What pumps oxygen-rich blood to the body?

A. Right Atrium
B. Right Ventricle
C. Left Atrium
D. Left Ventricle

Answers

Answer 1
The answer is Left Atrium

Related Questions

What is a vaccine made out of?

Answers

Answer: Vaccines are made from a protein or other small pieces taken from a virus or bacteria.

Explanation: A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. Meaning my answer is correct.

Answer:

A vaccine is made of dead or inactive versions of the pathogen. A vaccine is usually injected into the body, the first thing that will happen is that the white blood cells recognise that there is a foreign item within the body so the white blood cells will produce antibodies. This means that in the future if the virus enters your body again, your immune system will be able to quickly defend of the virus since the made the immune system produce antibodies

Explanation:

During the investigation of a murder case, the police found a few bloodstains on the body of the victim, a few bloodstains on the wall nearby
and a few hair follicles by the victim. How could this evidence be used to identify the murderer?

A by matching both blood samples (from the wall and from the victim) to the DNA of the victim

B. by matching both blood samples (from the wall and from the victim) to the police database of DNA profiles of convicted
offenders

C. by matching the DNA in the hair follicles and in both blood samples (from the wall and from the victim) to that of the victim
and to the DNA database of convicted offenders

Answers

Your answer would be B. The first one would be correct if the question was “how do we identify both bloodstains are from the victim”.

Drag each label to the correct location on the diagram. Each label can be used more than once, but not all labels will be used.
The diagram shows some of the steps in the flow of energy through an ecosystem. The arrows represent the transfer of energy. Label each
arrow with the type of energy being transferred.
chemical
electrical
thermal
radiant
nuclear

Answers

Answer/Explanation:

=> The first arrow linking the sun and the plants represents transfer of RADIANT energy. The sun through its sunlight radiation provides energy for autotrophs such as plants to manufacture their food.

=> The second arrow from plants to rodent represents transfer of CHEMICAL energy. The chemical energy that is manufactured and stored between the molecules of the plant as food, is transferred to rodents as primary consumers.

=> Third and fourth arrow from the rodent to owl, and from the rodent to the wolf both represents CHEMICAL energy transfer.

=> Fifth arrow from the wolf to the surroundings show heat loss during metabolic processes in the wolf's body which represents THERMAL energy transfer from the wolf to the environment.

=> The width arrow from the wolf to decomposers also show THERMAL energy transfer as the wolf dies and decay, Hera is released.

The arrows represent the transfer of energy which are described as follows:

1. Radiant energy

2. Chemical energy

3. Chemical energy

4. Chemical energy

5. Thermal energy

Radiant energy is transferred through the first arrow connecting the sun and the plants. Sunlight gives autotrophic organisms like plants the energy they need to produce food. The transfer of chemical energy from plants to rodents is shown by the second arrow. Rodents are the main consumers of chemical energy that is produced and stored as food between plant molecules.

The third and fourth arrows, from rodent to owl and from rodent to wolf, respectively, both indicate the transmission of chemical energy. The fifth arrow shows heat loss from the wolf's body during metabolic activities, indicating thermal energy transfer from the wolf to the surrounding environment.

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A good scientific question MUST be _____.
A. broad
B. testable
C. unusual
D. debatable

Answers

answer: b testable hope i helped

Do Zebras reproduce asexually or sexually or both?

Do Giraffes reproduce asexually or sexually or both?


I will mark as brainleist!


Happy Friday! thank you

Answers

Answer:

zebra: sexually

giraffes:sexually

Explanation:

Have a great day ;3

Answer: Will for the Zebra it's both because the males ability is to reproduce but at a young age they can be sexually. Giraffes on the other hand reproduce asexually.  

Explanation: this was a weird question that I can say but hopefully this was help to you.

Which of these are found in the excretory system?
O A. Myofibrils
B. Villi
C. Nephrons
D. Osteoblasts

Answers

Both A, B, and C are found in the excretory system.

Myofibrils are in the muscle of the intestines, villi increase surface area of the intestine, and nephrons help to filter in the kidney. Osteoblasts are found in bone, so therefore is not part of the excretory system

Which is a function of nucleic acids?
regulate cell processes
provide structure
break down energy
fight disease

Answers

last one ...........

I think regulate cell processes. Since the nucleic acids make up DNA and RNA which coded for proteins productions..

