What is the role of the respiratory system in the body?

Answers

Answer 1
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.

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Related Questions

pls help me with this asap i will mark brainliest

Answers

There is no work that I can see.

Gaps in rock layers are called ____.
a.
unconformities
c.
half-lives
b.
index fossils
d.
none of the above

Answers

Ninguna de las anteriores

Explanation:Las rocas sedimentarias se forman en la superficie de la tierra por ... Por esta razón, suelen presentar una disposición en capas denominada estratificación,que se denominan en función de los tamaños de grano mayoritarios. ... Estos huecos son normalmente rellenos por aguas ricas en CO3Ca

what is method of magnetic separation​

Answers

Explanation:

Magnetic separation is a method of waste management where magnets are used to separate metal from refuse. This is most common in single and mixed streams of recycling as the materials are collected together and separated before processing.

Which microscope were cells first observed?

Answers

Answer:

Leeuwenhoek made his own microscope lenses, and he was so good at it that his microscope was more powerful than other microscopes of his day. In fact, Leeuwenhoek's microscope was almost as strong as modern light microscopes.

Explanation:

Hope this helps you

It’s called a electron microscope and it had a HUGE impact on biology :)

Explain why crops are genetically modified.
More specifically as a bulleted list.

Answers

Explanation:

For centuries, farmers have bred crops for certain desirable traits. ... Genetically Modified (GM) crops offer improved yields, enhanced nutritional value, longer shelf life, and resistance to drought, frost, or insect pests.

how to seperate peanuts from sugar
f - strainer
g - paper filter
h - magnet
j - stove

Answers

since the peanuts are so much bigger then granules of sugar, paper filter wouldn’t separate them sugar isn’t fine enough, there’s no magnet in either and stove wouldn’t do anything so it must be strainer
It would be a strainer because that’s the best answer.

the more complex sugar disaccharides store more energy
Why do
than
monosaccharides?

Answers

Answer:

because disaccharides have more chemical bond

Explanation:

❣️✧Jess bragoli ✧❣️

#keep learning!!

Answer:

disaccharides have more chemical bond

Explanation:

Ape-x

describe the difference between covalent and ionic bonds. give one example of each

Answers

Answer:

Actually, a covalent bond is formed between two non-metals. Electrons are shared between the two atoms in order for them to achieve a full outer shell. Covalent compounds do not conduct electricity.   An ionic bond is formed between a mental and a non-metal. Electrons are transferred from the metal atoms to the non-mental atoms to form ions. Ionic compounds conduct electricity when dissolved.

what is the approximate slope of the dashed line?

Answers

0.0067 im pretty sure is that

In the carbon cycle, plants convert carbon dioxide from the air in to
a. proteins
b. nitrogen
c. carbohydrates
d. nucleic acids​

Answers

Answer:

C

Explanation:

because form carbon is change to carbonhydrates

1. ---------------- is non- metal used in the vulcanisation of rubber. 2--------------- is used making fertilisers. 3. ----------------- is used in to matchstick heads. 4---------------- crystals are used for keeping time in watches . 5.---------------is a non-metal that has a high melting point. 6.------------ metal is found in a pure state in nature. 7.------------------ is the most. abundant metal on the earth. 8 . is a non-metal present in hair eggs and wool. 9. metal that is used to harden steel. 10 . metal is used to galvanise iron . plz help 5 minute.​

Answers

Answer:

1. sulfur

2. ammonium nitrate

3. potassium chlorate

4. quartz Crystal's

5. Diamond

6. aluminum

7. aluminum

8. keratin

9. chromium

10. zinc

Explanation:

1. SULFUR is non-metal used in the vulcanization of rubber.

2. AMMONIUM NITRATE is used to make fertilizers.

3. POTASSIUM CHLORATE is used to matchstick heads.

4. QUARTZ crystals are used for keeping time in watches.

5. DIAMOND is a non-metal that has a high melting point.

6. ALUMINUM metal is found in a pure state in nature.

7. ALUMINUM is the most abundant metal on the earth.

8. KERATIN a non-metal present in hair eggs and wool.

9. CHROMIUM metal that is used to harden steel.

10. ZINC metal is used to galvanize iron

Which of the following is a challenge in maintaining tree plantings or native meadows “no mow zones?” Choose all that apply.

If left unattended, non-native plants can take over the area and kill the native plants
If left unattended, non-native plants can take over the area and kill the native plants

Deer can eat young trees if a tree does not have a proper deer guard tube installed.
Deer can eat young trees if a tree does not have a proper deer guard tube installed.

Native trees and native plants in no-mow zones need to be watered each day for two years.
Native trees and native plants in no-mow zones need to be watered each day for two years.

Native trees and native plants in no-mow zones need to be regularly fertilized.

Answers

Answer:

most likely B and you know why? native plants are more dangerous!!!

Explanation:

yes that is my explanation, i learned this in like middle school.

If left unattended, non-native plants can take over the area and kill the native plants. Thus, the correct option is A.

What is no mow zone?

A “no mow zone” is refer as a designated section of land purposely not mowed in order to encourage native plant species growth. If left alone for a century or longer, the lawn will transform into a forest.

Low mow zones are ideal habitats for small animals and insects  and become rich with species.

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You have a sore throat from a viral disease. A friend suggests you get a prescription for an antibiotic. What would you say, and why?

Answers

I would say thank you because if you start taking that antibiotic you can get better but if you don’t finish the coursethat sore throat might get worse
i would tell them no thanks you because antibiotics do not work on viral infections only bacterial infections

Would you classify a fruit, such as an apple, as a cell, tissue, organ, or organ system? explain.

Answers

Answer:

organ it has a true roots ,stem and leaf

Someone, plz help me!!! I will give 30 points to the correct answer!!!

