2. Which is true of the human circulatory
system?

A It transports oxygen and nutrients.

B It makes blood cells.

C It breaks down food and releases nutrients.

D It is the first line of defense against pathogens.

Answers

Answer 1

Answer: B

Explanation:

The circulatory system includes the heart, veins, arterioles, etc.. Includes blood as well

Answer 2
I saw an answer that said B, but that is INCORRECT. Bones actually make the blood, in which bones are not apart of the circulatory system. Meaning that it is actually D. The circulatory system includes cells such as Blood Cells, and White Blood Cells. White Blood Cells defend the blood stream from any PATHOGENS or bad bacteria invading.

Therefore, the answer is in fact D!

Related Questions

Part
A
Fill in the table using credible sources and your own experiences and past observations. If you're not sure what one of the
characteristics means, look it up on a credible website

Answers

A source is trustworthy if it was written by a subject matter expert, is error-free, and is objective.

How do I know if a source is credible?

Peer-reviewed publications, governmental entities, think tanks for scientific study, and trade associations are examples of reliable sources. Due to their strict publishing standards, major newspapers and magazines also offer trustworthy information.

A reliable source is one that was authored without bias or inaccuracies by a subject matter expert in the field. This manual outlines the distinctions among reliable, scholarly, and peer-reviewed sources.

Take note of the three letters that follow the domain name, such as "edu," "gov," "org," and "com," which indicate the site is an educational, governmental, or nonprofit entity (commercial). Websites with the. gov and. edu extensions are typically trustworthy, but watch out for sites that are trying to trick you.

To learn more about credible sources refer to:

https://brainly.com/question/27131572

#SPJ1

answer is given from edmentum

Folate is a crucial vitamin for proper development of
the neural tube, which eventually becomes the brain and
spinal cord. Which of the following might explain why
neural tube defects occur more frequently than other
types of birth defects?

Answers

The neural tube, which is responsible for the development of the brain and spine, closes within the first 28 days of pregnancy.

Folate deficiency can prevent the neural tube from closing, which can result in a neural tube defect.

Which vitamin deficiency results in defects of the neural tube?

Neural tube defects may be more likely in people with low vitamin B12 levels, according to the National Institutes of Health (NIH).

How does folate affect the developing uterus?

The amount of folate in your blood is important to help prevent a neural tube defect, also known as a serious birth defect of the brain or spine, in a developing baby if you are pregnant or could become pregnant.

To learn more about neural tube here:

https://brainly.com/question/13504830

#SPJ1

A new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors. How could energy have played a role in the different rock types forming?

Answers

Note that where a new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors. Energy could have played a role in the different rock types forming in that "Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces of rock." (Option C)

What is rock formation?

A rock formation is a solitary, picturesque, or outstanding outcrop of surface rock. Weathering and erosion shape the existing rock, resulting in rock formations. In stratigraphic and petrologic investigations, the phrase rock formation can also refer to specific sedimentary layers or other rock units.

Energy can be involved in the production of various rock types in a variety of ways. One option is metamorphism, which occurs when rock is exposed to high temperatures and pressures, leading it to alter in composition and structure.

Learn more about Rock Formation:
https://brainly.com/question/26733433
#SPJ1

Full Question:

A new national park has two caves that visitors can see. One cave is made of a different type of rock than the other one. Park rangers want to explain the difference to visitors.

How could energy have played a role in the different rock types forming?

Answer choices

Energy causes different types of rock to change in different ways. Energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.

Energy caused one rock type to form, but not the other. Rock that forms because of energy is a different type of rock than rock that forms without energy.

Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces of rock.

Energy changes rock on different continents in different ways. Each continent on Earth has different rock that might form liquid rock or small rock pieces when exposed to energy.

what factors must be kept constant in the experiment to obtain valid results

Answers

i think the answer is constants

What are two adaptations in plant cells that do similar things for plants as bones do for animals? HELP PLEAS THANK OYOU

Answers

Answer:

Two adaptations in plant cells that do similar things for plants as bones do for animals are cell walls and vacuoles. Cell walls provide structure and support to the plant, similar to how bones provide structure and support to animals. Vacuoles store essential nutrients and minerals, just as bones store important minerals and nutrients.

Explanation:

the illustration shows a model of the transport of soute particles from outside the cell to inside the cell. what type of cell transport is modeled

Answers

Answer:

The illustration shows a model of the active transport of solute particles from outside the cell to inside the cell.

Explanation:

Active Transport is defined as a process involving the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy.

This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.

An example is the phagocytosis of bacteria by Macrophages.

