Which upper chamber of the heart contains oxygen-rich blood?
a. the right atrium
b. the left atrium
c. the right ventricle
d. the left ventricle

Answers

Answer 1

Answer:

b. la aurícula izquierda

Explanation:...

Answer 2

Answer:

B.the left atrium

Explanation:


Related Questions

When a tree is cut and burned, it is converted into which of the following?
carbon reservoir
carbon cycle
carbon source
carbon sink

Answers

Answer:

Carbon Source

Explanation:

When trees are burnt, they release all the carbon inside them. Therefore, making it a source.

Answer:

Carbon Source

Explanation:

Fire takes up oxygen and releases all of the Carbon from inside of the tree.

When eating food, what anatomical and functional divisions of the nervous system are involved in the perceptual experience?

Answers

Answer:

Taste afferents reach the geniculate, inferior petrosal, and plexiform ganglia and then proceed to the brain stem to synapse in the solitary tract of the medulla oblongata. Nerve branches branch from here to the lateral hypothalamus, the amygdala, and the thalamus

Explanation:

The taste sensitivity of the tongue is conveyed by three different cranial nerves (VII, IX and X). The taste buds of the anterior two thirds of the tongue are innervated by the chorda tympani nerve, a branch of the facial. The facial nerve also collects the taste sensitivity of the soft palate through another of its branches, the greater superficial petrosal nerve.At the thalamic level, cross relationships are established with the contralateral gustatory nucleus and convergence with other lingual and olfactory afferences of the piriformis cortex. Third-order neurons are sent from the thalamus to the parietal cortex. Somatosthetic fibers have mainly contralateral projections, while taste projections are ipsilateral.

The sensation associated with taste when eating food is primarily sensed by nerves that are located in the peripheral nervous system (PNS) and they are involved in sensory and somatic functions.

A nervous system refers to a neural network that comprises nerve cells and fibers, which are used for the transmission of neural impulses (signals) around the various body parts of a living organism.

In living organisms, the nervous system is made up of two (2) major components and these are;

Central nervous system (CNS)Peripheral nervous system (PNS)

Generally, the peripheral nervous system (PNS) is the anatomical and functional divisions of the nervous system that is responsible for perceptual experience when eating food. Thus, the sensation associated with taste when eating food is primarily sensed by nerves that are located in the peripheral nervous system (PNS).

The PNS nerves that are involved in sensory and somatic functions include:

Cranial nervesPeripheral nervesSpinal nerves

Read more on PNS nerves here: https://brainly.com/question/10953134

Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all F1 individuals have red, axial flowers. The genes for flower color and location assort independently. If 1,000 F2 offspring resulted from the cross, approximately how many of them would you expect to have red, axial flowers?

Answers

Answer:

hi

Explanation:

190 is the red terminal

What molecules in the cell membrane help move molecules from a low to a high concentration gradient?

Answers

Answer:

In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient).

Explanation:

1. What role do the oceans play in water cycle?
2 Where do you think sublimation of snow to water is most common?
Please help me my brain is fried from all this homework

Answers

Answer:

1. oceans act as reservoirs

2. sublimation of snow to water is most common as it falls to the ground for clouds.

Explanation:

PLEASE HURRY . I AM BEING TIMED!!! (5:53) How are the international efforts at reducing resource and ecological depletion similar?

Answers

Answer:

Explanation: they operate on volunteer basis rather than a mandatory one. Because the nations do not have jurisdiction over each other.

Answer:

International efforts to reduce resource and ecological depletion operate on a volunteer basis rather than a mandatory one. This is due to the fact that nations do not have jurisdiction over each other.

Explanation:

just took practice edg 2021

Question 1 (1 point)

What is a byproduct? (Select the best answer.)



Something produced during the production of something else


A product that doesn't have a negative impact on the environment


A study of how much environmental impact a product causes

Question 2 (1 point)

What is embodied energy? (Select the best answer.)


The energy it takes to dispose of a product


The energy it takes to perform a life cycle analysis


A measurement of how much energy is consumed through a product's life cycle
Question 3 (1 point)

Which of the following are ways in which the industrial revolution impacted the world? (Select the three best answers.)



There was a decrease in pollution and waste.





People experienced more repetitive strain injury.


Products took less energy to produce.




More people moved from the country to cities.


Products became more expensive.

What is production energy efficiency? (Select the best answer.)

