Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Answers

Answer 1

Answer:

The Cornea

is the answer


Related Questions

Ten year old Matt Zigbowski struggles at school. His teacher seats students alphabetically, so he is at the back of the classroom. He cannot see the words on the chalkboard from his desk. When he goes to the teacher's desk near the chalkboard, he can see the words. What is probably wrong with his eyes?

a. hyperopia
b. myopia
c. astigmatism
d. astigmatism and myopia
e. astigmatism and hyperopia

Answers

Answer:

Ten year old Matt Zigbowski struggles at school. His teacher seats students alphabetically, so he is at the back of the classroom. He cannot see the words on the chalkboard from his desk. When he goes to the teacher's desk near the chalkboard, he can see the words. What is probably wrong with his eyes? D. ASTIGMATISM AND MYOPIA


Which type of bond, denoted by the arrows, allows DNA to be readily replicated?

Need for a final will mark brainliest!

Answers

Hydrogen bonds but I’m not provided in detail on the question

Answer:

the answer would be hydrogen bonds as another chemical will come down the center of the double helix and break the hydrogen bonds allowing DNA synthase II to come along a replicate it.

why,we have more mitochondrial in our tissue muscles? -sorry for bad eng

Answers

Answer:

This is because mitochondria produce ATP during aerobic respiration and ATP is needed for muscle to contract. ... Muscles cells contain more mitochondria because they have to release large amount of energy quickly for movement.

Explanation:

Hope it's help

The electron transport process makes water and ATP and is sometimes called
because it requires oxygen.

Answers

Answer:

respiratory chain... hope that's right

Aerobic Pathaway/respiration

Answer the following for 20 points ……….

Answers

The grain size for location D (hornfels) is fine.

Menstrual cycle has four major phases; menstrual phase, follicular phase, ovulation phase and pregnancy phase true or false?​

Answers

Answer:

False

Explanation:

The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase.

what bonds in an atp molecule store the chemical energy used by cells?

Answers

Answer:

quais ligações em uma molécula atp armazenam a energia química usada pelas células?

Explanation:

espero ter ajudado boa noite

how is the energy in food used in our body​

Answers

Answer:

The human body uses the energy released by respiration for a wide range of purposes: about 20% of the energy is used for brain metabolism, and much of the rest is used for the basal metabolic requirements of other organs and tissues.

Why is air temperature above land warmer than the air temperature above water in the same location during the summer?

Answers

Answer:

Sea breezes happen during the hot, summer days due t the unequal heating rate of land and water

Explanation:

Solar heating of the Earth’s surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler water surfaces.

hope it is useful

Under which conditions would air hold less water vapor than it holds at 30°C
(86°F) with sunny skies?
A. 34°C (94°F) with cloudy skies
B. 30°C (86°F) with cloudy skies
C. 22°C (86°F) with sunny skies
D. 32°C (90°F) with sunny skies

Answers

Answer:

B

Explanation:

jus CS its right

The relative humidity of the air affects how much water vapor it can hold. 30°C (86°F) with cloudy skies would air hold less water vapor than it holds at 30°C (86°F) with sunny skies. So, the correct option is B.

What is Relative humidity?

Relative humidity (RH) measures the amount of moisture in the air compared to the maximum amount of moisture in the air at a given temperature and pressure. It is a standard figure for describing the moisture content of the air and is expressed as a percentage.

At a given temperature and pressure, air is considered to have 100% relative humidity when it contains all the moisture it can hold. The temperature at which the moisture in the air begins to condense into droplets is known as the dew point.

Therefore, the correct option is B.

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How would this impact the organism?

Answers

Answer:

how would what impact the organism?

why are there political battles over the budget​

Answers

There are battles because money is getting really hard to come by and there are a lot of people are don’t want to work so political parties are forced to have “battles” because everyone is becoming “money hungry”

function of nucleus, mitochondria ,endoplasmic reticulum, vacuoles ​

Answers

Answer:

nucleus...controls all the activities of the cell and carrries the genes

mitochondria..site for respiration that yields energy for the cell

endoplasmic reticulum... protein synthesis and lipids metabolism

vacuoles.... handle waste products and are responsible for regulation of osmotic pressure of a cell also

Explanation:

is this helpful?