// PLEASE ANSWER //

How are plants called epiphytes adapted to living in the understory of a rainforest?

a.) They have waxy leaves.

b.) They lose their leaves in some seasons to adapt to harsh temperatures.

c.) They are able to use moisture from the air.

Answers

Answer: The answer is (A), they have very waxy leaves.

Explanation:

Answer:

The answer is (A)

Explanation:

Function g can be thought of as a scaled version of f(x) = 2.

Answers

Answer:

23

Explanation:

Which best describes a bird’s role as it eats seeds?
parasite
predator
habitat
niche

Answers

Answer: niche

I hope this helps :)

Answer:

niche

Explanation:

Based on what you know about feedback mechanisms in the endocrine system, explain why
the body of an athlete who takes an artificial form of testosterone, such as a steroid, might stop
producing his own testosterone.

Answers

This is an example of negative feedback, which is the slowing down or inhibition of a process to maintain homeostasis. In this specific case, the athlete already has enough testosterone from the artificial, so he’s going inhibit the production his own testosterone to maintain homeostasis by stop producing something that is no longer needed.

explain how toothpaste works in cleaning teeth and preventing dental caries

Answers

Answer:

It has special items in the substance that are specialized for whitening and preventing things such as cavities.

Explanation:

Answer:

Toothpaste protects our teeths from unwanted bacteria in our mouth. It promotes oral hygiene.

It removes the food from the teeths which we have after the meal and it also prevents tooth decay.

hope it helps!

What conclusion can be drawn from this paragraph? A) time meant nothing to primitive people, B) People today have better memories, C) People have always used memory devices, D) Childern do not use memory devices. I posted a picture of the paragraph.​

Answers

Answer:

A.time meant nothing to primitive

When a person is frightened by a wild animal, what organ systems immediately become active?
A. endocrine and circulatory systems
B. Nervous and excretory systems
C. Digestive and circulatory systems
D. Respiratory and integumentary system‘s

Answers

Answer:

C.

Explanation:

which environment was the spray found in?

a. meadow

b. evergreen forest

c. marsh

d. woodland​




answer is woodland

Answers

the answer is woodland because it’s in the question?

Answer:

The answer is D: Woodland.

Explanation:

Thankyou for your time!

Consuming too much protein or excess amino acids can contribute to

Answers

Excess protein consumed is usually stored as fat, while the surplus of amino acids is excreted. This can lead to weight gain over time, especially if you consume too many calories while trying to increase your protein intake.

Consuming too much protein or excess amino acids can contribute to dehydration, hence option E is correct.

What is a high-protein diet?

A high-protein diet defines as when you consume an excess of protein in a diet that is higher than the normal need of the body.

 

The research suggests, is that high-protein diets can cause dehydration. Protein is composed of amino acid which is made of nitrogen. When a person consumes large amounts of protein, the body washes out excess nitrogen with fluids and water.

A higher amount of protein consumed is generally stored as fat, while the excess of amino acids is excreted. This can cause weight gain after some time, specifically if you take too many calories while trying to increase your protein input.

Therefore, high protein or excess amino acids can contribute to dehydration.

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The given question is incomplete so the most probable complete question is,

Consuming too much protein or excess amino acids can contribute to?

a. coronary artery disease

b. stroke

c. dehydration

d. arthritis

e. Dehydration.

um i need help please and thank you...

Answers

Answer: a, c, f

Explanation:

The height for those are closest to the height of humans, which means they’re most similar in brain volume

Which of the following is the independent variable in the hypothesis- "If you study harder, then your grade will improve."

What class you are taking

Your starting grade

The change in your grade

The amount you study

Answers

Answer:

Your starting grade is the independent variable

Explanation:

Hope that helps

Select the correct answer from each drop-down menu.
Laina is crime scene investigator. She knows that all biological physical evidence must be handled carefully until trial. What two things must
make sure to do with biological evidence?
Laina knows that all biological physical evidence must be kept at the proper
to preserve its stability and in the proper
to avoid cross contamination.
Reset
Next

Answers

Answer:

to preserve its stability.

to avoid cross contamination.

Explanation:

Biological evidence refers to all biological materials such as hair, tissue, bones, teeth, blood or other bodily fluids etc. These biological materials are collected from the site of crime. These evidences helps in finding the criminals. These biological evidences has to be kept at safe place in order to avoid contamination and preserve its stability so it can be used for solving the problem.

Answer:

temp and package for plato

Explanation:

im big brain boiiis

how are foodbourne pathogens transmitted?

Answers

Answer:

Explanation:

Other diseases are poisonings caused by harmful toxins or chemicals that have contaminated food. Of note many foodborne pathogens also can be acquired through recreational or drinking water, from contact with animals or their environment, or through person-to-person spread


How does the air we inhale compare to the air we exhale?
A. The air we inhale has the same percentage of oxygen as the air we exhale.
B. The air we inhale has a greater percentage of oxygen than the air we exhale.
C. The air we inhale has the same percentage of carbon dioxide as the air we exhale.
D. The air we inhale has a greater percentage of carbon dioxide than the air we exhale.

Answers

Answer:

B. The air we inhale has a greater percentage of oxygen than the air we exhale.

Explanation:

First, inhaled air contains about 21% oxygen. Some proportion of this oxygen is used to oxygenate the blood in the alveoli of the lungs for eventual use in cellular respiration. Hence, the proportion of oxygen in exhaled air will be significantly lesser than the proportion of oxygen in inhaled air. Indeed, exhaled air contains about 16% oxygen.

On the contrary, the air we inhale has a lesser percentage of carbon dioxide (0.04%) than the air we exhale (4.4%) due to the additional carbon dioxide produced as a byproduct of cellular respiration—which must be excreted by the lungs.

complete this Punnett square
enter your answer in the space provided.

Answers

Answer:

First square: Tt

Second square(below): tt

Third row(first): Tt

Third row(below): tt

Explanation:

I solved it on paper by myself

Convert the following measurements. 2L = __________ ml 5000 kg = ______ t 500 mg = ______ g 8000 mm = ____ m 25g = ________ mg

Answers

1. 2000 ml
1L=1000ml
2*1000=2000

2. 5
Divide by 1000

3. 0.5
Divide by 1000

4. 8
Divide by 1000

5. 25000
Multiply by 1000
1. 2000ml
2. 0.5t
3. 5g
4. 8
5. 25000mg

Interesting Facts (don't tell me definition cuz I already know it) about xylem, at least one

Answers

Answer:

Its cells have thick, hard walls.

Explanation:

Answer:

-xylem cells are long tracheary elements that transport water.

-dead cells are similar like pipes, hollow and rigid.

HELP QUICKLY The small nucleus of a paramecium is involved in a reproductive
process called conjugation.
a. true
b. false

Answers

Answer:

Is true

Explanation:

In paramecium,conjugation is a form of sexual reproduction.

Where does carbon cycle occur?

Answers

Answer:

On Earth, most carbon is stored in rocks and sediments, while the rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs, or sinks, through which carbon cycles.

Explanation:

hope this helps

Answer: sedimentary rocks where most of the earths carbon is stored

Explanation: hope this helped

Brainliest!!! please help me it's almost due.
Someone please help me
7. Explore and discuss homeostasis imbalances (issues that cause problems) including gallstones, heartburn, ulcers , dehydration, diarrhea, cirrchosis and cancers of the digestive system. **look up these conditions​

Answers

The method of the following issues that cause homeostatic imbalances:

1. Gallstones: The precipitation of excess bladder cholesterol into solid crystals is a prerequisite for cholesterol bladder formation, which is caused by disturbed bladder homeostasis. ... We have previously seen that bile and bladder osteopontin (OPN) levels are decreased in gallbladder patients.

2. Ulcers: Gastric bleeding is a major complication of peptic ulcer. Infection by H. Pylori leads to an imbalance of body iron homeostasis, as the increasing demand for iron is the same. Like other types of bacteria, iron is also essential for H growth.

3. Dehydration: If we are low on water, our bodies reduce the sweat and urine we produce to reduce fluid. Most of these reactions are effective under normal conditions and can restore water levels to homeostasis.

4. Diarrhoea: Bile acids, bacterial enterotoxins and neoplasm-derived secrets disrupt this homeostatic state, for example, leading to diarrhea. ... Different infectious organisms (eg bacteria, protozoa, viruses) use different mechanisms to cause intestinal infection and dysentery.

