How does the mother get nutrients and oxygen to the embryo?

Answers

Answer 1

Answer:

Oxygen and nutrients from the mother's blood are transferred across the placenta to the fetus through the umbilical cord. This enriched blood flows through the umbilical vein toward the baby's liver. There it moves through a shunt called the ductus venosus. This allows some of the blood to go to the liver.


Related Questions

Which statement is accurate about how the aurora borealis is formed?
When the electrons jump to a higher energy state, they release energy as electromagnetic radiation, light.

When electrons are excited, they move to a lower energy level.

An electron in an energy level closest to the nucleus has greater energy.

When the electrons fall to a lower energy state, they release energy as electromagnetic radiation, light.

Answers

Answer:

When the electrons jump to a higher energy state, they release energy as electromagnetic radiation, light.

Explanation:

When the solar wind gets past the magnetic field and travels towards the Earth, it runs into the atmosphere. As the protons and electrons from the solar wind hit the particles in the Earth's atmosphere, they release energy – and this is what causes the northern lights.

Can you please tell me the answer

Answers

Huh I wish I knew hope sb gives you the answer goodluck

Answer:

Explanation:

s=d/t

7.5 times 10^10/8.0 times 10^6=9.375 times 10^15

Hope this helps

Which of the following describes a lunar eclipse?
A
The Moon's shadow is on Earth.


B
Earth's shadow is on the Sun.


C
Earth's shadow is on the Moon.


D
The Moon's shadow is on the Sun.

Answers

Answer:

From our perspective on Earth, two types of eclipses occur: lunar, the blocking of the Moon by Earth's shadow, and solar, the obstruction of the Sun by the Moon. When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth.

Hopes this helps

Answer:

c

Explanation:

       when earth casts it shadow on moon then moon is not visible from earth.

and lunar eclipse occurs when earth casts its shadow on moon

importance of electric circuit​

Answers

Answer:

It is important because it carries useful energy through your house that you can use for a variety of tasks.

Explanation:

Hope this helped !

What is the elevation of point B?
What about F?

Answers

Explanation:

Since I can only do this by observation, the elevation of F is approximately 850km and the elevation of B is 925km.

help answer all for prize

Answers

Explanation:

Average speed =total distance ÷ total time

speed = d ÷ t

d= 74400

t= 16

then,

speed = 74400÷16

=4650

What's a refractive medium that focuses light to a single point?

Answers

Answer:

The convex lens is shaped so that all light rays that enter it parallel to its axis cross one another at a single point on the opposite side of the lens.

Explanation:

All of following are types of kinetic energy EXCEPT for: *
O sound energy
O thermal energy
Olight energy
O chemical energy
O mechanical energy

Answers

Light energy is not kinetic energy

A high speed train travels with an average speed of 227 km/h. The train travels for 2 h.how far does the train travel in meters?

Answers

2 x 227 km/h = 454 m

Answer:

[tex]\boxed {\boxed {\sf 454 \ kilometers}}[/tex]

Explanation:

Distance is the product of speed and time.

[tex]d=s*t[/tex]

The speed of the train is 227 kilometers per hour. The time is 2 hours.

[tex]s= 227 \ km/hr \\t= 2 \ hr[/tex]

Substitute the values into the formula.

[tex]d= 227 \ km/hr * 2 \ hr[/tex]

Multiply and note that the hours will cancel each other out.

[tex]d= 227 \ km* 2[/tex]

[tex]d=454 \ km[/tex]

The train travels 454 kilometers in 2 hours.

A 10-kg box Initially at rest and moves along a frictionless horizontal surface. A Horizontal force to the right as applied to the box. The magnitude of the box change of the function of time as shown

b. What is the velocity of the box at 10 seconds? Show your work.
c. If you want to apply at constant force starting at 10 seconds, that would stop the box at exactly 20 seconds. What would the magnitude and direction of that force be? Show your work

Answers

Answer:

b. 1.1 m/s c. -1.1 m/s

Explanation:

b.

m x v=f x t

The mass is 10 kg

10 x v (equation for momentum) = f x t (impulse)

you would find the impulse by finding the area under the graph, and then dividing by the mass

So in this case:

10 x v = 11

then divide by the mass

v = 11/10

v= 1.1 m/s

c.

F x t = impulse

we are trying to find force (magnitude)

impulse/t = F

we said that in order for it to stop the impulse for b would be 11, so if thats the case it would be 11 but it would be negative because when going in a positive direction and suddenly stopping the direction changes.

-11/t = F

to find t all we need to do is find the amount of seconds between 10 and 20, that would be 10.

-11/10 = F

F= -1.1 m/s

Answer B:

The velocity of the box at 10 seconds is :

Formula :

              m x v=f x t

Given Information :

Mass(m)=10kg

10 x v (equation for momentum) = f x t (impulse)10 x v = 11v = 11/10v= 1.1 m/s

Therefore, the velocity of the box at 10 seconds is 1.1m/s.

Answer C:

The magnitude and direction of that force be :

Formula:

F x t = impulse

impulse/t = F-11/t = F

To find t all we need to do is find the amount of seconds between 10 and 20, that would be 10.

-11/10 = FF= -1.1 m/s

The magnitude and direction of that force will be -1.1m/s.

Learn more :

https://brainly.com/question/2131553?referrer=searchResults

What is the value of the GPE store for a 10 kg object held 50 m above the surface of the Earth (assume g = 10 N/kg)?

Answers

Answer:

5,000J

Explanation:

GPE = mass x gravity x height

GPE = 10 x 10 x 50

= 5,000

Which of the following statements about gravity is FALSE?
B
A Gravity plays an important role in the formation of solar systems.
Gravity keeps the planets in their proper orbits around the Sun.
Stars are made of clouds of dust and gas that come together as a result
of gravity.
The Law of Universal Gravitation states that the gravitational force is
stronger as objects get farther apart.
с
D

Answers

Answer:

the last one. gravitational force is stronger as objects get further apart

The false statement about gravity among the given choices is - D. The Law of Universal Gravitation states that the gravitational force is  stronger as objects get farther apart.

Gravity or the universal gravitational force is the force of attraction exerts between any two objects with mass in the universe. It is also exerted between the attraction of the earth's mass and bodies with mass near its surface.

The universal gravitational force is inversely proportional to the square of the distance between any two objects,[tex]F = \frac{1}{r^2}[/tex]So, an increase in the distance will result in the force of gravitational attraction between them also decreases make it weaker.The universal gravitational force plays an important role in making the solar system by keeping the different planets in their proper orbits around the Sun.

Thus, The false statement about gravity among the given choices is - option D.

Learn more about the role of gravitational force:

https://brainly.com/question/13873024

2 forces of magnitude, 5N and 8N respectively act at the same point and are inclined at 45 degree. Calculate the magnitude of the resultant force

Answers

Answer:

F = 36.956 N

Explanation:

The magnitude of the resultant force will be;

F = F1 × F2 × cosθ.

We are given;

F1 = 5 N

F2 = 8 N

The angle between the 2 forces is 45°

Thus, angle between each force and the vertical axis is 45/2 = 22.5°

F = 5 × 8 × cos 22.5

F = 40 × 0.9239

F = 36.956 N

The speed of a sound wave depends on....
A: both the medium's temperature and the density of the medium
B: the density of the medium
C: the medium's temperature
D: the frequency

Answers

The answer you’re looking for is
D. the frequency
B: the density of the medium

Why do cells have receptors? Receptors make mRNA. Receptors let the cell know when to let things in and out of the cell. Receptors make spike proteins.

Answers

Answer: Cells have receptors because Receptors let the cell know when to let things in and out of the cell.

Explanation:

Cell receptors also called transmembrane receptors are proteins located on the surface of a cell (extracellularly) or inside the cell which receive signals that alters the functions of the cell. The functions of the cells which can be altered includes the alteration in gene transcription and the cell morphology.

Cell receptors are generally categorizes into the following groups:

--> Internal receptors

--> cell surface receptors

--> ion channel receptors

--> G protein coupled receptors

--> enzyme linked receptors

Interaction of cell membrane receptors with specific ligands that bonds to the receptors causes conformational changes in the receptor protein. This in turn, enzymatically activates the intracellular part of the protein or induces interactions between the receptor and the proteins in the cytoplasm that act as second messengers, thereby relaying the signal from the extracellular part of the receptor to the interior of the cell. This enables the cell to know when to let things in or out of it through the information conveyed.

WILL GIVE BRAINLIEST IF CORRECT
How much heat is needed to raise the temperature of 100 g of water by 50 K, if the specific heat of water is 4184 J/kg°K

Answers

Answer:

Q = 20900 [J]

Explanation:

We must use the following energy equation to determine heat transfer, based on specific heat, mass, and heat transfer.

[tex]Q=m*C_{p}*DT[/tex]

where:

Q = heat energy [J]

Cp = specific heat = 4184 [J/kg*K]

m = mass = 100 [g] = 0.1 [kg]

DT = temperature change = 50 [K]

[tex]Q= 0.1*4180*50\\Q=20900[J][/tex]  

In a perfectly elastic collision, a 0.400 kg ball moving toward the east at 3.7 m/s suddenly
collides head-on with a 0.200 kg ball sitting at rest.

Answers

Where is question bro give us questions

Convert 50,000 ML to mL
1. 5 x 10^5 mL
2. 5 x 10^-5 mL
3. 5 x 10^13 mL
4. 5 x 10^-13 mL

Answers

The answer is 1!

