The main function of the respiratory system is to –


A. filter body fluids to remove waste products from the bloodstream.


B. send signals in the form of hormones to the body to control growth, reproduction, and metabolism.


C. rapidly communicate specific information using electrical impulses.


D. exchange gases, mostly carbon dioxide and oxygen, between the body and the atmosphere.

Answers

Answer 1
The answer is d I believe
Answer 2
The answer is D. Exchange gases, mostly carbon dioxide and oxygen, between the body and atmosphere!

Related Questions

I am a gas. I am in the noble gas family and row 1. I have only 2 valence electrons I glow red-orange when in an electric field. I can also be found in the sun. Who am I?

Answers

Answer:

the elements its helium

Explanation:

ithink its help

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....
all I need you to do its to type out these pictures word for word it pretty simple

Answers

Resources affect populations
Living and nonliving things are both found within the same ecosystem. The living things require the non living things for survival.

Limiting Factors
Environmental factors, such as the amount of water, food, sunlight and temperature available, are limiting factors for a population.

A limiting factor is sometimes that restricts the size of a population. Limiting factors might affect the number of individuals in the ecosystem can support.

The amount of space affects a population’s size.

Available water, food, sunlight and temperature are all limiting factors.

Space is also a limiting factor.

If there are too few resources, populations may migrate to new areas.

Answer:

- The amount of space affects a population's size.

- Available water, food, sunlight and temperature are limiting factors

- Space is also a limiting factor.

- If there are too few resources, populations may migrate to new areas.

Limiting

Factors

- Environmental factors, such as the amount of water, food, sunlight and temperature available, are limiting factors for a population.

- A limiting factor is something that restricts the size of a population. Limiting factors might affect the number of individuals in the ecosystem can support.

Resources affect

populations

Living and nonliving things are both found within the same ecosystem. the living things require the non living things for survival.

(Please take note I fixed some of the incorrect grammar in these images. Such as 2 spaces in-between, or this -> "Number of individuals ithe ecosystem")

~ LadyBrain

I´ll mark branlist for the best answer!!!
Write a paragraph (5-8 complete sentences) answering the prompt"How does the availability of resources in ecosystems impact ecosystems?"

Answers

5-8 Sentences on: "How Does The Availability Of Resources In Ecosystems Impact Ecosystems?"

Changing out natural resources in our environment can affect the whole entire ecosystem.  Ecosystems can change throughout time but the change may or may not affect the ecosystems.  But according to research, if the change is too fast the whole ecosystem can be destroyed.  An imbalanced or damaged ecosystem can lead to problems.  Certain resources play an important role such as sunlight and water, we need resources to survive and can also help living creatures.  These resources impact animals, plants, and insects/bugs.

P.S If you need more sentences I will edit my answer!

           Hope this helps!

      ~Hocus Pocus

What is the chemical formula fructose

Answers

the chemical formula of fructose is C6H12O6

A student uses a lever and fulcrum to lift a rock off the ground.
Which option describes when potential energy is converted into kinetic energy during this process?


a. when the lever is wedged beneath the rock but before it has been lifted

b. when the student presses down on one side of the lever to cause it to move

c. when the rock rests on the ground without the lever

d. when the rock rests above the ground

Answers

it has to me b because it shows what they did in this part
I think it’s b hope this helps

Answer the following questions with a picture only PLEASEEEEE.

1. What is the main source of energy for ecosystems?

2. What are some natural things that can disturb ecosystems?

Answers

Answer:

1.Photosynthesis is the process of converting light into energy

2.Natural events, such as wind, drought, flood, fire, or disease.

Explanation:

1.Since photosynthesis converts light into C-H bonds in organic material, photosynthesis is the most common source of energy in most habitats, and therefore carbon flow and destiny are inextricably related to energy flow.

2.Natural disasters such as wind, drought, storm, burning, or disease may cause disruption. These "natural occurrences" are often linked to human activities. Air and water emissions, as well as climate change effects such as temperature, rainfall, and ocean chemistry, are also examples of human disruptions.

(hope this helps can i plz have brainlist :D hehe)

In a few sentences, describe what this weather map tells you about the weather.

Answers

Answer:

You can download the answer here

Explanation:

This weather map tells you that where the L is it will be colder. Where the H is it tells you that it will be hotter.

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
all I need you to do its to type out these pictures word for word it pretty simple

Answers

Answer:

Threatened Species: A threatened species is a species at risk but not yet endangered. California sea otters were classififed as a threatened species. Laws were passed to protect the otters and now they have increased their population size.

Invasive Species: One of the main causes of extinction and endangered species is the introduction of an exotic species. New exotic species are called invasive species. Invasive species can disrupt food chains, carry disease, prey on native species directly, and out-compete native species for limited resources, like food.

Extinction: If a population decreases too much in numbers, they disappear. Extinct species mean that the species has died out and no individuals left. An example of extinction: New Zealand was once home to a bird called the Giant Moa. Humans settled as their population increased the Moa population decreased. The species is now extinct.

Explanation:

Explain the difference between mechanical weathering and chemical weathering​

Answers

Answer:

mechanical weathering breaks rocks into smaller forms without any change in their composition whereas chemical weathering breaks down rocks by forming new minerals .

or simply mechanical weathering is the physical breakdown of rocks while chemical weathering is the breakdown of rocks through chemical reactions .


This is the right answer it was a question on my test and i got it right

Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these best explains these observations?
A. Organisms traveled between these continents on land bridges.
B. The same forces erode mountains in different locations.
C. These continents were joined together at one time in the past.
D. Some rock types are very common and are found everywhere.

Answers

Answer:

These continents were joined together at one time in the past.

Explanation:

Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these BEST explains these observations?

these continents were joined together at one time in the past

Which of the following has the greatest influence on the size and force of waves?
A.
seasons
B.
Moon’s gravity
C.
wind speed
D.
Earth’s gravity

Answers

wind speed bc The faster the wind, the longer it blows, or the farther it can blow uninterrupted, the bigger the waves.
c. wind speeds


i need 20 soooo

What is the force called that is applied to an object and it's NOT opposite and/or equal?

Answers

i think the answer would be velocity.

Answer:

velocity

Explanation:

ASAP LIKE RIGHT NOW PLEASE
Explain what happens to the amplitude of a wave when the energy to produce it is increased. in easy words

Answers

I think the amplitude of a wave increases when the energy increases. I hope that helps!

Can yall help w these. Please no links/spam

Answers

Answer:

sun

chloroplasts absorb

sugar light

plants phytoplanktin

Explanation:

Answer:

1. Sun

2. Chloroplasts, absorb

3.  sugar, light

4. plants, animals

Explanation:

Hope that helps

QUESTION 4 5
4. What would most likely be the result of an invasive species entering an ecosystem?

5. Why are humans responsible for many invasive species?

Answers

#4: An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts

#5: It is not surprising that human population density is a leading cause of species invasions. Species are easily moved by human and animal (particularly domestic animal) vectors, and increasing populations residing next to protected areas simply means increasing the odds of species introduction

HOPE THIS HELPS

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....
all I need you to do its to type out these pictures word for word it pretty simple

Answers

Answer:

Disease can reduce the size of a population quickly.

The amount of resources, such as food and water, limit how many pikas can survive.

The presence of predators limits how large the population can grow.

As the population grows, the pikas compete with each other for resources.

The amount and types of space avalible in an environment mean only a certain number of pikas can make homes.

PLEASE HELP MOI I GIVE BRAINIEST
Mars’ average temperature is -55o C, while Earth’s is 17o
C. Mars’ atmosphere is 95.3% carbon dioxide. Mars’ soil
contains no humus and is mostly Sulphur. One day on
Mars is approximately 24 hours and 37 minutes. In your
own words, explain whether or not you think life could
be supported on Mars. Be sure to use the terms, air,
water, soil, and sunlight, in your explanation.

Answers

Answer:

If you had alot of winter gear and flash lights due to there being alot of storms  on mars and having a glass dome filled with o2 and food then you could have a chance of surviving

Explanation:

Question: Describe how a river changes the earth´s surface. please explain in your own words, might be reported if answer is c o p y r i g h t

Answers

Answer:

Answer down below

Explanation:

Through the processes of erosion and deposition, rivers and streams can drastically alter the Earth's surface. ... The rushing water of rivers helps to carve new features into the surface of the Earth.

Hello
Hope u r fine in this pandemic
Answer is
That water helps deposit nutritions from mountains to plains to make em fertile (water here refers river streams etc.)

A student uses a lever and fulcrum to lift a rock off the ground.

Which option describes when potential energy is converted into kinetic energy during this process?


a. when the lever is wedged beneath the rock but before it has been lifted

b. when the student presses down on one side of the lever to cause it to move

c. when the rock rests on the ground without the lever

d. when the rock rests above the ground

Answers

Answer:B

Explanation: I know this because kinetic energy is when something is moving and potential energy is when something is not moving and the energy is being stored so it has you are pushing on the other side moving the object it is transforming the potential energy also known as stored energy into movement also known as kinetic energy

B is the correct answer

Describe what bacteria are - their parts, how they can be good, how they can be bad, and the different types.

Answers

HIIII, so.... In all there are two different types of Bacteria good bacteria and bad bacteria, the good bacteria helps fight off diseases and other sickness the bad bacteria can make you sick.

I hope that was enough to answer your question!!!

Have a good day and I hope you pass all of your exams!!!!! <3

Bacteria are living micro organism they Can be good or bad depending on the type an example for a good bacteria is the bacteria that lives in your stomach it helps you digest food and then example for bad bacteria is a virus that can get you very sick bacteria

The equator is at a latitude of 0°. Which latitude will have the warmest temperature?

Answers

Answer:

There is a relationship between latitude and temperature around the world, as temperatures are typically warmer approaching the Equator and cooler approaching the Poles. There are variations, though, as other factors such as elevation, ocean currents, and precipitation affect climate patterns.

Explanation:

0 will have warmest

Write a paragraph on why food needs to be digested. :)

Please hurry I need it.

Answers

Answer: You die if no digest

Explanation:

Food needs to be digested because your body can't contain large stuff whole, so it has to be converted into a smaller amount. For Instance, if you were to eat a entire turkey then your body would just explode I guess if you wouldn't digest it. Also, without digesting food you can't enter new food into your body. Therefore, this is why food needs to be digested.

Im sorry if my answer is two short but you can expand or take the idea of it.

Food needs to be digested into tiny particles in order for your body to absorb its nutrients and convert it to energy.

(a) What are three ways in which the atmosphere is important to life on Earth? (b) How would the amount of carbon dioxide in the atmosphere change if there were no plants? (c) How would earth be different without the atmosphere?

Answers

Answer:

How is the character Batnik in “Too Fast” similar to Pitys in "Pan: God of the Wild"?

Both defy orders from their fathers.

Both die due to the jealousy of a god.

Both are enchanted by the skills of another.

Both are lured to their deaths by music.

Explanation:

Bones, lungs, and the liver are the most common places for cancer cells to spread, or "metastasize." Once in the bone, these cancer cells can form new metastatic tumors.

...

Bone metastasis is more likely with cancers such as:

Breast.Prostate.Lung.Kidney.Thyroid.

image------------------------------------------------------------------------------------------------------------------v
v--------------------------------------------------------------------------------------------------------------------------v
--------------im just trying to fill space for the minimum 20 char

Answers

The answer is probably tt

Well for parent 1 and parent 2 ( 1st parent of 2 ), parent 1 shows T so it forms Tt

Parent 1 and 2 ( 2nd parent of 2 ) ( parent 1 also has T and parent 2 has t ) so it forms Tt

Parent 1 ( 2nd parent of 1 ) and parent 2 has t and parent 1 is  normal which forms tt

So that leaves 2nd parent 1 and parent 2

tt i think is the correct if you get it wrong I’m sorry I’m trying my best

Short Question: What is Hydropower?

