In the heart the mixing of oxygen-rich and oxygen-poor blood is prevented by the.

Answers

Answer 1

Answer:

By a muscular wall that prevents blood without oxygen from mixing with the blood that has oxygen.

Explanation:

hope this helps


Related Questions

What is the most likely reason the bones of the reptiles were found on more than one continent

Answers

Answer: Plate Tectonics

Explanation:

All correct EXCEPT: of the following statements concerning characteristics of predator-prey relationships are A. A rise in the population of prey is often followed by a rise in the population of predators. B. A rise in the population of predators is followed by a decrease in the population of prey. C. Camouflageisanadaptationthatprotectsprey. D. Theproductionoflargenumbersofoffspringwithinveryshortperiodsoftimeensures the survival of some prey populations. E. The population of predators most often eliminates the population of prey.

Answers

Answer:

are A. A rise in the population of prey is often followed by a rise in the population of predators.

If a gray fly is crossed with a heterozygous black fly, which combination below represents the parental cross?

Answers

Answer:

hello your question lacks the required options hence I will give you a  general answer

answer :  gg ( gray fly )  * Gg ( heterozygous black fly )

Explanation:

Let black body ( G ) be the dominant allele to gray body ( g )

hence the possible combination that will represent a parental cross when a gray fly is crossed with a heterozygous Black fly will be

gg ( gray fly )  * Gg ( heterozygous black fly )

How does the tilt of a planet affect its temperature?

Answers

During summertime in the Northern Hemisphere, Earth is tilted so that the Northern Hemisphere is angled more directly at the sun. It receives more direct sunlight and is warmer.

No matter what phase water is in, the water molecules stay the same; they just move differently.”
Explain why this evidence matters:

Answers

Answer:

Think about how the water cycle works etiher look in a tetbook or something

Explanation:

What are the possible genotypes for blood type of the offspring of two parents, one with blood type O and one with blood type AB?

Answers

Answer:

The possible genotypes are A and B

Explanation:

When does molecular breeding give an important advantage over conventional breeding, and how can we exploit this?

Answers

Answer:

molecular breeding accelerates the times for genetic improvement  

Explanation:

Molecular breeding refers to the techniques used in molecular biology to improve phenotypic features in plants and animals of agronomic and economic interest. Molecular breeding involves many diverse molecular techniques which include, among others, selection assisted by molecular markers (MAS), genome editing techniques (e.g., the CRISPR-Cas genome editing system), quantitative trait loci (QTL) mapping, gene introgression assisted by markers, etc. These techniques can dramatically accelerate breeding programs aimed at improving plant/animal traits and, therefore, they have a fundamental advantage with respect to conventional breeding methods.

PLEASE HELP I WILL MARK BRAINLIEST‼️
EXTRA POINTS‼️‼️‼️

Answers

Answer:

7,600 > 760 > 76 > 7.6

REEEEEEEEEEEEEEEEEEE PLEASE HELP MEEEEEEEEEEEEEEEE

Answers

Answer:

The answer is D

Explanation:

This is because the markup percentage of the price of riding busses mean that less people will ride it and the bus will be less active.

What type of trait is the body length?

Answers

The type of trait the body length is, is polygenic

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what types of of chromosomes are about the same size and contain the same type of genes?


A. Homologous chromosomes
Or
B. Analogous chromosomes
Or
C. Sister chromosomes

Answers

Answer:

Homologous chromosomes

Explanation:

Homologous chromosomes are chromosomes which contain the same genes in the same order along their chromosomal arms.

Which of the following kingdoms does NOT have members who are heterotrophic? A. Fungi B. Animalia C. Plants D. Protista (Dont send me a file)

Answers

Answer:

Plants

Explanation:

This is because plants kingdom are autotrophic that they are producers.

Plants kingdom are producers because the photosynthesized. The have chlorophyll which trap light energy from the sun and uses carbondioxide and water to produce carbohydrates and oxygen is released. Therefore they are not heterotrophic, they did not depend on other kingdom to feed...they are primary producers.

Plz help!! Will mark brainliest

Answers

Answer:

64

Explanation:

8 x 8

Answer:

the area should be 64 because area is length x width, so 8x8=64

The neurons that send signals from the brain to the body muscles are motor neurons
true or false ​

Answers

Answer:

true

Explanation:

I know when a hot surface is touch receptors in the hand send a signal to the nervous system the nervous system then sent a signal to the musculine and the arm to contract and move the hand from the hot surface which of these best describes this example

Answers


a behavioral response requires coordination and communication between different parts of the body.
hope this helps!

1.-¿Esta será la primera vez que ocurre una pandemia en la humanidad?

