Which factor plays a central role in determining which of the brain's synapses will be eliminated and which will be maintained?

Answers

Answer 1

Answer:

The answer is "frequency with which they are activated".

Explanation:

Frequency refers to the number of consecutive repetitive events per unit time. It is measured in hertz (Hz), equivalent to a single event per second. The time is the number of one cycle in a recurrent event, and so the duration is the same for the frequency, hence the frequency at which they are triggered is a key determinant of the brain's connections to be eliminated and maintained.


Related Questions

easy biology question below first correct answer gets brainliest

Answers

Answer:

Explanation:

Following the rule of "like dissolves like", the hydrophilic head of the phospholipid molecule dissolves readily in water. The long fatty acid chains of a phospholipid are nonpolar, and thus avoid water because of their insolubility

Quốc gia Đong Nam A nào có sản lượng lúa gạo lớn nhât

Answers

Answer:

Việt Nam

Việt Nam has the greatest rice production of any southeast Asian country.

Well this isn’t biology this is earth science but it doesn’t have the option.... 1. What geologic processes must have occurred for fossil ammonites (relatives to the nautilus that dominated oceans hundreds of years ago) to now be found in rocks at the highest mountains on Earth??

2. What would our planet look like if it contained no radioactive isotopes within it? What would it look like if radioactivity were producing twice as much heat within Earth’s interior?

Answers

The answers are that the geological process responsible for fossils being found on high mountains today is called Orogeny Tectonics. With no radioactive isotopes, the Earth's geography would be vastly different and void of life. If radioactivity produced twice as much heat the earth would become unstable.

The discovery of fossil ammonites within rocks at the highest mountains on Earth is due to orogenic plate tectonics. Plate tectonics is the name we use to describe a process in which pieces of the earth's crust move and often slam into each other, causing one of these to pile onto the other.

This can lead to the formation of mountains and mountain ranges. This process helps to explain why fossils of ammonites known to dwell in the ocean can be found in mountains.

Radioactive isotopes, or better yet, the decaying of radioactive isotopes, are responsible for generating most of the Earth's internal heat. The internal heat of the earth is the driving force of plate tectonics and without it, much of the geological activities responsible for the earth's current geography would not have happened.

Mountain ranges would not have formedPlate tectonics would not have caused the formation of the continents we know todayThe earth would lack a magnetic field to defend against ionizing radiation from the sunLife would likely not have evolved.

Radioactive isotopes were vital in allowing for the conditions of the earth at the time that life evolved, and the heat they produce allows the earth to have a molten core and thus generate a magnetic field for protection.

Now, if the heat produced by radioactive isotopes were to double, the  Earth's internal temperature would nearly double. Since this heat is the driving force for plate tectonics, we can expect a sharp increase in the number of earthquakes and volcanic eruptions. These can, in turn, cause tsunamis and changes to the earth's global temperature. Mountains would form continuously and continents may break apart. This instability would make life on earth's surface improbable.

Therefore, the geological process responsible for fossils being found on high mountains today is called Orogeny Tectonics. Without radioactive isotopes, the Earth's geography would be vastly different and void of life. Radioactivity producing twice as much heat would make the earth very unstable.

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The combination of chemical reactions that make up an organisms help to organize raw materials into living matter

Answers

Answer:

Metabolism

Explanation:

What is the structure labeled E in the diagram below?

Answers

Answer:

The structure labeled E in the diagram is (B) Cytoplasm

Answer:

Cytoplasm(b)

Explanation:

Which capacity makes living beings to adjust in hard environment

Answers

The biological referred to as Adaptation makes living beings to adjust in exhausting atmosphere.

Adaptation, in biology, is that the method by that species measure suitable their several atmosphere, thanks to Natural Selection’s method ensuing into patrimonial variation over many generations.

What is Adaptation?

According to Evolution, Adaptation method is that the process underneath that organisms suits the present atmosphere in conjunction with the modifications thanks to change in atmosphere.

Adaptation is connected with the idea of evolution that was propounded by Darwin and Wallace.

According to Wallace, the evolution of organisms was supported 2 factors: Adaptation and dynamic atmosphere.

To develop the idea of evolution by survival, Wallace and Darwin targeted not solely on straightforward adaptation however additionally proceeded more to clarify however organisms adapt and evolve.