The answer is 1!

The answer is 1!

Mikael runs with a speed of 3 m/s for 45 seconds. How far does Mikael run?

Answers

Answer:

135

Explanation:

Multiply 3x45 So the overall answer is 135

Answer:

d-135m

Explanation:

A _______ is a series of waves that come ashore at interval 10-45 mintues​

Answers

Answer:

tsunami

Explanation:

A tsunami is a series of waves that come ashore at interval 10-45 mintues

Which of the following organisms is a decomposer?
a plant
a tiger
a mushroom
a deer

Answers

The answer for the following question is a mushroom.

What is a magnet in your own words

Answers

Metal things that pull together

Which statement is a conclusion ASAP

A. How can cut flowers stay fresh for a longer period of time ?

B. Florists put cut flowers in sugar water , so flowers in sugar water stay fresh longer

C. It´s better to give people balloons than cut flowers that will die

D. Cut flowers placed in sugar water stay fresh longer than flowers in regular water

Answers

d is the best option

plz help help me i have one minute​

Answers

Answer:

the answer is C

Explanation:

this is because pressure is defined as the force acting per unit area thus,

the lower the area the higher the pressure

this can be explained by This,

will you experience pain if touch the tip of the needle or your pen

the area in the needle is less thus, more pressure

hope this helps,

Two conducting spheres rest on insulating stands. Sphere B is smaller than Sphere A. Both spheres are initially uncharged and they are touching. A third conducting sphere, C, has a positive charge. It is brought close to (but not touching) Sphere B as shown. What is the net charge (positive, negative, or zero) on Sphere A?

Answers

Answer:

Explanation:

Sphere B and sphere A are touching so they will act as a single body . A positively charged sphere C is brought near sphere B . So there will be induction of charge on sphere B and sphere A . Opposite charge will be induced on nearer sphere and same charge will be induced on distant sphere . Hence sphere B will be negatively charged and sphere A will be positively charged. The amount of charge induced on sphere B and A will be same and it will remain as long as sphere C is kept near sphere B . As soon as sphere C is removed , induced charges will also neutralize each other .

The box is stationary

Answers

Answer:

I hope the answer below helps :

Explanation:

Let the tension force be T in the rope.

The downward forces acting on the system of the boy and the box are the weight of the boy and the weight of the box.

The upward forces are T and T on each side of the rope.

As the system is in a static equilibrium:

[tex]T+T=(10+45)kg \\\\=>T=55kg[/tex]

or  55g or

Newtons=550N ,  if g=10m/s  

The forces acting on the boy are: Tension T, reaction from the weighing machine, and weight 45 g.  So,

Normal−reaction of the weighing machine :

[tex]45-T\\45-55\\=-10[/tex]

(i)  The weighing machine shows its normal reaction force as the weight of the person standing on it.  So weight displayed =-10kg.

(ii) Suppose the man pulls down the rope with a force F and the tension becomes T.

The forces acting downwards on the rope at the two ends are:  F, weights of man and the box.  The upward forces are Tension T on each side of rope.

The system being in equilibrium:

[tex]2T=F+45kgf+10kgf\\=F+55kgf\\=T=45kgf+\frac{F}{2}[/tex]

=>  Normal reaction force from the weighing machine on the man

N=45+F−T=-10kgf+F/2

If N is to become 45kgf, then  F has to be 55kgf or 550N

Answer:

The reading on the scale is 539 N.

Explanation:

The given parameters include;

mass of the box, M₁ = 10 kgmass of the boy, M₂ = 45 kg

The reading on the scale = weight of the boy + weight of the box

                                           = M₂g + M₁g

                                           = g(M₂ + M₁)

where;

g is acceleration due to gravity = 9.8 m/s²

The reading on the scale is calculated as follows;

W = 9.8(45 + 10)

W = 9.8(55)

W = 539 N

Thus, the reading on the scale is 539 N.


1 method of producing AC electricity from a RENEWABLE resource and NON-RENEWABLE resource

Answers

Answer:

See the explanation below.

Explanation:

An example of renewable energy is wind energy, since the planet by means of pressure variations among other natural phenomena presents air currents that can rotate the propellers of energy-generating turbines. This energy is renewable because the wind is used as a source of this energy.

An example of non-renewable energy is oil as it has been formed by carbon-containing fossils that have remained in the Earth's layers for millions of years. It is a non-renewable source since the amount of oil is finished after its total extraction from one well and for the generation of another well will depend on geological processes that last millions of years.

The speed of sound in water is less than that in air. *
True
False​

Answers

Answer:

The speed of sound in water is two times slower than that in air. Sound travels much faster in space than in water. Warmer water allows sound to travel faster so i think true

Explanation:

An Indy 500 race car's velocity increases from 4.0 m/s to +36
m/s over a 4.0 s time interval. What is its average
acceleration?