2.-¿Cómo habrán enfrentado las personas situaciones parecidas en años pasados?

3.-¿Por qué tendríamos que hacer caso a las recomendaciones de los científicos?

Answers

Explanation:

1.-¿Es la primera vez que ocurre una pandemia en la humanidad?

La pandemia de coronavirus no es la primera pandemia que enfrenta la humanidad, a lo largo de la historia se han registrado varias pandemias, como la Peste Negra, una pandemia que ocurrió en Europa en el siglo XIV y mató a aproximadamente 200 millones de personas.

2.-¿Cómo se habrá enfrentado la gente a situaciones similares en los últimos años?

Cada pandemia que enfrenta el mundo ha traído nuevas lecciones y descubrimientos científicos sobre cómo reducir los impactos provocados por la enfermedad y nuevas formas de tratamiento como los medicamentos y las vacunas, que hasta el día de hoy tienen un impacto positivo y benefician a las generaciones actuales.

3.-¿Por qué debemos seguir las recomendaciones de los científicos?

Es fundamental seguir las recomendaciones de los científicos para contener un virus contagioso, pues a través de la ciencia se descubre cómo actúa el virus en el cuerpo humano, cómo se produce el contagio, cuáles son las mejores formas de prevención, etc.

La ciencia es fundamental para la humanidad, a través de estudios y evidencias científicas, el ser humano logra soluciones a problemas que impactan en la vida de las personas.

Which action would most likely create a light wave ?


A- pouring water into a pile of dirt

B- hitting a drum with a drumstick

C- producing a fire from fuel

D- dropping a pebble in a pond

Answers

The answer that h are looking for is c

Energy that comes from the Sun
1. chlorophyll 2.Photosynthesis
3.Radiant energy
4.Phytoplankton

Answers

Answer:

2

Explanation:

Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants.

A brother and sister are fighting over a toy. The brother pulls the toy with a force of 6N
while the sister pulls back with a force of 8 N. What is the net force? Who gets the toy?

Answers

Answer:

the sister wins of course since she is pulling with a stronger force

Explanation:

net force

8n-6n=

2N

................waves are the slowest and most damaging, capable of crumbling buildings.

Answers

Answer:

tsunami

Explanation:

It's tusunami waves

Answer:

S-Waves or Surface Waves

Explanation:

(13) Which part of the digestive system is mainly responsible for absorbing water?
A the large intestine
B the pancreas
C the small intestine
D the stomach

Answers

Answer:

C) the large intestine

Explanation:

95% of absorption of nutrients occurs in the small intestine. Water and minerals are reabsorbed back into the blood in the colon (large intestine) where the pH is slightly acidic about 5.6 ~ 6.9.

Pls brainliest.

which of these cells is the odd one out?: human skill cell, fungi cell, a or bacteria cell?

Answers

The answer is fungi cell because they belong to plants and the other to animals

EMERGENCY!!!!!  what amino acid causes sickle cell anemia?!!!!!??

Answers

Answer:

hemoglobin

Explanation:

The transport of water through a plant depends on roots absorbing water. Roots depend on osmosis to obtain water. In osmosis, water always a. Moves from a high concentration to a lower concentration b. Moves from a lower concentration to a higher concentration c. Moves so that the concentration of water on one side of the cell membrane is higher than on the other side d. Moves until there is no water left on one side of the cell membrane

Answers

A. Moves from high concentration to lower concentration

Which of the following is an example of microevolution?
A. the formation of four new species of fish in a lake over thousands of years
B. a mass extinction that occurs because of major environmental changes in a habitat
C. a change in the frequency of body color in a species of beetle over time
D. the formation of two new species of rodent that have been isolated by a mountain range

no scammers!!! please please help

Answers

Answer:

chuapamimuñe putito44444444

Answer:

It would be C

Explanation:

Because the colour of a beetle is affected by the allele frequency and therefore changes in alleles as a result of mutations as a result of most likely adaptation

What is true of the genetic makeup of all body cells in the human body except for sex cells?

Answers

Answer:

It is the same no matter what the cell type. It is random even within the same cell type. It is used to sort cells into organs based on chromosomal differences.

Explanation:

How many copies of each chromosome do you have?

Answers

Answer:

2

Explanation:

Answer is 2....znskskskskskndk

Answer:

We all have two copies of every chromosome (except males who have one X and one Y plus 22 other pairs). Mom and dad give us copies of half their DNA -- one of each chromosome. At the end, we all have two copies of each of our chromosomes just like mom and dad

How does nectar increase the ability of plants to reproduce?

