In a positive-feedback system where hormone a alters the amount of protein x,

Answers

Answer 1

an increase in A produces and increase in X

This is a positive feed back mechanism. This mechanism enhance or amplify changes. This tends to alter the balance away from equilibrium because one hormone will increase the release of the other hormone. An example of this is the child birth. During labor, oxytocin is released to increase the uterine contraction the release of oxytoocin will be induced by the contractions of uterus. This will go on until the child was born. Just remember positive feedback enhance the original stimulus.

Related Questions

Which endocrine gland is indicated by the arrow?

Answers

it is the thyroid gland

What is always true of a binary compound? A-It has two elements B-It has two atoms C-It has a double bond D-It has covalent bonds.

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The answer is it has two elements (A).

Answer:

Option A, It has two elements

Explanation:

The word binary indicates that a substance consists of two elements. Thus any binary compounds must consists of two different elements. A binary compound may consists of single , double or triple bond. These compounds may be ionic or covalent compound .

Some common examples of binary compound are –

a) NaCl

b) N2O

c) MgO

d) KI

Hence, under any circumstance a binary compound consists of two different element.

Of the events listed here which comes the latest in ciliate reproduction? note: not all events in the reproduction are listed.

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If the events you are referring to are:

a. cells separate

b. disintegration of micronuclei

c. mitosis of micronuclei

d. meiosis of micronuclei

e. micronuclei fuse

f. exchange of micronuclei

If we fix this in order, the first would be mitosis of the micronuclei, then the meiosis of micronuclei, then the micronuclei breakdown. Then there conjugating cells exchange micronuclei and then they fuse. Lastly the cells separate.

The answer to the question is the cells separate.

How does the compressor lubrication system differ for reciprocating and centrifugal compressors?

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In a centrifugal compressor, the refrigerant and the oil systems are separate. The oil is in a separate oil sump and the oil pump powered by a separate motor. On the other hand, the reciprocating compressor is powered by the compressor shaft.

Answer:

Both the reciprocating and centrifugal compressors are the parts of refrigeration and air conditioning technology. The lubrication is provided by the pressure lubrication system in the reciprocating compressor. This system utilizes pressurized oil for lubrication. While, on the other hand, the lubrication is attained by a three-phase fractional horsepower motor and oil pump in case of a centrifugal compressor.

"classifications of lipoproteins include: very low density lipoproteins, low density lipoproteins, high density lipoproteins and __________."

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The four types of Lipoproteins are:

Very Low Density Lipoprotein: Very low density lipoprotein consists of protein, cholestrol and fats. It is synthesized at liver. It has 5 apoporotein asosciated with it and in conversion to intermediate density lipoprotein and low density lipoprotein these apoproteins are removed except one apoprotein called B100.

Low Density Lipoproteinfats. It chiefly consists of cholestrol. It transport all the fat molecules around the body to extracellular fluid. LDL posses risk of cardiovascualr diseases if it invade the endothellium and oxidized.

High Density Lipoprotein: HDL is the dense lipoprotein with highest protein to fat ratio.HDL takes awat fat from cells to liver thereby lowering blood cholestrol level. Hence also knows as good cholestrol. HDL increases with exercise, weight loss and higher estrogen level.

Chylomicrons: Chylomucrons are largest and least dense lipoprotein. It has got highest triglyceride content. It transport fats and cholestrol from intestine to liver, muscles and fat cells.

The right answer is chylomicrons.

A chylomicron is a variety of lipoproteins (protein-associated lipids) present in the blood consisting almost entirely of exogenous triglycerides.

In other words, it is large, light and bulky particles, of a greasy nature, taking a certain shape in the blood (which has a milky appearance when they circulate there), and carrying the triglycerides coming from the diet after a meal. high in fat.

Which of the following is a main function of a stem?
to anchor the plant to the ground
to store water for the plant
to store food for the plant
to bring water to the plant

Answers

A stem is one of two main structural axes of a vascular plant. The stem is normally divided into nodes and internodes, the nodes hold buds which grow into one or more leaves, inflorescence (flowers), cones or other stems etc. The internodes act as spaces that distance one node from another.

Answer:

to store water for the plant

Explanation:

An adult client, diagnosed with narcolepsy, admits being embarrassed to receive this diagnosis and is adamant that no one find out about it. the nurse should respond to the client by explaining what aspect of the etiology?

