Do anyone why blood is red?

Answers

Answer 1

Answer:

Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream.

Blood gets its bright red color when hemoglobin picks up oxygen in the lungs

the oxygen essentally makes it red

Explanation:


Related Questions

Why do disruptive selection pressures tend to favor rapid evolutionary changes?

a. They result in sudden gene frequency changes.

b. They eliminate extreme genetic traits.

c. They select for one variation of a genetic trait.

d. They result in environmental adaptation.

Answers

Answer:

The correct answer is a. They result in sudden gene frequency changes.

Explanation:

The evolution of life, its diversity, is reduced to the processes of microevolution or speciation. But not all evolutionary processes in populations end with the formation of a new species. Disruptive selection is a type of natural selection that selects against the average individual in a population. The composition of this type of population would show phenotypes (individuals with groups of traits) of both extremes but with very few individuals in between. Disruptive selection tends to increase intra-population variability and, to this end, favors individuals at both ends of the phenotypic distribution, that is, as a final result there is a break in two different populations, which can lead to speciation.

Answer:

A"They result in sudden gene frequency changes."

Explanation:

just took the test for edg and got it right

The workers who paid a rate for every day they work are known as

Answers

Answer:

piece work

Explanation:

I hope this is right


Please help me with these

Answers

those are nucleotides

since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides

the first nucleotide has cytosine as it's nitrogenous base

the second nucleotide has adenine as it's nitrogenous base

the third nucleotide has thymine as it's nitrogenous base

please answer this!!

Answers

Answer:

mouth coughing out biok sid carbon

Can someone please help me

Answers

Answer:

carbon dioxide plus water in the presence of light energy to sugar and oxygen

What events must have occurred for fossils of marne organisms to be in a mountain far above sea level?​

Answers

Answer:

el sapo

Explanation:

If a male organism has 40 chromosomes in each body cell, how many chromosomes does a female of the same sex have in each of her body cells?

Answers

Answer:

40

Explanation:

they're usually the same

PLEASE HELPPPPPPP

(Monstro the Goldfish & Epigenetics)

Answers

Answer:

mmmmmmmmmmmmdddddd

Explanation:

ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

(GIVING BRAINLIEST) ______________ energy is the total potential and kinetic energy of particles in an object.
Group of answer choices

Chemical

Nuclear

Thermal

Answers

Answer:

Thermal

Explanation:

The total kinetic and potential energy of the particles in an object is called thermal energy.

Answer this please I promise 30 points + mark as brainliest ( only relevant answers )

Answers

Answer:

A) Group X = Rose ,mango tree,marigold,palm tree

B) This is the answer of group X =Rose ,mango

This is the answer of group Y =Fern ,pine trees

Explanation:

Answer:

jen, from my heart im saying i lu.v u for real

its been almost 5 months weren't having the same old c.hat we used to have.

ik that ur scared to c.hat with  me since the day ur mom caught u

but still the old memories keep coming into me how many times i try to forget u, i still lu.v u jen still lu.v u

and as i made u a promise that one day we'll meet, i still keep thqat word and that day even if its just one day, we're gonna enjoy the max we could

i'll be waiting for that moment and i hope u would be too...

still lu.v u :(  .......

Describe the process of water moving in and out of the cell.

Answers

Answer:

Water moves across cell membranes by diffusion, in a process known as osmosis. Osmosis refers specifically to the movement of water across a semipermeable membrane, with the solvent (water, for example) moving from an area of low solute (dissolved material) concentration to an area of high solute concentration.

Explanation:

o
1. Which criteria are used to classify amphibians into orders?

Answers

Answer:

They are classified into three orders: frogs and toads, salamanders and newts, and caecilians.

Approximately 8,100 species of living amphibians are known. First appearing about 340 million years ago during the Middle Mississippian Epoch, they were one of the earliest groups to diverge from ancestral fish-tetrapod stock during the evolution of animals from strictly aquatic forms to terrestrial types. Today amphibians are represented by frogs and toads (order Anura), newts and salamanders (order Caudata), and caecilians (order Gymnophiona). These three orders of living amphibians are thought to derive from a single radiation of ancient amphibians, and although strikingly different in body form, they are probably the closest relatives to one another.

