After arousal by a sensory stimulus, consciousness can be maintained by positive feedback, because of activity in the

Answers

Answer 1

Answer:

This question lacks options, options are:

A) cerebral cortex.

B) basal nuclei.

C) sensory pathways.

D) motor pathways.

E) All of the answers are correct.

The correct answer is E.

Explanation:

The cerebral cortex processes and filters its information before passing the most relevant aspects to other regions of the brain. Some of these brain regions, in turn, send information back to the cortex. These loops, known as 'feedback systems', are considered essential for the functioning of cortical networks and their adaptation to new sensory information. Neural circuits must first assess the importance of incoming sensory information and then refine how it is processed in the future. Positive feedback, triggered with the purpose of amplifying the response to the initial stimulus, can be compared to a chain reaction or a vicious circle. Few are the functions regulated by this mechanism; rather it is triggered in pathological situations. It is the system by means of which the organism very rarely regulates any of the bodily functions under normal conditions, making the initial stimulus to be maintained and even increased. This type of mechanism is predominantly present in pathological situations: Its constitutive elements are: stimulus, receptor, afferent pathway, integrating center, efferent pathway, effector and response. The response does not have the ability to satisfy the initial stimulus.


Related Questions

blood consists of which fluid medium
a.lymph
b.platelets
c.plasma
d.all of these

Answers

Answer:

C. Plasma

Explanation:

Blood consists of a fluid medium called Plasma.

The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the ______ bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond.

Answers

Answer:

The purine ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the pyrimidine bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond.

Explanation:

In the de novo synthesis of nucleotides, their metabolic precursors such as aminoacids, ribose-5-phosphate, CO₂ and NH₃ are used as starting materials.

In purine  nucleotide synthesis, the ring structure is built up on ribose-5-phosphate of PRPP by addition of one or a few atoms one at a time starting with the amino group donated by glutamine until the first intermediate inosinate is synthesized.

In pyrimidine ring synthesis, orotate is first synthesized from carbamoyl phosphate and aspartate, and then is attached to ribose-5-phosphate of PRPP, before it is then converted to the common pyrimidine nucleotides starting from uridylate.


is the basic unit of structure and function of living things.

Answers

Answer:

cells

Explanation:

is the basic unit of life :)

write a poem about culture
give expiation for your answer
and describe how to write poem
and don't forget to write poem about culture?
please please answer this question ​

Answers

Explanation:my culture is pakistan and it's tradition and colours are well , most people decorate the buses on 14th august people do face painting and make delicious food in world there are many types of cultures and tradition, which people celebrate once in a year

I HOPE WHOEVER YOU ARE LOVE THE POEM AND PLEASE LIKE YOUR CULTURE IN WHATEVER COUNTRY YOU ARE BORN BECUASE IT'S YOUR COUNTRY WHICH IS BEAUTIFUL LIKE MY COUNTRY.

Which location is least likely to experience a volcanic eruption? Α. an island hot spot, such as the island of Hawaii B. Hamilton County on the plains of central Texas с. a convergent boundary, as in the Ring of Fire D a volcanic island arc, such as the Aleutian Arc in Alaska

Answers

Answer:

i think that the answer is B. Hamilton County on the plains of central Texas i took the test

Explanation:

Hamilton County on the plains of central Texas is least likely to experience a volcanic eruption. Therefore, option (B) is correct.

What are volcanoes?

Molten rock and gases stored under the surface erupt through a volcano, generating a hill or mountain.

Active, inactive, or extinct volcanoes. Active volcanoes are likely to erupt again. Dormant volcanoes may erupt again. Extinct volcanoes won't erupt.Magma collects inside active volcanoes. The magma chamber's pressure forces it through rock channels and onto the planet's surface.

Volcanic eruptions can be violent or slow-moving. Volcanoes erupt through vents on the sides or a primary entrance at the top. The volcano's morphology depends on eruption rate and magma chemistry. Land and sea volcanoes exist. As lava cools and hardens, underwater volcanoes build mountains and ranges. When volcanoes rise above the ocean, they create islands.