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The correct answer is "this is the result of neurological factors over which you have no direct control".
Narcolepsy is a neurological condition which blocks a person's ability to control its sleep-wake cycle. Common symptoms could be bad sleep quality, hallucinations while sleeping, sudden loss of muscle strength and excessive sense of sleepiness during the day. Being a neurological condition, patients have no control over their symptoms. The causes of the disorder are unknown, only a very small percentage of the cases (10%) is considered to be familial. Specific psychological conditions, such as trauma, are suggested to play a role.

Ist the major factors that are linked to essential hypertension and note which ones are controllable by the patient.

Answers

There are many factors that contribute to the development of essential hypertension. First is genetic predisposition which cannot be controlled by the individual. Another uncontrollable factor is age.

The controllable factors that involves the development of hypertension is diet, obesity, presence of a co-morbidity most commonly diabetes mellitus, excessive stress, and cigarette smoking.

Small intestine breaks down food enzymatically into small enough pieces for the nutrients to be absorbed. Which statement best describes this process? A) Small intestine mixes the food particles. B) Small intestine produces gas from the food. C) Small intestine moves food through the digestive track. D) Small intestine changes the chemical composition of food.

Answers

Answer: D) Small intestine changes the chemical composition of food.

Explanation:

Small intestine breaks down food enzymatically into small enough pieces for the nutrients to be absorbed. Which statement best describes this process?

Option D Small intestine changes the chemical composition of food.

As said in the question, the small intestines breaks down food with the aid of chemical digestion i.e. using enzyme/chemicals to break down food from larger state to smaller ones enabling the nutrients to be absorbed. This enzymatic/chemical addition changes the chemical composition of the substances. For instance, protein is broken down by the enzyme trypsin into the smaller forms of peptides and amino acids allowing them to get absorbed into the surrounding environment.

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Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. C) osmosis. D) a passageway.

Answers

Answer:

b) energy

Explanation:

To survive, cells require many substances to be at higher concentrations inside the cell than outside of it. This is known as active transport and requires cell energy.

The transport of materials into a cell against a concentration gradient requires energy. So the correct option is B.

What is active transport?

A kind of cellular transport where substances or materials move against a concentration gradient is called active transport. The direction of transport is from an area of lower concentration to an area of higher concentration. Thus this process requires the expenditure of energy and it uses the help of membrane proteins like the carrier proteins.

In the process of active transport, the substances like e.g. ions, glucose, and amino acids are transported across the membrane from the region of their low concentration to the region of their high concentration. Thus, the movement is against the direction of their concentration gradient.

This is why cellular energy in the form of ATP is utilized in the case of active transport. This is different from passive transport where kinetic and natural energy is utilized. ATP can be produced by the process of cellular respiration.

Therefore the correct option is B.

Answers

i would believe that it is a salamandar because it has a long thin body

a salamander because of its loong skinny body

Kenya starts to get into the hot tub, but the water feels extremely hot. she stands in the water for a few moments, then slowly eases the rest of her body down into the water. after a few minutes, she feels quite comfortable; the water no longer feels too hot. this decline in sensitivity to a constant stimulus that kenya has experienced is called

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The answer is 'sensory adaptation'. This happens when your sensory system senses a constant stimulus. After a short while, your sensory system will respond less, and then won't respond at all. This is to allow adaption to your environment. For example, if you live above a subway system, you will eventually become used to the sound of underground trains and vibration, and eventually you won't notice it at all..

The renal tubules secrete h+ into the tubular fluid, where most of it binds to bicarbonate, ammonia, and phosphate buffers.

Answers

The renal control of pH buffering involves neutralizing more acid or base more than other systems in the body because they can also expel them from the body. The renal tubule secretes H+ into tubular fluid, where most of it binds to bicarbonate, ammonia, and phosphate buffers in renal tubules. Therefore the bound and free H+ excreted is excreted in urine. Other body systems only reduce the concentration by binding it to chemical buffers.

You see a woman collapse in front of you while entering the lobby of your office building. you check the scene and then check the person for consciousness, but she does not respond. what should you do next.

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Hey there :)

The ideal and best thing to do is call the ambulance.

The following questions must be taken into consideration to know when to call the ambulance for an emergency.
- Is the victim's current situation life threatening?
- Could the condition get worse?

If your answers are yes, especially to the scenario given above, you should call an ambulance.

-

Call or have someone else call 911 or the local emergency number immediately.

What is consciousness?

Medical professionals gauge a patient's level of arousal and responsiveness to determine their level of consciousness, which can be thought of as a continuum of states that range from full alertness.

Also comprehension to disorientation, delirium, loss of meaningful communication, and finally loss of movement in response to painful stimuli.