To learn more about active transport,

https://brainly.com/question/29759743

period when cell is not engaged in division

Answers

Interphase is the period of cell cycle in which the cell is not engaged in any kind of cell division. This phase is marked as the preparatory phase for the actual cell division.

What is Cell cycle?

The cell cycle is a series of steps during which the chromosomes and other cellular material double to make two copies of the genetic material. The cell then undergoes division to form two daughter cells, each of the daughter cell receiving one copy of the doubled chromosomal material. The cell cycle is complete when each of the daughter cell is surrounded by its own outer membrane.

   

The interphase is the period when the cell is in a non-dividing state of the cell and this phase can be in different stages: the first gap (G1) between the last mitosis (M) and the S-phase (phase of DNA synthesis) and the second gap (G2) phase between the completion of the S-phase and the next mitosis (M).

Learn more about Interphase here:

https://brainly.com/question/20223797

#SPJ1

In a solution of seawater, salt is which of these?

A. solute
B. compound
C. solvent
D. mixture

Answers

The answer is A. The salt is a solute.


provides an opportunity to get
to know someone of the opposite sex outside your own family.

Answers

College life or getting to meet people provides an opportunity to get to know someone of the opposite sex outside your own family.

Understand differences and similarities of both genders, and learn how to get along with each other.

Establish good interpersonal relationships, enrich your social life.

Understand each otherAccept each otherLook for similaritiesLearn from each otherComplement each otherChoose friends carefullyBe sincere

How to Get to Know the Person

1 Ask open-ended questions

2 Ask them questions about the future

3 Learn about the interests

4 Be curious about the life

5 Actively listen to them

6 Open up about past.

7 Invite them to hang out with closest friends

8 Spend a typical day together

learn more about family at

https://brainly.com/question/12397063

#SPJ1

Ocean currents have a direct effect on climate by an interaction of which systems? (1 point)
O hydrosphere and atmosphere
O geosphere and biosphere
O geosphere and atmosphere
O biosphere and atmosphere

Answers

Ocean currents have a direct effect on climate by an interaction of ' geosphere and atmosphere'.

What is the atmosphere?

The atmosphere is basically the layer of gases surrounding the Earth. It is composed of nitrogen (78%), oxygen (21%), and trace amounts of other gases, such as argon, carbon dioxide, and water vapor. The atmosphere protects us from the sun's harmful ultraviolet radiation, helps keep temperatures moderate, and creates the weather patterns that make life possible.

Ocean currents act as a bridge between the atmosphere and the geosphere, transferring heat, moisture, and momentum between the two. This helps to regulate the global climate by moving warm water from the equator to higher latitudes and vice versa. This in turn affects air masses, cloud formation, and precipitation patterns, which can have a great impact on the climate. For example, warm ocean currents can strengthen cyclones, while cold currents can help prevent them. In addition, ocean currents can influence the rate at which heat is absorbed and released into the atmosphere, which can lead to extreme weather events like heat waves and droughts.

Hence, Option C is correct.

To know more about the atmosphere,

https://brainly.com/question/30157320

#SPJ1

Answer:

A) Hydrosphere and atmosphere

Explanation:

Took the quick check :)

Fill in the blank with the best choice. "Continued labor trouble contributes to poor
a. Morale
b. Morel
c. Moral

Answers

Answer:

a. Morale

Explanation:

A. Makes the most logical since to me.

the answer has to be A. morale

3. Based on the data, which beak type was more adapted and which was the least adapted?

4. What would happen if all of the birds flew to a new location and the only food available was beans? Which bird would be most successful? Which bird would be least successful?

5. If you come back to this location (question 4) in 50 years, what would you expect to see? (What type of bird will be the most abundant?)

6. Suppose a drought caused the local extinction of beans, pennies, and paperclips. Using your knowledge of the different beak shapes in your community, and understanding of the steps of natural selection, explain how the change in the environment would affect the populations of bird species.

7. List and briefly explain two other characteristics (other than beak shape) that could help a bird survive if this were a "natural" environment.

1.

2.

8. Using at least three complete sentences, explain how this lab simulation provides support for evolution and the Theory of Natural Selection.​

Answers

The bigger beaks types of bird species were more adapted able to eat the larger and harder seeds so more of them survived.

What are types of beak among birds?

Meat-eater, Fruit-and nut-eater, Seed-eater, and Nectar-feeder beaks are seen among birds differentiated based on the nutrition and food consumed.

What three adaptations do birds have?

Beaks (bills), feet, and plumage, in particular, are three physical traits that show distinct environmental adaptations (feathers). The mechanism of evolution that produces living organisms that are adaptable to their circumstances is natural selection.

What technique backs up the hypothesis of evolution?