Select the correct bisector of the segment.
B
A
B
B
B
А
M
B
B
D

Answers

Answer:

C

Explanation:

it has the example figure number 7 and also it has the correct bisector

What increases as you move from the surface to the interior of the Earth?

Answers

Answer:

Heat/temperature

Explanation:

"There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements." These give the core and a few of the outer layers of the earth more and more heat.

(PLEASE HELP I WILL MARK BRAINLEST) Limestone is a sedimentary rock and marble is a metamorphic rock. Despite limestone and marble having the same chemical makeup, which statement describes why they are classified as different rocks?

They formed at different times.

They were formed from different fossils.

They were formed by different methods.

They formed in different amounts of time.

Answers

Answer:

The were formed by different methods

They were formed by different methods is the statement that describes that limestone and marble are classified as different rocks.Therefore, the correct option is C.

What is limestone?

Limestone is a sedimentary rock primarily made up of calcium carbonate (CaCO3) in the form of the mineral calcite. It is formed from the accumulation of shells, coral, and other debris from marine organisms.

Marble is a metamorphic rock that forms from limestone, which is a sedimentary rock composed primarily of calcium carbonate (CaCO3). It is formed through a process of metamorphism, which involves the transformation of the original rock through heat and pressure over time. Therefore, the correct option is C.

Learn more about limestone, here:

https://brainly.com/question/11726100

#SPJ3

The question is incomplete, but most probably the complete question is,

Limestone is a sedimentary rock and marble is a metamorphic rock. Despite limestone and marble having the same chemical makeup, which statement describes why they are classified as different rocks?

A. They formed at different times.

B. They were formed from different fossils.

C. They were formed by different methods.

D. They formed in different amounts of time.

when an experiment shows that two variable are closely related the experiment shows what

Answers

Answer:When an experiment shows that two variables are closely related, the experiment shows correlation between the two variables. Correlation helps to show how two variables are related and connected. Related variables are said to be correlated. For example, we can say, good health is correlated to daily exercise routine.

Explanation:

Why is Linnaeus called the father of taxonomy?

He created the classification level called domain.

He developed the modern system of naming organisms.

He explained the steps that led to the formation of a species.

He used more than one common name for the same organism

Answers

Answer:

he developed the modern system of naming organisms

Due today, please help

Answers

The nitrogen bases will only bond with one specific nitrogen base such as A - T and G - C. This is known as:

Complimentary Base Pairing

Which antivenom will save Tyler?

Select one:

a.
Antivenom A


b.
Antivenom B


c.
Antivenom C


d.
Antivenom D

Answers

Answer:

b

Explanation:

What change to the following molecule's structure would result in a saturated fat?

Answers

Answer:

It needs to gain a Hydrogen atom to eliminate the double bond between the two carbons.  

Explanation:

Unsaturated fat has one or more double bonds in its molecule. Saturated fat has a single bond. If you want an unsaturated fat to become saturated it needs to gain more more hydrogen atoms which will eliminate the double bonds between carbons of the unsaturated fat.

Hope this helped :)  

tall pea plants are dominate over pea plants if two hybrids (Tt) are crossed ​

Answers

Answer:

Naruto usamaki is the greatest hokagey in the leaf village

if you step on a sharp object muscles in your leg will rapidly put your foot away.


what is the correct term for this type of reaction?​

Answers

Answer:

Explanation:

Sharp object the reaction is a reflex its involuntary and it doesn't involve ur brain it protects u from damage.So u step on the sharp object whihc is a stimulus so the reaction is reflex its quick and automatic.

Hope this helps

Reflex arcs can also be more complex. For example, consider what happens when you step on a sharp object. As in the example above, a sensory (pain) neuron carries an impulse to an interneuron in the spinal cord. The interneuron synapses with motor neurons which pull your foot away from the sharp object, just as in the example above. However, if that was all that happened you would probably fall over! The interneuron also synapses with motor neurons which control the muscles of the other leg. These muscles adjust your position so you do not fall. The interneuron synapses with still other neurons, which carry the information about what has happened to the cerebellum (which coordinates the muscular activities) and the cerebrum, so that you become "conscious" of what has happened and can take further voluntary action.

What kind of bacteria are able to change pure nitrogen into ammonia compounds?
Group of answer choices

nitrifying

decomposing

nitrogen-fixing

denitrifying

Answers

Answer:

the anwer is nitrifying fixing as given in your text .

Explanation:

Decomposers also produce ammonia by converting animal waste and dead plants and animals into organic and inorganic materials, including ammonia.

Nitrifying I hope this helps

Drag each image to indicate whether it shows point source pollution or non-point source pollution

Answers

Answer: The first and the last are point source and the second and third are non-point source.

Explanation: I got these right on the quiz.

The first image and the last image are point source pollution while the second and third images represent non point source pollution.

A point source pollution refers to a pollution that is emerging from a particular point such as from a pipe. It is traceable to a given source. The non - point source pollution is not traceable to any particular source.

In the image as shown, the first image and the last image are point source pollution while the second and third images represent non point source pollution.

Learn more: https://brainly.com/question/8592296

In the process of respiration, organisms generally


a. use oxygen and give off carbon dioxide


b. use nitrogen and give off carbon dioxide


c. use carbon dioxide and give off oxygen


d. use carbon dioxide and give off nitrogen

Answers

Answer:

A

Explanation:

During respiration organisms use up oxygen given off by plants and give off carbon dioxide as by product

Gravitational force multiple choice

Answers

Answer:

Option B. The force would be quartered (factor of 1/4).

Explanation:

The gravitational force between two objects can be expressed with the equation:

By analyzing the equation, we can see that if we multiply both m1 and m2 by 1/2, the resulting new F would be lower by a factor of 1/4 (as 1/2 times 1/2 equals 1/4).

Thus the correct answer is option B.

Why are some pathogenic bacteria able to make toxins?

Answers

A pathogen is a microorganism that is able to cause disease in a plant, animal or insect. Pathogenicity is the ability to produce disease in a host organism. Microbes express their pathogenicity by means of their virulence, a term which refers to the degree of pathogenicity of the microbe. Hence, the determinants of virulence of a pathogen are any of its genetic or biochemical or structural features that enable it to produce disease in a host.

The relationship between a host and a pathogen is dynamic, since each modifies the activities and functions of the other. The outcome of such a relationship depends on the virulence of the pathogen and the relative degree of resistance or susceptibility of the host, due mainly to the effectiveness of the host defense mechanisms. Staphylococcus aureus, arguably the most prevalent pathogen of humans, may cause up to one third of all bacterial diseases ranging from boils and pimples to food poisoning, to septicemia and toxic shock. Electron micrograph from Visuals Unlimited, with permission.

The Underlying Mechanisms of Bacterial Pathogenicity

Two broad qualities of pathogenic bacteria underlie the means by which they cause disease:
1. Invasiveness is the ability to invade tissues. It encompasses mechanisms for colonization (adherence and initial multiplication), production of extracellular substances which facilitate invasion (invasins) and ability to bypass or overcome host defense mechanisms.

2. Toxigenesis is the ability to produce toxins. Bacteria may produce two types of toxins called exotoxins and endotoxins. Exotoxins are released from bacterial cells and may act at tissue sites removed from the site of bacterial growth. Endotoxins are cell-associated substance. (In a classic sense, the term endotoxin refers to the lipopolysaccharide component of the outer membrane of Gram-negative bacteria). However, endotoxins may be released from growing bacterial cells and cells that are lysed as a result of effective host defense (e.g. lysozyme) or the activities of certain antibiotics (e.g. penicillins and cephalosporins). Hence, bacterial toxins, both soluble and cell-associated, may be transported by blood and lymph and cause cytotoxic effects at tissue sites remote from the original point of invasion or growth. Some bacterial toxins may also act at the site of colonization and play a role in invasion. Acid-fast stain of Mycobacterium tuberculosis, the agent of tuberculosis (TB). The bacteria are the small pink-staining rods. More than one-third of the world population is infected. The organism has caused more human deaths than any other bacterium in the history of mankind. Although its ability to produce disease is multifactorial, it is not completely understood. American Society of Microbiology, with permission.

which is NOT part of the cell theory?