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Describe your plan to preserve the biodiversity of the town's lake. Make sure to include the materials that you would need for your plan to work and how you would scale it up to test it.

Answers

Answer:

10 Ways to Protect and Conserve Biodiversity

Government legislation.

Nature preserves.

Reducing invasive species.

Habitat restoration.

Captive breeding and seed banks.

Research.

Reduce climate change.

Purchase sustainable products.

A purebred tall pea plant is cross-pollinated with a tall, can you please help
heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

50%

Explanation:

because if you use the box method you see that half receive a short alele

   T     t

T TT  Tt

T TT   Tt

Properties of Water Lab Report

Instructions: Choose a property of water and design an experiment to test the property. Use the following lab template to ensure all lab report components are included.

Title:

Objective(s):
Identify the purpose of your investigation or the question you are attempting to answer. Be sure to tie in the property of water you are testing.

Safety Notes:
Always have parent(s) or guardian(s) permission and supervision when performing a lab activity at home.
Wear proper protective clothing and eyewear when needed.
Be sure to dispose of all materials properly.
Always wash your hands carefully after touching anything in a lab investigation.
Hypothesis:

Variables:
Independent Variable:
Dependent Variable:
Controlled Variable:

Materials:

Procedure:
The procedure should be clear and detailed so that others can repeat it. The details should be specific in how the procedure changes the independent variable, controls all variables that need to be controlled, and observes or measures the resulting changes to the dependent variable.

Data and Observations:
Present all data and observations in a neat and organized manner. Include tables and graphs where appropriate/possible.



Conclusion:
Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:
Was your hypothesis correct? Why or why not?
What were the results of your experiment?
What changes would you make if you were to repeat the experiment?

Questions:
Using what you have learned in the lesson and the experiment, answer the following question in complete sentences.
Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water.

Answers

Answer:

Hypothesis: I think the penny will hold more droplets plain water because adding soap to the water will disrupt surface tension

Independent variable: Penny and water dropper

Dependent variable: plain water

Independent variable:soapy water

Hope this helped

Aquatic organisms in coastal areas face a variety of predators on land and in the water and air. Which ocean process exposes the coastal aquatic organisms to land-based predators? a. Changing wind patterns alter the ocean currents, changing tide levels. b. Daily tidal patterns leave areas exposed to the land for part of the day. c. The constant wave action generates nutrients that attract predators. d. The ocean conveyor belt raises and lowers the water levels on the coasts.

Answers

Answer:

b

Explanation:

The correct answer as to the ocean process that exposes the coastal organisms to land-based predators would be the daily tidal patterns that leave the coastal area exposed to the land for a part of the day.

Some parts of the coastal areas become exposed to land during certain periods of the day as a result of tidal waves. When this happens, the aquatic organisms occupying these coastal areas become temporarily exposed to land predators who hunt and kill them for food.

Therefore, the correct option is b.

A/An ______________________________ is a specialized radiographic examination of the uterus and fallopian tubes.​ Question 94 options:

Answers

Answer:

Hysterosalpinography

Explanation:

It is Hysterosalpingography because it is an x-ray examination of uterus and fallopian tubes that uses a specific type of x-ray called fluoroscopy and a radiopaque material. It is use to examine women who find it difficult in getting pregnant to examine the shape of the uterus.

Why do you think premenopausal women need more iron than
men of the same age?

Answers

Answer:

Women need more iron than men to make up for the amount of iron they lose in their menstrual period.

Explanation:

Answer:

Premenopausal women shed blood as part of menstruation every month, which lowers the level of iron in the body. So, they need more iron than men and are also at a greater risk for this nutritional deficiency.

