which part of the respiratory system carries out gas exchange?

Answers

Answer 1

Answer:

Alveoli

Explanation:

The lungs are complex organs, subdivides in something called alveoli, where the gas exchange is presented.


Related Questions

why is cassava cake unhealthy

Answers

Answer:

it is not good to the body

Explanation:

it is unhealthy to the body because it causes cyanide poisoning when prepared or consumed in large amount

this layer of the skin is also called the hypodermis because it lies under the dermis

Answers

Answer:

subcutaneous layer or superficial fascia

Explanation:

the subcutaneous layer is a layer directly below the dermis and serves to connect the skin to the underlying fascia (fibrous tissue) of the bones and muscles

In general, individual sports require better cardiorespiratory fitness. Please select the best answer from the choices provided. T F.

Answers

Answer:

True

Explanation:

Answer:

TRUE

Explanation:

can you become lactose intolerant as you get older

Answers

Answer:

Normal aging may make you more sensitive to digestive disturbances, such as feeling bloated after meals

Explanation:

Answer: Yes

Explanation: It’s common to notice the signs of lactose intolerance come up as you age. It’s is also chronic condition.

the point where the trachea divides into right and left primary bronchi is a ridge called

Answers

Answer: the carina

The trachea divides into the right and left primary bronchi at the inferior end, each of which extends to a lung. The inferior tracheal cartilage forms a ridge called the carina.

Which technology would be best in locating soft tissue injuries?

Answers

Answer:

A MRI is a useful tool for diagnosing soft tissue injuries. It shows clarity of the injury unlike regular x-rays.

Explanation:

you may observe a change in the skin potential even before the stimulus is delivered. how can you explain this?

Answers

This is because anticipation of the tap, a change in sound in the environment that signals that the tap is about to happen.

bacteria, viruses, protists, parasites, and fungi can all cause disease and can be referred to as ______.

Answers

Answer:

Bacteria, viruses, protists, parasites, and fungi can all cause disease and can be referred to as infectious diseases.

A infectious disease spread through the transfer of bacteria.

I hope this helped at all.

When dopamine kicks in, we begin the physical transition into adulthood and are forced to see ourselves differently—forced to accept a newer version of ourselves.


A.

True

B.

False


Help me no fake answers plz

Answers

Answer:

True.

Explanation:

I hope this helps, Happy Thanksgiving!

I always get full but there are only 1-3 bites left on my plate. Why does this happen?

Answers

Answer:

First bite syndrome is a side effect of some surgical treatments for head and neck cancer that is thought to be caused by nerve damage. It can also be caused by a head and neck tumor itself. The syndrome causes pain in the mouth that is triggered by salivation or when taking the first few bites of food during a meal. The pain can be described as intense, sharp, or like a muscle spasm. The pain is usually felt in the parotid (salivary gland) region, which is in the back of the mouth close to the ears, and is usually only felt on one side. The pain lessens with each bite of food but will return if there is a break in eating. First bite syndrome can start anywhere from days, to months, to years after treatment. This side effect can resolve on its own, but there are some treatments that can be helpful for this side effect.

Explanation:

*sigh*

The human stomach is an extremely acidic environment. This allows the stomach to break down food so nutrients can be absorbed as it moves through the digestive system. Stomach acid is more acidic than lemon juice, which has a pH of around 2. 0. Which could possibly be the pH of gastric acid? 3. 5 7 2001. 2 9. 1.

Answers

Answer:

1.2 pH

Explanation:

I hope this helped!

Answer:

guy above is right give him brainliest

Explanation:

what was leeuwenhoek contribution to the cell theory

Answers

Answer:

Unicellular bacteria

Explanation:

Leeuwenhoek contributed to the cell theory unicellular bacteria in 1674. His contribution to cell theory was the word "cell" and his discovery of cells in a peice of cork. Identify the advance that enabled Leeuwenhoek to view the first living cells.

5 ways to resolve conflict

Answers

[tex]\huge\bold\blue{answer}[/tex]

5 ways to resolve conflict are :

avoiding defeatingcompromising accommodatingcollaborating.