Answers

Answer:

The average acceleration is [tex]8\ m/s^2[/tex]

Explanation:

Uniform Acceleration

When an object varies its velocity at the same rate, the acceleration is constant.

The relation between the initial and final speeds is:

[tex]v_f=v_o+a.t[/tex]

Where:

vf  = Final speed

vo = Initial speed

a   = Constant acceleration

t   = Elapsed time

The acceleration can be calculated by solving for a:

[tex]\displaystyle a=\frac{v_f-v_o}{t}[/tex]

The Indy 500 race car increases its speed from vo=4 m/s to vf=36 m/s in t=4 s. Thus, the average acceleration is:

[tex]\displaystyle a=\frac{36-4}{4}=8\ m/s^2[/tex]

The average acceleration is [tex]8\ m/s^2[/tex]

Isabella has lived in Miami, Florida, all her life, and she knows the weather is warm and humid much of the time. What factors play a part in determining the climate found in Florida? Choose the three that apply

A-Ocean currents
B-Latitude
C-High altitude
D-Prevailing winds
E-Long distance from water

Answers

Answer:

B,A, and D

Explanation:

Other Questions
Alicia is writing the program for a video game. For one part of the game, she uses the rule (x,y)(x7,y+2) to move points on the screen. What output does the rule give when the input is (4,6)? Show your work. What output does the rule give when the input is (2,9)? Show your work. What is the range of possible sizes for side x? the other two sides are 8.0 and 8.5 1. What are the problems/challenges encountered by Nanay Coring in her business? 2. What alternatives did Nanay Coring take when the business encountered problem? 3. What were the business opportunities she selected? Read the sentence. On Monday mornings, the anxious gardeners watch VERY CAREFULLY for the INCREASINGLY rare visits by the bees and other insects. Which of the all capital adverbs describe anothed adverb?increasinglycarefullyvery select the correct trigonometric ratios for angle 0 the equation 4(x+9)=76 models this situation which choice shows the sequence of operations neede to slove this problem using both arithmetic and algebra 1 pointA box weighing 12 Newtons is dragged across arough floor with a constant velocity of 1.4 metersper second. The horizontal applied force pullingthe box is 8.5 Newtons. What is the magnitude ofthe friction force the floor exerts on the box?Your answerPLEASE ANSWER How did the invention of the cotton gin impact Tennessee? number students who played football and rugby ratio is 4:3 Rugby and tennis ratio is 12:25 50 students picked tennis how many students pick footballQUICKKKKK HELP MEEE PLSSS 8 and 9This is referring to the 1968 and 1996 movies of Romeo and Juliet In Photosynthesis and Cellular Respiration, GA3P and water are reactants for: NISHISHIII Whoever answers correctly gets brainliest please help marking brainliest if it's correct The graph below shows the rate of alcoholic fermentation for yeast at different temperatures.Rate of Fermentation Versus Temperature100Rate ofFermentation5001020 30Temperature (C)40Which statement could explain the data shown in the graph?The molecules that regulate fermentation perform optimally at temperatures above 30 degrees Celsius.The yeast begins releasing carbon dioxide at 30 degrees Celsius.The yeast cannot survive above 30 degrees Celsius.The mecdes that regulate fermentation perform optimally at temperatures below 10 degrees Celsius.JESTOS The longest length side of an acute isosceles triangles is 12 centimeters. Rounded to the nearest tenth, what is the smallest possible length of one of the two congruent sides What were the results of the sinking of the Lusitania? 6. The Gonzales family has three children. On summer break, they went to an amusement park. They bought 3 child tickets for $ 18.50 and 2 adult tickets. If they spent a total of $104.50, how much was the price of each adult ticket? A. Underline the independent clause in each sentence below. 1. We arrived last because we couldn't find the theatre. 2. The play started before we found our seats. 3. We got one of the special programs that were being sold. 4. When the play was over, the audience applauded. 5. After we saw the show, we went for a walk. 6. Although the night was cool, the walk was enjoyable. 7. While we were walking, I noticed the moon. 8. Since it was a full moon, it was shining brightly. 9. We walked along the lake until it became very late. 10. By the time I got home, it was almost midnight. Which two characteristics of the city of Ur show that it has the unique features of a Mesopotamian civilization? A.remains of a city on land near the Tigris-Euphrates river systemB mentioned in the Old TestamentC irrigated agricultureD presence of clay tablets with cuneiformEdry, arid climate Why did the U.S. want to invade Mexico? Bob works for Allies Electronics making switches. He is paid $0.40 per switch. Last week he made 635 switches on regular time and 126 switches during overtime. Find his gross earnings for the week if time-and-a-half per switch is paid for overtime.