How do the diaphragm and rib muscles help with breathing? These muscles
pull lungs down to draw in air
change the air pressure
open up the air flow tubes
keep food out of the chest
push blood around the lungs

Answers

Answer 1
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale

Related Questions

If a mosquito cell has 3 chromosomes, is it haploid or diploid?

Answers

Answer:

If an orangutan cell had 24 chromosomes, then the cell is diploid or haploid (circle one). If a mosquito cell had 3 chromosomes, then it would be a gamete or a somatic cell (circle one).

mark me as brainlist please

All mosquitoes have six diploid chromosomes (2N = 6), and their chromosomes are either submetacentric or metacentric, mosquito cell has 3 chromosomes and is haploid.

What is the difference between haploid and diploid?

Three pairs of chromosomes make up the Anopheles mosquito's chromosomal complement: two sex chromosomes As a consequence, when a sperm and egg cell join during fertilization, the resultant zygote has 46 chromosomes.

The number of chromosomes and their shape in mosquitoes are extremely similar mosquito cell has 3 chromosomes, and are haploid.

Therefore, to go from haploid to diploid cells, we only need to double the number of chromosomes. This quantity is denoted by the abbreviation 2n, where n is the number of chromosomes.

Learn more about chromosomes, here:

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9
Select all the correct answers.
Based on these images, what can you conclude about the organisms?
C
C
Organism 1 Organism 2
Organism 3
Organism 4

Answers

If I remember them correctly, the organisms are a fish, a reptile a bird and a human during embryonic development. B & D are the correct answers.

Answer:

b d

Explanation:

Which best describe the structure of DNA?

Answers

Answer:

DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

Many movies have shown scenes where explosions can be seen and heard in outer space. Which statement BEST describes why these scenes are not
correct?
A.Sound waves are unable to travel in outer space.
B.Light waves travel too slowly to be seen in outer space.
C.Light and sound travel at different speeds in outer space
D.Light and sound travel in different directions in outer space.

Answers

Answer:

A.Sound waves are unable to travel in outer space.

Bobcats are generally solitary and establish territories of a certain size where they hunt for food. What type of population dispersion would you expect bobcats to have?

Answers

Answer:

Uniform dispersion.

Explanation:

The bobcats' population distribution would be a uniform dispersion because they are distributed in an area in a balanced way. That is to say, that there is space between them and that each bobcat establishes its personal space when hunting and for their daily life. As they are solitary animals, they do not live in groups and only associate with other bobcats to reproduce themselves.

HELP PLS

Ticks are parasitic insects that feed on blood. Consider a single
population of ticks that divides into two populations. One population
feeds on the blood of mammals that live only in trees. The other
population feeds on the blood of mammals that live only on the ground.
Which observation supports the idea that speciation has occurred?
How Fa
Search fc
The tree population and the ground population of ticks cannot mate
and have offspring.
How mar
Which an
The tree population of ticks feeds more frequently than does the
ground population
Do wild re
What doe
The genes in both the tree population and the ground population of
ticks combine to form a single, large gene pool.
What doe
The ground population of ticks gets eaten less frequently by birds
than the tree population.

Answers

Answer:

ask siri 123

Explanation:

i can help

The tree population and the ground population of ticks cannot mate and have offspring indicates speciation has occurred.

What is population?"A population is defined as a group of individuals of the same species living and interbreeding within a given area."What is speciation?"Speciation is the evolutionary process by which populations evolve to become distinct species."The ticks of tree and ground population evolve without interfering with one other. Forms a different species and no mating occurs between them.

Hence, the correct answer is: The tree population and the ground population of ticks cannot mate and have offspring.

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The structure labeled A in figure 10-3 is called the?

also can someone help with 16 PLEASE !! ​

Answers

I’m pretty sure that the 15: is centromere
And 16: telomere

Which of the following structures is found in both plants and animals, and is correctly paired with its function?

Answers

Answer:ribosome

Explanation:

Hi! Can someone please help with this question ASAP. thanks

What are the 3 pillars of sustainability. Provide examples as well.

