. When it is "on" it releases signals into the cell. After a short period (seconds or less) the G protein hydrolyzes the GTP to GDP and itself "turns off".
• Who were the Grant's and what did they
1 1
Directions: Match the terms from the box with the correct phrases below.
distance
amount of charge
charging by induction
conductor
grounding
insulator
electric field
electric force
lightning
9._____a factor that the force between charges depends on
Answer:
the
Explanation:
answer is distance
hope this helps
Analyze the given diagram of the carbon cycle below.
Part 1: Which process does arrow F represent?
Part 2: Explain how matter is conserved during the process.
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.
Answer:
F means oxygen from plant goes into the atmosphere.
Explanation:
2. matter is conserved in this process because plants take carbon dioxide from the atmosphere for photosynthesis then produces oxygen into the atmosphere, animals then feed on plants and later the animal's faecal matter is released into the soil and even when animals die, microorganisms in the soil break I down into absorbable form for plants use. which makes matter conserved.
3. mater is in a circular state from atmosphere to plants to animals to soil then absorbed by plants to restart the process again.
Answer:
Other person is 100 percent right give them the credit I just wanted to make it clear
Explanation:
Where does the second, major part of cellular respiration take place?
Check all that are true.
in the cytoplasm of heterotroph cells
in the chloroplasts of heterotroph cells
in the mitochondria of autotroph cells
in the mitochondria of heterotroph cells
in the chloroplasts of autotroph cells
Explanation:
The answer is mitochondria of heterotroph cells..In human or animal cells...
Eddie stated the picture shows potential energy being transformed to kinetic energy. Val stated that it shows chemical energy being transformed to mechanical energy. Which best explains who is correct?
Answer:
Val stated that it shows chemical energy being transformed to mechanical energy. Which best explains who is correct? Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.
Answer:
(100%) The answer for the whole quiz is;
A, A, A, C, C, D, A, C, B, C
Explanation:
I've done the quiz. But the answer for this one is just C.
"Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy. "
I will MARK AS BRAINLIEST.
Answer:
Q-8=4
Q-9=1
Q-10=3
Q-11=3
Q-12=1
Explanation:
Prompt: You are a carbon atom and you have just been exhaled out of a deer. Describethe journey that you have been on or describe your new adventures. You should include
at least 10 things that you have learned in Unit 4 (cellular respiration, photosynthesis,
carbon cycle, etc).
Answer:
respiration" (and any subsequent words) was ignored because we limit queries to 32 words.
10
How much force is needed to accelerate a 5 kg object at a rate of 4m/w?
F
0.28 N
O.
F
G
1.28 N
Η ON
G
J
20 N
0.
о
H
0
J
CLEAR ALL
Answer:
Explanation:How many grams are in 5.4 moles of iron (III) sulfate, Fe2(SO4)3?⇔⇔∉↑·ПНПёПсжЫЫЫЁ
Explanation:
Explanation:How many grams are in 5.4 moles of iron (III) sulfate, Fe2(SO4)3?⇔⇔∉↑·ПНПёПсжЫЫЫЁ
Why does rifting might matter to people that aren't geologists? pls help me ASAP this is due in half a hour
Answer:
Rifting is defined as the splitting apart of a single tectonic plate into two or more tectonic plates separated by divergent plate boundaries. The rifting of a continental tectonic plate creates normal fault valleys, small tilted block mountains, and volcanism.
Explanation:
It causes valleys and stuff so the earth would rip kind of, but for geologist it is good beacsue they can explore that stuff, and find things they were looking for but got burried underneath so many things like rock, and dirt.
The rock cycle includes:
A. Metamorphosis of rock.
B. The process by which rocks are created and broken down.
C. Both A and B are correct
Answer:
C. both a and b are correct
Explanation:
#carry on learning
The elbow is __ to the index finger.
The stomach is __ to the neck.
The brain is __ to the spinal cord.
The lungs are __ to the heart.
The shoulder is __ to the esophagus.
The toes are __ to the ankles.
The trachea is __ to the clavicle (collarbone).
The spine is __ to the liver.
Answer:
what is the question ?
Explanation:
What effect does distance have on the force of gravity ?
a) increasing the distance between two objects increases the gravitational force
b) decreasing the distance between two objects decreases the gravitational force
c) increasing the distance between two objects decreases the gravitational force
d) distance is not a factor in determining the force of gravity
Where are haploid cells
found?
Answer:
I'm pretty sure it's 2n correct me if I'm wrong
Explanation:
I'm not to smart with this kind of stuff.
Answer:
they are found in the reproductive organs
it is an ecosystem that normally functions without human tending
Explain the difference between renewable and nonrenewable resources and give an example of each.
Answer:
Nonrenewable Resources take longer to be replenished, reneweable resources are easily replenished and easily accessible.
Explanation:
If something is Nonrenewable; for example fossil fuels like coal, oil, and natural gas, then that means that the organic matter is limited and not going to grow or be created easily on Earth.