The conscious, preconscious, and unconscious levels of awareness were separated by Sigmund Freud.

A person needs to dial 911 if:

Any ongoing criminality (robbery, burglary, prowler, fights, etc.) A fire of any kind (structure, vehicle, brush, etc.) A car accident, particularly if there are injuries.When you or the person you care for feels unsafe.

Thus, as you see a woman collapse in front of you while entering the lobby of your office building, immediately call 911.

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A skeletal muscle deprived of adequate atp supplies will _____.

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The correct answer is that the skeletal muscle will enter a state wherein actin and myosin cannot separate. In the presence of adequate ATP, ATP will act to detach the myosin head to actin then ATP will be hydrolyzed to ADP then the myosin head will attach to actin. In the absence of adequate ATP, there will be no ATP to detach the myosin head to actin therefore the actin and myosin cannot separate and muscles will be contracted and stiff. This happens in ATP depletion and muscle stiffness in dead persons called rigor mortis.

Mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important because smaller pieces of food ________. mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important because smaller pieces of food ________. are more easily stored in the stomach than are larger pieces of food are easier to excrete than are larger pieces of food do not taste as good as larger pieces of food have more surface area for chemical digestion than do larger pieces of food

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This is because smaller pieces will have more surface area for chemical digestion than larger piece of food.

Foods are digested by a combination of two methods (mechanical and chemical. In mechanical digestion it brokes down physically the food into smaller pieces via chewing, churning and segmentation done in the intestine. In the mouth through mastication food is initially broken. In the stomach, the muscles in its walls squeeze and mix the food with digestive juices. In segmentation, contraction and relaxation of segments occur in the intestines.

It is important because smaller pieces of food have more surface area for chemical digestion than larger pieces of food do. Mechanical digestion begins in the mouth as the food is chewed, it is the physical breaking down the food by non-chemical means. In the mouth the specialized teeth break down the food as it is cut by the incisors, torn by the cuspids and ground by the molars. The food is then manipulated in the mouth by the tongue, and cheeks to mix and moisten the food forming a bolus or ball which is pushed to the back of the tongue, then swallowing takes place.

Derotative righting, labyrinthine righting, and parachute are all examples of:

Answers

Derotative righting, labyrinthine righting, and parachute are all examples of: postural reactions.

9. Biodiversity is valuable partly because it (1 point)
gives us interesting things to look at.
tells us about many other species.
contributes to medicine and agriculture.
provides humans with resistance to disease.
10. Which of the following is NOT a threat to biodiversity? (1 point)
pollution
deforestation
crop rotation
climate change

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9. Contributes to medicine and agriculture Explanation: The plant varieties and different animal species in a given location helped vegetation and many medicines were found to help mankind.
10. Crop rotation Explanation: different varieties of crop were developed and rotation of crops in due seasons is essential for the growing population. Pollution, deforestation and climate change all affect the world.

The most common type of settlement in the world is a __________ settlement.

a. farming

b. nucleated

c. von thunen

d. grid please select the best answer from the choices provided. a b c d

Answers

The most common type of settlement in the world is a nucleated settlement.

What is a settlement?

A settlement is a place where people live. It could be an area of a town that is residential or the part of a village that is inhabited by people.

The commonest settlement type in both towns and village across the world is the nucleated settlement where people live close together.

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A 1-month-old infant in the neonatal intensive care unit is dying. his parents request that a nurse give the infant an opioid analgesic. the infant's heart rate is 68 beats/minute and his respiratory rate is 18 breaths/minute. he is on room air; oxygen saturation is 92%. the nurse's response to the parents' request should be based on the fact that:

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Answer:

Providing analgesia during the last days, and hours, is an ethically- appropriate nursing action.

Explanation:

All clients, regardless of age, have the right to die with dignity, and be free from pain. The parents have the right to request an opioid to relieve the child's distress. Assisted suicide requires some action on the part of the client, and this is not possible for a one- month old infant. Both the nurse and the parents have an ethical duty to the child. Withholding the opioid analgesic from a dying child is not appropriate, because, of fear it may hasten death, at any age, and this is not considered a contradiction for administering of analgesia.

Hope it helps.

The Kingdom _____________ might be considered a "grab bag" of organisms: unicellular, multicellular, autotrophic, heterotrophic.

