Help 20 points !
*This question is of 4 marks*
So please answer long.
Q. Describe the double circulation in human beings.​

Answers

Answer 1

Answer:Double circulation has two components, pulmonary circulation and systemic circulation. Pulmonary Circulation : It is movement of blood from heart to the lungs and back. Deoxygenated blood of the body enters the righ auricle, passes into righ ventricle which pumps it into pulmonary arch,...

Explanation:

Answer 2

Answer:

During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system more efficient and helps in maintaining constant body temperature.  During a single cycle, the blood goes twice in the heart. This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.

Explanation:

Hopefully this helps:)


Related Questions

this is the condition in which one living organism serves as a food source for another

Answers

Answer:

Producer

Explanation:

A producer provides food for other organisms and a consumer is an organism that eats the producer.

what do you think would happen if the AV node could no longer do it’s job? Explain how this would affect the contraction of the heart and movement of blood

Answers

Answer:who else is high rn

Explanation:

ifjoeisnbokfnkf

Leslie argues that an organism called a Euglena is a plant because it is eukaryotic, has a nucleus, makes its own food, and is unicellular.

Where is Leslie’s error?

Plants do not make their own food.
Plants are multicellular.
Plants are prokaryotic.
Plants do not have a nucleus.

Answers

Error: Plants are multicellular.
Explanation: Protoctists are known as the dustbin kingdom because they can’t be classified as plants, animals or fungi and they are mostly unicellular microorganisms. Some are known to be more plant-like while others are known to be more animal-like.Euglena is not a plant because it’s a plant-like protoctist.

Answer:

B. Plants are multicellular.

Explanation:

Which of the following year graphs represent hours of daylight and solar energy at 45° S?

Answers

Answer:

The answer is D

Explanation:

What two components are often found as part of a enzyme?

Answers

Answer:

2 main components of the reaction are the Enzyme and its substrate.

In a certain state, electricity is generated by using the earths heat. Wells drilled and natural steam is taken out through pipes. This natural steam powers the generator and the electricity generated. What type of energy is being used and what type of power plants are set up for harnessing this renewable energy?

Answers

Answer:

Geothermal

Explanation:

The geothermal energy is generated by the Earth's core that is a region with extremely high temperatures. The heat makes the geothermal power plants to work and thus generate energy from it.

Biogeochemical cycles _______.

Answers

Answer:a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth.

Explanation:

A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem

What is function of the cell membrane ?

Answers

The function of the cell membrane is to protect the cell from its surroundings, (kind of like a wall)

is the trans pecos ecoregion of texas considered a desert ? true or false

Answers

Answer:

false

Explanation:

the diagram shows three steps in the clotting process.
Which lists the clotting process in the proper order?
o А, С, В
ОВ, А, С
o С, А, В
е В, С, А​

Answers

Answer:

В, С, А​

Explanation:

The process of clotting is known as the hemostasis which takes place in three steps: the vascular spasm, the formation of a plug of platelets and the coagulation.

In the given question, step B shows the process of vascular spasm in which the vascular blood vessels becomes constricted due to injury. After this, the platelets present in the blood starts accumulating at the site of injury. These platelets stick together and form a plug-like structure at the site of injury.

Later, step A takes place that is fibrin protein present in the blood starts forming a mesh-like structure which does not allow the bleeding and this process is known as coagulation.

Thus, the selected option is the correct answer.

Why did the deer start to avoid certain areas of the park, like valleys and gorges?
a They could be trapped easily in those areas
b Their food source ran out of those areas
c Humans built shopping malls and tourist attractions in those areas
dThey did not avoid those areas, they flocked to them

Answers

Answer: A    I hope this helps

Explanation:

~+*PLEASE ANSWER ASAP! BRAINLIEST AND 20 PTS!*+~

How does reproductive isolation differ in sympatric modes and allopatric modes of speciation?

Answers

Answer:

In allopatric speciation the groups are reproductively isolated and diverge due to a geographic barrier. In sympatric speciation, reproductive isolation and divergence occur without geographic barriers, for example polyploidy.

