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 ✌
What is the primary reason the body needs nutrients?
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.
Write a Paragraph on who started the first blood Bank/history
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:
What would happen if you took 10 kittens and 10 puppies and created a 2 acre place on the moon with food and water
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
natural resources are important for proper growth development and survival justify this statement
Answer:
............................................
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
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.
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
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.
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.
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
underweight refers to being less than ten percent below the ideal outweight for ones height and bone structure
What are the things that you wanted to advice to young teens today about courtship?
The author includes several definitions of wellness in order to
Answer:
Demonstrate that there are several ways to express what wellness means.
Explanation:
I majored in Health
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.)
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
.Why is physical education important to my health?
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:
These foods are good source of complete protein except:
a.Eggs
b. Bread
c. Soybeans
d. Meat
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
When getting advise, you need to use your?
A: listening skills
B: refusal skills
C: goal-setting skills
D: decision-making skills
Answer:
listening skills because when you don't listen you end up going up with nothing
Essential nutrients are substances that the body cannot make in a quantity needed to sustain life. true or false
Answer:
true
Explanation:
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?
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
2. Blood carries nutrients and what important gas?
what do you mean by sex education?
Answer:
or its called health class
Explanation:
education is education about how the female and male body works and reproducing works
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
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 :)
A resting neuron has a more ___________charge on the inside of the cell membrane compared to the outside.
Answer:
POSTIVE
Explanation:
When not even your counselor cares about you and leaves you on seen when you open up to her ✌
File a report on her because thats literally her job
Answer:
omg did that actually happen
Name three characteristics of Mental/Emotional health.
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:
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
Answer:
D. Demonstrate that there are several ways to express what wellness means.
Explanation:
I majored in Health
Goals that give you a clear idea of what you want to achieve are
Answer:
I am sorry but I do not understand
Explanation:
How was your Valentine’s Day? I spent it hanging out with my baby cousin.
Literally just a normal day for me. Too bad i dont have someone to spend time with
Teens have a lot in common with the elderly.
True
False
Answer: I think it is false
Explanation:
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
Answer:
Explanation:
Sometimes I just wanna die but there's only one person that ever stops me from dying. I love him sm <3
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
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:
What
are three (3).physical attribute domains to assist athletic performance.
Answer:
vvvvvvvvvvvvvvvvvvv
Explanation:
Which of the following foods is NOT an example of a protein? *
- eggs
- chicken
- steak
- orange
Answer:chicken
Explanation: