When a woman goes into the first stage of labor, the oxytocin level in her plasma is 40 pg/ml, but during the second

stage of labor it is 123 pg/ml. Once the baby has been delivered the mother's oxytocin level is 64 pg/ml. Which type of feedback

mechanism is occuring?

A. Negative feedback

B. Positive feedback

Answers

Answer 1

Answer:

Positive Feedback

Explanation:

Answer 2

A positive feedback mechanism occurs in a contraction of uterus during childbirth.

What is a feedback mechanism?"It is a physiological regulation system in a living body that works to return the body to its normal internal state (or homeostasis)."It is of two types: positive feedback mechanism and negative feedback mechanism.

In positive feedback mechanism: when activation of one component leads to the activation of another, it is known as positive feedback.

Example: During childbirth, the oxytocin level of a women into her first stage of labor is 40 pg/ml for uterine contraction, which activate more release of oxytocin for further contraction.

In negative feedback mechanism: when activation of one component leads to the inactivation of another, it is known as negative feedback.

Example: when blood glucose level increase, the insulin are secreted which lowers the glucose level in blood.

Hence, the correct option is: B. Positive feedback.

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Related Questions

Can there be wild hyenas in New Mexico?

Answers

if there is jungle than it can be.

But wild hyenas is found in south Africa.

Answer:

Wild hyenas are found in some parts of Africa

Explanation:

So i don't think so unless you have one as a pet and for some reason it goes wild and escapes  

Your doctor prescribed eye drops for you to treat a certain condition. You obtain the eye drop liquid medication in a small bottle containing a total volume 20 ml. Your instructions were to apply 2 drops in each eye at night. Given that the volume of 1 drop is 0.05 ml. Calculate many days will the eye drop liquid medication last?

Answers

Answer:

100 days

Explanation:

1 drop is .05 mL

2 drops are 0.1 mL BUT there are TWO EYES so 0.1mL x 2 = 0.2mL

the math would be 20mL x 1day/0.2mL = 100.

Your doctor prescribed eye drops for you to treat a certain condition. There will be 100 days that the eye drops liquid medication last.

What is liquid medication?

Patients who have trouble swallowing tablets and capsules, such as children and the elderly, are more likely to utilize liquid medications. The several kinds of liquid medications include syrups, suspensions, and solutions.

The bottle has 20 ml of liquid

the dose is 2 drops per eye per day

one drop equals 0.05 ml

the average human being has 2 eyes (inferred)

Now let's see how much medicine we use in one day:

2 drops per eye per day

Substitute numbers for words:

2 x 0.05 x 2 = 0.2 ml used per day

How long will the bottle last?

20 ml ÷ 0.2 ml per day = 100 days

Therefore, the days will the eye drop liquid medication last are 100 days.

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What is the a simple heart central conflict?

Answers

Answer:

The central conflict in the book by Gustave Flaubert speaks to the inability of the housemaid to (after the death of her mistress) love (that is care for) herself when ironically she had given all her heart in the devotion to same.

Explanation:

Félicité -the housemaid is a characterised as a simple-minded, woman who although loyal  to a fault suffers tremendous loss the loss is mostly psychological.

She is unable to bring herself to live a life outside the one which she had with her mistress. So as the very house where she and her mistress lived decays, so does her condition worsen.

Cheers!

Through which conversion is energy released?
ADP to ATP
ATP to ADP
NADP+ to NADPH
CO2 and H2O to C6H12O6 and O2

Answers

Answer:

B. ATP to ADP

Explanation:

Just took the quiz on e2020

Answer:

B :)

Explanation:

just took the test

Convert the following measurements to scientific notation format:

4.2 milliliters= ______?_______ x 10? liters

Answers

There’s 1000 mL in 1 liter so it would be 4.2*10^3 liters

Scientific notations are used to write the numerical values in easier formats. The unit conversion of the volume can be written as 4.2 milliliters = 4.2 × 10³ liters.

What is scientific notation?

Scientific notation has been the way to write the smaller and larger numbers in the form of coefficients and a base raised by the exponential powers. It uses decimal and base 10 to write the numerical values.

It is generally used to write the converted units that are larger or smaller. The exponential power to the base in scientific notation is non-zero integers and can be either positive or negative.

The units of volume can be converted from mL to liter as:

1 mL = 1000 liters

Given,

Volume = 4.2 milliliters

Converting units as:

1 mL = 1000 liters

4.2 mL = 4200 liters

It can be written in scientific notation format as: 4.2 × 10³ liters.

Therefore, the scientific notation is written as, 4.2 × 10³ liters.

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Discuss the role of proteins in membrane structure and transport of molecules across the membrane?

Answers

Transport proteins move molecules and ions across the membrane. They can be categorized according to the Transporter Classification database. Membrane enzymes may have many activities, such as oxidoreductase, transferase or hydrolase. Cell adhesion molecules allow cells to identify each other and interact.

The  role of proteins in membrane structure and transport of molecules

across the membrane include the production of hydrophilic pores to aid

movement of molecules into the cell.

Proteins are organic substances found in cells which produce pores which

have a high affinity to water thereby allowing  other important molecules

enter into the cell.

It is a very important feature of the cell membrane as it ensures there are

enough nutrient needed by the cell to prevent starvation and death.

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Which of the following is a function of nucleic acids?

Answers

Answer:

The functions of nucleic acids have to do with the storage and expression of genetic information.

Explanation:

If it is a multiple choice. Try to find the coomb functions mentioned above.

Answer:

The answer is:

Carrying the genetic information of an organism

Explanation:

What’s the difference with prokaryotes and eukaryotes and how are they the same?

Answers

There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.

What type of organic substances are fats

Answers

Answer: lipids


explanation: uh yeah

Which is the correct chemical equation for photosynthesis? 6CO2 + 6H2O ® C6H12O6 + 6O2 C6H12O6 + 6O2 ® 6CO2 + 6H2O 3CO2 + 3H2O + 3O2® C6H12O6 6O2 + 6H2O ® C6H12O6 + 6CO2

Answers

Answer:

[See Below]

Explanation:

Here's the equations for photosynthesis.

~Hope this helps Mate. If you need anything feel free to message me.

The eqation which reporesent Photosynthesis is 6CO2 + 6H2O ® C6H12O6 + 6O2

Photosynthesis is the process by which green plants manufacture their food(in form of sugar) using carbon dioxide and water in the presence of sunlight. This is possible because of the presence of  chlorophyll which creates a medium to absorb the sun's energy. The Light energy formed then converts water and carbon dioxide into oxygen and  sugars.

The chemical equation to represent the process is as follows

6CO2 + 6H2O ------> C6H12O6 + 6O2.

                      sunlight

         

Here,  six molecules of  carbon dioxide and six molecules of water reacts in the presence of  light energy captured by chlorophyll from the sun to  form  sugar  and six molecules of oxygen.

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Nucleic Acids make up DNA. DNA, in turn, is used as a blueprint to make

Answers

Answer:

I believe its RNA

Explanation:

RNA is the new copy of DNA

Nucleic Acids make up DNA. DNA, in turn, is used as a blueprint to make RNA.

What is DNA?

Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid.

The DNA of an individual can be found in almost all of their cells. DNA contains the bases adenine (A), cytosine (C), guanine (G), and thymine (T) (T).

All biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule.

It plays a major role in the production of proteins by acting as a messenger for DNA, which in turn carries the genetic instructions necessary for life's growth and maintenance.

The DNA blueprint is first transcribed into RNA, another large macromolecule, to generate proteins.

To create proteins, ribosomes receive the exported RNA from the cell nucleus. The RNA sequence is read by ribosomes, which then use it as a template to make new protein molecules.

Thus, RNA is the molecule made from the blueprint of DNA.

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To unlock the fifth wheel, pull the release handle to the________ position.

Answers

Answer:

The correct answer is "open".