A) all living thing a are composed of cells
B) Cells are the building blocks of germs
C) All cells come from other cells
D) Cells are the basic units of structure and function in living things

Answers

Answer:

B.

Explanation: Hope this helps! ^^

17.
The human body uses carbohydrates as

Answers

Answer:

Carbs Provide Your Body With Energy

protiens

Explanation:

the four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses

1. Energy transfer is inefficient between trophic levels because

A. Molecules are fully digested from each trophic level.

B. Dead organisms and waste are recycled throughout the trophic levels.

C. Organisms within a trophic level are fully consumed.

D. All organisms within a trophic level die.

2. Primary productivity is defined as

A. The rate that plants and other photosynthesis organisms produce organic compounds.

B. The process where green plants and some other organisms convert light energy into chemical energy using carbon dioxide and water.

C. The overall amount of energy captured by plants and other photosynthetic organisms by the chloroplast.

D. The adjusted amount of energy in an ecosystem due to energy use by organisms for respiration.

Thanks if you help, It's highly appreciated. :-)​

Answers

Answer: b dead organisms And waste are recycled throughout the tropic levels.

Explanation:

Answer:

part 2

the rate that plants and other photosynthetic organisms produce organic compounds.

Explanation:

:)

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Describe the translation - Use what you have learned about dominant and recessive alleles to explain why Ravynis albino when neither of her parents is abino? OMGGGGG PLZ HELPPPP!!! 60 points!!!InstructionsRead Psalm 22 and Isaiah 53 paying close attention to the verses below.Research the verses in the chart below to determine which New Testament verses fulfill the prophecy found in the Old Testament (they are not in order).Using the list above, write a 250-word essay on how each Old Testament prophecy meets one or all of those guidelines.Remember to use proper grammar, punctuation, and spelling when typing your essay.Old Testament Prophecy New Testament FulfillmentPsalm 22:6-7 Romans 5:6-8Psalm 22:15-16 Matthew 27:39-40Psalm 22:18 Matthew 27:57-60Isaiah 53:4-6 Luke 23:33-34Isaiah 53:8-9 John 19:33-35Isaiah 53:12 Matthew 27:35 Select the correct answer.Which statement best describes Thomas Paine's use of evidence in the passage?OA.Paine used empirical evidence to support the claim that the Continental Army had performed creditably.Paine used empirical evidence to support his claim that Howe's Army had decisively defeated theContinental Army.Paine used anecdotal evidence to support his claim that the Continental Army had performed creditably.Paine used anecdotal evidence to support his claim that Howe's Army had decisively defeated theContinental Army.OB.OC.OD. Which describes the motion in a convetion current Tres consecuencias del pecado del Rey Salomn? this is a C H A T R O O M welcome all On a college test, students receive 4 points for every question answered correctly and lose 7 points for every question answered incorrectly. On a particular test, Terry answered 87 questions correctly and 46 questions incorrectly. What was his score on the test? Show your work. The side opposite from the right angle is called The figure below is the graph of the dimensions of a rectangle whose adjacent side lengths exhibit Inverse Variation (1,4) (2,2) (8,0.5) (16,0.25) Transfer of charge by touching is called... induction or conduction? Help me out please? tysvm! Read the excerpt from Utopia.The folly of men has enhanced the value of gold and silver because of their scarcity; whereas, on the contrary, it is their opinion that Nature, as an indulgent parent, has freely given us all the best things in great abundance, such as water and earth, but has laid up and hid from us the things that are vain and useless.Which historical fact will best help readers understand this excerpt? Find the slope and y-intercept of the line. Enter the y-intercept as the y-value of the point where thegraph intersects the y-axis.3x + 3y = 6 what is 4 1/2-3 5/6 from page 393 GO Math book what kinds of cases are heard by the district courts? What are the numbers of pi? All of the numbers please. Like all of them. PLEASE QUICK!!! In the (blank) nationalist uprisings swept across China, India, and TurkeyThis movement was a strong response to Western (blank)For all three countries, the rise of nationalism resulted in (blank) Pls help easy points Write an equation and solve. Round to the nearest hundredth where necessary.What is 25% of 96?A.) n 0.25 = 96; 384B.) n = 0.25 96; 24C.) n = 25 0.96; 24D.) n = 25 96; 2400