Renewable Resources are usually classified into five categories; Hydro, Solar, Wind, Biomass, and Geothermal. All of these resources are easily accesible and can be used as a natural energy source.
Hope this helped :)
Answer:
Nonrenewable Resources take longer to be replenished, reneweable resources are easily replenished and easily accessible.
Explanation:
PLEASE HELP ME:
Drought is a weather condition that may limit the amount of water resources available to an ecosystem. Which of the following may be one result of drought?
A. Fish populations may decline due to lower river levels.
B. Birds may not build nests due to temperature change.
C. Flowering plants may produce more seeds due to lack of water.
D. Predator populations may increase due to increased prey populations.
Answer:
A
Explanation:
Droughts generally lower the amount of water in an ecosystem. This also applies to rivers and other such bodies of water, potentially harming or reducing the number of fish.
What happens to the position of the stars from evening to the next morning?
Answer: They move during that time because of the fact that the earth move around one its axis around the sun.
Explanation:
The Pew Oceans Commission suggests four calls to action. What are they?
Answer:
Pew Welcomes Global Ocean Commission's Recommendations for High Seas Conservation. ... Convention on the Law of the Sea to restore ocean productivity; guard against irresponsible, inefficient, and wasteful exploitation; and allow for the creation of high seas marine protected areas.
Pew's ocean work includes efforts to establish large marine reserves, to end illegal fishing, to protect key species like penguins, sharks, tuna, and forage fish, and to establish policies that protect, maintain, and restore the health of marine ecosystems.
What does Commission on Ocean Policy do?Pew's ocean work includes efforts to establish large marine reserves, to end illegal fishing, to protect key species like penguins, sharks, tuna, and forage fish, and to establish policies that protect, maintain, and restore the health of marine ecosystems.Ocean Policy Commission of the United States The Oceans Act of 2000 (P.L. 106-256) established the United States Commission on Ocean Policy. The commission, appointed by the President, was tasked with producing findings and making recommendations to the President and Congress for a coordinated and comprehensive national ocean policy.To learn more about : Ocean Policy Commission
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Which of the following types of data is illustrated by the examples that follow: Group of answer choices
a. Mad cow disease is diagnosed in a cow and the entire herd is subsequently slaughtered Single case or small number of cases.
b. Death certificates are used as the basis for measuring the number of deaths and the probability of death among infants
c. A sample of adolescents are questioned about their cigarette smoking behavior
1. Statistics â vital statistics and reportable diseases
2. Single case or small number of cases
3. Sentinel surveillance
4. Survey data
5. Syndromic surveillance
Answer:
A)Single case or small number of cases
B)Vital Statistics
C)Survey data
Explanation:
Biological data can be regarded as information/compound that is gotten from sources such as living organisms as well as their products. It is usually a complex data when compare with some other form of data that exist.
Data collection is a systematic way of gathering data from various sources such as observation, questionare and the rest for particular purpose.
Vital statistics can be regarded as accumulated data that is been gathered base on death, births, as well as migration.
Survey data can be regarded as a resultant data which is gotten from sample of correspondents that participated in a particular survey
Which of the following best explains the potential health problems associated with endocrine disruptors?
a. Endocrine disruptors mimic hormones that regulate critical biological processes.
b. Endocrine disruptors encompass a wide array of toxic pesticides.
Endocrine disruptors do not biodegrade, remaining toxic years after their release.
d. There are no major health problems associated with exposure to endocrine disruptors
Answer:
A. Endocrine disruptors mimic hormones that regulate critical biological processes.
Endocrine disruptors mimic(imitates) hormones that regulate critical biological processes and creates heath problems.
What are endocrine disruptors?Endocrine disruptors are also referred as hormonally active agents, endocrine disrupting chemicals, or endocrine disrupting compounds.They are chemicals that can interfere with endocrine systems. These can cause tumors, birth defects, etc.What are hormones?Hormones are chemical messenger.They are directly poured into bloodstream by endocrine glands.Hence, the correct option is a. Endocrine disruptors mimic hormones that regulate critical biological processes.
To know more about hormones here
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help me find out the answer.
Answer:
Genetic Variation
Competition
over production
Adaptation
how many chromosomes are found in a human somatic cell
Answer:
there are 46 chromosomes found
how is your health connected to your genetics?
Answer:
Well There's a bunch of Conditions or diseases connected to genes, Like for example Heart disease or diabetes are caused by multiple genes in combination with lifestyle/Environmental factors. Hope this helps!
carbohydrates are a unit to measure what?
Which energy conversion occurs in the cells of algae, such as the kelp shown
in the photograph?
A. Potential energy → Kinetic energy
O B. Light energy - Chemical energy
C. Chemical energy → Light energy
D. Potential energy → Nuclear energy
Answer: B. Light energy - Chemical energy
Explanation:
Algae is a food producer because it uses the process of photosynthesis to synthesize the organic glucose from the inorganic molecules of carbon dioxide and water.
It does this in the presence of sunlight which gives energy to the reaction by being converted from light energy to chemical energy in the cells of the algae.
Answer:
b
Explanation: