There are two types of this tissue. It's main jobs are to protect the body, absorb nutrients and filter blood and secrete hormons.

Answers

Answer 1

Answer:

Key points

Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive.

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.

The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.

Introduction

If you were a single-celled organism and you lived in a nutrient-rich place, staying alive would be pretty straightforward. For instance, if you were an amoeba living in a pond, you could absorb nutrients straight from your environment. The oxygen you would need for metabolism could diffuse in across your cell membrane, and carbon dioxide and other wastes could diffuse out. When the time came to reproduce, you could just divide yourself in two!

However, odds are you are not an amoeba—given that you're using Khan Academy right now—and things aren’t quite so simple for big, many-celled organisms like human beings. Your complex body has over 30 trillion cells, and most of those cells aren’t in direct contact with the external environment.^11start superscript, 1, end superscript A cell deep inside your body—in one of your bones, say, or in your liver—can’t get the nutrients or oxygen it needs directly from the environment.

How, then, does the body nourish its cells and keep itself running? Let's take a closer look at how the organization of your amazing body makes this possible.

I hope it helps you ✌


Related Questions

which actions are recommended if a person wants to keep a healthy weight?
( pls answer quickly )
A. Eating low fat or extra lean meats
B. eating fish multiple times a week
C. eating a considerable number of high fat foods
D. eating low fat dairy products

Answers

Answer:

A. eating low fat or extra lean meals

Explanation:

for B it wouldn't be the answer because even though fish may be healthy eating an abnormal amount would not help lose weight or maintain your figure.  for C the wrong answer is just self-explanatory, it contains an large amount of fat.  for D the products may be low fat but diary is a product that contains a lot of fat in it so even with it being a low fat product it still has a high fat count.

The author includes several definitions of wellness in order to

make the concept confusing
indicate that health is a controversial topic
show that it is an exceptionally difficult term to define
demonstrate that there are several ways to express what wellness means

Answers

Answer:

D. Demonstrate that there are several ways to express what wellness means.

Explanation:

I majored in Health

2. Blood carries nutrients and what important gas?

Answers

Blood brings *oxygen* and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body. Blood also fights infections, and carries hormones around the body. i would say the “important gas” is oxygen

Goals that give you a clear idea of what you want to achieve are

Answers

Answer:

I am sorry but I do not understand

Explanation:

Be able to lift 210 pounds by July
Start to eat healthier


These are made up haha

Which of the following foods is NOT an example of a protein? *
- eggs
- chicken
- steak
- orange

Answers

Answer:chicken

Explanation:

Write a Paragraph on who started the first blood Bank/history

Answers

Answer:

One of the soonest blood donation centers was set up by Frederic Durán-Jordà during the Spanish Civil War in 1936. Duran joined the Transfusion Service at the Barcelona Hospital toward the beginning of the contention, however the clinic was before long overpowered by the interest for blood and the lack of accessible benefactors. With help from the Department of Health of the Spanish Republican Army, Duran set up a blood donation center for the utilization of injured officers and regular folks. The 300–400 ml of separated blood was blended in with 10% citrate arrangement in an altered Duran Erlenmeyer jar. The blood was put away in a sterile glass encased under tension at 2 °C. During 30 months of work, the Transfusion Service of Barcelona enrolled just about 30,000 givers, and handled 9,000 liters of blood.

Explanation:

As early as the 17th century, blood has been used as a therapy for a variety of ailments. Over the years, there have been many great advances and it is no wonder this precious resource is so valuable. Here is a look at some of the bigger milestones related to blood transfusion over the years.

1628 English physician William Harvey discovers the circulation of blood. Shortly afterward, the earliest known blood transfusion is attempted.

1665 The first recorded successful blood transfusion occurs in England: Physician Richard Lower keeps dogs alive by transfusion of blood from other dogs.

1818 James Blundell performs the first successful blood transfusion of human blood to treat postpartum hemorrhage.

1840 The first whole blood transfusion to treat hemophilia is successfully completed.

1900 Karl Landsteiner discovers the first three human blood groups, A, B and O.

1902 Landsteiner’s colleagues, Alfred Decastello and Adriano Sturli, add a fourth blood type, AB.

1907 Blood typing and cross matching between donors and patients is attempted to improve the safety of transfusions. The universality of the O blood group is identified.

1914 Adolf Hustin discovers that sodium citrate can anticoagulate blood for transfusion, allowing it to be stored and later transfused safely to patients on the battlefield.

1932 The first blood bank is established at Leningrad hospital.

1939-1940 The Rh blood group is discovered and recognized as the cause behind most transfusion reactions.

1940 The US government establishes a nationwide blood collection program.

1950 Plastic bags allowing for a safer and easier collection system replace breakable glass bottles used for blood collection and storage.

1961 Platelet concentrates are recognized to reduce mortality from hemorrhaging in cancer patients.

1970 Blood banks move towards an all-volunteer donor base.

1972 The process of apheresis is discovered, allowing the extraction of one component of blood, returning the rest to the donor.

1983 Stanford Blood Center is the first blood center to screen for AIDS contaminated blood, using a surrogate test (T-lymphocyte phenotyping) two years before the AIDS virus antibody test is developed.

1985 The first HIV blood-screening test is licensed and implemented by blood banks.

1987 Stanford Blood Center is the first in the country to screen donors for Human T-Lymphotropic Virus Type I (HTLV-I), a virus believed to cause a form of adult leukemia.

1990 A specific test to identify Hepatitis C is introduced.

2002 West Nile Virus is identified as transfusion-transmissible.

At Stanford Blood Center, we lead the fields of transfusion and transplantation medicine by advancing science and technology. We provide hope for the future by teaching the medical leaders of tomorrow. We enhance lives by connecting donors to patients every day.

This article is from the Centers for Disease Control and Prevention (CDC)’s Ambulatory Care Use and Physician Visits. This source shows data about the percentage of adults and children who saw healthcare professionals in the past year.
What makes this website a reliable source for your essay? Select all that apply.

ITS A .GOV SITE
It is a .edu site.
It is a .com site.
ITS AN ORGANIZATION'S WEBSITE
It is a personal website.

Answers

Answer:

The guy above me is right

Explanation:

The website that makes a reliable source for your essay should be the government site or the organization website.

Reliable source:

The reliable source are that source that should depend upon the strong evidence.

In the government site, or the organization site the information that is provided to the general public is mostly authentic.

It does not contain any kind of false information.

hence, The website that makes a reliable source for your essay should be the government site or the organization website.

Learn more about website here: https://brainly.com/question/21612382

Teens have a lot in common with the elderly.
True
False

Answers

Answer: I think it is false

Explanation:

Essential nutrients are substances that the body cannot make in a quantity needed to sustain life. true or false

Answers

Answer:

true

Explanation:

underweight refers to being less than ten percent below the ideal outweight for ones height and bone structure

Answers

True
Explanation:
I took health my sophomore year lol

Why is living so hard? Would dying make things better? Why do I feel like everyone hates me? It is for psychology nothing else. Take this down, please

Answers

Answer:

HECK NO MAN YOU ARE LIKE THE BEST RANDOM PERSOM BRO LIVE THIS LIFE LIKE NO OTHER SHOW DIRT WHOS BOSS SHOW YOUR BOSS WHOS BOSS DONT LET THAT LITTLE SPECK OF IMPORTANCE KNOWN AS YOUR BULLIES SHOVE YOU INTO THE GROUND

Explanation:

When not even your counselor cares about you and leaves you on seen when you open up to her ✌

Answers

File a report on her because thats literally her job

Answer:

omg did that actually happen

alright i'm probably gonna get this taken down but answer

but how are you? like seriously not the generic fake "fine" or "good" give me the REAL answer

Answers

Answer:

Explanation:

Sometimes I just wanna die but there's only one person that ever stops me from dying.  I love him sm <3

Which of the following is TRUE about assessing muscular strength and endurance?
A All muscle groups can be tested simultaneously
B. Muscle strength and endurance are always assessed together
C. Different muscle groups have to be tested separately.
D. One test can determine an individual's muscle group focus area

Answers

Answer:

C - Different muscle groups have to be tested separately.

Explanation:

Answer:

C Different muscle groups have to be tested separately.

Explanation:

A good explanation would be crunches---testing abdominal muscles, sit and push- hamstrings.

natural resources are important for proper growth development and survival justify this statement​

Answers

Answer:

............................................

1.) Why does it not hurt to get your haircut?

2.)On Average how many hairs fall out of someone's head on a daily basis?

3.) What makes your hair greasy/ shiny?

Answers

Answer:

1 because your hair will fall out eventually

2  50 to 100 strands a day

3 oil

Explanation:

Answer:

1.it depends on what type of cut you take if take a whole bald shave with blade you might get hurt or just simply cutting a hair don't hurt

2.It depends on your care of your hair if you shampoo it or comb it will be perfect or it's normal to shed between 50 and 100 hairs a day.

3.it makes it shiny when we shampoo it or keep our hair wet it shines and reflects the light.

hope it helps you

please mark me as brainlist

These foods are good source of complete protein except:

a.Eggs
b. Bread
c. Soybeans
d. Meat​

Answers

Answer:

B. Bread

Explanation:

Not every type of bread has protein. Only white bread has Protein. BUT it has a low percentage of Protein. VERY LOW. So I consider This Answer.

Answer:

A.eggs

Explanation:

im not sure but i wish it helps

What is the primary reason the body needs nutrients?

Answers

There are 6 essential nutrients that the body needs to function properly. Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes

MARK ME AS BRAINLIST

Answer:

There are 6 essential nutrients that the body needs to function properly. Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes.

Name three characteristics of Mental/Emotional health.​

Answers

Answer:

They feel good about themselves.

They do not become overwhelmed by emotions, such as fear, anger, love, jealousy, guilt, or anxiety.

They have lasting and satisfying personal relationships.

They feel comfortable with other people.

They can laugh at themselves and with others.

Explanation:

How was your Valentine’s Day? I spent it hanging out with my baby cousin.

Answers

Literally just a normal day for me. Too bad i dont have someone to spend time with

Awwww well I don’t celebrate Valentine’s Day but I hope yours was good

.Why is physical education important to my health?

Answers

Answer:

so you stay physically healthy

Answer:

By eliminating the chance of obesity, physical education also helps decrease the risk of diabetes, heart disease, asthma, sleep disorders, and other illnesses. Staying active and getting the required exercise helps with our cardiovascular health and helps with the development of our bones and muscles.

but i dont exercise so im a noodle lol

Explanation:

Jeremy wants to lose 10 pounds.

If he doesn’t change his diet, how many extra calories must he expend to be able to lose 10 pounds? ____________

If he burned an extra 350 calories each day doing extra physical activity and kept his energy intake the same, how many days would it take Jeremy to lose 10 pounds? _______________

(Hint: There are 3,500 calories in each pound of fat.)

Answers

Answer:

1) he will need to burn 35,000 calories

Explanation:

To lose 10 pounds he need to burn 35000 extra calories.

If he burned extra 350 calories each day, It would take him 100 days to lose 10 pounds.

What are calories?

It is a unit of energy. it is the energy people get from the food and drink they consume.

To know more about calories here

https://brainly.com/question/22374134

#SPJ2

OK. So, if me and this guy are doing long distance. What are the chances that he is probably with other girls because Im not there and does long distance ever really work out? please let me know yall

Answers

Depends if he’s faithful maybe

Answer: do you have trust in the relationship?

Explanation:

There's no definite way to know if he's faithful or not, I'm doing long distance too and I have full trust that my partner wouldn't cheat on me which is something people respect. You just need to have faith that he'll do the right thing and don't jump to conclusions immediately. He could be friends with other girls (nothing more) and that's okay, me and my partner will have been together for 5 months on the 27th of this month and it's going great atm, so I'd say it does, just trust him and if he treats you wrong or gaslights you (making it seem like nothing is his fault and is only yours) he's toxic and you should leave him. If you wanted you could talk to him about it and work something out, texting, face timing, calling him more, etc.

Good luck :)

When getting advise, you need to use your?

A: listening skills


B: refusal skills


C: goal-setting skills


D: decision-making skills

Answers

A. Listening skills

Answer:

listening skills because when you don't listen you end up going up with nothing

What
are three (3).physical attribute domains to assist athletic performance.

Answers

Answer:

vvvvvvvvvvvvvvvvvvv

Explanation:

strength, flexibility and good mobility

The author includes several definitions of wellness in order to

Answers

Answer:

Demonstrate that there are several ways to express what wellness means.

Explanation:

I majored in Health

What are the things that you wanted to advice to young teens today about courtship?​

Answers

Focus on yourself but not to the point where it’s selfish

A resting neuron has a more ___________charge on the inside of the cell membrane compared to the outside.

Answers

Answer:

POSTIVE

Explanation:

what do you mean by sex education?​

Answers

Sex education is education about how the female and male body works and reproducing works

Answer:

or its called health class

Explanation:

education is education about how the female and male body works and reproducing works

What would happen if you took 10 kittens and 10 puppies and created a 2 acre place on the moon with food and water

Answers

Answer:

XD

Explanation:

Depends did you or did you not dome the area and fill it with oxygen?

If you did then they would be happily floating around eating and playing.

If you didn't they would die and their bodies would float off into space with their food. Realisitcally speaking

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