PLATO

Explanation:

Drag each tile to the correct box. Place the items in order from lowest to highest degree of internal organization. Please answer 1st at the top and last at the botttom

Answers

Answer:

Lowest to highest degree of internal organization form the given items are:

1) Digestive system: Digestive system is a type of organ system, which is consist of several digestive organs such as mouth, stomach, pancrease and intestine.

2) Stomach: Stomach is a type of organn which is a functional group of tissues.

3) Stomach lining tissues: These are functional group of cells.

4) Epithelial stomach cell: cell is a basic unit of all life.

Hence, the correct order form loowest to highest degree of internal organization is:

Digestive system => Stomach => Stomach lining tissues => Epithelial stomach cell

Place the respiratory structures into the order that air would pass through them during a normal inspiration.
Outside of Body
1. nares
2. vestibule
3. nasal cavity
4. choanae
5. nasopharynx
6. oropharynx
7. laryngopharynx
8. larynx
Inside of Body

Answers

Answer:

Outside of the body, nares, vestibule, nasal cavity, choanae, nasopharynx, oropharynx, laryngopharynx, and larynx.

Explanation:

During inspiration, the air enters through the nares in the nose.  From here, it goes up passing through the vestibule, the nasal cavity, and the choanae to start descending through the pharynx. The pharynx has three parts: the nasopharynx, which is in contact with the nose; the oropharynx that is in contact with the mouth; and the laryngopharynx, which is in contact with the larynx and esophagus. Between the oropharynx and laryngopharynx is the epiglottis, this is cartilage that prevents food from going to the lungs when we swallow food. After passing through the pharynx, the air flows through the larynx. From here, the air goes to the trachea, the bronchi, which enters the lungs giving the bronchioles, and these divide giving the alveolus, which is the place where the exchange of Oxygen and Carbon dioxide occurs.              

Placing the respiratory structures in the correct order :

Outside of  Body --> nares --> vestibule --> nasal cavity --> choanae --> nasopharynx --> oropharynx -->  laryngopharynx --> larynx -- > inside of body

During respiration the air enters from outside of the body into the body through the nares down to the vestibule, the nasal cavity which will descend down through to the pharynx which is further divided into three ( 3 ) parts which are; nasopharynx,  oropharynx, and laryngopharynx. The epiglottis is located between oropharynx and laryngopharynx.

Hence we can conclude that Placing the respiratory structures in the correct order ; Outside of  Body --> nares --> vestibule --> nasal cavity --> choanae --> nasopharynx --> oropharynx -->  laryngopharynx --> larynx

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I need help with this

Answers

Answer:

I know the answer

Explanation:

Yes

Yes

Yes

Which of the circumstances below most accurately describes conditions that are likely to permit a robust anti-tumor adaptive immune response?

a. A tumor with high expression of proteins that have mutations in sequences encoding HLA-binding peptides.
b. A robust acute inflammatory response to PAMPs expressed specifically by tumor cells.
c. Anti-tumor T lymphocytes that have high expression of CTLA-4.
d. A tumor with high expression of PD-L1.

Answers

Did you ever figure out the answer to this question?

The study of PAMP-DAMP complexes is vital to the advancement of knowledge regarding inflammatory disorders in general and cancer in particular. Therefore, option (B) is correct.

What is PAMP-DAMP complexes?

Increasing evidence links inflammation to cancer, and at the root of inflammation are PAMPs and DAMPs (DAMPs). Microorganisms contain PAMPs, which are detected by pattern recognition receptors on monocytes and DCs (PRRs). PRR activation produces pro-inflammatory cytokines.

A robust immune response requires endogenous chemicals that pose 'risk' to self-tissues and are created by injured or stressed cells; these are DAMPs, which also trigger inflammation. PAMPs and DAMPs each have about 100 receptors. PAMPs and DAMPs interact; a PRR can bind to both. In this system, PAMPs and DAMPs affect each other's activation threshold. Thus, PAMP-DAMP relationships describe inflammation in a predictable 'inflammatory code'

PAMP-DAMP complexes are key to understanding inflammatory disorders and cancer.

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ASAP What is a photosynthetic pigment? What is a photosynthetic pigment? A. An oxygen based compound that captures light energy. B. A light sensitive compound that changes color. C. A colored compound that captures light energy. D. A manmade compound that reacts to light.

Answers

I think the answer is A.

Answer:

A. An oxygen based compound that captures light energy.

During cellular movement which filaments will be the ones that are responsible for attaching and pulling the other filaments along?

Answers

Answer:

Myosin

Explanation:

Myosin are the major components of both muscle and non muscle cells in striated muscles which is responsible for contraction or movement that convert chemical energy (ATP) into mechanical work thereby generating force and movement.

During cellular movement , myosin filament will be the ones that are responsible for attaching and pulling the other filaments along because Myosin binds to actin at a binding site on the globular actin protein,it also have ATP binding sites which hydrolyses ADP to ATP , ATP binding causes myosin to release actin, which make actin and myosin to detach from each other thereby causing attachment and contraction of other filaments

Could an object, tool, or structure be made without the use of a natural resource? Explain your answer.

Answers

Bajamapa alsnbcian. Sin. A

What does ingestion and degradation of extracellular antigens and their subsequent presentation by MHC class II molecules lead to

Answers

Answer:

"Activation of CD4+ helper T cells" is the correct choice.

Explanation:

The major complicated of histocompatibility II seems to be the chemical compound for something like the T cells that presets antibodies. Antigens collected from those in the pathogens become transformed as well as inserted into a large histocompatibility system that's also distributed on either the cellular cell surface membrane representing antigen as well as the trigger is perceived by complicated systems of T cells as well as MHC II but rather contained throughout CD4 + support T cells.

PLS ANYONE IT'S URGENT Explain eubacteria ?

Answers

Eubacteria, or “true” bacteria, are single-celled prokaryotic microorganisms that have a range of characteristics and are found in various conditions throughout all parts of the world.

Answer:

Eubacteria are PROKARYOTIC organisms characterized by the lack of membrane and have peptidoglycan on cell wall when present.

Explanation:

They include most of the familiar bacteria such as E.

Hope it helps.

A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

The correct answer is - 25%.

Explanation:

A cross pollination between purebred tall pea plant and a heterozygous pea plant occurred as per the given condition. TT  is the allele representation of the purebred plant and heterozygous plant is represented by Tt, so the gametes will be formed would be - T & T and T & t allele.

The Punnett square of this cross is attached with the answer,

So the probability of short allele would be:

= (2/8) *100 , (where 2 is the number of short allele in offspring where 8 is total number of alleles)

= (1/4) *100  

= 25%

The end result of a chemical reaction is always:
A. the formation of new kinds of elements.
B. the production of water molecules.
c. a substance that was not ope of the reactants.
ak
s
D. a molecule that does not have an electric charge.

Answers

Answer:

The formation of new kinds of elements.

When a chemical reaction is finished, a new type of element is made. because the chemicals couldn't react to eachother without making something new.

A decrease in muscular activity or damage to neurons that attach to skeletal muscle can lead to a reduction in the size of muscle called

Answers

Answer:

The correct answer is atrophy

Some people use the terms "cell cycle" and "mitosis" as if they were the same thing. Which of these best describes why they are not the same?

a. the cell cycle is just a stage of mitosis
b. mitosis and the cell cycle are different types of cell division that occur in different of cells in a multicellular organism
c. mitosis is a sequence of events within the cell cycle that separates the genetic material
d. mitosis is a type of cell division that occurs in eukaryots and the cell cycle takes place in prokaryots

Answers

Answer: C. Cells in meiosis have unique genetic information

Explanation: Meiosis is the cell division that forms four daughter cells from one parent cell. It includes two successive divisions called as meiosis I and meiosis II. Crossing over during prophase I of meiosis I imparts new gene combinations to the daughter cells of meiosis. Hence, daughter cells formed by the end of meiosis have some new gene combinations, that is, unique genetic information.

