During pulmonary ventilation, relaxation of the diaphragm and external intercostals ________ and air flows out of the lungs. increases the pressure in the thoracic cavity flattens the floor of the thoracic cavity increases the volume of the thoracic cavity expands the rib cage stimulates the phrenic nerve

Answers

Answer 1

Answer:

Increases the pressure in the thoracic cavity

Explanation:

During pulmonary ventilation, relaxation of the diaphragm and external intercostals increases the pressure in the thoracic cavity and air flows out of the lungs.

Pulmonary ventilation involves the exchange of air in the body. The exchange mainly takes place between the lungs and the the blood. When the lungs take in oxygen it distributes it to other parts of the body after which the byproduct is expelled in the form of Carbon dioxide.

The diaphragm and intercostal muscles are found close to the chest(thoracic) region such that when air is expelled it produces a similar effect such as relaxation of the diaphragm which also makes the chest muscles go down and exert pressure. This mechanism aids the expulsion of Carbon dioxide from the lungs.


Related Questions

Please I urgently need help with this

Answers

Answer:

A - Stigma

B - Anther

C - Filament

D -  Style

E - Ovary

F - Petal

Explanation:

The above are the correct answers of the image drawn in the attachment.

These are parts of a flower.

A - Stigma: It is the head of the pistil. It contains a sticky substance that catches pollen grains from other pollinators.

B - Anther: This is the head of the stamen. It produces pollen grain.

C - Filament: It is a long slender part of the flower. It attaches the anther to the flower.

D -  Style: It actually holds the stigma.

E - Ovary: It holds the ovule. Found at the base of the pistil.

F - Petal: It attracts pollinators to the flower.

Because the cells of skeletal muscle are relatively large and cylindrical in shape, they are also known as

Answers

Answer:

fibers or tubules.

Explanation:

Name the process by which sugar moves into cell A.
Name the process by which sugar moves into cell B.

Answers

Answer:

sugar moves into cell A by diffusion

sugar moves into cell B by Active transport

Name the process by which sugar moves into cell A - Diffusion

Name the process by which sugar moves into cell B - Active transport.

Glucose tends to move from an area of high concentration to an area of low concentration, a process called diffusion

the glucose transporter works with the concentration gradient, its process of moving glucose across the cell membrane is called facilitated diffusion.In order to move against the concentration gradient is due to cell require the transport method called active transportActive transport requires energy to move molecules against the gradient.

Thus, Name the process by which sugar moves into cell A - Diffusion

Name the process by which sugar moves into cell B - Active transport.

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Who are the units of Newtons named
after?
A. American scientist, Sir Isaac Newton
B. English scientist, Sir Isaac Newton
C. French scientist, Sir Isaac Newton
D. German scientist, Sir Isaac Newton

Answers

C french scientists, Sir lsaac newton
B English scientist Issac Newton was born in England

which of the following structures helps our sense of balance​

Answers

Answer:

D answer is correct

Explanation:

semi circular helps our sense of balance

Answer:

eardrum

Explanation:

The ear is a sensory organ that picks up sound waves, allowing us to hear. It is also essential to our sense of balance: the organ of balance (the vestibular system) is found inside the inner ear. It is made up of three semicircular canals and two otolith organs, known as the utricle and the saccule

A teacher gave the lab group shown below an "unsafe practice" warning. What is most likely the basis for the teacher's warning?

Answers

The teacher warning could be the practice you are about to do can harm you in some way if that careful. Please let me know if I'm understanding this.

Which organism exhibits behavioral adaptation?
an owl with large pupils and eyes that enable it to see better at night
a possum playing dead to increase its chances of survival
an insect that mimics its environment to hide from its predators
a desert plant that sheds its leaves to lessen water loss during the dry season

Answers

Answer:

B

Explanation:

edge2021

A possum playing dead to increase its chances of survival is an example of behavioral adaptation.

What is Behavioral adaptation?

This is an action an organisms does to increase survival rate when faced with some situations.

A good example is the possum which acts dead when faced with predators so as not to be killed which is why option B was chosen.

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Which structure is represented by the letter C?
Choose 1 answer:

A
Chloroplast

B
Mitochondria

C
Vacuole

D
Nucleus

Answers

Answer:

A. Chloroplast

Explanation:

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Answer:

A chloroplast

Explanation:

Which organism in the food web below is found in the first trophic level of the
ecosystem?

A. Fungus
B. Strangler fig
C. Fruit bat
D. Sloth

Answers

A fungus because all the other animals get energy from the plants

Fungus is the organism in the food web displayed in the image in the first trophic level of the ecosystem.

What is trophic level?

Trophic level is defined as the position of an organism in the food chain or food web.

The trophic level consists of organisms at different levels. The first trophic level is made up of producers that initiate the transfer of energy.