Explanation:

The fifth wheel is an element that couples a heavy-duty pickup truck and a camping trailer. To unlock the fifth wheel it is necessary to pull the release handle to the open position. In the open position of the release handle the fifth wheel is unlocked, which allows to uncouple the heavy-duty pickup truck and the camping trailer

Lana is studying the deer that live in a forest. She concludes that all of the deer are members of the same
Choosely
because
they look alike and breed with one another. Next, she observes how the deer Choose...
Choose...
inter
and other
hydrosphere
living things of the forest Choose...
geosphere
ecosystem
species

Answers

Lana concludes that all of the deer in a forest are members of the same (geosphere / ecosystem / species / hydrosphere) because they look alike and breed with one another. She observes how the deer (population / community / ecosystem / biosphere) interacts with trees, wolves, and other living things of the forest (population / community / species / geosphere).

Answer:

1.  Species

2.  population

3.  community

Explanation:

Given the available options. Here is the correct or full text that matches with the correct meanings.

Lana is studying the deer that lives in a forest. She concludes that all of the deer are members of the same SPECIES because they look alike and breed with one another. Next, she observes how the deer POPULATION interacts with trees, wolves, and other living things of the forest COMMUNITY

In the taxonomical classification system, similar organisms are grouped in a species that is capable of interbreeding and in exchange for their genetic materials.

The correct blanks are:

Blank 1: Species

Blank 2: Population

Blank 3: Community

The blanks can be explained as:

Deer's are organism that has similar characteristics and physical attributes and hence are grouped in species classification of taxonomy.

A group of species is called a population that interacts with the biotic and abiotic factors like trees, wolves etc.

The biotic and abiotic elements are part of the community or the ecosystem residing there. It makes up the food chain of the ecosystem.

Therefore, the blanks are species, population and community.

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Fats are major components of the cell’s ____. a. ​membranes b. cytoplasm​ c. ​DNA d. ribosomes​ e. ​proteins

Answers

Answer:

membranes

Explanation:

What kind of questions do biologists attempt to answer?

Answers

Explanation:

Biologists attempt to answer questions about the living world.

About the living world

What phrase describes a good scientific question? has a wide focus addresses a gap in knowledge does not lead to a testable hypothesis has a simple yes or no answer

Answers

Answer:

The correct answer is : addresses a gap in knowledge

Explanation:

A scientific question is an inquiry or question that may prompt a hypothesis and help us in explaining or the answering the reason behind the question by observation. A  hypothesis is a speculative, testable response to a scientific question.

A proper scientific question has certain qualities.  

It should be answerable but not in ye or no,  

It should lead to testable hypothesis

prompts a speculation that is falsifiable

should focus on only the one aspect that is asked

Thus, the correct answer is : addresses a gap in knowledge

Sample Question:
The different properties and functions of carbohydrates, and other biological molecules, is due to
what?
A.
Their structures.
B.
Where they are found.
C.
They are inorganic molecules.
D.
Their bonds.

Answers

Answer:

d. Their bonds

Explanation:

Answer:

Their bonds

Explanation:

How are casts formed by decaying organisms?
Organisms turn into rock over time.
Organisms leave carbon residue on a rock.
Organisms leave impressions in sediment that hardens into rock.
Impressions left by organisms are filled in with sediment that hardens into rock.

Answers

Answer:

d

explanation: took the test

Answer:

D.Impressions left by organisms are filled in with sediment that hardens into rock.

Explanation:

edg 2022

Use the drop-down menus to complete each sentence.
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.

Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as

Answers

Answer:

✔ Eukaryotes

are organisms that contain more than one cell with membrane-bound organelles and a nucleus.

Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as  

✔ prokaryotes

Explanation:

1. Eukaryote

2. Prokaryote

When cells in an organism associate with each other, they form
O macromolecules.
O molecules.
O populations.
O atoms.
O tissues.

Answers

Answer:

O molecules.

Explanation:

They are any of numerous substances that are produced by cells and living organisms

When cells in an organism associate with each other, they form tissue.

What is a cell?

Cells are the smallest, structural, and functional unit of life. It is the building block of an organism.

A tissue is a group of cells that have identical structures and that function together as a unit. When a number of cells in an organism associate with one another, they form tissues.

Therefore, when cells in an organism associate with each other, they form tissue.