Answers

Answer:

get pollen from one flower to another

Creatures like hummingbirds eat nectar. When they go to eat nectar, pollen get stuck on them so when they fly to new locations, hummingbirds act like bees, carrying pollen to new locations where it can make new plants.

Which of the following illustrates the energy transformation that occurs during photosynthesis

A Electrical to Leaf to thermal energy
B Chemical energy to leaf to mechanical energy
C Light energy to leaf to chemical energy
D Thermal energy to leaf to light energy

Answers

C is the answer have a great day

Answer: B

Explanation: light energy is converted to chemical energy

The electron transport chain produces much more ATP than glycolysis or the Krebs Cycle but it needs them to happen in order to take place. How do the first two steps make the last one possible?

Answers

Answer:

there is a link

Explanation:

glycolysis produces pyruvate which feeds into the krebs cycle

krebs cycle also generates redox agents(NADH and FADH2) needed in the etc

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Please help also how did u get ur answerYour friends are purchasing a house for $182,000.If they put 20% down, how much will they borrow for their mortgage? The bank agreed to an APR of 3.15% for a 15 year mortgage. According to Excel, the monthly mortgage payment would be $1016.02. If your friends accept this loan, how much will they pay in total over the lifetime of the loan?How much would be paid on interest over the life of the loan? Which statement(s) most directly apply to communism?I. There is little or no private ownership.II. Businesses are operated for the benefit of the people as a whole.III. Individuals who take risks can gain great profits.a.I and IIb.II onlyc.II and IIId.I and IIIPlease select the best answer from the choices providedABCD Alfredo tiene 36 cromos ms que Ivn, y si comprar 10 ms , tendra el triple . Cuantos cromos tiene cada uno? PLS HELP!!!T:Have tailt:no tail -what percent of offspring will have a tail?- Round the following number to 3 significant figures:15937pls helpppp Which subgenre is NOT based in real life?biographyautobiographyfairy taleTall tale Help me please. Im having trouble. NO SCAM LINKS. Instructions: Please make sure that you show all your work when solving the problems. Feel free to make any assumptions whenever you feel necessary. Just make sure that you clearly state your assumptions.Analysts expect MC, Co. to maintain a dividend payout ratio of 35% and enjoy an expected growth rate of 12% per year for the next 5 years. After the fifth year, all earnings will be paid out as dividends. The required rate of return on MC, Co equity is 8%.a. Given that the last dividend paid was $0.5 and the current market price of the stock is $15, what growth rate does the market expect for MC, Co?b. At what price would the analysts value the stock under their own expectations?c. Suppose 5 years have gone by and the company has to make a decision on how to move forward. It can either pay out all earnings as dividends without considering any growth opportunities, or choose a growth strategy where the company will expand into new lines of business in global markets. If the management chooses this strategy, the payout ratio will be reduced down to 20% from 35%, and the company will be able to maintain a growth rate of 7% forever. Which strategy should the management choose to maximize shareholder value? Design a counter that counts the following sequence of 2-0-1-3 and repeat. estimate the following sum by rounding each number to the nearest 10plz Which sensory receptor is found in the skin? Earths________ change in a yearly cycle because of the tilt of its rotation axis and Earths________ around the Sun. 5. Find the missing reference angle using arcsin, arccos, or arc tangent. (Round tothe nearest whole number)144850Your answer This force will cause the path of the particle to curve. Therefore, at a later time, the direction of the force will ____________. This force will cause the path of the particle to curve. Therefore, at a later time, the direction of the force will ____________. have a component along the direction of motion remain perpendicular to the direction of motion have a component against the direction of motion first have a component along the direction of motion; then against it; then along it; etc. What is the range of y = csc^-1(x) ? who ever gets this will get a brainlest Black history back then please help and alot of points Read the poem entitled "The Poison Tree" by William Blake.I was angry with my friend:I told my wrath, my wrath did end.I was angry with my foe:I told it not, my wrath did grow.And I watered it in fearsNight and morning with my tears,And I sunned it with smilesAnd with soft deceitful wiles.And it grew both day and night,Till it bore an apple bright,And my foe beheld it shine,And he knew that it was mine, And into my garden stoleWhen the night had veiled the pole;In the morning, glad, I seeMy foe outstretched beneath the tree.Which statement best describes the poems use of language?Blake uses images of plants to show natures bounty.Blake reveals emotions being cultivated like a garden.Blake presents ripe fruit to question the duration of beauty.Blake explains the planting process to suggest mans hard work. The mean price of computers sold at a particular store is $949 with a standard deviation of $75. The z-score of a certain computer is -0.8. What is the price of the computer? What did Charles Dickens invent and what is it used for?