Why do we breathe in oxygen
and exhale carbon dioxide?
A. Oxygen is a product of cellular respiration.
B. Both gases are produced during cellular
respiration.
C. Oxygen is required to start cellular
respiration, and carbon dioxide is a product.

Answers

Answer 1

Answer:

When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide. ... Oxygen helps our cells work harder by breaking down the nutrients we get from food like sugars. With sugars and oxygen, our cells can create the energy they need to function.

Explanation:

c


Related Questions

How is a pencil biologically different from a cat?

Answers

A cat has a biological/chemical makeup, via animal cells. While a pencil doesn’t have a biological makeup because it’s just graphite wood and rubber, while the cat is flesh skin and bone.

Polytheism is the belief in one all-knowing God.

True or false​

Answers

Answer:

it's false

coz

Polytheism is the belief in or worship of more than one God.

2) The data here indicates the number of species of amphibians that are
affected by several factors in their environments.Calculate
approximately how many times more amphibian species are impacted
by habitat change than the presence of pesticides and chemical toxins.
A) 3.5
B)
5
100
D) 2500

Answers

Answer: B. 5

Explanation:

A man with type A blood whose mother was type O is married to a woman with type AB blood. What are the blood types of their children and in what proportion?

PLEASE HELP I DON"T KNOW HOW TO FIGURE IT OUT!
I"ll put you brainliest

Answers

Answer:

possible blood type is A...50% ,B 12.5% or AB 37.5%

:)

Write the molecular formula of glycerol and also write it's two properties.​

Answers

Explanation:

Hey there!

The molecular formula of glycerol is:C3H5(OH)3

Two properties of glycerol are:

It is colourless viscous liquid with sweet tastes.It freezes at 17.8° and it's boiling point is 290°.

Hope it helps..


Which of the follwoing supplies us with the energy we need?
DAP
ATP
ATM

Answers

Answer:

the answer is atp because an atm is a money despincer and dap is when a fish lets the fly bob lightly on the water and atp is molecules sending energy to are cells.

Explanation:

The process of creating a population of genetically identical cells from a single cell

Answers

Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.

wakko warner so swag loml

Answers

Answer:

OMG HE'S SERIOUSLY THE CUTEST CARTOON CHRACTER IN THE EXSITENCE OF THE UNIVERSE!!!!!!!!!!!!!!!!!(his brother is second)

LOOK AT THE CUTIES!!!!!!!!!!!!!!!!!!!!!!!

One major difference between animal cells is___
A)Plant cells produce their own food/energy, animal cell can’t
B)Animal cells contain DNA, plant cells dont
C)Plant cells can divide and replicate, animal cells can’t
D)Animal cells are more complex than plant cells

Answers

Answer: I believe the answer is D.

Explanation:

Animals are more complex.

Which cell structures do bacteria cells contain? Select all that apply.
cell membrane
cell wall
nucleas
mitchocondria
chloroplasts

Answers

one of them are nucleus for sure, just don’t know the rest. Sorry
Cell wall, nucleus, and chloroplasts are the cell structures in a bacteria cell

Several kinds of specialized cells work together to create the sense of hearing. Hair-shaped cells sense vibrations and nerve cells send signals to the brain. Structural cells hold the hair cells in place. No matter their specialty, which functions must all cells perform to survive? Choose the three statements that apply.

Answers

Answer:

The correct answer is -

bringing in nutrients and water,

getting rid of wastes, and

obtaining energy.

Explanation:

All cells no matter what type of cell they are or their specialty, they need to bring water and nutrients to work properly and survive. These cells also need to remove cellular waste to prevent toxicity in the cell. All the toxic material or metabolic waste must be removed from the cells.

All the cells of the bodu=y including hair-shaped cells or structural cells all required energy to perform their function therefore obtaining energy is one of essential function cell need to be performed.

4. Write the building units of the below given nutrients.
a. Carbohydrates -
b. Proteins-
c. Nucleic acids -​

Answers

Explanation:

1)

building blocks of Carbohydrates are monosaccharides that are simple sugars

2)amino acids are the building units of proteins there are 20 amino acids found in human body that are building blocks of proteins

3)Nucleotides are the building blocks (monomers) of nucleic acids, DNA and RNA.

(word bank)

_____ is an effective way to reduce air and water pollution.

plz help!!!

Answers

i’m too certain but i believe the answer is recreation

why are the sightings of some comets so many years apart?

Answers

Answer:

they have long elliptical orbits

Explanation:

Which of these is an external pest
for beef animals?
A. Crickets
B. Grasshoppers
C. Lice
D. Spiders

Answers

Answer:

C

Explanation:

Lice. External parasites are those that live on the outside of the body. A few of the most common external parasites that affect beef animals

FUNCTIONS OF THE LIVER OTHER
THAN PRODUCTION OF BILE​

Answers

Production of certain proteins for blood plasma.