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Which has the most direct impact on evaporation in the water cycle?
O A. pollution
O B. temperature
O c. deforestation
O D. ozone depletion

Answers

Answer:

O D. ozone depletion.

Explanation:

O D. ozone depletion

Suppose a doctor is asking whether eating carrots every day will improve his patients’ eyesight.

Answers

Answer:

No, that is just a myth. Carrots can provide vitamins, but not improve eyesight. Hope this helps!

Answer:

This is true but eating a lot of carrots can make your skin orange!

Explanation:

Threonine is a standard amino acid with a polar side chain.Identify the chiral centers in threonine. a. the carboxyl carbon b. the amino nitrogen c. carbon b d. carbon c e. carbon a

Answers

Answer:

Threonine has two chiral centers.

The correct options are c. carbon b and d. carbon c

Explanation:

Chiral centers are those that have four different groups of atoms bonded to it. Carbon a has three atoms of hydrogen attached to it so it can't be a chiral carbon. It isn't the carboxyl carbon either since it is double bonded to oxygen. And the amino nitrogen does not qualify anyway because it is bonded to three different groups of atoms, not four.

Which contributes to the polarity of a water molecule?

Answers

Each molecule attracts other water molecules because of the opposite charges between them which leads to forming hydrogen bonds. Hope this helped

If you have a vloume of 55l and a density of 2kg/l what is the mass

Answers

Answer:

110 kg

Explanation:

Density = Mass / Volume ===> Mass = Density x Volume

Now follow the given:

- Density = 2 kg/L or 2000 g/L

- Volume = 55 L

Apply the rule:

Mass = 55 L x 2 kg/L = 110 kg or 110000 g. ( Liters is cancelled by Liters).

Which trait does a virus exhibit? A- it evolves B- it uses energy C-it grows and develops D- it is made of cells

Answers

Answer:

A- it evolves

They even tend to evolve faster than their hosts the humans .

Explanation:

What is a Virus Quick Check

1. It evolves

2.Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.

3.A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.

4.The host cell is destroyed during the lytic cycle.

5.They should get the flu vaccine because viruses mutate.

I hope this helped!

What is blood plasma exactly? I get confused between interstitial fluid, blood plasma, an actual blood..

Answers

Answer:

Blood Plasma is the pale yellow fluid of the blood that consists of water and its dissolved constituents, including especially proteins (such as albumin, fibrinogen, and globulin).

Explanation:

Answer:

Blood plasma is a fluid in a blood that carries the blood components throughout the body. Plasma is the largest part of blood almost 55 percent, wen plasma separated from the body is lightly yellowish liquid. Plasma carries water, salt and enzymes.Te main role of the plasma is to carry nutrients ,and hormone, and proteins to the parts of the body that need it. Blood celss also put their waste in the plasma, the plasma helps remove the waste from the body. Blood plasma also helps carry all parts of the blood through circulatory system.

Define structuralism and functionalism and explain their similarities and differences.

Answers

Answer:-Structuralism is the field concerned with discovering the basic elements of consciousness and...

-Functionalism is the field concerned with how mental processes help organisms adapt to their environment.

-Wilhelm Wundt established structuralism; he broke down consciousness into its two basic elements- subjective feelings and objective sensations.

-William James established functionalism; James disagreed with the functionalists and believed that consciousness couldn't be broken down as structuralists believed because it was a continuous stream of consciousness.

-Similarities are that subjective feelings and objective sensations are included in a continuous stream of consciousness as well as many other things. Organisms can adapt to their environment by using their subjective feelings and objective sensations and thoughts in order to solve problems that occur in their environment.

If I put 1 mole of substance A and 2 moles of substance B into 1 liter of water, which
of the following best describes what I have made?
A. 3M solution
B. This is impossible to calculate with 2 solutes
C. moles can't be put in water or they will drown
D. 1M substance A and 2M substance B solution

Answers

Answer:

c.moles can't be put in water or they will drown

Explanation:

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!! I'M REALLY BEHIND ON MY ASSIGNMENTS, AND NEED THE CORRECT ANSWER.

Answers

The answer is fracture
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