dentify the structure of the human heart which is a large vein (right and left branches) that carries oxygenated blood from the lungs to the left atrium of the heart

Answers

Answer 1
The vein being described is pulmonary vein. Veins are blood vessels that carry deoxygenated blood to the heart from all the body parts. However, pulmonary vein carries oxygenated blood from the lungs to the heart, so as to be pumped to the other body tissues through the aorta.It carries oxygenated blood from the lungs into the left atrium where it is returned to systemic circulation. 

Related Questions

Which part of the cerebral cortex is most important for a sense of touch?

Answers

the part of the cerebral cortex is cerebellum

Jewish americans are concentrated in the metropolitan area of

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Jewish Americans are mostly concentrated in the metropolitan area of New York City. Big portion of them are descendants of the German Jews, some of which came in the late 19th century, while others after the World War II. Most of them were highly educated, so New York City was a nice place for an educated person with a sense for economics to prosper.

Answer: New York, Los Angeles, & Miami

First Jews who migrated to America as early as 1933 were from Spain and Portugal. They arrived in the US as refugees. The Ashkenazi Jews comprise the vast majority of American Jews who settled first in and around New York City; in recent decades have moved to Miami, Los Angeles and other large areas in the South and West. The number of American Jews are estimated at 6.4 million (almost 39% of the Jewish population) and approximately 2.1% of the total population of US.

Which purposes do ngos serve with regard to human rights issues? select all that apply?

Answers

Mobilizing Public Opinion, Monitoring potential problems, reporting violations


mobilizing public opinionmonitoring potential problemsand reporting violations

Having a thick cartilaginous plate between two longitudinal bones is a characteristic of which age group?

a. an old person
b. a child
c. a middle aged person

Answers

the answer choice (B) a Child.
its because where longitudinal growth of a long bone occurred during the growth period.

The polar head of a phospholipid is made of _______ molecules. phosphate protein fatty acid carbohydrate

Answers

The polar head of a phospholipid is made of phosphate. The polar head has a negative charge that is made up of phosphate molecules. This polar region attracts water and is positioned outward to interact with the water. 

I hope this helps!

The polar head of a phospholipid is made of phosphate molecules.

What are function of phospholipid ?

A phospholipid is a large class of fatlike, phosphorus-containing biomolecule which are critical structural and metabolic component of living cell.

It is made up of a phosphate group, two alcohols, and one or two fatty acids.

One end has a phosphate group and one alcohol called as polar end or hydrophilic end has electric charge and attracts water.

Another end of fatty acids are non polar or hydrophobic and water-insoluble. so Phospholipids are amphipathic nature.

These are up two types such as glycerophospholipids are called as membrane phospholipid, origin is glycerol.

Sphingo-phospholipids are the components of myelin and can be present in nervous system. It's composed of sphingosine and alcohol.

It maintain membrane permeability and fat absorption from the gut.

It prevent fat formation in the liver and crucial for transfer and elimination of cholesterol from cells.

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Which letter represents an organism that could only be a primary consumer?

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Primary consumers are represented with a “C.”

A student added an enzyme to a flask containing a substrate and placed the mixture over a flame. She observed the reaction for a few minutes when she noticed that the reaction appeared to have stopped. She was puzzled because there was still a large amount of substrate left in the reaction flask. A pH test confirmed that the pH of the solution was in an acceptable range. Which is the most likely explanation for the decreased reaction rate?

Answers

The reason should be denaturing of the active site of the enzyme.

The rate of the enzymic reaction depends on pH, concentration of substrate, enzyme molecule concentration and the temperature. With the increase of temperature, the rate of the enzymic reaction also increases.  But this only happens up to a certain point. After a certain temperature, the rate becomes to decrease and eventually will stop. This is because denaturing of the enzyme. Although other factors are perfect, the high temperature causes to break down of bond interactions and hence the active site will be changed. If the active site of an enzyme changed, then substrate cannot bind with that enzyme anymore.
The temperature which the rate of the reaction is maximum is called optimum temperature and it normally around 40°C. This can be varied from enzyme to enzyme

Which organelle does protein synthesis

Answers

Protein synthesis is in the ribosome.  Or, occurs in the ribosomes.

Hope helps-Aparri

Answer:

The answer is Ribosomes.

Explanation:

Ribosomes are supramolecular complexes of proteins and ribonucleic acid, present in all cells. Ribosomes are organelles of the cytoplasm of a cell are composed of water, proteins and RNA, and whose function is to participate in the synthesis or manufacture of proteins from the information contained in the DNA, which arrives transcribed to ribosomes in the form of RNA messenger (mRNA).

Studies reveal that ventilation drifts upward during constant-load submaximal exercise performed in a hot and humid environment. this is likely due to

Answers

The answer would be; a significant increase in blood temperature.