The ostrich is a bird. However, it has traits that are different from those of the birds we typically see flying around our neighborhoods. Using credible sources, investigate the environment and adaptations of ostriches to explain how they evolved to survive in their environment.

Answers

Answer:

According to National Geographic, ostriches are a part of a very small group of birds that cannot fly because unlike most birds, their small wings are not strong enough to carry their body for flight and their breastbone isn't balanced enough for flying. Birds that are unable to fly are called ratites.

A number of scientists namely Thomas Huxley, Richard Owen, and others have tried to show that these ratites are actually related to each other and eventually, it was discovered that they all had one thing in common, the way the bones at the roof of the mouth were arranged was similar to that of reptiles rather than other birds.

Richard Owen found and assembled the remains of an extinct ostrich skeleton which was an extinct moa and contrary to already held opinion, one ratite known as tinamous did not really fit with the profile of a ratite because it could fly, even though almost grudgingly and they possessed keeled sternum which suggests that they evolved from flying birds.

DNA tests showed that tinamous evolved within ratites and not necessarily as a separate entity. The tests also showed that moas and tinamous are related.

It was also speculated that the division of the supercontinent Pangaea southern side led to the separation of flightless ratite ancestors, causing each landlocked group to evolve and become the flightless birds we know today such as the ostrich, rheas, etc.

Answer:

An ostrich is an extremely large bird that lives in Africa. It can’t fly, but it has powerful legs that allow it to outrun most predators. Its flexible knees and two-toed feet enable it to run easily. An ostrich has strong leg muscles that it can use to kick large predators. It has claws on its wings to defend itself from predators and thick feathers to keep it warm at night. Ostriches have thick eyelids that protect their eyes from sandstorms.

Explanation:

Circle
1
2
Circle the most reactive metal in each set.
1) Magnesium / Potassium
2) Aluminum / Gold
3) Cobalt / Cesium / Calcium
4) Iron / Titanium / Potassium
5) Francium / Lithium / Beryllium
لی

Answers

Answer:

Explanation:

1) potassium

2)Aluminium

3) Cesium

4) potassium

5) Beryllium

why does mosquito net easily form lather with hard water ​

Answers

Answer:

Hard water is defined as the type of water that does not readily give a good lather with soap.

Mosquito net do not form easily lather with hard water because hard water is made up of magnesium and calcium ions which precipitate the soap and unable to form lather.

Taxonomists today tend to group organisms into the same category based on similar what?

Answers

Answer:

characteristics

Explanation:

oranisms are grouped based on shared characteristics

Taxonomists today tend to group organisms into the same category based on their evolutionary history and shared ancestry, as explained in Option A, as this allows taxonomists to construct more accurate and detailed phylogenetic trees.

What is taxonomy?

The field of taxonomy is concerned with the classification of living organisms based on their shared characteristics, the aim of taxonomy is to group organisms in a way that reflects their evolutionary history and to provide a standardized system of naming, while earlier taxonomists relied on morphological characteristics, such as the physical appearance of an organism, but modern taxonomists instead use molecular and genetic data to group organisms into categories.

Hence, taxonomists today tend to group organisms into the same category based on their evolutionary histories and shared ancestry, as explained in Option A.

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The question is incomplete, complete question is below

Taxonomists today tend to group organisms into the same category based on similar what?

A)based on their evolutionary histories and shared ancestry

B)based on fossils

What are the biological methods of controlling mosquito population?

Answers

Explanation:

Biological control or "biocontrol" is the use of natural enemies to manage mosquito populations. ... Effective biocontrol agents include predatory fish that feed on mosquito larvae

PLS HELP ME OUT WITH THIS ANSWER........ WHAT IS DINOFLAGELLATES ?

Answers

Answer:

These are single-celled MESOKARYOTES constituting the phylum DINOFLAGELLATA

Explanation:

Their populations are distributed depending on sea surface temperature,e.t.c.