Explanation:

production production of certain proteins for blood plasma this is best function of bile

Animal cells are considered eukaryotic, and bacteria cells are considered prokaryotic. The difference between these two cell types is that–

Answers

Answer:

The main difference is that in prokaryotic cells the genetic material is not separated from the cytoplasm and eukaryotes present the genetic material is organized in chromosomes surrounded by a membrane that separates them from the cytoplasm.

Explanation:

All living beings are made up of cells that, depending on their structure, can be eukaryotic or prokaryotic. The eukaryotic cell is the building block of life for protozoa, fungi, plants, and animals. It is characterized by keeping its genetic material packed within a membrane, forming the nucleus. It also has other intracellular structures surrounded by membranes, known as organelles: mitochondria, vesicles, chloroplasts, among others.The prokaryotic cell is a simple organism composed of a membrane and cytoplasm, which lacks a nucleus and does not present organelles like eukaryotic cells ( mitochondria, chloroplasts and endoplasmic reticulum). In addition, it has a cell wall that supports the cell.

Max tried an experiment in which he added red-dyed salt water to clear freshwater. He noticed that a lot of the red water sank below the clear water. Which of the following statements explains why this happened?
a. Adding salt to water makes it more dense.
b. Adding salt to water makes it less dense.
c. Adding salt to water decreases its temperature.
d. Adding salt to water increases its temperature

Answers

Answer:

A

Explanation:

Adding salt to water causes its density to increase. Denser water will sink below less dense water.

As salt water is denser and will sink at the bottom and adding the salt raises the temperature of water body and hence will make it more warm and saline.

A max tries to add red dyed salt water to clear the fresh water he sees a red color sinking below the fresh water that is cool.

The option D is correct.

Learn more about the  which he added red-dyed salt water to.

brainly.com/question/8499012.

What two gases make up most of the atmosphere?

Answers

Answer:

Using the slope-intercept form, the slope is −35 . The equation of a perpendicular line to y=−3x5+3 y = - 3 x 5 + 3 must have a slope that is the negative reciprocal of the original slope

Answer:

Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N2) and about 21% oxygen (O2).

what are the effecta of hyposecretion of growth hormone​

Answers

Too little growth hormone (deficiency) results in poor growth in children. In adults, it causes a reduced sense of wellbeing, increased fat, increased risk of heart disease and weak heart, muscles and bones. Less muscle (lean body mass) Less strength, stamina and ability to exercise without taking a rest. Reduced bone density and a tendency to have more bone fractures as they get older.

Why can algal blooms be dangerous?

a. Some dinoflagellate species synthesize toxins.
b. Too much algae can limit photosynthesis.
c. dinoflagellates use up needed oxygen
d. Algae produce methane.
e. Too much algae causes pollution.

Answers

Answer:

A.

Explanation:

I hope I helped you !!!


Someone help me with this plz

Answers

A has no motion
B has a net force of 18 and will go to the right with 2 N of force
D has a net force of 30 but won’t move
E has a net force of 20 and will go right
F has a net force of 35 and will go to the left with 15 N
G has a net force of 120 N and will go east
(your picture doesn’t show what the force of the right arrow in C)

Parents that are heterozygous for having freckles (dominant) are crossed. Which correctly describes their offspring?
O Twenty-five percent have freckles.
O Twenty-five percent are Ff.
O Seventy-five percent have freckles.
O Seventy-five percent are Ff.

Answers

Answer:

In a cross of parents heterozygous for having freckles, the ratio of their offspring is (C) Seventy-five percent have freckles. Let allele F be dominant and allele f be recessive. Heterozygous parents will have genotype Ff.

Explanation:

Seventy-five percent have freckles.

What is homozygous dominant genotypes?

Homozygous dominant is a genotype that consists of two dominant alleles for a gene.

What is heterozygous dominant in biology?

'heterozygous' organism for a particular trait means that it possesses dissimilar alleles (e.g. Aa); one of the alleles is dominant and the other is recessive.

Hence, C is correct option

To learn more about heterozygous ,here

https://brainly.com/question/228969?referrer=searchResults

#SPJ3

Question 4 (3 points)
(03.01 LC)

Which of the following methods uses the decay of atomic particles in an object to find its exact age? (3 points)

a
Fossil dating

b
Geologic dating

c
Radioactive dating

d
Relative dating

Answers

Answer:

C. Radioactive dating

I know this because radioactive dating is done by examining the atomic particles found in an object. The atomic particles decay over time at a predictable rate. Scientists are able to measure the rate of decay to establish the age of the fossil, organism, and/or material.

