HURRY PLZ 40 POINTS
Which statement best explains why blood is “waste-rich” when it returns to the heart?
The blood has a high concentration of oxygen and a low concentration of carbon dioxide.
The blood has a high concentration of oxygen and a low concentration of hemoglobin.
The blood has a high concentration of carbon dioxide and a low concentration of oxygen.
The blood had a high concentration of hemoglobin and a low concentration of oxygen

Answers

Answer 1

Answer:

the blood has a high concentration of hemoglobin and a low concentration of oxygen


Related Questions

Which scenario best describes a short-term challenge and an effective strategy to manage it?

Drew is facing the end of the school year, and he has six Advanced Placement exams scheduled. He chooses the courses in which he feels the most studying is required and focuses only on those courses since it's too overwhelming to study for all six.

Fareed has just been diagnosed with type 2 diabetes, which he will battle for the rest of his life. He has consulted with a nutritionist for dietary advice and ordered multiple books on managing diabetes to learn how to keep his blood glucose levels in the healthy range.

Maja is about to be a senior, and it's time to choose the best college at which to study her chosen major. She schedules time each week to research one potential college and list out the pros and cons for their academic programs.

Nicoletta has always dreamed of becoming a famous musician, but she is learning that playing an instrument is not fulfilling and too difficult for her. She ditches plans to work in the music industry at all, and instead starts researching careers in other industries.

Answers

Answer:

Maja is about to be a senior, and it's time to choose the best college at which to study her chosen major. She schedules time each week to research one potential college and list out the pros and cons for their academic programs.

Explanation:

Answer:

it is the third one i took the test

Explanation:

What is Physical Education?​

Answers

Answer:

physical exercise

Have a good day

Hope this helps

Physical Education is instructions in exercises and games.

This happens especially at school.

1. Explain the difference between infectious and noninfectious diseases and give examples of each.

Answers

Answer: Infectious diseases are transmitted from person-to-person through the transfer of a pathogen such as bacteria, viruses, fungi or parasites. A non-infectious disease cannot be transmitted through a pathogen and is caused by a variety of other circumstantial factors.

Explanation:

This is the site I got my info from:

Difference Between An Infectious & Non-Infectious Disease ...https://www.childfund.org.au › stories › what-is-the-differ...

So not my words!  I hope this helps!

Answer:

Infectious diseases are diseases that are spread from person to person, through the transfer of a pathogen such as bacteria, viruses, fungi etc. They are also called communicable diseases. Examples are SARS, influenza, the common cold, tuberculosis (TB) etc.

Whereas non-infectious diseases cannot be transmitted through a pathogen and are caused by a variety of other circumstantial factors. They are also called non-communicable diseases. Examples of non-infectious diseases include cancer, Alzheimer's disease and epilepsy.

(you could present the above in a tablular form or by pointwise differentiation.)

hope it helps :)

A supplement that claims to melt off weight when taken daily as part of a normal dietary plan has generated much interest. The supplement comes from the extract of a raspberry. Many websites are dedicated to promoting the pill, but scientists have published results showing insufficient evidence to draw such conclusions.

This claim is an example of
.

Answers

Answer:

a nutritional myth

Explanation:

Answer:

✔ a nutritional myth

Explanation:

Just got it correct on Edge

Explain when or why you would pack a wound in the shoulder.

Answers

Answer:

When a wound is deep, or when it tunnels under the skin, packing the wound can help it heal. The packing material absorbs any drainage from the wound, which helps the tissues heal from the inside out.

Explanation:

How do twins happen? Fraternal vs. Identical

Answers

Answer:

Fraternal - 2 egg cells

Identical - split of zygote

Explanation:

Fraternal twins are likely to be formed by 2 different egg cells being simultaneously sent by the ovaries and both of them being fertilized by the sperm cells. They are non-identical because the DNA of the 2 egg cells and the 2 sperm cells are different.

Identical twins are formed after a single egg cell has been fertilized by a single sperm cell, then split after the first division. This results in 2 genetically identical embryos because they were formed from the same fertilized egg.

Answer: fraternal twins happen when superset sperms enter separate eggs but they fertilize together. Identical happen when the fertilized egg divided in two while it is still a tiny collection of cells. The sled contained halves then develop into two babies with the same genetic information.

Explanation:

PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

True or false: If an injury occurs in the lumbar region of the spinal column, loss of sensation can occur in all 4 limbs.

True

False

Answers

Loss of sensation in all four branches can do if the lumbar portion of the spinal column is injured. This statement is true.

A spinal cord injury causes damage to the spinal cord or conterminous apkins and bones. You may lose function or mobility in different sections of your body depending on the inflexibility of the injury. Surgery, drug, and physical remedy are all options for treatment. A more recent system seeks to stimulate performing jitters.

The spinal cord transmits dispatches from the brain to the rest of the body. The spinal cord is girdled and defended by layers of towel called meninges and a column of chines( spinal bones).

The maturity of spinal cord injuries are caused by a quick, severe blow to the chines. The spinal cord and its jitters are also damaged as a result of the shattered( broken) bones. An injury can completely ramify or resolve the spinal cord in rare situations.

To know more about spinal cord:

https://brainly.com/question/31838423

#SPJ1

define first aid.write down its objectives​

Answers

The goals of first aid are the preservation of life; Avoid physical and psychological complications; assist recovery, as well as ensure the transfer of the injured to a care center

When you position a resident on their back their legs should normally be positioned

Answers

Legs are positioned in a straight line with knees slightly at approximately 5 degrees to 10 degrees,2 and not touching. Positioning the knees in slight flexion prevents popliteal vein compression and reduces the patient's risk for Deep Vein Thrombosis (DVT).

Kai wants to get in shape for basketball season. He has heard that weight loss supplements can really help. He knows that he should probably talk to his doctor, but he does not think that anything sold at a nutrition store can be bad for him. What is the BEST advice for Kai?

Answers

He should go talk to his doctor because some can cause serious side effects.

The best advice which can be given to Kai for weight loss is that the supplements can be harmful, so he should check with his doctor before using any supplement.

What are the dietary supplements?

Dietary supplements are the food sources which are intended to add to or supplement the diet and these are different from the conventional food products. Generally, to the extent these products are intended to treat, diagnose, cure, or prevent diseases. It is a kind of drug, even if it is labeled as a dietary supplement.

Dietary Supplements are meant to be consumed as a source of nutrients to address a gap in the nutrients or, more often, to establish a consistent intake of a certain set of nutrients in the diet. Many consumers also take dietary supplements for specific health or functional benefits. These supplements are found to be good for health however there are a number of risk factors are also associated with these supplements.

Learn more about Dietary supplements here:

https://brainly.com/question/10912932

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When performing rhythmic patterns of movement to music, what determines the speed of movement?
the tempo of the music

the complexity of the rhythm

the number of repeated beats

the number of people involved

Answers

I believe it’s the first option, because we basically move to the tempo of the beat to songs

Gusto ko magkaroon ng _____ upang ako ay _____

Answers

Answer:

Gusto ko magkaroon ng laptop upang ako ay makapag online class.

What should I order from McDonald's? best order gets brainliest​

Answers

You know why I'm here

* Sicko Mode Noises *

I need this ASAP like in 10-15 min

A player makes shots from these five spots
on the court. How many polnts does she
score in total?

Answers

Answer:

she scores 5

Explanation:

because theres five spots on court n didnt miss one

Answer:

12

Explanation:

3- 2 pointers = 6

2- 3 pointers = 6

Which body type would a football coach look for in a player that needs to outrun and out-jump the competition?
ectomorph
mesomorph
polymorph
endomorph

Answers

I think the answer is ectomorph
Ectomorph because they are the ones who are in shape and can build muscle easily

Why do we need to understand the importance of an incident reports?

Answers

They provide a reminder of possible hazards. Reporting them provide a way to monitor potential problems and root causes as they recur. The documentation of these problems and root causes increases the likelihood that repeating failures will be noticed and corrected before they develop to more serious incidents.

Select the correct answer.
How is the score determined in the 8 foot get up and go test?
A.
Two attempts at the test are made and the time is averaged.
B.
Two attempts at the test are made and the faster time is used.
C.
Three attempts at the test are made and the middle time is used.
D.
One attempt is made, and that is the time used.

Answers

Answer:

b

Explanation:

2 attempts are made and the best time is used.

scoring: Take the best time of the two trails to the nearest 1/10th second. Below is a table showing the recommended ranges in seconds for this test based on age groups

B is the answer to the question

explain the process/chain of infection

Answers

Answer:

The spread of an infection within a community is described as a “chain,” several interconnected steps that describe how a pathogen moves about. Infection control and contact tracing are meant to break the chain, preventing a pathogen from spreading.

what called the corner kicks of futsal?

Answers

Answer:

FIFA

this is the correct answer

Explanation:

is this correct

After donating its phosphate molecule to adenosine diphosphate (ADP), which compound helps restore creatine phosphate to its original?
A. creatine sulphate
B. creatine oxide
C. creatine kinase
D. creatine nitrate

Answers

Answer:

creatine kinase

Explanation:

Enzymes are biochemical catalysts which speed up various chemical reactions in the body. These enzymes are proteins. They work based on a lock and key model which enables them to fit only into specific substrates.

Creatine kinase, is an enzyme which is known to use adenosine diphosphate to create creatine and adenosine triphosphate.

Hence, by donating its phosphate molecule to adenosine diphosphate (ADP), creatine kinase helps restore creatine phosphate to its original.

If you wanted to go to a school with many activities and sports teams, which type of school would be the
MOST likely to be what you are looking for?
•career college
•university
•training program
•site-based program

Answers

training program most likely

an exercise stress test might be used when

Answers

Answer:

when your pregnant

how many liters of air pass through your lungs in an hour if each breath brings 1 liter of air into the body.

Answers

Answer:

960 liters in an hour.

Explanation:

paki sagot po asap



direction: group the following toolsequipment and paraphernalia according to thier classification


Dryer
foodprocessing
Stethoscope
Electri knife Iron
Ladle
Thermometer
Sphygmomanometer
Ironing board



used for meal|
1 |
2 |
3 |
used for cleaning laundry
and ironing
1
2
3
used for taking vital signs
1
2
3​

Answers

Answer:

Used for meal

1.Ladle

2.Electric Knife

3.Food Processor

used for cleaning laundry

and ironing

1.Dryer

2.Ironing board

3.

used for taking vital signs

1.Sphygmomanometer

2.Thermometer

3.Stethoscope

ExplanationHope it's help

Select the correct answer.
Social workers are rarely found in an office setting.
A.
True
B.
False

Answers

i think true

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

True they always walking around

Which of the following juices would not help prevent enzymatic browning in fruit?

Answers

You did not list the following juices or attach a picture

BROKEN!!! What happened?

Answers

Answer:

WDYM BROOOO???????

Explanation:

14. Two kittens in a litter are genetically different from
each other and from their parents. These genetic
differences are most directly due to
A.sexual reproduction
B. asexual reproduction
C. cloning
D. evolution

Answers

Answer:

A.sexual reproduction

Explanation:

The genetic differences between two kittens in a litter and their parents are directly due to se3ual reproduction.

What is reproduction?

Reproduction is the process whereby living organisms replicate themselves and create offsprings.

There are two types of reproduction namely:

Se3ual reproductionAse3ual reproduction

Se3ual reproduction involves the fusion of two organisms i.e. male and female. Se3ual reproduction produces offsprings that are genetically different from another.

Therefore, the genetic differences between two kittens in a litter and their parents are directly due to se3ual reproduction.

Learn more about reproduction at: https://brainly.com/question/14530382

can someone answer these 2 questions pls?​

Answers

Answer:

true and oxygen

Explanation:

dont quote me if its wrong

True - psychological dependence on something is needing it to function or to feel good, physical dependence is when the body has adapted to chronic intake of alcohol and if you stopped would subsequently suffer from physical symptoms

Oxygen

What does the medulla control?

your balance
sensory recognition
voluntary muscle movements
your heartbeat and breathing

Answers

its controls your heartbeat and breathing
Breathing and and
Heartbeat
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