Evolution is supported by fossil data. Numerous fossils' geographic details show that two species with a shared origin can evolve differently in various environments. An organism can be thought of as an early form from which later forms descended.

Learn more about evolution here:

brainly.com/question/2725702

#SPJ1

Can a person have DID (Dissociative Identity Disorder) and BPD (Borderline Personality Disorder) at the same time?

Answers

Answer:

Yes, it is possible for a person to have both DID and BPD at the same time. According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), a person can be diagnosed with both disorders if they meet the criteria for both.

Explanation:

Explain the application of biology especially the role of microbiology and biotechnology for the growing public and global health needs
A, in the development effective diagnostics ,prevention ,and treatment measures including production of novel drugs and recombinant vaccine
B,in the production of nutritionally enriched genetically modified crops and anmimals to alloviate food insecurity which is a common dilemma particularly in underdeveloped countries

Answers

The role of microbiology and biotechnology is very crucial for the growing public and global health needs because it has a great contribution to humans.

What is the application of biology to biotechnology?

Biotechnology is defined as the use of biology to solve problems and make useful products with the help of microbes. The most prominent approach is genetic engineering which enables scientists to alter and modify an organism's DNA. Microbiology has proved to be one of the most significant fields in biology, making it possible to define microorganisms that cause diseases, discover treatments for different diseases, and use microbes for industrial applications, etc.

Each human body hosts about ten microorganisms for every human cell, and these microbes help in digestion, produce vitamin K, enhance the development of the immune system, and remove harmful chemicals. Microbes are essential to making many foods such as bread, cheese, wine etc.

So we can conclude that the application of biology especially the role of microbiology and biotechnology leads to the welfare of humans.

Learn more about microbiology here: https://brainly.com/question/13022613

#SPJ1

Ms. King's class is planning an experiment to find out the average number of sunny days per week this October for their city.

Answers

Use a graph if that is the answer you are looking for. Or use the data they find and put that on the graph or how many cloudy days vs sunny days or rainy days

HELP LIMITED TIME!!!!!!!!!
Solar, wind, wave, and nuclear energy are all ways of producing
energy without producing the negative outcome of:

Select one:

1, Decreased oxygen levels
2, Habitat loss
3, Increased greenhouse gas emissions
4, Non-native species

Answers

Answer:

3. Increased greenhouse gas emissions

Explanation:

Solar, wind, wave, and nuclear energy are all ways of producing energy without producing the negative outcome of increased greenhouse gas emissions. Greenhouse gases, such as carbon dioxide and methane, are released into the atmosphere through the burning of fossil fuels, such as coal, oil, and natural gas. These gases trap heat in the atmosphere and contribute to global warming and climate change. Solar, wind, wave, and nuclear energy, on the other hand, are forms of renewable energy that do not produce greenhouse gases when they are generated. They are considered more environmentally friendly alternatives to fossil fuels, and their use can help to reduce greenhouse gas emissions and mitigate the impacts of climate change.

please help answer the 3 questions

Answers

1. The flattened form of objects like leaves. inside the respiratory system, the alveoli. the gastrointestinal system's villi. 2. While turtles have specialized excretory openings, fish have gills.

What modification is necessary for a successful gas exchange, one example?

Alveoli modifications:

Moisture-filled walls: Gases dissolve in the moisture, which makes it easier for them to cross the gas exchange surface. Gases can travel through permeable walls. large blood supply, ensuring that blood rich in carbon dioxide is transported to the lungs and blood rich in oxygen is removed from the lungs.

Compare the Australian Fitzroy River turtle's gas exchange system to that of fish.

Gills are found in fish, while specialized excretory openings are seen in turtles. These gaseous exchange systems have a huge surface area, a plentiful blood supply, and are ventilated by water movement for a sharp gradient in concentration. The main distinction is where the gas exchange surface is located.

To know more about respiration visit:

https://brainly.com/question/29815765

#SPJ1

Match the phase described

Answers

The cell cycle can be explained as a sequence of events by which a cell duplicates its genome, synthesizes other cell constituents, and eventually divides into two daughter cells.

explanation

The two primary phases of the cell cycle are

1. The interphase It is the phase between two successive M phases. It follows cytokinesis. It is divided into G1, S, and G2 phases.The DNA replication occurs in the S phase of the interphase2. The M phase

The M phase has four stages

ProphaseMetaphaseAnaphaseTelophase

Cytokinesis follows the M phase.

