High concentrations of carbon dioxide are harmful to the human body. The heart and the lungs work together to keep the body’s carbon dioxide level low. When the amount of carbon dioxide in the blood gets too high, the heart beats faster and the lungs begin to exhale more rapidly. This allows the lungs to remove the carbon dioxide from the blood and expel it from the body faster.

Based on the information, select the two body systems that work together to maintain a low carbon dioxide concentration in the body.



There are two correct answers. Select both answers.

a
digestive system
b
circulatory system
c
respiratory system
d
nervous system

Answers

Answer 1

Respiratory and Circulatory


Related Questions

1.Earth spins on its ___________________________ (4 Points)

Answers

Answer:

axis once in every 24-hour day

Which statement best describes a hypothesis?
O A. It must be true,
B. It must be testable,
O C. It must be a theory.
O D. It must be permanent.

Answers

The answer is B It must be testable.

// 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:

Which feature separates watersheds?
basins
bays
ridges
rivers

Answers

Answer:

Which feature separates watersheds? C.ridges

A.basins

B.bays

C.ridges

D.rivers

Explanation:

Ridges feature separates the watersheds. Therefore, the correct option is C.

What are Watersheds?

A watershed is a piece of land that directs water into a particular body of water. A watershed exists for every body of water. Rainfall and melting are channelled into rivers and streams by watersheds.

Lakes, bays, and oceans are among the bigger bodies of water that these smaller ones flow into. Water travels across the landscape with the assistance of gravity.

The area of land known as a watershed is responsible for directing precipitation and snowfall into creeks, streams, and rivers, and ultimately outflow places like reservoirs, bays, and the ocean.

A small mountain creek's watershed may only be a few square meters in size. Some watersheds are very large and typically cover numerous smaller ones. Ridges separates the watersheds

Therefore, the correct option is C.

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The chart shows characteristics of two groups of reptiles.



Which headings correctly complete the chart?

X: Turtles
Y: Crocodilians

X: Crocodilians
Y: Turtles

X: Snakes
Y: Turtles

X: Crocodilians
Y: Snakes

Answers

Answer:

X: Crocodilians

Y: Snakes

Explanation:

Answer:

X: Crocodilians

Y: Snakes

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!

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..

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”.

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.

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

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

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.

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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Living things that are well adapted to their environment survive and reproduce. Those that are not well adapted don’t survive and reproduce. An adaptation is any characteristic that increases fitness, which is defined as the ability to survive and reproduce. What characteristic of the mice is an adaptation that increased their fitness?

Answers

The tendency of an organism to reproduce and survive in the environment in which they thrive is termed as fitness of that organism.  

• The mice are considered to be the second most successful mammal on the planet today.  

• Mice possesses the tendency to change with the stresses and environment in which they thrive.  

• Due to their close association with humans, house mice possess the tendency to live in very dry or hot conditions or in very cold conditions where they could not survive alone.  

• The mice possesses the tendency to reproduce at a very high rate, thus, there are always individuals, which can survive.  

• They have the tendency to sense their surroundings like other mammals, they even possess good hearing and vision.  

• They have large cup shaped ears, which assists them to sense vibrations of sound.  

• They also possess good sense of smell and whiskers that helps them to feel air movements and feel surface textures.  

Thus, mice are equipped with several elements that helps them to adapt in the environment in which they live, that is, have increased fitness level.  

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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 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

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

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

what is the two-word term for tracking a disease by gathering data on the movements and interactions of someone infected?

Answers

Answer:

Explanation:

Diagnosis - A disease must be diagnose this can be done by group of expertise. They diagnose one to two persons with the disease asking them questions about their state of health, how they were expose to the illness. This enable them have enough evidence as regarding the disease.

Signs and symptoms - signs are traces to a disease it is determined by an experts while the symptoms are the abnormalities or changes that indicate the disease.

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:

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!

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).

In a Venn diagram, the separate circles contain characteristics unique to each item being compared and the intersection contains characteristics that are common to both items being compared. Abi is working on a Venn diagram comparing theories and laws.



Which can he place in the intersection?

“based on a single hypothesis”
“can be changed”
“factual statement”
“based on repeated experimentation”

Answers

based on a single hypothesis

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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Why does the process of meiosis create more genetic variety than the process of mitosis?