According to this question, an image showing a food web is given. The first trophic level in this food web is the fungus because it starts the energy transfer.

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How can a scientist determine if two species are obligate mutualists? The scientist should observe the species in the environment to determine the types of interactions that the two species have. Then, the scientist should transplant each species alone to a new area and simultaneously transplant both species together to see if the single-species transplants die. The scientist should observe the species in the environment, determine the types of interactions that the two species have, and then add an invading species to see if it outperforms one of the other species. The scientist should observe the species in the environment, determine the types of interactions that the two species have, and then transplant both species to a new location to observe if they do better or worse than the individuals in their old location. The scientist should observe the species in the environment, determine the types of interactions that the two species have, and then remove one of the species to see if the other species does not survive.

Answers

Answer:

The scientist should observe the species in the environment to determine the types of interactions that the two species have. Then, the scientist should transplant each species alone to a new area and simultaneously transplant both species together to see if the single-species transplants die

Explanation:

When two species are obligate mutualists, both species benefit one another in such a way that one cannot survive without the other. Hence, in order to find out if two species are indeed obligate mutualists, they should be transplanted together away from other species on one side, and also transplanted individually on another side.

If they are obligate mutualists, the individual transplant would find it difficult to survive and should die in no time while the transplant done together should survive. All other factors being kept constant.

How is an organic compound different from an inorganic compound?


Organic compounds contain carbon atoms bonded to other atoms.


Inorganic compounds contain oxygen atoms and hydrogen atoms.


Organic compounds come only from nonliving things.


Photosynthesis is responsible for organic compounds.

Answers

Answer:

The correct answer is

" organic compounds come only from nonliving things".

hope it helps you

plz mark me as brainliest

have a good day!

Organic compounds contain carbon atoms bonded to other atoms. The correct option is A.

What are organic compounds?

Any of a wide area of chemical compounds in which one or many carbon atoms are covalently connected to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

Carbides, carbonates, and cyanides are among the few carbon-containing compounds that are not classified as organic.

The main distinction between organic and inorganic compounds is that organic compounds always contain carbon, whereas most inorganic compounds do not.

Furthermore, almost all organic compounds contain carbon-hydrogen or C-H bonds.

Organic foods are grown without the use of synthetic pesticides, fertilizers, or herbicides.

Organic meat, eggs, and dairy products are derived from animals that have been fed natural feed and have not been given hormones or antibiotics.

Thus, the correct option is A.

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Need help please …..

Answers

The answer is either a or c
D
Is the correct answer

if masquiteos have babys in water then can the have babbies in fog

Answers

Maybe, mosquitoes lay eggs in still water like a in pail or bucket

Mosquitoes can lay eggs as long as they’re near a source of water or in water because the babies cannot survive without water

1) which of the following terms is defined as ''all the organisms living in a particular place and their interactions with each other and with their environment ''

A) habitat
B) population
C) community
D) ecosystem ​

Answers

Answer:

D) Ecosystem I think

Answer:

B. population

Explanation:

they are interact with each other

Betty's metabolism is unusually sluggish. There is MOST likely an abnormality with Betty's _____ gland.

Answers

Answer: Betty's metabolism is unusually sluggish. There is MOST likely an abnormality with Betty's thyroid gland.

The water vascular system of echinoderms The water vascular system of echinoderms functions in locomotion and feeding. functions as a circulatory system that distributes nutrients to body cells. moves water through the animal's body during filter feeding. is bilateral in organization, even though the adult animal is not bilaterally symmetrical.

Answers

Answer:

The water vascular system of echinoderms functions in locomotion and feeding.

Explanation:

The water vascular system of echinoderms is responsible for the functions in locomotion and feeding. The water vascular system is a hydraulic system that is used by echinoderms for example sea stars and sea urchins, for the purpose of locomotion (movement), food and waste transportation, and respiration. This system is composed of canals connecting numerous tube feet.

Inside a skeletal muscle cell, a set of small cylinders called _______ are assembled into larger cylinders called _______.

Answers

Answer:

Myofibrils

Intercalated disc

Explanation:

Myofibrils in a skeletal muscle cell are a set of cylinders which are repeated form of sacromeres.

Intercalated discs are assembled into larger cylinders and are involved in cell to cell communications, they link cells to get her and transmit electrical impulses within the sacrolemma

¿Cómo transformamos las fuentes de energía renovable en energía eléctrica necesarias para el desarrollo sostenible de nuestro país?

Answers

Answer:

Answer to the following question is as follows.

Explanation:

Natural energy is used to generate power in renewable technologies. Wind, wave, ocean, hydro, biomass, and solar energy are all potential sources of energy. ... A variety of technologies, such as floating offshore wind farms, biomass power plants, and hydroelectric systems, will be required to achieve this.