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The answer would be Kingdom Protista

There is 6 kingdom in biology: Animalia, Plantae, Fungi, Protista, Bacteria, Archaebacteria. Kingdom Protista has a diverse kind because its member is the organism that could not be classified as Animalia, Plantae or Fungi.
Since the classification based on exclusion, Protista member has less similarity than other kingdoms. That is the reason that protista called "grab bag" kingdom.

A charged body may cause the temporary redistribution of charge on another body without coming in contact with it. this process is called

Answers

The answer is electrostatic induction. When a charged object is brought in close proximity to an uncharged object, Colomb forces from the charged objects causes a rearrangement of electrons and protons in the uncharged object. This gives the uncharged object polarity which is reversible when the charged object is removed.

Final answer:

Electrostatic induction is the process where a charged body induces a temporary redistribution of charge in a nearby neutral body without direct contact. This can result in an area of negative electric charge developing within the neutral body. No charges are created or destroyed; they are simply moved to different locations within the object.

Explanation:

The process described where a charged body causes a temporary redistribution of charge on another body without direct contact is known as electrostatic induction. During electrostatic induction, a charged object, when brought near a neutral object, can induce an unbalanced charge distribution within the neutral object, effectively changing its electrical condition temporarily. For example, if a positively charged rod is brought near a neutral conductor, electrons within the conductor will be attracted towards the rod, creating a region of negative electric charge near the rod, while leaving the other side positively charged. This redistribution of charge within the neutral conductor happens without any actual transfer of charge between the rod and the conductor.

Charging by induction is another term for this process. An important principle to remember is that during this process, no charges are created or destroyed; they are merely separated. The total amount of charge remains constant, adhering to the conservation of charge principle.

What is the best evidence telling you whether this cell is diploid or haploid? what is the best evidence telling you whether this cell is diploid or haploid? the cell is diploid because it contains two sets of chromosomes. the cell is haploid because the chromosomes are not found in pairs. the cell is diploid because each chromosome consists of two chromatids?

Answers

The answer would be: The cell is diploid because it contains two sets of chromosomes

The only way to diagnosis haploid cells would be by exclusion. To do that you need to examine all the chromosome and make sure that they are no coupled chromosomes.
But you can diagnosis diploid right away if you can find two sets of any chromosomes.

PLEASE HELP AND HURRY WILL GIVE BRAINLIEST
Lichens result from the symbiosis between a fungus and
A. photosynthetic bacteria.
B. Euglena.
C. photosynthetic algae
D. both (A) and (C)

Answers

the answer is D. both (A) and (C)

which statement describes a DNA but not RNA?

it is involved in making proteins.

it carries genetic information

it has four types of nitrogenous bases.

it never moves out of the nucleus.

Answers

DNA does not move out of the nucleus

Answer:

Option). it never moves out of the nucleus.

Explanation:

DNA and RNA are nucleic acids, made up of sugar, nitrogen bases, and phosphate groups. Both DNA and RNA are involved in the process of protein synthesis as information present in DNA is first transferred to RNA (transcription) and from RNA to protein (translation).

Generally DNA acts as genetic material in all living organisms, but in some viruses, RNA acts as genetic material. Both DNA and RNA have four types of nitrogenous bases.

DNA never comes out of the nucleus, but during protein synthesis RNA comes out from the nucleus as in eukaryotes, RNA is synthesized in nucleus, while translation takes place in cytosol.

Thus, the correct answer is fourth option.

What adaptations does this plant have to thrive in a dry, arid climate?

The questionnaire shows a picture of Mexico Cactus.

Answers

This plant must be be able hold/store plenty of water. This plant also needs to be able to protect itself.

Evidence that cytoskeletal elements have ancient origins comes from

Answers

-the sequence similarities of cytoskeletal elements when comparing distantly-related organisms.
-the presence of cytoskeletal elements in both eukaryotes and prokaryotes.
-the observation that both prokaryotes and eukaryotes use cytoskeletal elements to assist cell division.
-the ability to form functional hybrid microfilaments from actin monomers taken from distantly-related organisms.

Which of the following is not an intensive physical property?
Electrical conductivity
Mass
Density
Freezing point

Answers

It's mass because mass is an extensive property not intensive.

Mass is not an intensive property of matter as it depends on the amount of matter present.

What are intensive physical properties?

Intensive physical properties are properties of matter which depends only on the type of matter in a sample and not on the amount of matter in that sample.

Examples of intensive properties of matter are:

Electrical conductivity Density Freezing point

Mass is an extensive property of matter.

Therefore, Mass is not an intensive property of matter as it depends on the amount of matter present.