Answers

Answer:

Meiosis creates more genetic variety than the process of mitosis because meiosis involves two people but in mitosis its just a replication of the cell.

(Sorry if this isn't correct I just thought of it from the top of my head)

Explanation:

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.

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

This food web describes feeding relationships in a tropical community.


boa constrictor


beetle -


coati


poison dart frog


sloth


strangler fig


fungus


fruit bat


If an invasive species of beetle enters this community, which change is most


likely to happen?

Answers

Others shall start dying due to the fact that they don’t have there “food”

In the given food web if the beetle that is invasive enters the community, it will result in an increase in competition for sunlight and space among plants.

What is an invasive species?

The non-native species that enter the ecosystem can be any organism including amphibians, birds, insects, etc referred to as invasive species.

In the given food web if the beetle that is invasive enters the community, it will result in an increase in competition for sunlight and space among plants.

Thus, the scenario will show an increase in the competition for sunlight and space among plants.

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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.

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:

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please helpppp i dont know what do to :/ if you answer thank you so much What is the relationship Between frequency and sound? pilot is to navigator, as opponent is to __________. How did Florida become a state? What were the events that led to it becoming a state? Make sure to put those events in order. Mazu is able to see her brothers struggling to survive at sea during the typhoon. She is able to guide them to the largest pieces of wood so that they can stay afloat. Why does mazu most likely have these special powers the old man at the bridge by ernest hemingway alternate ending What is perspective and point of view? Tim tiene 39 pares de audfonos y 13 reproductores de msica. Tim quiere vender todos los audfonos y los reproductores de msica en paquetes idnticos. Cul es el mayor nmero de paquetes que Tim puede hacer? Base your answers on the graph below, which represents uniform cooling of a sample of a pure substance, starting as a gas. Solid and liquid phases can exist in equilibrium between points Please help with this question! I don't know which to choose. I WILL VOTE BRAINLIEST AND GIVE THANKS! AND I AM GIVING 20 POINTS! (DESPERATE)Please help! I need this answered as soon as possible, please! Thanks!Look at the file (Image of Number line) to see the picture required to help you solve the problem.The number line shows the graph of an inequality:Which statement explains whether 2.5 can be a value in the shaded region?Yes, it can, because 2.5 lies to the left of 0.5.Yes, it can, because 2.5 lies to the right of 0.5.No, it cannot, because 2.5 lies to the left of 0.5.No, it cannot because 2.5 lies to the right of 0.5. 1. What is the Federal Reserve (or the Fed)?2. What does the Federal Reserve do?3. Why is the Federal Reserve important? Can I get some help please The manufacturing overhead budget of Paparella Corporation is based on budgeted direct labor-hours. The November direct labor budget indicates that 6,000 direct labor-hours will be required in that month. The variable overhead rate is $2.00 per direct labor-hour. The company's budgeted fixed manufacturing overhead is $79,200 per month, which includes depreciation of $21,000. All other fixed manufacturing overhead costs represent current cash flows.Required:A. Determine the cash disbursements for manufacturing overhead for November.B. Determine the predetermined overhead rate for November. Estimate the distance of a fading white dwarf supernova of luminosity 108lsun whose apparent brightness is comparable to that of a bright cepheid variable star 100 million light-years from earth. Without photosynthesis, life would not have been able to proliferate the way it had over the past several million years. Identify which single called organism made this possible What can you conclude about the major f scale from its name ? Is the origin located at the intersection of the x - and y -axis Which of the following best illustrates the commutative property of addition?a. 8 + (7 + 3) = (8 + 7) + 3b. 8(7 + 3) = 8(7) + 8(3)c. (8 + 7) + 3 = 3 + (8 + 7)d. 8 + (7 + 3) = (8 + 7) + (8 + 3) 8e. 8 + (7 + 3) = 8 + (7 + 3 Read the excerpt from the NASA article called "July 20, 1969: One Giant Leap for Mankind." A day after that, Armstrong and Aldrin climb into the lunar module Eagle and begin the descent, while Collins orbits in the command module Columbia. Collins later writes that Eagle is "the weirdest looking contraption I have ever seen in the sky," but it will prove its worth. How does this information provide a different perspective than The Man Who Went to the Far Side of the Moon?