The prophase is the first stage of the M phase. Here, the initiation of condensation of chromosome material takes place. As a result of this, the mitotic spindle is developed. The metaphase is characterized by the complete disintegration of the nuclear envelope. And, the chromosomes move to the spindle equator. In anaphase, two daughter chromatids are formed from the chromosomes. Telophase is characterized by the decondensation of the chromosome material and the formation of two new nuclei (Karyokinesis) and as a result, the mitotic spindle disappearsThe cytokinesis is the last step. Here, the cell gets divided into two daughter cells. In animal cells, it can be achieved by the appearance of a deep furrow in the plasma membrane. However, plant cells require a cell plate as they are enclosed by a cell wall.Conclusion

So, the final answers are,

Interphase - Replication of DNA and follows the cytokinesis.Prophase - Formation of the mitotic spindleTelophase - Mitotic spindle disappears as two new sets of chromosomes arrive at the opposite poles.Cytokinesis - The cell is split into two daughter cells and plants require the formation of a cell plate.

60 POINTS!!!!!
What would happen if a new predator were introduced to prey with which it has not coevolved?

Answers

Answer:

If a new predator were introduced to prey with which it has not coevolved, it could have a devastating effect on the prey species. The prey species may not have adapted behaviors or physical characteristics to protect themselves from the new predator, making them easy targets for predation. This could lead to a decrease in the prey population and an increase in the predator population, ultimately resulting in the destruction of the prey species. Additionally, the introduction of a new predator could disrupt the balance of the existing food web, which could have a ripple effect on other species in the ecosystem.

Explanation:

Answer: leading cause of extinction is the introduction of predators into an isolated system like an island or a lake

Mindy notices that her cat is having trouble urinating. The veterinarian suspects Mindy's cat has a urinary tract infection. Which body system does
this disease affect?
O A.
endocrine
OB. excretory
OC. respiratory
O D. circulatory

Answers

Answer:

The answer is B.excretory

Which term best describes the structure of a dragonfly with no bones and a bat with
bones?
O a. Homologous structures
Ob. Analogous structures
O c. Fossil records
O d. Vestigial structures

Answers

The corre answer is A

What would the genotype be for an orange kitty

Answers

Answer:

DNA

Explanation:

What does working out have to do with the characteristics of life? 100 POINTS!!!!!!!!!

Answers

Increasing life expextancy by several years.

Hope this helps!!

Answer:

Working out regularly can improve your muscle strength and boost your endurance. Moving our body delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.

By having more energy to do daily activities your life expectancy and quality can increase significantly.

Pls help me it’s due today at 11:59

Answers

The component of a vaccine that makes it effective is the antigen.

What is a Vaccine?

A vaccine is basically a biological preparation that provides active acquired immunity to a particular disease. It contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. Vaccines are designed to stimulate the body's own immune system to protect the person against subsequent infection or disease.

11) An antigen is a substance that causes the body to produce antibodies when it enters the body. These antibodies help the body recognize and fight the antigen if it enters the body again.

12) A vaccination is a way of introducing a weakened or killed version of a particular virus, bacteria, or toxin into the body. This weak or dead version of the virus, bacteria, or toxin stimulates the body's natural defense system to produce antibodies that are specific to that virus, bacteria, or toxin. These antibodies can then recognize and fight off the real virus, bacteria, or toxin if the body is ever exposed to it, thus preventing the individual from getting the disease. This is known as active immunity. The immunity created by the vaccination is typically long-lasting, and in many cases, lifelong.

To know more about vaccine,

https://brainly.com/question/625596

#SPJ1

What forms from the union of the sperm cell and the egg cell?

A.zygote

B.haploid cell

C.gamete

Answers

Answer: A

Explanation:

Matter Movement In
Where are molecules coming from?

Biosynthesis for growth

Answers

Biosynthesis for growth; In matter movement, molecules come from leaves and plant system.

What is Biosynthesis?

The production of complex molecules within living organisms or cells is known as biosynthesis. Chemical reactions and pathways that result in the formation of substances; typically the energy-intensive part of metabolism in which simpler substances are transformed into more complex ones.

Simple compounds are modified, converted into other compounds, or joined to form macromolecules during biosynthesis. This procedure frequently involves metabolic pathways. Matter is cycled through the ecosystem via a series of food chains, food webs, and nutrient cycles. Because all organisms are interconnected, matter is transferred from one to another. These macro molecules come from leaves and plant system.

Learn more on biosynthesis here: https://brainly.com/question/28557548

#SPJ1

Put the following in order from
Oldest to Youngest
Unicellular Eukaryotes
Multicellular Eukaryotes
Heterotrophic Prokaryotes
Autotrophic Prokaryotes

Answers

From an evolutionary point of view prokaryotes preceded eukaryotes. Therefore it can be said that prokaryotes are older than eukaryotes.