Answers

Answer:

economic viability, environmental protection and social equity.

Explanation:

Give 3 examples of convection currents in nature
Mechanism of Energy Transfer Requires direct contact? Requires a medium?
Conduction yes

Convection

Radiation











IMA GIVE BRAINLIEST!

Answers

Answer:  

1.Radiator

2.Steaming cup of hot tea

3.Ice melting

Explanation:

1.Puts warm air out at the top and draws in cooler air at the bottom.

2.The steam is showing heat being transfered into the air.

3.Heat moves to the ice from the air. This causes the melting from a solid to liquid.

Explanation:

What is a molecule in your own words?

Answers

Answer:

A molecule is two or more atoms bonded together to form a single chemical entity.

fill in the gaps plzzz



Vasoconstriction and Vasodilation

__________ carries heat from the core around the body.

As blood flows through the ______________ close to the surface of the ______, heat is lost to the body’s surroundings.

The __________________ which supply the capillaries in the skin have smooth _________ in their walls. This means that the arterioles can dilate or constrict to ____________ the flow of blood into the capillaries.

Answers

Answer:

Blood

vessels (arteries), skin

vessels (arteries), smooth muscular cells, regulate

Civil engineers want to determine whether the porosity of surface soil affects aquifer recharge rates

Answers


Aquifer recharge is water that moves from the land surface or unsaturated zone into the saturated zone. Quantitative estimation of recharge rate contributes to the understanding of large-scale hydrologic processes. It is important for evaluating the sustainability of groundwater supplies, though it does not equate with a sustainable rate of extraction. Where contamination of an aquifer is a concern, estimating the recharge rate is a first step toward predicting solute transport to the aquifer. Recharge may cause a short- or long-term rise of the water table. Artificial drainage, e.g., with horizontal porous pipes buried at a chosen depth, is sometimes used to maintain a minimal thickness of vadose zone for agricultural or other purposes.
Recharge rates vary considerably in time and space. Recharge often occurs episodically in response to storms and other short-term, high-intensity inputs. For a given amount of infiltration, temporal concentration enhances recharge because it entails shorter residence times for water in the portions of the soil from which evapotranspiration takes place. Similarly, a larger fraction will become recharge if it is concentrated in narrow channels such as fingers or macropores, not only because this tends to hasten its passage through the unsaturated zone, but also because the water then occupies less of the volume of soil from which evapotranspiration takes place.

After a devastating forest fire, the surrounding area contained no life. After some time, small plants began to grow along the remaining soil.

Answers

Answer:

Yes.

Explanation:

Yes, small plants began to grow along the remaining soil because of the presence of seeds in the soil that sense suitable environmental condition and come out of the soil. The ashes of burn trees have huge amount of nutrients in the form of minerals that triggers the growth of small plants. After the destruction of forest, new plants grow on that land, this type of phenomenon  is called ecological succession.

Answer: CORRECT (SELECTED)

Secondary succession

Explanation:

Secondary succession occurs when a previously occupied area is recolonized after a disturbance kills most, or all, of its community.

i would like help on this please

Answers

ANSWER:

A

Explanation: chimpanzees have 0% difference from humans.




A ray of light is passing through a medium making an angle of 45°. If the
refractive index of the medium is 1.4, calculate the angle of refraction. [Ans: 30°)​

Answers

Answer: By Snell's law, we can see that the angle of refraction is 30.34°

Explanation:

Snell's law says that:

If a ray in a medium of refractive index n₁, insides with an angle θ₁ in another medium with refractive index n₂, then the angle of refraction θ₂ is given by:

n₁*sin(θ₁) = n₂*sin(θ₂)

We know that:

The incidence angle is 45°, then: θ₁ = 45°

We can assume that the first medium is air, then n₁ = 1

The refractive index of the other medium is 1.4, then n₂ = 1.4

Replacing these in the Snell's law equation we get:

1*sin(45°) = 1.4*sin(θ₂)

Now we can solve this for the angle of refraction:

sin(45°)/1.4 = sin(θ₂)

Asin(sin(45°)/1.4 ) = Asin( sin(θ₂)) =  θ₂ = 30.34°

So the angle of refraction is 30.34°

List at least five facts about brain health and protection.