The muscle contraction from exercise will produce heat that will increase the body temperature. In a hot and humid condition, this will make the body temperature hard to be lowered. The increase of blood temperature will influence the respiratory control center, makes the respiration drift upward.

Once uterine contractions have begun the female body releases several hormones that act in a positive feedback loop. the purpose of this feedback loop is

Answers

The purpose of this feedback would be to deliver the baby.

Uterine contraction will cause the release of oxytocin that in turn will increase the uterine contraction too. This mechanism is called positive feedback because the effect will keep increasing as the time pass. This mechanism will be over when the objective is completed, in this case when the baby delivered. 

If the sequence of bases in one strand of dna is tagcct, then the sequence of bases in the other strand will be

Answers

the sequence of bases in the other strand will be ATCGGA

Final answer:

The sequence of bases in the complementary DNA strand to TAGCCT is ATCGGA, following the base pairing rules where A pairs with T, and C pairs with G, and considering that DNA strands are antiparallel.

Explanation:

Given the sequence of bases in one strand of DNA as TAGCCT, we can determine the sequence of bases in the complementary strand by understanding base pairing rules. In DNA, the bases pair up according to specific rules where adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). The two strands of DNA are antiparallel, which means they run in opposite directions, with one strand running in the 5'-3' direction and the complementary strand running in the 3'-5' direction.

Therefore, to get the sequence of the opposite strand running from 5' to 3', we'll reverse complement each nucleotide of the given sequence:

Thymine (T) would pair with adenine (A)Adenine (A) pairs with thymine (T)Guanine (G) pairs with cytosine (C)Cytosine (C) pairs with guanine (G)Thymine (T) would pair with adenine (A)

Thus, the complementary sequence to TAGCCT running 5'-3' is ATCGGA.

What is carbon dioxide used for in the chloroplasts of green plants?

Answers

In plants carbon dioxide is reduced into simple carbohydrates (e.g. glucose) with energy absorbed from the sun within the chloroplast.

This is also known as photosynthesis.

Hope this helps!

The carbon dioxide in the chloroplasts of green plants is used for photosynthesis.

Plants are called primary producers because they are able to harness the energy from the sun in making their own food via a complex process called photosynthesis.

During photosynthesis, energy from the sun is used to combine carbon dioxide and water in order to form glucose. The glucose units join together to form a complex molecule called starch.

The starch is broken down in animals when they eat plants to produce energy.

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Which cells below possess unlimited proliferation potential, have the capacity to produce more of themselves and can give rise to all of the cells of the tissue? stem cells progenitor cells differentiated end products of a tissue anatomical cells?

Answers

This refers to stem cells.

Respiratory organs have large surface areas. how is this an advantage to an animal?

Answers

Final answer:

The large surface area of respiratory organs such as lungs and gills in animals is an advantage as it allows for efficient gas exchange of oxygen and carbon dioxide, which is essential for survival, particularly in larger or more active animals that have high oxygen demands.

Explanation:

The high surface area of respiratory organs is crucial for ensuring efficient gas exchange. In larger animals, specialized organs such as lungs, gills, and intestines have evolved to increase the surface available for the exchange of oxygen (O₂) and carbon dioxide (CO₂). This large surface area, akin to the size of a handball court, enables effective intake of oxygen required for cellular processes.

In addition, complex organisms often possess a sophisticated circulatory system to transport gases from these respiratory surfaces to the cells throughout the body. For instance, the human lung contains numerous alveoli and alveolar sacs that significantly increase the surface area for gas exchange, critical for meeting the oxygen demands of the body, especially in high-energy consuming activities like flight.

The organ that provides mechanical protection and nutritional support for the developing embryo is the select one:
a. vagina.
b. uterus.
c. cervix.
d. uterine tube.

Answers

The right option is b. uterus

Uterus is the organ that provides mechanical protection and nutritional support for the developing embryo. Uterus is an organ in the female reproductive system in which a baby is conceived and develops until birth. The uterus’s main function is to hold, protect and nourish a fetus until it is ready for birth.






Select the reason inhalants are most likely abused.

Answers

Answer: They are readily available

Explanation:

Final answer:

Inhalants are most likely abused due to their accessibility, low cost, the lack of stigma associated with their use, and the quick, intense high they offer. They are common household items that when inhaled, provide effects similar to alcohol, a factor that also contributes to their abuse.

Explanation:

Inhalants are most likely abused for a multitude of reasons, primary among them being their ease of accessibility and the quick, intense high they provide. Inhalants are usually common household items like glue, paint thinners and hairspray, making them readily available and easy to acquire. Further, they are inexpensive and often not seen as 'drugs' in the traditional sense, reducing the stigma associated with their use.