Biologically Adaptation will be in 3 forms:

- Psychological kind

- generative kind

- sequence Frequency

Psychological form- associate degree animal or plant adapt by adjusting consistent with its immediate atmosphere.

Example- modification in temperature or metabolism with a rise in altitude

Reproductive form- method of adaptation thanks to genetic variations among people that is customized i.e. having larger success in—a specific environmental context.

Gene frequency- the method of adaptation happens through associate degree ultimate modification within the sequence frequency relative to blessings bestowed by a selected characteristic, like the coloration of wings within the moths.

Organisms will adapt to associate degree atmosphere in several ways in which. they will adapt biologically, which means they alter body functions

Example- individuals living at high altitudes have evolved changes in their body chemistry and may survive at high altitudes for a brief time as a result of their bodies raise their levels of hemoprotein.

They can additionally exhibit activity adaptation.

Example of activity adaptation is however emperor penguins in Antarctica foregather to share their heat within the middle of winter.

What is theory of Natural Selection?

The theory of survival was given by Darwin in 1859.

Natural selection is that the method through that populations of living organisms adapt and alter.

Individuals in an exceedingly population square measure naturally variable, which means that they're all completely different in some ways in which.

This variation means some people have traits higher suited to the atmosphere than others. people with adaptive traits—traits that provide them some advantage—are a lot of seemingly to survive and reproduce.

These people then pass the adaptive traits on to their offspring. Over time, these advantageous traits become a lot of common within the population.

Through this method of survival, favorable traits square measure transmitted through generations.

Natural selection will cause phylogeny, wherever one species offers rise to a replacement and clearly completely different species. it's one among the processes that drives evolution and helps to clarify the range of life on Earth.

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how do you think earths large temperature gradient affects the speed of its convection currents how would this speed change if earths core was cooler

Answers

A higher temperature gradient causes faster heat transfer, and thus faster convection currents. If the core were cooler, the temperature gradient would be lower, so the convection currents would likely slow down.

Sustainable practices can help us protect the environment while still meeting our basic needs. O True O False​

Answers

Answer:

True

Explanation:

definition of sustainable practices is "practices we develop to protect the environment.

The statement "Sustainable practices can help us protect the environment while still meeting our basic needs" is definitely true.

What is the Environment?

Anything which is present in the surrounding of a living organism is called its environment. The term "environment" was first given by Carlyle.

Sustainable practices are those measures that should be taken in order to protect our environment from harmful and abnormal behaviors, activities, compounds, etc. Sustainability is the approach that helps in the protection of the environment with the present needs without affecting the future.

It includes all those processes that are employed in order to maintain the qualities that are valued in the physical environment. For example, boycott products that endanger wildlife, pay attention to labels, be water-wise, drive less, drive green, green your home, etc.

Therefore, the statement "Sustainable practices can help us protect the environment while still meeting our basic needs" is definitely true.

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Along the inferior surface of the liver are several structures that collectively resemble the letter H. The ______ and the round ligament of the liver form the vertical superior parts of the H; the inferior vena cava and the ligamentum ______ form the vertical inferior parts.

Answers

Along the inferior surface of the liver are several structures that collectively resemble the letter H. The gallbladder and the round ligament of the liver form the vertical superior parts of the H; the inferior vena cava and the ligamentum venosum form the vertical inferior parts.

The gallbladder is a pear-shaped organ localized on the right side of the body, directly under the liver. This organ functions to store a digestive fluid called bile until it's needed for digestion.

The round ligament of the liver (also called ligamentum teres hepatis) is a remnant of the fetal umbilical vein. This ligament is part of the coronary ligament of the liver.

The ligamentum venosum (also called the hepatogastric ligament) is a deep cleft on the posterior surface of the liver. It is a fetal remnant ligament attached to the left branch of the portal vein within the porta hepatis.

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Suppose your body filtered 340 g of chloride ions out of the bloodstream and then returned
332 g to the bloodstream.
How much of the chloride ions would there be in the urine?
b. Determine the percent of chloride ions returned to the bloodstream.

Answers

Answer:

A chloride test measures the level of chloride in your blood or urine. Chloride is one of the most important electrolytes in the blood. It helps keep the amount of fluid inside and outside of your cells in balance. It also helps maintain proper blood volume, blood pressure, and pH of your body fluids.

Explanation:

May be it will help

y’all i need help please help

Answers

Answer: It is (D) Skin

Explanation: Skin can absorb materials, it also protects our body, it also regulates our body temp.

Skin does all of those things

Why do animal cells not need central vacuoles?
A: Animal cells are round.
B:Animal cells have cell walls.
C:Animals do not produce their own food
D:bodies have skeletons.

Answers

Answer:

B:animal cells have cell walls

The broad, spread-out part of the leaf is called the ________ or lamina and its edge is called

the_________. The tip of the leaf is called the _________. Leaves of some plants have a stalk called

a ________. The portion of the leaf attached to the stem is called the ___________. Small leaf-like

structures may be present near the leaf-base. These are called ___________​

Answers

Answer:

him follow me please

Explanation:

go BBC DHL PC

DNA Polymerase is responsible for:

Answers

The process of dna replication

define acceleration. Write its formula and SI unit . pls answer my question!​

Answers

Answer:

the rate of change of velocity with time is called acceleration.

it can also be defined as the increase in velocity per second.

The S.I. unit of acceleration is meter per second square or ms−2.

formula; a = Δv / Δt

where a is acceleration,

Δv is the change in velocity,

and Δt is the amount of time it took for that change to occur.

When a pathogen is growing and multiplying within or on a host (which may or may not result in overt symptoms) this is known as a(n) ______. Multiple choice question. infection latent infection infectious disease opportunistic infection

Answers

Answer:

Infection would be the answer for the blank

How do membrane proteins contribute to the membrane potential?

Answers

Answer:

The proton pump results....

Explanation:

double checked my notes

Aquaporins result in a combination of positive charges intracellularly and negative charges extracellularly

What are Aquaporins?

Aquaporin is a group of membrane proteins found in cell membranes and selectively permit water to pass into and out of the cell. Also known as water channels, aquaporins are integral membrane pore proteins. Aquaporins are found in plants, bacteria and animals. They are observed in the vacuolar membranes and plasma membranes. The basic function of most aquaporin is to transport water across cell membranes in response to osmotic gradients created by active solute transport. Aquaporins enable passive transport which means they allow the movement of molecules across a cell without using energy.

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Put the main steps of genetic engineering in the correct order.
1. Replicate the new organism
II. Isolate the genes from the specialist cell
III. Select the desired trait
IV. Insert the genes into the target organism
A. I, II, IV, III
B. II, I, IV, III
C. III, II, IV,

Answers

Answer:c

Explanation: hope this helps

The correct order is,

I. Replicate the new organism.

II. Isolate the genes from the specialist cell.

III. Select the desired trait.

IV. Insert the genes into the target organism.

What is genetic engineering?

Genetic engineering (also named genetic modification) exists as a system that operates laboratory-based technologies to change the DNA makeup of an organism. This may influence changing a single base pair (A-T or C-G), deleting a region of DNA, or adding a unique element of DNA.

Genetic engineers change, splice, eliminate, and rearrange genes to change an organism or classes of organisms. Genetic engineering, also called genetic modification or genetic manipulation exists in the modification and manipulation of an organism's genes operating technology.

Genetic engineering stands performed in three fundamental steps. These exist,

(1) The isolation of DNA components from a donor organism.

(2) The insertion of an isolated donor DNA fragment into a vector genome.

(3) The effect of a recombinant vector in a suitable host.

Hence, The accurate order is,

I. Replicate the new organism.

II. Isolate the genes from the specialist cell.

III. Select the desired trait.

IV. Insert the genes into the target organism.

Thus, Option C is correct.

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Chemical processes that involve one or more chemical reactions keep living things alive. Which of these types of chemical reactions joins small organic molecules into organic macromolecules? O A. Combustion O B. Hydrolysis O C. Oxidation O D. Dehydration​

Answers

Answer: Oxidation

Explanation:

Because when oxidation occurs it is basically telling you that the atoms are being changed into a different state hope this helped!

Question 1 of 25
The overall increase in the amount of carbon dioxide in the atmosphere
directly corresponds with all of the following except.
A. the decrease in the growth rate of some human populations.
B. changing weather patterns.
C. the overall increase in average global temperatures.
O D. the melting of the ice caps.

Answers

A. The decrease in growth rate of some human populations

Cellular Respiration is the process of what?

A. The release of energy from food.

O B. Producing oxygen at the cellular level.

C. Breathing.

D. The creation of food, powered by the energy of the sun.

Reset Selection

hen

Answers

Answer:

The answer is B

Explanation:

Think of it this way; Respiration = Breathing and we are on the cellular level

Cellular respiration is the process of releasing energy from food. The correct option is A.