"I hope and my information serves you"

Explanation:

Which one is the correct answer?

Answers

Answer:

pretty sure it is non contact forces

Explanation:

no touchy-touchy involved so yeah

Non contact forces is the answer of your question.

A non-contact force is a force which acts on an object without coming physically in contact with it. A non-contact force is a force applied on an object by another body without being in direct contact with the object.

Hope it will be helpful to you. ..


Body systems in the human body work together to support the essential life functions of the body. The urinary system interacts with the cardiovascular system in several significant ways. Which of these is NOT an accurate interaction between the two body systems?

A) The kidneys secrete an enzyme called rennin that helps control blood pressure.
Eliminate
B) The kidneys filter metabolic waste products and toxins from blood for excretion from the body in urine.
C) The kidneys excrete a great amount of sodium and water helping control sodium concentration and blood pressure.
D) The kidneys secrete erythropoietin, a hormone which stimulates the production of white blood cells in the body.

Answers

Answer:

a

Explanation:

the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin

Which technology collects Dara for weather, climate, and environmental monitoring from space?

Answers

Answer:

A partnership of NOAA, NASA and the U.S, Air Force, DSCOVR collects data on Earth's atmosphere and maintains real-time solar wind monitoring capabilities. With this information, NOAA generates space weather forecasts and alerts for events such as geomagnetic storms caused by changes in solar wind.

Explanation:

2. What are the two types of ecological succession?

Answers

Answer:

There are two main types of succession, primary and secondary. Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.

Explanation:

Answer:

Ecological succession is a process of change in ecosystems that takes place over time, and that we can observe both in time and in space. ... There are two types, the primary sequence and the secondary sequence.

"I hope it helps you it was a pleasure to help you".

Explanation:

What’s the meaning of existence

Answers

That which exists, a being, a creature, an entity.

Answer: Existence definition: The existence of something is the fact that it is present in the world as a real thing. Or The noun existence can be used many different ways, but it always has to do with being alive or with simply "being”.

Explanation:

Existence is the state of being alive or being real. For example, you and your best friend disagree about the existence of Bigfoot if you think it's real and your friend doesn't. Existence is the state of being alive or being real. For example, you and your best friend disagree about the existence of Bigfoot if you think it's real and your friend doesn't.

How can chemical differentiation be used to explain the distribution of elements on Earth OR within our solar system?

Answers

Answer:

Substances in nature rarely exist as single element but combination of more than one elements.

This combination of element is referred to as compounds.

These compounds can breakdown from temperature change or change in pressure and so on ,these atmospheric change exist in nature and with long climatic change over a period and could lead to elements recombining and could be transported to other areas from weathering.

Name the MAIN abiotic and biotic factors which affect prairie ecosystems
and describe their effects on those systems.

Answers

Answer:

Aboitic means non living and biotic means living.

Explanation:

For example a bench is aboitic because it is not living but once was. Something biotic would be grass because it is living presently.

what are the advantages of housing a telescope inside mountain of observatories?​

Answers

Mountain tops are high in the atmosphere, and there is less atmosphere above them, so it is easier to see stars with less atmosphere.

Plz help!! Which substance is most likely represented by y?

Answers

Answer:

glucose

Explanation:

x is carbon dioxide and y is glucose because it's the photosynthesis equation

Answer:

Glucose

Explanation:

The process that occurs in the chloroplast is called photosynthesis. Plants use this process to make food for themselves. This process is:

Carbon dioxide+ water + light energy —> oxygen and glucose

In the photo, we are looking for y. y is next to oxygen, so we can assume that y and oxygen are the products of photosynthesis.

The other product of photosynthesis is glucose.

Therefore, glucose is the correct answer.

How has shark skin been used to inspired materials that slide faster through the water?

Answers

Answer:

Shark skin has been used by many cultures as sandpaper. It's kept shipmates safe in slippery-when-wet conditions. Swimsuits modeled on shark skin are said by Speedo to reduce drag by up to 4 percent. Now, research by two separate groups could lead to synthetic shark skin that would make ships and submarines faster and less expensive to operate.