When these substances are inhaled, they produce effects similar to alcohol, such as feeling euphoric, lightheaded, and experiencing hallucinations. The effects are immediate and intense but short-lived, often leading to repeated abuse in quick succession.

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Cells harvest energy from food molecules by _____. photosynthesis respiration fermentation the Calvin cycle

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Cells harvest energy from food molecules through the process of cellular respiration. Therefore, option B is correct.

What is cellular respiration?

Cellular respiration is the process by which cells convert glucose and oxygen into energy in the form of ATP (adenosine triphosphate). It is a metabolic process that occurs in both plants and animals and is essential for the survival and functioning of cells.

The process of cellular respiration involves three main stages: glycolysis, the Krebs cycle, and the electron transport chain. During glycolysis, glucose is broken down into two molecules of pyruvate, which are then converted into acetyl CoA and enter the Krebs cycle.

The Krebs cycle generates ATP through a series of chemical reactions. The electron transport chain uses the energy from these reactions to create a proton gradient, which is used to produce additional ATP. Therefore, option B is correct.

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The health care environment can be very stressful for a client. during an orientation session of nursing students, the nursing instructor teaches students how to minimize a stressful environment. which statements from the students indicate the teaching was effective? select all that apply.

Answers

remember to stay calm and collected, and keep personal feelings/emotions in check

What instrument enables the observer to view binocularly the conjunctiva, sclera, cornea, iris, anterior chamber, lens, and anterior portion of the vitreous?

Answers

The slit lamp biomicroscope is an instrument that enables the observer to view binocularly the conjunctiva, sclera, cornea, iris, anterior chamber, lens, and anterior portion of the vitreous. This instrument provides a magnified image and gives detailed screening of the eye. The slit lamp consists of four important parts which are viewing arm, illuminating arm, patient positioning frame and the base.






Why do you think some zoonotic diseases have been used for bioterrorism throughout history?

Answers

Zoonotic disease is hard to treat and most of them fatal. Zoonotic disease also easily spread so it could kill many people in short time. Since the disease could also be carried by animals so it is hard to be isolated.
The damage that can be caused by the zoonotic disease is very high that it will easily cause panic, so it will be ideal for terrorism.

why are humans called heterotrophs

Answers

Human are called heterotrophs because they can not prepare their own food from simple carbons sources but obtain ready made food from other organisms like plants etc.

Humans are heterotrophs because we depend on preformed organic molecules from other organisms for energy and building blocks for growth. We can't produce our own food through photosynthesis.

Humans are called heterotrophs for several reasons. Here are the key points:

We are totally dependent on preformed organic molecules from food to meet all our energy needs.We also require organic molecules as building blocks for our anabolic processes.Heterotrophs, including humans, cannot produce their own food through photosynthesis; instead, we must consume other organisms.The term 'heterotroph' comes from Greek roots meaning 'other feeder', indicating that our food comes from other organisms.All food consumed by humans can be traced back to autotrophs like plants, which produce organic molecules through photosynthesis.

Each chromosome in humans has a maternal and paternal version. these pairs are called

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Each chromosome in humans has a maternal and paternal version. These pairs are called homologous chromosomes. Homologous chromosomes are similar but not identical. They contain the same genes in the same loci which enable them to align correctly with each other before separating during meiosis, but the alleles may not be the same.T he homologous chromosomes are the basis for Mendelian inheritance.

Homologs

Homologs are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during meiosis. The relationship between the two chromosomes (inherited from the father and mother) is separated by the action of genetic duplication.






What is the main difference between meiosis 1 and 2?

Answers

There is no interphase in meiosis 2 and there are 2 daughter cells at the end of meiosis 1, while 4 are formed at the end of meiosis 2

Kelsy contracted an infection caused by a pathogen from the genus Trichophyton. Her doctor gave her a medicated cream to rub on the area and told her to keep it as dry as possible.

Answers

athlete’s foot, an itchy foot rash caused by a fungus

Answer: Trichophyton is a fungus

Explanation:

Trichophyton is a genus of fungi which includes the parasite varieties which causes tinea including the athlete foot, ringworm, itching.

The fungus have the characteristic feature to grow in a moist area. The person is having an anti fungal tube which is being applied to the area where the fungal infection is present.

It is advised to keep the area clean and dry because the moist place allows the growth of more fungus.

During childbirth, the baby pushes on the wall of the uterus. this is detected by pressure receptors that signal the brain to release oxytocin. if this is a positive feedback process, select the likely next step.

Answers

The next step is likely to be; Oxytocin causes the uterus to contract, further stimulating the receptors, and releasing more oxytocin from the brain. Oxytocin is a vital hormone in human that acts on organs in the body, such as breasts and uterus, they act as chemical messenger in the brain, controlling childbirth and lactation, and aspects of human behavior. During childbirth the hormone causes the uterus muscle to contract during labor so that the body can be pushed out. 