What is cellular respiration?

Cellular respiration is the process of breaking down food molecules into simpler forms to produce energy in the presence of oxygen. The oxygen is added to the food to produce energy and release carbon dioxide and waste material out of the body.

Oxygen is taken from the environment, and they are attached to the hemoglobin molecule of the blood and taken into the body, then this oxygen is used in the metabolic function of the body.

Breathing is the process of getting air into the lung and out of the lungs. It is not a part of cellular respiration.

Thus, the correct option is A. The release of energy from food.

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Why are sponges considered as parazoa ​

Answers

Answer:

Sponge parazoans are unique invertebrate animals characterized by porous bodies. This interesting feature allows a sponge to filter food and nutrients from water as it passes through its pores.

Which of the following represents a population?
1 point
a single pigeon in a given area
a group of pigeons in a given area
a group of pigeons, mice and trees that live in a given area
all living things and non-living things in a given area

Answers

Answer:

A single pigeon in a given area

Explanation:

It tells us the actual number of pigeon in a specified area

should shellfish, which is labeled frozen but reicieved thawed, be accepted

Answers

No, bacteria can grow on and in it and can make you sick. Especially if warm.

which structure will be found in the nucleus of body cells in a woman?

a) x allele

b) x chromosomes

c) y allele

d) y chromosome

Answers

The x chromosomes are found in the nucleus of body cells in a women. Thus option b is correct.

What are chromosomes?

Chromosomes are defined as a thread like structure located in the nucleus of every cell in our body and are formed of tightly coiled DNA surrounding proteins.

Chromosomes plays very important role in human body.

The primary purpose of chromosomes is to transport DNA and genetic information from parents to offspring.

It play a vital role during cell division.

They keep DNA from becoming twisted and damaged.

There are basically two types of chromosomes.

AutosomesSex chromosomes

Thus, the x chromosomes are found in the nucleus of body cells in a women. Thus option b is correct.

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Help!

For which reason are various countries reluctant to make firm commitments to make deep reductions in greenhouse gases?


A. They believe reducing greenhouse gases will reduce the standard of

living in their countries.

B. Most of the emissions come from just a few rich nations.

C. They believe reducing greenhouse gases will not make a difference on

climate change.

D. all of the above

Answers

i think the most valid answer would be d

Two closely related beetle species are in the same location. They exhibit reproductive isolation, and they are both diploid. Biologists are arguing about whether it is more likely that they evolved via sympatric or via allopatric speciation. What statement presents the best argument

Answers

Adaptation speciation

Explain why stem cell research is a controversial subject. What are some of the sources for stem cells?

Answers

Answer:

Stem cell research is a controversial subject because they are human embryonic stem cell (hESC), and obtaining stem cells involves the destruction of human embryos

Explanation:

The inner cell mass of a 5 to 7-day-old blastocyst can be used to generate pluripotent stem cell lines. Human embryonic stem cell investigation, on the other hand, is morally and politically fraught since it encompasses the killing of human embryos.

What are stem cells?

Stem cells are the primary raw material of the body, the cells that give rise to every other cells with specialized functions.

Under the right circumstances, stem cells differentiate to form the most cells known as daughter cells in the body or in a research lab.

Stem cells are mostly found in bone marrow. This is how they divide in order to produce new blood cells.

Once mature, blood cells end up leaving the bone marrow and reach the bloodstream. A small number of immature stem cells enter the bloodstream.

Bone Marrow has long been thought to be the best source of stem cells.

Previously, if a patient required a stem cell transplant but didn't have access to umbilical cord blood stem cells, they earned a bone marrow transplant.

Thus, this is the reason to have stem cell research as a controversial subject.

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Which biome does this photograph represent?

Answers

Answer:

There is no photograph .

¿Qué acciones podrían realizar para poder reducir los gases de efecto invernadero como el Co2?
AYUDA POR FAVOR
DOY CORONITA Y 5 ESTRELLAS

Answers

Explanation:

Ser conscientes del impacto de las emisiones de CO2. ...

Reducir el uso del coche privado. ...

Practicar una movilidad sostenible. ...

Aumentar nuestra eficiencia energética. ...

Consumir energía renovable. ...

Seguir una dieta con baja huella de carbono. ...

Convertirse en un consumidor sostenible.

Más elementos…

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