5. Cirrhosis: Disturbed volume homeostasis in patients with cirrhosis of the liver. ... Patients with moderately developed cirrhosis often show a characteristic circulatory disturbance, including arterial hypotension and urinary sodium retention by the kidney, which may lead to edema and ascites.

6. Cancer: Cancer, in this example, breaks down in the balance between cell growth and cell death. The gene that over-expresses anti-apoptotic genes and rejects pro-apoptotic genes is not understood, and it is often unknown why homeostatic equilibrium is lost (perhaps another term for carcinogenesis).

HEEELP MEEEEEThe following are microscope images of cells going through a cell division process. Use your knowledge on the topic to put the images below in an order that makes sense. In the space beneath the photos write a justification for your order


(USE THE PHOTO BELOW)

______ ______ ______ ______ ______ ______
1 2 3 4 5 6

Identify the six different phases by name. Record characteristics that you used to determine what the order is for each phase. (how do you know which is which)

Answers

C-Interphase
A- Prophase
B- Cytokinesis
D- Telophase
E- Metaphase
F-Anaphase

A- Prophase

B- Cytokinesis

C-Interphase

D- Telophase

E- Metaphase

F-Anaphase

What is cell cycle?

A cell's growth and division are accompanied by a sequence of processes known as a cell cycle. A cell spends the majority of its time in what is known as interphase, where it develops, duplicates its chromosomes, and gets ready to divide. The cell then exits interphase, goes through mitosis, and finishes dividing.

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

The chromosomes shorten and thicken during prophase. Chromosomes align in the center of the cell during metaphase. Chromatids split off at the centromere and migrate to opposite poles during anaphase. Telophase: Following the reorganization of nuclear envelopes around each cluster of chromosomes, two nuclei are created.

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1.Earth spins on its ___________________________ (4 Points)

Answers

Answer:

axis once in every 24-hour day

Saved
Which of the following is a piece of empirical evidence supporting evolution?

Question 1 options:

Mycology


Progression of traits


Asexual reproduction


Biogeography

Question 2 (5 points)
Saved
What were the focus point of the finches that allowed Darwin to observe significant variations?

Question 2 options:

Feathers


Eyes


Beaks


Claws

Question 3 (5 points)
What happens to a population when it's larger than the available resources can accommodate?

Question 3 options:

The environment will produce more nutrients and resources to support the population.


All of the organisms in that population will die.


The organisms who need fewer nutrients will support the organisms who need more.


The organisms not well suited for that environment won't survive.

Question 4 (5 points)
Which of the following terms means that the organisms are structurally and functionally related?

Question 4 options:

Homologous


Analogous


Archaic


Vestigial

Question 5 (5 points)
What did the peppered moths signify in evolution?

Question 5 options:

Organisms are constantly changing, but they're only driven by internal changes.


Environmental factors can change which organism is best suited for survival.


The environment always has a detrimental effect on organisms.


Human behavior is the main driver behind artificial selection.

Question 6 (5 points)
A fossil record for whales demonstrates the evolution from one whale into two new whale species. Why is this supporting evolution?

Question 6 options:

The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.


The fossil record shows that there are large splits in the development of new species, supporting macroevolution.


The fossil record shows that multiple species of whales have converged into one species because of best fit.


The fossil record captures every change in a species that leads to a new species.

Question 7 (5 points)
An organism has the allele frequency of a = 0.4 and b = 0.3. What's the frequency for allele c?

Question 7 options:

c = 0.3


c = 1.0


c = 0.0


c = 0.4

Question 8 (5 points)
Which of the following is/are not a condition affecting the Hardy-Weinberg equilibrium?

Question 8 options:

Genetic drift


Natural selection


Mutation


Recessive traits

Question 9 (5 points)
How do mutations occur?

Question 9 options:

Mutations occur through a negative change within that organism's DNA.


Mutations occur through the intentional alteration of amino acids.


Mutations occur randomly through changes in DNA.


Mutations occur as directed responses to changes in the environment.

Question 10 (5 points)
In polygenic traits, when the bell curve distribution of traits moves to one end of the curve because of a preference for best fit of that trait, what's this shift called?