Answer:   C. Radioactive dating

I know this because radioactive dating is done by examining the atomic particles found in an object. The atomic particles decay over time at a predictable rate. Scientists are able to measure the rate of decay to establish the age of the fossil, organism, and/or material.

Explanation:  i got it right on the test. mark as brainly

4. Which of the following crustal features would be the result of two
continental tectonic plates moving away from each other? *
B Volcanoes on land
A Mountain range
C Rift valley
D Mid-ocean ridge

Answers

Answer:

A mountinrange

Explanation:

because the plates are moving away from each other

Describe the role of the plate tectonics in the formation of the Himalayas

Answers

You just have to zoom in but that’s your answer, have a great day

What might explain why light travels in a straight line? Group of answer choices If there is nothing to interfere with light waves, they should travel in a straight line. Light waves will always travel in a straight line, even if they come into contact with another object. Light waves don't travel in a straight line. Light waves travel in a straight line because sound waves travel in a straight line.

Answers

Answer:

A. If there is nothing to interfere with light waves, they should travel in a straight line.

Explanation:

A light wave is a transverse wave, and do not require material medium for its propagation. It travels in straight lines in all directions from the source.

Light waves travel in straight paths (a principle referred to as the rectilinear propagation of light) known as rays, of which the combination of two or more rays gives a beam of light. When there is an obstruction on or interference with the path of light, it stops traveling in a straight line due to either absorption, refraction or diffraction.

When light from a source is forced to travel in one direction only, it is said to be polarized.

Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation.


is random

is a mechanism for evolution

is often related to disasters

is also called “migration”

deals with movement between populations

Answers

Answer:Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation.

✔ Genetic drift

is random

✔ Both

is a mechanism for evolution

✔ Genetic drift

is often related to disasters

✔ Gene flow

is also called “migration”

✔ Gene flow

deals with movement between populations

Explanation: i got it right

Answer:

Genetic drift- is random

Both- are a mechanism for evolution

Genetic drift- is often related to disasters

Gene flow- is also called "migration"

Gene flow- deals with movement between populations

Explanation:

I just did the assignment. Hope this helped :)

GIVING BRAINLEIST!!!!!!

Answers

Answer:

i would say C.

Explanation:

They have a PH of 7

Answer:

The answer is A.

Need help fast will mark brainliest

Answers

The answer should be option C.
As seen in the picture, the parent plants both have blue as the dominant gene, so most of the offspring received this as their dominant trait.
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please help !!!!!Evaluate the following image to solve for surface area and volume:surface area ?volume? The Science Club went on a two-day field trip. The first day the members paid $40 for transportation plus $14 per ticket to the planetarium. The second day they paid $100 for transportation plus $11 per ticket to the geology museum. Write an expression to represent the total cost in dollars for two days for the n members of the club.An expression that represents the total cost in dollars for two days for the n members of the club is given by ? what are the two conditions for work done 6. Expand the expression 4(x + 5).PLEASE HELP DUE TOMORROW What is the volume, to the nearest hundredths cubic centimeters, of the sphere shown below? May someone help me understand 2 step equations 3y + 6 = 12 Match the expression to the correct property that is shown.Question 3 options:Identity Property of MultiplicationIdentity Property of AdditionDistributive Property Multiplicative Property of ZeroCommutative Property of Addition Associative Property of AdditionAssociative Property of MultiplicationCommutative Property of Multiplication1. 9+2+(4+3)=9+(2+4)+32. y(xz)=(yx)z 3. 4+3+2=2+4+34. 5x 0=05. -12 + 0 = -126. 1101=1107. m43=4m38. 4(3x+1)=12x+4 (10-3) Homework K pearson school What is 9 3/7 in simplest form? round off 87.19236769 to nearest ten Curicun, named for marie curie, has approximately 25 different isotopes that emit an alpha particle when their nuclei decay. If curium-247, the most abundant nuclide, emit and alpha particle, what daughter nuclide is formed? Read the sentence carefully and choose the option that answers the question.Manuel delega las responsabilidades a los voluntarios en el hogar de ancianos.Which pronoun would you use to replace the direct object in the sentence above?Remember: The direct object pronoun replaces the answer to the question "what" in the sentence. La Lo Las Les What was the result of the restoration in England Which is the value of x?X=16 X=29X=44X=46 Suppose there are n rectangular prisms stacked on top of each other in various ways to form one solid. Each has L=w and a height of h. Using cavaliers principle, what is the volume of the solid which two planets have the same density ? Your spiritual self is Write a sentence using the following word: polygons Can someone answer these 3 questions??? It will be easier to lift a load in wheel Barrow if the load is moved towards the wheel. Give reason