They are

Always try to avoid the conflict If it's repeating then defeat the conflictTry to compromise to avoid conflictTry to coordinate or cooperateTry to accommodate

Fill out the chart each time you eat. After a few days, look for patterns in your food choices, and share what you have learned. What do you predict might influence people to make certain food choices? What are at least two internal influences and two external influences on your food choices? Explain how you can use this information to make healthful food choices.

Answers

Answer:

I predict that more people will start to eat a healthy breakfast every morning and be more active through out the day .

cleanliness , and texture can be internal influences , Eggshells , Outer shell membrane .

I can use this information by knowing when and what i am eating to stay healthy.

Explanation:

nicotinic and muscarinic receptors are classified as

Answers

Nicotinic and muscarinic receptors are classified as cholinergic receptors.

A cholinergic receptor is an acceptor membrane protein for acetylcholine and its agonists.

Acetylcholine mediates neural transmission at the ganglionic synapse of both systems - sympathetic and parasympathetic.

They differ in nicotinic (inhibited by curare) and muscarinic (inhibited by atropine) receptors, the activation of which leads to different biological effects.

Therefore, we can conclude that acetylcholine acts through two types of cholinergic receptors: muscarinic and nicotinic.

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how long does it take to die from a rattlesnake bite

Answers

Answer:

You'll begin to see symptoms immediately, but your symptoms will worsen over time. Ideally, you'll reach medical help within 30 minutes of being bitten. If the bite is left untreated, your bodily functions will break down over a period of 2 or 3 days and the bite may result in severe organ damage or death

Explanation:

brainliest pls☺️

Which of the following BEST represents the causes of stiff muscles? A. Stiff muscles only result from overwork. B. Stiff muscles only result from prolonged periods of inactivity. C. Stiff muscles result from both over- and underworking them. D. Stiff muscles are mostly the result of painful injuries. Please select the best answer from the choices provided. A B C D.

Answers

Answer:c

Explanation:

im doing da test

Stiff muscles result from both over- and underworking them.

What causes stiff muscles?

Stiff muscles can result from a variety of factors, including overuse, prolonged periods of inactivity, and certain medical conditions. Overworking muscles, such as by engaging in intense exercise without proper rest and recovery, can lead to muscle stiffness and soreness. On the other hand, prolonged periods of inactivity, such as sitting for long periods of time or not moving around enough, can also lead to muscle stiffness.

Certain medical conditions, such as arthritis and fibromyalgia, can also cause muscle stiffness. In these cases, the stiffness is often accompanied by pain and other symptoms.

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1. How does heavy consumption of alcohol affect the reproductive system of humans?

It shrinks the size of the testicles.

It increases the frequency of menstruation in women.

It increases testosterone production and sex drive in men.

It increases testosterone production in women.

Answers

Answer:

3

Explanation:

Heavy consumption of alcohol induces shrinkage of male testicles, affect male reproductive system. Hence, option A. It shrinks the size of testicles is correct.

What is human reproductive system?

In male reproductive system the sperm cells are produced by testicles which are transferred to female for fertilization.  

The Leydig cell of testicles involve in the production a hormone called testosterone responsible for male characteristics.

Alcohol consumption decrease the hormone secretion in hypothalamus, production of testosterone by leydig cell of testes and also luteinizing hormone, follicle stimulating hormone production by anterior pituitary gland.

Heavy alcohol consumption in female will affect the growth and puberty and it may increase the frequency of menstruation.

Heavy drinking of alcohol causes the shrinkage of testicles, affects its shape and size. Hence the quantity of sperm and testosterone hormone production decreases, ultimately lead to male infertility. Thus, Option A is correct.

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Muscular dystrophy is an inherited disease. Over time, genetic defects weaken skeletal muscles. What problem can weakening skeletal muscles cause?


loss of involuntary muscle control

difficulty standing and walking

damage to spongy bone

loss of bone marrow

Answers

Answer:

just Do it yourself

Write your own nursery rhyme

Answers

Answer:

...

Explanation:

there was a man named john,

he was really kinda fond

he loved to play with all the children

theyd meet up at the pond

to watch the frogs skip with joy

generate the smile of a little little boy

one day the man named john

well he was gone

so the little little boy played at the pond

where is john said the boy to the toad

oh that is what i dont know said he

he skipped off merrily but no john was there to see

oh where oh where did john go

Oh nobody knows

how will water loss due to sweating change blood osmolarity?