Answers

The use of flowing water to power a turbine to produce electrical energy

Answer:

Hydropower is energy in moving water.

Explanation:

Above is a list of organisms found in a forest ecosystem. Which of the following groups of organisms are considered decomposers?
A) grass, acorn, moss
B) snake, mushroom, moss
C) bacteria, mushroom, fungus
D) vulture, mushroom, fungus
PLEASE HELP!

Answers

Answer: C, bacteria, mushroom, and fungus

Explanation:

These are all classified decomposers located within a forest ecosystem.

it is c) bacteria, mushroom, fungus

PLeAse hELP
Write a paragraph (5-8 complete sentences) using the prompt below:
An ecosystem has many living and nonliving things. Choose one producer, one consumer, and one decomposer. Explain how they work together.

Answers

Answer:

The producer is a plant. It produces vegetables and fruits for the consumer to eat. The consumer is an human. It eats the fruits and vegetables that came from the plant. Lastly the decomposer would be for example fungi. It breaks down dead plants and tree trunks. It helps the producer produce and the consumer comsume.

someone help no links ty

Answers

Answer:

The force of gravity on an object is called weight

Explanation:

the answer is weight

How does weathering and erosion contribute to the cycling of earth's materials? (specifically rock/the geophere)​

Answers

Answer:

Erosion breaks rocks down further and then moves them.

Which of these is least likely to show common ancestry?
A. homologous structures
B. analogous structures
C. DNA
D. vestigial structures

Answers

D. Vestigial structures
Other Questions
Choose all of the nouns that you would use in a sentence with"Cuesta" (singular).Select one or more:a. la ropab. los zapatos c. el abrigod. la bolsa e. las gafas de sol Here is a question Pls answer then correct if you want points. Here are also some mems and a coupl333 pfp if you need it :D1. Another student is doing something that annoys you while you try to work.2. You take a test and dont do so well.3. You wake up and find out that someone has been going through your backpack.4. You just cleaned the house and someone makes a big mess and doesnt clean up after themselves.5. Your friend sends you a rude and insulting text message. The mems are MLB Which of the following statements describes how the Punic Wars contributed to the development of the Roman Empire? (4 points) aThey allowed the Romans to focus more on expanding into the Western Mediterranean. bThey resulted in the overthrow of the Roman Republic and establishment of the Empire. cThey marked the end of Roman expansion in the Mediterranean region. dThey forced the Romans to reorganize their government with an emperor as ruler. Krista and Tina have been best friends since their vacation to Boston,Massachusetts. *Your answerIs this correct A shirt is on sale for 30% off. The expression p - 0.30p, where p is the original cost of the shirt, can be used to find the sale price. Which expression means the same as decreased by 30%? ??? ^^ What are the three best solutions for stress? Summarize how atmospheric pollution affects living organisms and the environment by completing the chart below: Which of the following is considered a social effect of a crime?O Strained relationship with loves onesChanges in sleeping and eating habitsAttempting to shut out the painMedical loss due to injury Which of the following is a monomial?A. 9/xB. 11x^2C. 20x - 14D. 20x^9 7xITS B: 11x^9 Match the values with the statistical measures for these data points.20, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 26 If $18 is 45% what is 100% help me............... : If m2=85.1 m 2 = 85.1 , then what is m4 m 4 ? 9. The ratio of Joe's weight to Colin's is 2:3. Colin's weight is 36kg. If Joe gains3 kg, what will be the new ratio of Joe's weight to Colin's? What is the solution to this system of linear equations? What is the answer to question b and d question on the picture: Try These questions out and Ill give you brainliest no links posted on My question or I will report you PLS HELP According to the theory of spontaneous generation, tadpoles were believed to arise form dead flesh. True or False. A. FALSE B. TRUE