Renewable energy production and utilisation will enhance energy security, the environment, the economics, mechanical production, construction, transport, and industry, as well as assist in the creation of new employment. Solar, wind, and biomass energy can fulfil local energy demands while also helping to enhance environmental protection.

Importance of the water cycle

Answers

Answer:

because it ensure the availability of water for all livings, 95% of our world is covered with water but most of them are either forzen or under ground and also purifies water which can be ready for reuse.

in your own words, what is the definition for Anti-codon?

Answers

Answer:

Basically an Anti-Condon is a sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.

Explanation:

Codons are trinucleotide units that present in mRNA and codes for a particular amino acid in protein synthesis. Anticodon is trinucleotide units that present in tRNA. It is complementary to the codons in mRNA.

Hoped this helped :)

The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?



Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.

Answers

Answer:

some energy is transferred to the smaller organisms and the rest is stored in the bodies of larger animals

What is the plural of drive-in? Use a dictionary if necessary.
O drives-in
O drive-ins
O both

Answers

answer is drive- ins
“s” at the end as in multiple

2. Why are humans considered animals?

A. Their zygotes undergo changes to turn into a blastula.

B. Human cells have cell walls and are unable to move.

C. Humans can reproduce asexually when under stress,

D. Animals and humans are both uni-cellular organisms.

Answers

Answer:

It's A

Explanation:

Had it on a test

Humans are considered animals because as in animals zygotes after cell division turns into a blastula, hence option a is correct.

What are animals?

More than any other species, humans are capable of learning new things. Indeed, the majority, but not fully, of what distinguishes us from other animals is anchored in language.

In addition, because we have a backbone, humans are considered to be members of the chordate animal phylum.

The zygote is split into the blastula after fertilization, three germ layers develop in the blastula, which in some species is a hollow ball of cells, during a process known as gastrulation.

Therefore, humans are classified as members of the primate order within the animal group and having the blastula stage, hence option a is correct.

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If a person uses up his or her reserve supply of glycogen and still does not eat, the body will break down ____ to provide glucose for the brain.

Answers

Answer:

carbohydrates

Explanation:

this is because even though the person hasn't eaten he or she still has an amount of carbohydrates in the body that can be broken down and its end product glucose will be obtained

Pls help me pls this is due today

Answers

protein

Explanation:

beacause its ah. cd

Just after they taste a sweet liquid, mice are injected with a drug that produces an immune response. Later, the taste of the sweet liquid by itself triggers an immune response. This best illustrates

Answers

Answer:

This question lacks options, options are:

a) classical conditioning

b) observational learning

c) spontaneous recovery

d) operant conditioning.  

The correct answer is a.

Explanation:

The classical conditioning theory derives from the experiments of the Russian physiologist Ivan Pavlov, he hypothesized that when any stimulus predicts the occurrence of another stimulus that triggers an automatic response, that first stimulus would acquire the ability to trigger that response, in other words , is a type of learning according to which an originally neutral stimulus, which does not provoke a response, becomes able to provoke it thanks to the associative connection of this stimulus with the stimulus that normally provokes said response. The conditioning of the immune response is built on the same principles of the classical conditioning paradigm described by Ivan P. Pavlov in which an environmental stimulus that by itself does not produce any immune reaction (conditioned stimulus), is associated with substances that stimulate or they suppress immune function (unconditioned stimulus), and finally, by presenting the conditioned stimulus alone, trigger the appropriate immune response.

Select which statements are a part of natural selection.

organisms better adapted to their environment tend to survive

organisms better adapted to their environment tend to reproduce and increase in number

organisms pass on their traits to succeeding generations.

over time, favorable traits become more common in a population

Answers

Answer:

organisms better adapted to their environment tend to reproduce and increase in number

Answer:   *organisms better adapted to their environment tend to survive

*organisms better adapted to their environment tend to reproduce and increase in number

*organisms pass on their traits to succeeding generations.

*over time, favorable traits become more common in a population

Explanation: all of them are correct :)

List in order the levels of classification,beginning with domain

Answers

Answer:

The answer is Domain, kingdom, phylum, class, order, family, genus, species.

Drag each label to the correct category.
Decide whether each statement describes mass or weight.
measured in newtons
measured in kilograms
does not change when
gravity changes
changes when gravity
changes
the amount of matter
in something
a gravitational force
Mass
Weight

Answers

Answer:

Weight: newtons, kilograms and changes when gravity changes

Mass: does not change when gravity changes, the amount of matter in something, and a gravitational force

Hope I get this right :)

Answer:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Explanation:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Cell replication is important for reproduction of body cells and reproduction of gametes. Which type of reproduction occurs only in gametes

Answers

Answer:

meiosis

Explanation:

meiosis occurs in reproductive organs

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