Answers

Answer:

always use protection but of no one lisens to that saying.

1.)Weave heart-pumping exercise into your daily routine.

2.)Take care of any medical problems.

3.)Get enough sleep, and get help for existing sleep problems.

4.)Review the medications you’re taking with your doctor.

5.)Stay socially engaged.

Please help if you have watch the Amoeba Sisters photosynthesis
what part(s) of the video you liked
what part(s) of the video you did not like
was the video was useful to you and why/why not

Answers

Explanation:

the video was really use ful I watched it a couple. of times before a test to

Which component makes each amino acid unique?
Amino group
Carboxyl group
R group
Phosphate group

Answers

Answer:

The best answer is R group. An R - group is a chemical group or side chain that is found attached to the central carbon in amino acids

Explanation:

R group

Explanation: thanks to the person above ^

And Magiic Jaaaay for asking the question! remember to stay safe, happy learning.

which is the correct diagram of an atom , hint (i’m putting a picture)

Answers

C. The nucleus of an atom has protons and neutrons in it. The electrons circle on the outside of the nucleus.

Why are seismic waves considered
mechanical waves?
A. They must travel through a medium, such as
the bedrock of the Earth.
B. They will only travel through empty space.
C. They travel in circles.
D. They do not require a medium.

Answers

Answer:

The correct answer is - option A.

Explanation:

The seismic waves are the waves that are the result of an explosion or the breaking of the rock within the earth. In other words, when these explosions or breaking cause an energy transfer within the earth are seismic waves. Seismic waves require a medium to travel and normally it is the earth.

The bedrock of earth is a great example of a medium for traveling these waves that make it a mechanical wave. Earthquake is the result of such waves.

What will be the effect of the damaged DNA? The role of p53 in regulating cell cycle prpgression in response to DNA damage

Answers

Answer:

Damaged DNA causes an increase in the number of mutations in the cell: this is extremely dangerous for the body and in fact this process is at the basis of the birth of cancer cells.

To avoid this, the cell is equipped with some molecular protective systems including the activation of the p53 protein. p53 induces recruitment of DNA damage repair systems and stops cell replication until the damage has been repaired. If the damage cannot be repaired p53 induces cell death through apoptosis

Why do nervous system
responses tend to be more rapid
than endocrine system responses

Answers

The endocrine and nervous system are similar in that both involve the transmission of a message that is triggered by stimulus and produces a response. But because nerve impulses can travel much faster than blood-borne substances, nervous system responses are more rapid

When the environment favors extreme types in a population at the expense of
intermediate forms, this is an example of which category of natural selection?

Answers

Answer:

Disruptive or Diversifying selection

Explanation:

occurs when natural selection favors both extremes of continuous variation. Over time, the two extreme variations will become more common and the intermediate states will be less common or lost.

PLS help me answer this question

Answers

Answer:b gb

Explanation:

n gnx

Answer:

I bet thats acellus..

Explanation:

when the cell needs energy again, it can remove the third phosphate group from atp to _____ energy.

Answers

ADP or adenosine diphosphate

PLEASE HELP FAST!!




The scientists notice that one measurement stands out.
How should the scientists best deal with this
measurement?
O accept it as true and use 85 micrometers in the data
when they find the average length
O accept it as true but say that it is the only cell that has
ever been that long
O consider that there was an error during measuring
and collect further data
O consider that it is possible but very unlikely for these
bacterial cells to be so long

Answers

Answer:

consider that there was an error during measuring

and collect further data

Explanation:

Human errors during observation are common, and although they should keep their minds open to the probability of it being longer, it is much more likely the researcher made a mistake, which they need to account for first.

A normal woman who is a carrier for colorblindness marries a normal man. What types of offspring would you expect?