Hope it helps.

• They are basically unicellular, motile, biflagellate and photosynthetic protists. Predominate colour is golden brown but yellow, green, red and even blue also exists.Some Dinoflagellates like Gymnodinium and Gonyaulax grow in large number in the sea and make the water look red and cause the so called “red tide”.

Other Questions
If you stood on a planet having a mass four times higher than Earth's mass, and a radius two times 70) lon longer than Earth's radius, you would weigh:________ A) four times more than you do on Earth. B) two times less than you do on Earth. C) the same as you do on Earth D) two times more than you do on Earth. You've just won the lottery! Your winnings will be paid as a monthly annuity of $1,000 per month for 50 years. Assume an interest rate of 10 percent compounded monthly. (Do not round intermediate calculations. Round your final answer two decimal places.) What is the present value of your winnings if the first payment starts today U.S. net capital outflow Group of answer choices is a source of the supply of loanable funds, and the source of the supply of dollars in the foreign exchange market. is a source of the supply of loanable funds, and a source of the demand for dollars in the foreign exchange market. is a part of the demand for loanable funds, and the source of the supply of dollars in the foreign exchange market. is a part of the demand for loanable funds, and a source of the demand for dollars in the foreign exchange market. An object accelerates to a velocity of 230 m/s over a time of 2.5 s. The acceleration it experienced was 42 m/s2. What was its initial velocity? Pablo graphs a system of equations. One equation is quadratic and the other equation is linear. What is the greatestnumber of possible solutions to this system? Possible Points: 100 One January day, the low temperature in Fargo, ND was -8 degrees. Over a period of six hours, the temperature rose 4 degrees per hour. After si hours, what was the temperature? 5. Kroger can use __________ gathered from ClickList orders to determine which products they should keep more or less of in stock. If the government wants to raise tax revenue, which of the following items are good candidates for an excise tax? Why?a. granola bars.b. cigarettes.c. toilet paper.d. automobile tires.e. bird feeders. Write the equation of the line that passes through (2, 6) and (2, 14) in slope-intercept form. (2 points) The difference between total sales revenue and total cost of goods sold is the: A. Trade margin B. Gross marketing contribution C. Net marketing contribution D. All of the above (08.01) Two lines, A and B, are represented by the following equations: Line A: y = x 1 Line B: y = 3x + 11 Which of the following options shows the solution to the system of equations and explains why? (3, 2), because the point does not lie on any axis (3, 2), because one of the lines passes through this point (3, 2), because the point lies between the two axes (3, 2), because both lines pass through this point A student made the Lewis dot diagram of a compound as shown. Mg is written with two dots shown on its top. Cl is written on the right side of Mg. Cl has seven dots around it. An arrow is shown from one dot on Mg toward the vacant space around Cl. Another arrow is shown from the other dot on Mg toward the vacant space around Cl. On the top, the art title is written as Students Lewis Dot Model. What is the error in the Lewis dot diagram? Books like The Lonely Crowd (1950) and Catcher in the Rye (1951) Group of answer choices criticized the American pressure to conform and the phoniness of American life. described male insecurity in a female-dominated world. were banned in several major cities for their exploration of sexual themes. attacked the decline of American morals. What is 16.30 to the 100th gram PLEASE HELP ME!! I WILL GIVE BRAINLIEST!! Find the output, y, when the input, x, is -5. Someone offers to buy your car for four, equal annual payments, with the first payment coming 2 years from today. If you think that you could sell your car to another purchaser for an immediate payment of $9,000 and the interest rate is 10%, what is the minimum annual payment that you would accept from this buyer? When did Captain cook discover Australia Express as a trinomial.(3x+5)(2x+9) Lawyers interview potential witnesses outside of court during which pretrialprocess?A. MediationB. DepositionsC. DiscoveryD. Deliberation Someone please help me ASAP