Question 4 options:

A measurement of how much energy is used in the process of making a product


A measurement of how quickly an assembly line can produce a product


A measurement of how much energy is consumed through a product's life cycle

Answers

The correct answers are:

1. A byproduct Something produced during the production of something else

2. Embodied energy is a  measurement of how much energy is consumed through a product's life cycle

What is a byproduct?

A byproduct is a secondary good that results from a manufacturing procedure, industrial process, or chemical reaction; it is not the main good or service being created.

The industrial revolution has impacted the world in the following ways:

More people moved from the country to cities.Products took less energy to produce.There was a decrease in pollution and waste.

Production energy efficiency is a measurement of how much energy is used in the process of making a product.

Learn more about byproducts at: https://brainly.com/question/21351455

#SPJ1

From the top of the stifer mantle to the center of Earth, the rock material is inferred to be
solid all the way to the center of the inner core
solid, then liquid, then gaseous to the center of the
inner core
solid, then liquid to the center of the inner core
solid, then liquid, then solid again to the center of
the inner core

Answers

Answer:

What is the question here?

Explanation:

Hm

Which sampling site had the highest proportion of heavily infected monarchs?
A. Mexico
B. Guif Coast
C. Northern United States
D. South America

Answers

Answer:

The correct answer is option D "Mexico"

Explanation:

In February 2008, we gathered grown-up rulers at two discrete overwintering destinations in the Neovolcanic Piles of Focal Mexico:

(I) Sierra Chincua  

(ii) Cerro Pelon.

The two locations are situated in Michoacan, Mexico. Butterflies were gathered utilizing standard flying nets with expandable posts.

The commonness of monarchs vigorously infected with OE at every one of these two areas in 2008 was 14.4 and 13.6%.

From ten imitate bunches (five groups for every site), we arbitrarily chose sound and tainted butterflies following starter screening of parasite tests in the field, for a sum of 75 solid and 100 intensely infected monarchs.

How does petrification link to how the oldest fossils are found in the lowest rock

Answers

Answer:

Explanation:

In geology, petrifaction or petrification is the original material and the filling of the original pore spaces with minerals. Petrified wood typifies this process, but all organisms, from bacteria to vertebrates, can become petrified. Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals. Researchers at UCLA and the University of Wisconsin–Madison have confirmed that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and indeed the earliest direct evidence of life on Earth. The study, published Dec.

5.07 Graded Assignment: Locating the Epicenter Exploration

Assignment: Locating the Epicenter Exploration

HELP PLEASE

Answers

Answer:

FIND IT

Explanation:

White blood cells engulf bacteria through what process phagocytes pseudopodia bacteria

Answers

Answer:

Phagocytosis

Explanation:

Why are seals able to live the coast of Antarctica while frogs snakes, and panthers not?


A. Seals can swim

B.seals are predators

C.seals have fur and blubber

D.seals are warm-blooded animals

Answers

Tbh it’s either c or d because c and d are both correct
The answer is C. My answer is because A and B are irrelevant to the question, so for that it can be eliminated. But between C and D, C makes much sense. Although D, says that seals are warm blooded and is true, however frogs (amphibians) and snakes (reptiles) they are cold blooded. They need sun in order to feel warm or the heat to adjust or accommodate their bodies temperatures, unlike panthers and seals they’re warm blooded they naturally have fur and are able to regulate their bodies temperature. Therefore D is eliminated. The correct answer is C, because seals have fur and blubber it’s much more durable, and are almost as if impenetrable for the freezing water and colder weather to pass through their fur. That is why they are able to live the coast of Antarctica.

The correct answer is C.

i need the ansewer to this but i scammed these points any way
Which statement describes carbohydrates?

Carbohydrates store and transmit an organism’s genetic information.
Carbohydrates provide energy to organisms.
Carbohydrates help with an organism’s tissue growth and repair.
Carbohydrates provide an organism with long-term energy storage.

Answers

Where do we hypothesize that plants came from?

1. List the 5 types of tissue found in an animal’s body.

Answers

Answer:

There are four types of tissues found in animals: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. In this lab you will learn the major characteristics of each tissue and examine various types of each tissue under the microscope.

Explanation: I don't know the #5 but there are four  of them


Fill in the blanks.
1. Human beings continue to grow till the age of.​

Answers

Answer:

The fastest rate of growth is usually 1 to 2 years after puberty has started. Developing physically into an adult takes 2 to 5 years. Most boys will stop growing taller by age 16 and will usually have developed fully by 18.

what are the causes of antibiotics resistance ?

Answers

Answer:

Over-prescription of antibiotics.

Patients not finishing the entire antibiotic course.

Overuse of antibiotics in livestock and fish farming.

Poor infection control in health care settings.

Poor hygiene and sanitation.

Explanation:

google

Answer: Antibiotic resistance has become a global threat, and with Antibiotic Awareness Week, it is important to understand the series of events that have led the world to this predicament. Originally touted as a miracle discovery, we are seeing that there can be too much of a good thing.

Explanation: The use of antibiotics has saved millions of lives, but its pervasive use to treat any infection, whether serious, minor, or even viral has lead to the increase in antibiotic resistance.  Antibiotics strictly target bacteria, but it is sometimes difficult to differentiate between viral and bacterial infections without costly tests. It is often less time-consuming and more cost effective to proactively prescribe antibiotics, rather than take precautions and prescribe only the correct treatment.

Another issue with antibiotics is the inability to monitor patient intake.  Antibiotic dosages are designed to eradicate entire populations of the pathogens. When antibiotics are not taken for the entire prescribed course, pathogenic bacteria can adapt to the presence of low dose antibiotics, and eventually form a population that is completely resistant to the antibiotic regardless of the dosage.

Antibiotic usage is also not exclusive to humans. Every day, antibiotics are used to treat livestock and fish to prevent infections.  Similar to overuse in humans, uncontrolled use of antibiotics creates a reservoir of bacteria that could become resistant, thus rendering the antibiotic useless.

In the lumen of the proximal tubule, Na concentration is ________ the Na concentration inside the cells of the tubule wall.

Answers

Answer:

The correct answer is - higher than

Explanation:

In the lumen of the proximal tubule of the kidney, most of the solutes are absorbed in the form of sodium. There is a gradient of sodium ions which allows the absorption of the solutes from the lumen into the cell.

It is due to the solute or  Na concentration is higher in the lumen than Na concentration inside the cells of the tubule wall. So movement of the solutes is due to the concentration gradient.

Imagine that a plant cell has a damaged large central vacuole that is not functioning.
Which statement BEST describes how this damage will affect the cell’s ability to function in photosynthesis?
A
The cell will no longer allow water molecules into the cell and the mitochondria will lack raw materials.

B
The cell will no longer be able to perform photosynthesis and the mitochondria will lack raw materials.

C
The cell will no longer be able to maintain turgor pressure and the chloroplast will lack raw materials.

D
The cell will no longer be able to store water molecules, maintain turgor pressure, and the chloroplast will lack raw materials.

Answers

Answer:

I think its D

Explanation:

The vacuole helps get rid of waste

which scientist developed a method to describe the consistency of the fine grained soils with varying contents?​

Answers

Answer:

Albert Atterberg (Swedish) scientist

Why is Cellular Respiration so important?
A. It provides all the sugar for the rest of the cell
B. It provides all the power for the rest of the cell
C.
It makes sure the cell is safe
D.
It keeps bad things out and good things in the cell

Answers

B. Because cellular respiration provides the energy for living organisms to perform all of the other necessary functions to stay alive

Can someone be able to help, I’ll give brainly and extra points! Plus a 100 points! Ty!:)

Answers

Answer:

I can't see the media clearly:'(

Which microscope could be used to study the movement of protists in water?

Answers

Answer:

A simple light microscope

Explanation:

Red is dominant over yellow. If a male purebred red nose (RR) is crossed with a female hybrid rose (Rr) what percent of roses will be red? 100% 75% or 25%

Answers

Answer:

100%

Explanation:

since RR is dominant and Rr is hybrid R is still dominant. red will show morethe combinations would be Rr  Rr. Rr. Rr.

When food leaves the stomach it is:

partly digested
completely digested
finished with the digestive system
undigested

Answers

Answer:completely digested

Explanation:because the enzymes in your stomach break it down

Answer:

Completely Digested....

hopes this helps you

Explanation:

Some species of sharks are on the verge of extinction because of shark finning. Washington, California, Guam, and Hawai'i prohibit selling, trading, and possessing shark fins. Do you believe sharks should be protected? Should the United States and other countries support this ban? Why or why not?

Answers

Answer:

1.yes

2.yes

3. if we don't interact with sharks they might not interact with us as often

Explanation:

list two examples of temporary change in human​

Answers

Answer:

Being emotional

Frustrations about changes in bodies

Explanation:

During growth stage, there are certain changes that occurs, these changes are either permanent or temporary. Temporary changes are seasonal and end with time as one is transitioning whereas permanent changes like deepening of voice in boys remains and growth of breasts in girls are permanent

The Sun's luminosity is greatest when there are few or no sunspots on the Sun. True or false

Answers

Answer:

False

Explanation:

CHECKPOINTS
Check Your Understanding
1. What does all matter have in common?
a. It is liquid at room temperature.
b. It is made up of atoms.
c. It is visible.
d. It is neutral.

Answers

B because everything is made by atoms
The answer is B.

All matter is made up of particles called atoms and molecules (as opposed to being continuous or just including particles.)

Brainliest please :)

Which is smallest?
mRNA
TRNA
primary transcript
O protein

Answers

Proteins, proteins are the substances that make up RNA and transcripts

primary transcript is the smallest

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A one story house is 2,200 square feet. 40% of the house has a basement. How many square feet is the basement? Round 67,891 to the nearest hundred Liza and Kelly rode their bikes everyday for five days. They each rode the same distance everyday. Lisa rode 60 miles in all and Kelly rode 25 miles in all. How many more miles per day did Lisa ride than Kelly? Hi! Can someone please help me with these two questions??!! Thank you so much! Given points A(9,3), B(-3,6), and C(-7,3). Which statement describe the vectors that include these points? Check all that apply Read the following excerpt and draw a conclusion (a few sentences that the author is describing"It was already one in the morning, the rain pattered dionally against the panes, and my candle was nearly burnt out,When, by the glimmer of the half-extinguished light, I saw the dull yellow eye of the creature opery, it breathed hard,and a convulsive motion agitated its limbs,How can I describe my emotions at this catastrophe, or how delineate the wretch whom with such infinite pairs andcare I had endeavoured to form? His limbs were in proportion, and I had selected his features as beautiful,Beautiful! Great God! His yellow skin scarcely covered the work of muscles and arteries beneath, his hair was of aJustrous black, and flowing his teeth of a pearly whiteness, but these luxuriances only formed a more horridcontrast with his watery eyes, that seemed almost of the same colour as the dun white sockets in which they wereset, his shrivelled complexion and straight black lips.did Chelsea went ice skating. The ice, her skates, and the building itself were all examples of solids she encountered. She developed a model of the particles in the ice. Which of these statements about the particles in her model of a solid are true? the answer choices They vibrate in placeThey slide past each otherThey are packed very closely togetherThey cause the solid to have definite volume and definite shapeThey cause the solid to have definite volume but not a definite shape Expand and simplify(3x + 2)(x - 1) How could a conditioning program, focused on muscular endurance, impact body composition? Question 5 options: Increase body fat percentage Decrease body fat percentage No impact on body fat percentage None of the above 1234569Which expression is equivalent to 5(w+4) when w=g?O 5(9)O 915)05(9)+4O 5(9) +20 How do we see the Enduring Issue of Conflict affect the Greek city-states through the Greco-Persian and/or Peloponnesian Wars? A wooden artifact is found in an ancient tomb. Its carbon-14 14 6 C activity is measured to be 65.0% of that in a fresh sample of wood from the same region. Assuming the same amount of 14C was initially present in the artifact as is now contained in the fresh sample, determine the age of the artifact. what are the two main categories that all water can be classified into? Even though they are good friends, what is one argument seen in the play between Henry and Waldo?Play: The Night Thoreau Spent in Jail The Chester Company has just purchased $40,900,000 of plant and equipment that has an estimated useful life of 15 years. The expected salvage value at the end of 15 years is $4,090,000. What will the book value of this purchase (exclude all other plant and equipment) be after its third year of use? (Use FASB GAAPa) $32,720,000b) $29,448,000c) $35,446,667d) $33,538,000 why is tubman most likely describe as brave? If the line y = x is flipped over the x axis and made flatter by a factor of 1/2 , write the equation of the new line .PLEASE HELP Plz help Im getting timed Explain how the quest for the holy grail means ruin for Camelot? 2x -14 = -9 answer for this equation