Question 10 options:

Disruptive selection


Stabilizing selection


Directional selection


Nonjunction selection

Answers

Answer:

1. Biogeography

2. Beaks

3. The organisms not well suited for that environment won't survive.

4. Homologous

5.  Environmental factors can change which organism is best suited for survival.

6.  The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.

7. 0.03

8. Recessive traits

9. Mutations occur randomly through changes in DNA.

10. Directional selection

Explanation:

hope this helps

Answer:

1. Biogeography

2. Beaks

3. The organisms not well suited for that environment won't survive

4. Homologous

5. environmental factors can change which organism is best suited for survival

6. the fossil record shows that the structure of the whale is changing over time which is a requirement of evolution

7. c=0.3

8. recessive traits

9. mutations occur randomly through changes in DNA

10. directional selection

11. the name must include the genus and species of the new organism. it must be written in italics with the species name in lowercase.

12. a clade is a monophyletic grou[ing in which all the organisms stem from the same branching point

13. molecular systematics

14. it focuses on simple and obvious connections

15. Plantae, protista, and fungi

16. we don't have every organism that existed identified in the fossil record

17. Mass extinction

18. Hadean

19. Punctuated equilibrium

20. Endosymbiotic theory

21. Cell receptor

22. Attachment, entry, replication, copies made, exit

23. Lytic

24. Viruses and prokaryotes both adapt in response to their environments

25. Membrane-bound organelles

26. Liquid

27. they don't exhibit cell specialization

28. Plasmodium protist

29. Spores

30. Mycotoxicosis

from Penn Foster

Other Questions
Any help on these problems would be great! Thanks! Read this section of the text:Part eel, part sea snake, this sea serpent may have inspired many stories.Using the context of this sentence, which of the following is the best synonym for inspired? Affected Encouraged Excited Moved Given f(x)=x^3+2x+k. and x+1 is a factor of f(x), then what is the value of k? story: a quick note on getting better at difficult things PART A: Which of the following identifies the central idea of the textAIt is important to accept and expect struggle when learning a new skill.BIt is likely you will never fully master a new skill, but it is the journey that is important.CFrench is one of the hardest languages to learn, so people who attempt to learn it must be mentally tough.DIt is better to find something that you excel at, rather than struggle with something that doesnt come naturally. You will flip a coin 5 times and roll a die 10 times and record your findings.What is the probability that you get heads and the number 1. Write youranswer as a percent.Put your answer here:P (Heads and 1)= Approximately what percentage of law enforcement officers reported having a social media account in 2011? About 25%Over 50%Over 75%nNearly 100% If two fair dice, one red and one white, are rolled, in how many ways can the result be obtained?The sum of the two dice is less than 5.O A. 4 waysOB. 10 waysOC. 6 waysOD. 5 ways Each nucleus of a cell contains:genes and chromosomesgenes and chloroplastschromosomes and chloroplastschlorophyll and chloroplasts Kim's softball team was playing in the championship game. When there were 444 innings left, the team was losing by a score of 171717 to 666 points. In the last 444 innings, her team scored the same number of points per inning, and the other team did not score any more points. Kim's team won with the most points.Write an inequality to determine the number of points per inning, ppp, Kim's team could have scored. i have to write a letter to my friend in Spanish.QUESTIONS-Escribe una carta a tu amiga espanolamenciona--Que haces normalmente durante la semana?-Tu opinion sobre las peliculas?-Como fue tu ultimo cumpleanos?-que vas a hacer fin de semana?any tips , i want a good grade :) 1. What were two outcomes/effects of the Slave Trade on the world?2. Which region of the 13 colonies would you choose to live and give TWO reasons why? ABC Corporation has declared a rights offering to stockholders of record on Friday, December 10th. Under the offer, shareholders need 10 rights to subscribe to 1 new share at a price of $19. Fractional shares can be rounded up to purchase 1 full share. As of the ex date, the stock is trading at $29. The value of the right is: Katie has 36 coins in her jar (nickels, dimes, and quarters) totalling $4.20. She has twice as many dimes as quarters. How many nickels does Katie have? Walking, jogging, and light swimming are what types of exercisesa. aerobic exercisesb. isotonic exercisesc. anaerobic exercisesd. flexibility exercises what is the tone in tangled? please help me im stuck Simplify: 9p - 2p2 + 5p when and for what did Einstein gain international fame what is 8h+7m need help please!!!! Because of his job Joseph knows how to operate machinery design pounds and has knowledge of geography and math he is also colorblind which career is Joseph most likely a part of