Answers

Answer:

Total body water loss (ΔTW) was estimated from body weight loss. Total sweat loss was calculated by subtracting total urine loss from total body water loss, assuming that water loss due to respiration was negligible (Morimoto et al., 1981)

Explanation:

what receptor do you think is responsible for adjusting from bright light to darkness

Answers

Photoreceptors known as rods

During which trimester does the fetus gain the most weight?

Answers

Answer:

A fetus usually gains the most weight during the third trimester. They will gain an average of 5 lb and grow around 4–6 inches during the third trimester, according to the OWH . In addition to the weight from the growing fetus, the body also gains weight from: the placenta

A doctor confirms that an individual has HIV. Which treatment will the doctor most likely prescribe? antibiotic medication antiretroviral therapy homeopathic medicine pre-exposure prophylaxis.

Answers

Answer: antiretroviral therapy

Explanation:

Answer:

Its B, Got it right on edge

Explanation:

Trust

bodyweight exercise that works the chest and triceps

Answers

Weightlifting
Push-ups
Sit-ups
Planks

a puppy weighs 2.0 pounds at birth and 3.5 pounds two months later. if the weight of the puppy during its first 6 months is increasing at a rate proportional to its weight, then how much will the puppy weigh when it is 3 months old?

Answers

Answer:

4.6 pounds

Explanation:

I hope this helps!

The puppy weigh when it is 3 months old is 4.6 pounds.

How will you define weight?

The quality of being heavy; that property of bodies by which they tend toward the center of the earth; the effect of gravitative force, especially when expressed in certain units or standards, as pounds, grams, etc

It is the measure of the force of gravity acting on a body. The formula for weight is given by: w = mg. As weight is a force its SI unit is also the same as that of force, SI unit of weight is Newton (N).

The weight of an object due to the influence of gravity would be different on the Earth than on the Moon. The weight formula can be explained as follows: Weight = mass × gravity. The formula for this is: w = mg.

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current research suggests that most eating disorders are caused by

Answers

It can be caused by many things:
Bullying
Social pressure
Negative thoughts
Body dysmorphia
Unrealistic body standards

Things like that

Which of the following statements is NOT true about alcohol? A. Alcohol content, which can be found on the label, is expressed as a percent. B. Alcohol is a depressant, which means it speeds up the nervous system. C. Before alcohol is metabolized in the body, it is an active brain drug and a cellular toxin. D. Alcohol is created when grains, fruits, or vegetables are fermented. Please select the best answer from the choices provided. A B C D.

Answers

Answer:

B

Explanation:

A depressant decreases the speed of the nervous system.

Answer:

Its B

Explanation:

I took the test and got it right

how long does it take for a broken clavicle to heal

Answers

Answer: About 6 to 8 weeks for adults can take longer for Children.

Explanation: A clavicle bone heals slowly, during the healing process it can shorten the bone.

Answer:

In adults, it usually takes about 6 to 8 weeks for a broken collarbone to heal, although it can take longer. In children, it usually takes about 3 to 6 weeks to heal.

Explanation:

have a wonderful day!! :)

what is the highest risk of exposure to hazardous drugs?

Answers

The highest risk of exposure to hazardous drugs occurs during the preparation of the drugs because they are at their most concentrated state.

Hope this helps you!

Because the hazardous substances are in their most concentrated form when they are being prepared, this is the phase of the process that has the greatest potential for exposure to the substances.

What are hazardous drugs?

A drug is considered to be hazardous if it exhibits one or more of the following characteristics in experimental animals: genotoxicity, carcinogenicity, teratogenicity, or fertility impairment; serious organ or other toxic manifestation at low doses; or serious organ or other toxic manifestation at low doses.

In Group 1, we have the anticancer medicines (roughly, chemotherapy medications). Group 2 consists of potentially dangerous pharmaceuticals that are not antineoplastic, and Group 3 includes medications that may inhibit fertility in either men or women, as well as those that may pass into breast milk.

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