Describe how gravitropism in roots is different from gravitropism in shoots.

Answers

Answer:

Gravitropism is the movement or growth of a plant in response to gravity. ... Plant shoots demonstrate negative gravitropism since they grow in the opposite direction of gravity. Gravity is sensed by specialized cells called statocytes, which have statoliths that sink inside the cell.

Explanation:

The researcher had hypothesized that the addition of the vitamin that is similar in structure to NADH would increase the activity of the mutated NADH dehydrogenase enzyme in individuals with the disorder. Explain how the vitamin most likely increased the activity of the enzyme

Answers

Answer:

It is expected that the mutation helps the enzyme to bind to the vitamin, and this interaction may be necessary to maintain the activated state of the enzyme.

Explanation:

The NADH dehydrogenase converts nicotinamide adenine dinucleotide (NAD) from its reduced form (NADH) to the oxidized NAD+, thereby this enzyme is required for generating ATP by electron transport.

(a) If a particular gene is located on the Z chromosome of this lizard species, describe why a lizard with a ZW genotype has a greater probability of expressing the recessive phenotype for the trait than a lizard with the ZZ genotype does.

Answers

Answer:

If there is no dominant allele for a trait present on a homologous chromosome to mask the recessive allele, the recessive phenotype will be expressed. In this case, the gene is located on the Z chromosome. In an individual with a ZW genotype (female) there is no homologous Z partner, meaning whatever allele is present on the solitary Z chromosome will be expressed.

Explanation:

Which physical structures are present in amphibians, but not in reptiles, when they first hatch?

Answers

Answer:

As compared to reptiles, amphibians have smooth skin. The skin of most amphibians is not water-proof unlike reptiles. Although most of the amphibians have lungs, they usually breathe through their skin and lining of their mouth, whereas most reptiles do not.

Explanation:

If your looking for an answer on edge, the correct answer is C) gills and fins

I hope this was helpful :D

STAY SAFE!!!!!!!!!!!!!!

Help, a very strong form of cocaine is ______.

Answers

Answer:

baking soda

Explanation:

None I hope this helps you

the following facts are true about resource A


. it grows in nature and takes about five years to reach a mature size.

.it can be replanted after it is cut down

resource A is most likely an.

A. inexhaustible resource

B. nonrenewable resource

C. recycled material

D. renewable resource​

Answers

Answer:

Option D, renewable resource

Explanation:

A renewable resource is the resource  which can be replenished after every use. Or in general the time taken by it to replenish must be small. For instance, fossil fuels too are renewable but the time taken by them to renew is too high and hence they are also considered as non-renewable.  

Also renewable resources can be used again and again.  

Hence, option D is correct

Approximately how many elements are there that combine chemically in a great number of ways to produce compounds?A.25B.50C.75D.100 plssss help meee

Answers

Answer:

D.100

Explanation:

There are A lot so 100 is the most.

Answer:

The structures of chemical compounds are influenced by complex factors, such as bond angles and bond length.All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.

A formula shows the types of elements present and the proportion of each element ... microbe or a multicellular animal or plant, can be compared with a chemical factory. ... In many living organisms, the elements carbon, hydrogen, and oxygen are ... The various elements can combine to form a great number of compounds.

Explanation:

Atoms are the smallest particles of matter that can enter into chemical reactions. ... The mass number of the most abundant isotope of any element is determined by ... Compounds with a significant percent of polar covalent bonds are called polar ... Fatty acids are organic acids that have very long hydrocarbon chains making. HOPE THIS HELPS!!