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Any stimulus that, when removed after a response, strengthens the response is called a(n) positive reinforcer. negative reinforcer. unconditioned stimulus. conditioned stimulus.

Answers

A negative reinforcer is any stimulus that, when removed after a response, strengthens the response.

Final answer:

Negative reinforcement refers to the strengthening of a behavior by the removal of an undesirable stimulus after the behavior occurs. In contrast to positive reinforcement, which strengthens a behavior by adding a positive stimulus, negative reinforcement works by subtracting a negative one.

Explanation:

Any stimulus that, when removed after a response, strengthens the response is called a negative reinforcer. It is a term used in operant conditioning, a form of learning where the strength of a behavior is modified by its consequences, such as reward or punishment. The concept behind negative reinforcement is that by removing an undesirable stimulus after a behavior, that behavior will increase. For instance, if a student studies hard and as a result, the teacher cancels a scheduled test (an undesirable stimulus), the student's studying behavior might increase.

Its counterpart, positive reinforcement, refers to the addition of a pleasurable stimulus to increase the behavior. In contrast, a negative reinforcer involves removing an aversive stimulus to enforce the desired behavior. Both of these techniques aim to increase the likeliness of a behavior.

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Water is transported to the leaves where it is combined with _________ to form a sugar.

Answers

Water is transported from the roots, where the main portion of water is absorbed, and up the plant through the xylem; the xylem is an interconnected system of tubes where the water circulates through the plant. Water then flows through the cortex of the plant, through the endodermis, or innermost layer of cells, and finally into the cells' vascular bundles. Transpiration, which is the evaporation of water through the stomata, is responsible for the movement of the water from the xylem into the mesophyll cells and finally into the leaves.

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A survey found that 25% of pet owners had their pets bathed proffesionally rather than doing it themselves. If 18 pet owners are randomly selected, the probability that exactly 5 people have their pets bathed proffesionally is A. 19.99% B. 19.88% C. 18.99% D. 18.88% State a true conclusion.1) If it is June, then it is summer.2) It is summer.Conclusion: which statement reflects the importance of alliterative verse in an epica. it makes characters seem larger than lifeb. it makes the epic more professionalc. it hinders the reader's speedd. it makes the poem easy to memorize Kevin is 2 times as old as Gabriela. 12 years, Kevin was 6 times as old as Gabriela.How old is Gabriela now andy earned $38 on monday and $34 on tuesday.how many lucky bamboo plants can he buy with the total money he earned? Factor. 25m^100121n^16(5m1011n4)(5m10+11n4)(5m5011n8)2(5m5011n8)(5m50+11n8)(5m1011n4)2 Is my math answer correct or no? Look at the family tree. Choose the correct relationship between Andrea and Pedro Need to find the formula for:Car problem: Julie wants to borrow her parent's car to drive to a tournament. Her parents tell her she has to pay for the gas she uses. The car gets 26 mpg. Julie wonders how much gas she will need to purchase to get to the tournament and back. ASAP What is the lateral area of this regular octagonal pyramid?? Explain your answer if you can plz thanks Which of the following represents the most accurate estimation of 388 - 212? MATH HELPLEASE. WILL GIVE BRAINLIEST!What is the measure of AC ?Enter your answer in the box. 14. Which of the following happens when ice melts?A. Energy flows from the ice to its surroundingsB. Water molecules move from their fixed position.C. Water molecules lose energy D. The temperature of the ice increases as it melts which sentences in this excerpt from "I Talk of Dreams" by W. D. Howells illustrates that it is a reflective essay? The latitude in New York City is about 40 degrees north. Do the Suns rays ever shine directly overhead in New York City? Explain your answer. What property of a wave increases as the wave's energy increases? question 19 options: pitch frequency amplitude wavelength? Which best describes the flow of genetic information?a.the phenotype is controlled only by the genetic code of an organism.b.proteins produce genes that control the production of alleles.c.information is passed from proteins to the dna in the nucleus.d.the general flow of genetic information is from dna to rna to protein? _______ refers to long-lasting attitude change that arises from attempts to reduce cognitive dissonance. A bakery supplier receives an order for 2 Tons of sudar from a bakery chain. The sugar is shipped in crates. Each crate holds eight 10-pound bags of sugar. How many crates does the supplier need to ship to fulfill the order? The definition of mutation is "any heritable change in the genetic material." the qualifier "heritable" is necessary because: most changes in the genetic material are repaired soon after they occur. changes in the genetic material occur at random along the genome. changes in the genetic material occur without regard to the needs of the organism. most changes in the genetic material are harmful to the organism.