Multicellular organisms evolved from the unicellular eukaryotes at least 1.7 billion years ago. Some unicellular eukaryotes form multicellular aggregates that appear to represent an evolutionary transition from single cells to the multicellular organisms.

The first life forms on earth were heterotrophs and atmosphere was reducing. The advent of first autotrophs also however did not immediately make the atmosphere oxidizing

The first life on the Earth began more than 3.8 billion years ago with individual cells that did not contain nuclei known as prokaryotes. These first living cells were heterotrophs meaning that they were dependent on the external nutrition sources

The earliest cells were probably the heterotrophs. Most likely they got their energy from other molecules in organic “soup.” However, by about 3 billion years ago new way of obtaining energy evolved. This new way was the photosynthesis.

learn more about eukaryotes and prokaryotes at

https://brainly.com/question/1288013

#SPJ1

What does it mean to have a mutation in a cystic fibrosis gene

Answers

Answer:In cystic fibrosis, a defect (mutation) in a gene — the cystic fibrosis transmembrane conductance regulator (CFTR) gene — changes a protein that regulates the movement of salt in and out of cells. The result is thick, sticky mucus in the respiratory, digestive and reproductive systems, as well as increased salt in sweat.

Explanation:

mkaqvzcdwp how many types of plants are there

Answers

Answer:

There are more than 60 types of plants

Explanation:

Hope it helps you

PLS RATE AS BRAINLIEST ANSWER

If a purchaser enters a futures contract with an agreement to buy a crop for $200 per ton next month, which of the following demonstrates the result of the price rising to $225 at that time?

Responses


The purchaser would still pay only the $200 for the commodity

The purchaser would have the option of cancelling the deal or paying the extra $25 per ton.

The purchaser would be let out of the deal and a new deal would be created.

The purchaser would be required to pay the extra $25 per ton.

Answers

Answer:

A futures contract is a legal agreement to buy or sell a particular commodity asset, or security at a predetermined price at a specified time in the future.

With this the answer would be the first option “The purchaser would still pay only the $200 for the commodity” sense it was a predetermined price.

Explanation:

Other Questions
What does Kant say about enlightenment? [tex] \: \: \: \: \: \rm \: 25x {}^{2} = - 25 + 50x[/tex]Find possible values of x Is it -Claim-CounterClaim-Rebuttal What setbacks does Brian experience in Chapter 16 and how does he respond to these setbacks? Select the correct answer.Which expression is equivalent to 48x^5, if x > 0?O A.123xOB. 423O c. 4x3xOD. 12xx Solve this problemStep by step Find the volume of the cylinder to the nearest tenth. Use 3.14 for4 in.I7 in.in If working on a project that investigates the daily lives in Japanese internment camps during WorldWar II, what media form would work best to describe this situation? Why? Middle-aged couples often find themselves raising their children and caring for their elderly parents. This group is called the __________ . What is the tone and mood of The Gift of the Magi? 1. |2x + z| + 2ya = 2, b = 3, c = 2, x = 2.1, y = 3, and z = 4.2.2. 4a |3b + 2c| Jasmine has played basketball since she was six years old. Each winter, she starts practicing for her local team. This year, she has decided to take a job at a supermarket. Jasmine is not able to do both activities, because her shift at the supermarket would begin before the team's practices would end. Based on what you have read, if Jasmine works at the supermarket, what is her opportunity cost Which of the following is not characteristic of band-level societies? an egalitarian social structure, nuclear families, the sexual division of labor, permanent villages, mechanisms of social control What was the Selective Service Act and how did it impact the war? You are a doctor in a small CityTwo weeks ago, the City was a legal marijuanamunicipality (For Medicinal Use only) but later decided not to participate in the legalized trade What is the legal ramification of your decision How did the Lend-Lease Act bring the US closer and eventually into WWII? This cartoon is from 1919. The Big Four leaders are standing on a pill bottle and force-feeding a pill to a figure representing Germany. The pill says "peace terms. " A hand is holding Germany in place, and each finger has the name of an Allied country. The Big Four are saying, "You've got to swallow it whether you like it or not!" What is the message of the cartoon? How can you tell if your presentation is clear and concise? A. Your speaking notes are fewer than three pages long. B. Your listeners are able to summarize the ideas in your speech. C. You were prepared for the presentation in less than a week. D. The presentation uses only one- and two-syllable words. HelpppppppWrite the expression as a unit rate.Joyce painted 8 window frames in 5 hours while earning money for college.What was her painting rate in window frames per hour?What was her painting rate in hours per window frame? If the sticker represents the location of your school ,is the sun rising,overhead,or setting on tour school?