What is the branch of earth science that puts past events on earth in order by time?
A) geology
B) geography
C) ecology
D) chronology

Answers

Answer: C

Hope this helps

Answer:

(c) ecology

Explanation:

Other Questions
WHAT COULD BE THE AREA OF THE BASE OF THE TRIANGULAR PRISM? Length 5ftOther height5ft Length 4ft Height 3ft What is one of the Miskitos' main characteristics? they eat people they have their own travel agency they do not leave their village they have a exclusive parachute club How Do I type a fraction on my computer and NOT the / sign What event allowed a large ,centralized empire to form on the Indian subcontinent 25) Which BEST describes a common human experience as a theme of thisreading selection?The main character feels jealous of someone else'sshoes.The main character feels pride in performing menialtasks.The main character feels jealous of someone whoperforms a task well.The main character hopes that the team will be leftwithout its star player. Gradually you notice that the large chamber walls seem to be closing in. You hear a thundering boom, and the whole chamber vibrates as the valve slams shut above you. The cords, now rigid and strained, form a cage about you, and you feel extreme pressure. Obviously, the lower chambers of the heart are in a full-fledged _____5______. Then, high above on the right, the "roof" opens, and you are forced through another valve which has led you into a very large artery. As you are swept along in a huge artery(the largest artery in the body), the____6_____, you pass several branch-off points, but continue to careen (fall) along, straight down at a dizzying speed until you approach the artery feeding the small intestine. After entering this artery and passing through successively smaller and smaller subdivisions of it, you finally reach the smallest blood vessels the_____7_______. You watch with fascination as nutrient molecules move into the blood through the single layer of ______8______(look at power point notes) cells forming the capillary (blood vessel) wall. As you move forward and you begin to move superiorly (up) once again, you enter the huge_______9______, which returns blood from the lower part of the body to the_______10_______of the heart. From here, you move consecutively through the right chambers of the heart into the_______11______artery, which carries you to the _____12_____to get ______13______and then back to the left side of the heart again where you started Carbon is an organic element found in all life forms. Which of the followingoccurs through the process of breaking down carbon-based molecules?Water molecules are transferred through the body.Elimination of waste products occurs.Energy needed for life functions is releasedAbsorbing of oxygen through pore occurs. Book 8 of odyssey is titled A day for song and contest, why does homer include this section as part of the epic? A. To show the reader that homer is a good storyteller B. To allow the reader to understand Odysseus full experience C. To show the reader the talents Odysseus possesses D.To make the tale long enough to be considered an epic Which statement best defines theme?A.the details of a plotB.the subject of a literary workC.the underlying conflict in a storyD.the author's message, idea, or opinion -189=4x-3(-4x+15) help me i need help badly 2.Why is standardized methodology needed for moisture content determinations Brian is ordering books online. He has $100 to spend on the books. Each book costs $7. The shipping charge for the entire order is $8. Thenumber of books, b, that Brian can buy is represented by the inequality 7b+8 < 100. How many books can Brian buy without overspending? In the space below, list five potential topics for your research paper. For each of thesetopics, write down one big question that you want to answer in your paper. Equipment purchased at the beginning of the fiscal year for $360,000 is expected to have a useful life of five years, or 14,000 operating hours, and a residual value of $10,000. Compute the depreciation for the first and second years of use by each of the following methods. a. Straight-line: First year $ Second year $ b. Units-of-activity (1,200 hours first year; 2,250 hours second year): First year $ Second year $ c. Double-declining-balance: First year $ Second year $ What does paragraphs 4 and 5 tell the reader about the young sculptor?He is very serious about his art.He enjoys the baker's daughter.He parties too much.His friends are jealous of his talent. What is the axis of symmetry for the function f(x)=7-4x+x2?X=-3x = -2x = 2x= 3 Question 1 of 102 PointsAn engineering team is conducting a wind tunnel test to examine theaerodynamics of a car it has designed. Which part of the engineering processis the team in?O A. Do the work.O B. Evaluate the results.O C. Improve and redesign.D. Identify a need.SUBMIT What is Daisy telling us about Gatsby when she mentions never seeing such beautiful shirts before? (It has something to do with her husband, Tom) Find the axis of symmetry and the vertex of the graph of f(x)=x^2+8x+10 summary of Unhappy India