Answers

Answer:

half Normal half color blind

Explanation:

On punnett Square there are half dominat genes and half non dominant (sorry for the horrible explanation

PLEASE HELP I FELL ASLEEP IN BIOLOGY CLASS!!?

Answers

Answer: Cell wall

Explanation:

You are a wild rabbit and your species currently lives in desert. Most of the rabbits are brown but there are a few that are white. An asteroid hits the Earth and the environment you live in suddenly becomes very cold. It begins to snow leaving snow covering the ground. Will your species be able to adapt and line in the new environment? Explain and give details (what happens to white rabbits and brown rabbits.)
I need the brainylest answer and I will give a brainylest answer for this.​

Answers

Answer:

The species of wild rabbits that are brown would most likely have a harder time adapting than the white rabbits to the new environment.

Explanation: The brown rabbits are going to have a hard time living in the snow mostly because of their color. The brown rabbit is more likely to be able to live in the desert because they can camouflauge with their surroundings (the sand). Therefore, camouflaging in the white snow to escape a predator would be impossible for brown rabbits, since they could easily be spotted. Furthermore, the white rabbits would have a higher chance of survival since they can camouflage easier in the snow.

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The most effective leaders treat everyone alike. True True False A severe storm would be most likely to damage a coastal area by causing A. volcanoes. B. pollution. C. erosion. D. earthquakes. According to the text, what is the meaning of the word coveting The warranty is an excellent tool for you touse to:A. Prove that your company has the best priceB. Explain your companys return policyC. Reassure the customer about a products qualityD. All of the above Which is the best description of the authors word choice and the way in which it supports the argument? A. The author uses figurative language to create a clear picture. B. The author uses figurative language to simplify complex ideas. C. The author uses precise, formal language to explain and connect ideas clearly. D. The author uses precise, formal language to interest and entertain the reader.i need it in 5 mins!! Please hellpp Which best explains why soldiers answered the call to enlist? to be part of the excitement and prestige to avoid being drafted to teach the other side a lesson in humility to invade their enemy and defeat them what is equivalent to 10x + 80A) 5(2x + 40) B) 10(x + 8) C) 5(2x + 80) D) 10(10x + 8) Do you feel like there places you can't say what you really think? Or do what you really want? Example: in the book they aren't allowed to read books. They will be killed. Is there a place in this world where that happens? Where people aren't free. Tell me about what you know about that. please answer it with 7-15 sentences will give brainliest Logan is working on a game development team that will be in charge of creatingstoryboards and documenting the game plot, ultimately creating the designdocuments needed to make the game. What specific team is Logan working on?1)production team2)pre-production team3)post-production team4)art design team Mirabeau Lamar is remembered for all of the following EXCEPT...Your answer:O relocating the capital of the Republic of Texas to Houstono favoring westward expansionO developing the educational systemClear answer Jim has 1/3 of a cup of milk he adds 2/3 to it. How much milk does the cup have know. What is the difference between a law and an amendment? Help please the first answer says 0.05 16m - (5 + 9m) which one is it Find the value of y if the mean is 22 and 18 ( 2y+1), 10 and 20 is 15 10 cma6 cmWhat is the length of the missing leg?a =centimeters You are designing an office building. In order to reduce noise from high-frequency sounds between offices above and below each other, would you choose carpet on concrete or wood floors? Explain your answer. "What did you do last yearwhat use did you make of the time as it went by? What did you do yesterday? What are you going to do today? You possess a mind organized for practically unlimited thinking and studying. How many of your hours do you live as a thinking, studying man? How many do you live on a par with an ox chewing his cud in the field?"Why does the author ask a series of rhetorical questions in paragraph 11?A. to point out the similarities between animals and human beingsB. to encourage readers to think about the meaning of timeC. to suggest specific ways to utilize time most wiselyD. to make readers evaluate their use of time why is Copernicus famous ? WHAT DOES DEPENDENT MEAN IN THIS SENTENCE PLSSSSS HELPPPP