What are at least three examples of food and agriculture health milestones which may have led to a significant INCREASE in the human population.

Answers

Answer: Farming Hunting and Industrialization

Explanation:

Irrigation, farm machines and high yield in agriculture has result in increase in human population.

What is agriculture?"Agriculture or farming is the practice of cultivating plants and livestock."What do you mean by irrigation?"The supply of water to land or crops to help growth, typically by means of channels."Why farm machines are used in agriculture?They are used to reduce labor.Make work more efficient.Examples: tractor, plough, etc.,What do you mean by high yield?Various methods are used to increase the production of food.Along with plant products surplus animal products are available for consumption.

Hence, better irrigation, use of machines and high yield in agriculture can result in increase of human population.

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_______________ allows you to make new BODY cells.
A. mitosis

B. meiosis

Answers

Answer:

A. mitosis

Explanation:

mitosis allows you to make new BODY cells.

good thinks about space travel being done with private businesses

Answers

Answer:

I don't think is plausible and well encouraged as it wastes cost which is not easy to earn by companies

How do roots and seeds get oxygen to produce energy through cellular respiration?
A. from the water

B. from fertilizer

C. the soil must contain oxygen

D. the leaves send oxygen to the roots

Answers

Answer: C: the soil must contain oxygen

Answer:

C. the soil must contain oxygen

Explanation:

Roots of plant take oxygen from air that is present in-between the particles of soil.

How are fossils formed? Simple answer please

Answers

Fossils are formed when a plant or animal dies in a watery environment and is buried in mud and silt. Soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.

ECOLOGICAL SUCCESSION LAB

Questions Section 1: Experimental Overview 1. What is the question that you are trying to answer?

(I don't know if this is biology or chemistry heh)​

Answers

Answer:

Hi,

this is a biology lab. It would help if you posted pictures of the lab or the lesson so someone can answer this accurately.

Explanation:

What type of graph is this?
What does “A” value, or constant,represent for this pattern?
How much ink was used by the ORANGE pen when a 3 m line was drawn?

Answers

Answer:

a is the value of kus omak

Explanation:

Soluble salts can be made by mixing acids and alkalis What name is given to this type of reaction?​

Answers

Answer:

Neutralization Reaction

Explanation:

Reaction is the name given to this type of reaction in which soluble salts can be made by mixing acids and alkalis.

Which of the following could be reasons why population sizes may reach and maintain plateaus? Select the three (3) that apply.
fewer deaths
limits in food supply
competition with other species
increased birth rates
competition for space
major storms

Answers

Answer:

the answers are a, b, and ,d

The following could be reasons why population sizes may reach and maintain plateaus are fewer deaths, limits in food supply and increased birth rates.

What is the relationship between natural selection and population?

Natural selection can cause microevolution (change in allele frequency), which causes fitness-enhancing alleles to become more common in the population. Fitness is a measure of reproductive success (how many offspring an organism leaves for the next generation, relative to others in the group).

Another factor that limits the growth of populations is densification. This means that a large number of individuals present at the same time in the same area reduces the availability of resources for the population as a whole, increasing the mortality rate and reducing reproductive success.

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Please help me please

Answers

Answer:

18. Magnetite

19. colour

Answer:

The answer would be Magnetite and color

Explanation:

Which of the following statements is true?

a.Daughter cells formed from meiosis have twice as many chromosomes as the parent cell.

b.During fertilization, the
chromosomes from two gametes are combined.

c.During binary fission, a single parent cell divides into four genetically identical daughter cells.

d.Sexual reproduction increases the number of inherited mutations.

Answers

Answer:

answer is b during fertilization

Answer:

B.

Explanation:

that's the correct answer

the passage of the moon into earth’s shadow causes a

Answers

Explanation:

passage of the moon into earth’s shadow causes a

it causes an eclipse

The data table below shows the presence or absence of DNA in four different cell organelles.
Information in the table suggests that DNA functions
A. within cytoplasm and outside of the cell membrane
B. both inside and outside of the nucleus
C. only within energy-releasing structures
D. within cell vacuoles

Answers

The answer is B. I hoped this helped!
The answer B I am sure

Look at the four devices below.
flashlight
lawn mower
solar calculator
desk lamp
Which device uses light as it's source on energy? ty if youhelp

Answers

solar calculator

every other option can be charged using batteries or power.
solar calculator.......

Scientist have establish that some of the layers of earth are solid summer liquid in summer semifluid explain how scientists are able to determine the liquid and solid layers is at least two pieces of evidence to support your answer?

Answers

Answer:

Geology involves integration of various different sciences (chemistry, physics, and biology for example), but also requires an understanding of the importance of billions of years of geological time.

Paleontology is an important aspect of geology and requires an understanding of biology, including evolution, the physiology of animals and plants and ecological relationships.

which of the following is the best definition of Technology?
A. the most recent electronic devices.
B. The scientific process
C. The pursuit of scientific knowledge.
D. Practice applications of scientific knoledge.

Answers

Answer:

I believe its D, technology is to make life easier with new resources, so using that definition, I think that D falls under it

Explanation:

The best definition of technology is the practice applications of the scientific knowledge. The correct option is D.

What is Technology?

Technology involves the practical use of scientific knowledge to create tools, machines, and systems that improve our lives and solve problems. It is not limited to just electronic devices, but encompasses a wide range of fields including engineering, medicine, and agriculture.

Technology is the means through which we put scientific knowledge to use. It encompasses both tools (like computers) and methods (like how we make computer chips), as well as both. Although the majority of contemporary technology is electronic, this does not mean that all technology is.

While the pursuit of scientific knowledge is important, it is the application of that knowledge that defines technology.

Therefore, the correct option is D.

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