Honey bees and other insects that go through the developmental stages of egg, larva, pupa, and adult are called

Answers

Insects like honey bees that undergo the stages of egg, larva, pupa, and adult are called insects that go through complete metamorphosis (holometabolous). This involves a dramatic transformation during the pupal stage. Key examples include bees, ants, flies, butterflies, and beetles.

Insects like honey bees that undergo the stages of egg, larva, pupa, and adult are called insects that go through complete metamorphosis (holometabolous). This type of metamorphosis involves a dramatic transformation at the pupal stage where the insect's body structure significantly changes to develop into the adult form.

Examples of insect orders that undergo complete metamorphosis include:

Hymenoptera (such as bees, ants, and wasps)

Diptera (flies)

Lepidoptera (butterflies and moths)

Coleoptera (beetles)

Some of the most ancient water on earth can be found in ________.

Answers

Aquifers is correct answer.

Aquifers found in of the most ancient water on earth.


Hope it helped you.

-Charlie

Monica's ultrasound reveals that the baby she is carrying is a boy. which chromosome pair is present in her baby?

Answers

XY

A human baby’s gender is determined by the sperm that fertilises the egg cell. A chromosome from the sperm cell which is either X or Y, fuses with the X chromosome in the egg cell.  The baby will be a girl if an X chromosome fuses with the X chromosome in the egg cell or it will be a boy if a Y chromosome fuses with the X chromosome in the egg cell which means the females carry XX, and the males carry XY. From the question above, Monica is carrying a boy so the XY chromosome pair is present in her baby.




what is the product of spermatogenesis?

Answers

what is the product of spermatogenesis?

haploid gametes

Why is ground meat more susceptible to microbial contamination than unground meat?

Answers

The answer is because there is more surface area for microbial to contaminate.
Other Questions
PLEASE HELP WILL MARK THE BRAINELIST!!!!!!1.) The fight or flight response (2 points)a. results from chronic stressb. has little impact on the bodyc. prepares an organism to respond to stressd. impacts only mental processes2.) Which of the following is a true statement about stress? (2 points)a. Both distress and eustress are harmfulb. The fight or flight response only occurs in wild animalsc. Stress is a psychophysiological responsed. Stress hormones increase the functions of all body systems3.) According to the American Psychological Association, what is the most significant source of stress for Americans? (2 points)a. Healthb. Educationc. Workd. Money4.) Which of the following is a common source of stress for both teens and adults? (2 points)a. Child-rearingb. Relationshipsc. Economyd. Education5.) How can stress be beneficial? (2 points)a. Decreasing heart rateb. Increasing digestionc. Increasing immune responsed. Increasing energy6.) Chronic stress can result in all of the following except (2 points)a. heart diseaseb. weight gainc. depressiond. improved concentration7.) People who experience chronic stress are more vulnerable to (2 points)a. illnessb. economic troublec. therapyd. genetic disorders8.) Type A personality has been linked to (2 points)a. higher rates of heart diseaseb. lower levels of time urgencyc. lower levels of stress hormoned. higher rates of job satisfaction9.) Which of the following is characteristic of Type B personality? (2 points)a. Tendency to multitask and rushb. Mental and physical alertnessc. Low sense of time urgencyd. Intense drive to achieve10.) What did Friedman and Rosenman conclude from their study? (2 points)a. Type B personality increases vulnerability to time urgency, which decreases stress response.b. Type A personality increases vulnerability to time urgency, which decreases stress response.c. Type B personality increases a person's levels of stress, which in turn increases vulnerability to CHD.d. Type A personality increases a person's levels of stress, which in turn increases vulnerability to CHD. Read the passage.I must close now. But before closing I am impelled to mention one other point in your statement that troubled me profoundly. You warmly commended the Birmingham police force for keeping order and preventing violence. I dont believe you would have so warmly commended the police force if you had seen its angry violent dogs literally biting six unarmed, nonviolent Negroes. I dont believe you would so quickly commend the policemen if you would observe their ugly and inhuman treatment of Negroes here in the city jail; if you would watch them push and curse old Negro women and young Negro girls; if you would see them slap and kick old Negro men and young Negro boys; if you will observe them, as they did on two occasions, refuse to give us food because we wanted to sing our grace together. Im sorry that I cant join you in your praise for the police department.In his Letter from Birmingham City Jail, Dr. King uses the phrase I dont believe . . . twice. 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Cognados (estados unidos) select s or no to indicate which cognates you hear in the panorama cultural video. video agosto s no In __________ the gods are most likely to take an active interest in the moral behavior of humans?