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information.

Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions.

A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products.

The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function.

Hope this helps!!

(It’s a big paragraph to know it but you will understand)

Explain how homologous structures are used as a source of evidence to infer evolutionary relationships between modern and fossil organisms

Answers

Answer:

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

Explanation:

Analogous structures demonstrate that identical selective pressures might result in similar adaptations, whereas homologous structures indicate evidence for shared ancestry.

What are analogous structures?

In contrast to homologous structures, analogous structures are characteristics of different species that have evolved in response to a similar environmental challenge and are similar in function but not necessarily in structure.

While comparable structures demonstrate that similar selective pressures can result in similar adaptations, homologous structures suggest that they have a common ancestor (beneficial features).

Therefore, homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

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The species that plays the biggest role in the habitat is?

Answers

Answer:

A keystone species is a species that plays an essential role in the structure, functioning or productivity of a habitat or ecosystem at a defined level (habitat, soil, seed dispersal, etc)

Answer:

the one that does the most damage, both to its habitat and the population of species around them.

Explanation:

what is the main function of the mitochondria in a plant cell?

Answers

Answer:

Produce energy for the cell.

Explanation:

In what layer of the atmosphere is weather occuring and the layer where we live?

Answers

Answer:

Atmosphere takes place in the stratosphere and we live in troposphere

The layer where the weather occurs and where we live is called the Troposphere layer.

mark me brianliest if i helped :)

5. What enzyme makes it less likely that DNA will be lost from telomeres during replication?​

Answers

Answer:

Telomearse

Explanation:

Which of the following describes the changes that occur during the 3rd week of the menstruation cycle? A. The egg matures within the ovary. B. The egg travels through the fallopian tube to the uterus. C. The unfertilized egg is removed from the uterus. D. Egg travels from the ovary into the fallopian tube. Please select the best answer from the choices provided. A B C D.

Answers

The changes that occur during the 3rd week of the menstruation cycle is

the egg travels through the fallopian tube to the uterus.

Ovulation is the process that takes place during the 3rd week of

menstruation. The Luteinizing hormone (LH) stimulates the release of the

egg from the ovary and travels through the fallopian tube to the uterus.

At this stage, the individual has a higher chance of getting pregnant when

unprotected sex occurs.

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Which three terms could be used to identify the carbon (c) in this chemical equation

Answers

Answer:

element product atom

Explanation:

Which nitrogenous base is NOT found in RNA?
1 Adenine
2 Cytosine
3 Guanine
4 Thymine
5 Uracil

Answers

Uracil is a nitrogenous base found in all RNA but not present in DNA. There are multiple unusual modified bases found in tRNAs not found in DNA as well: Dihydrouridine, Pseudouridine, 1-methyl adenosine, N2,N2-dimethylguanosine, inosine, and 1-methyl-inosine. There are other nitrogenous bases that are metabolic intermediates that are not found in nucleic acids such as inosine (also in tarna), hypoxanthine, xanthine, dihydroorotate, orotate, and the purine break down product uric acid.

love ur pfp btw!

what experiments led to the discovery of dna as the hereditary material?

Answers

Answer:

In the 1920s, Frederick Griffith He was studying two different strains of a bacterium, called R (rough) strain and S (smooth) strain. He injected the two strains into mice. The S strain killed (virulent) the mice, but the R strain did not (non-virulent). Griffith also injected mice with S-strain bacteria that had been killed by heat. As expected, the killed bacteria did not harm the mice. However, when the dead S-strain bacteria were mixed with live R-strain bacteria and injected, the mice died.

Explanation:

Why are zebra mussels able to spread so quickly in the United States?
a. They are weaker competitors than the local mussels.
b. They grow logistically.
C. They are more zebra mussels than there are resources.
d. There are no natural predators of the zebra mussel in the U.S.​

Answers

The answer that I got is C.

HELPP!!! BRAINLIEST OF CORRECT!!!

How can increased genetic variation help some offspring to survive?

Answers

Being passed down those things help them to the fact on offspring inharitence

what are 3 structures(organelles) that plant cells that animal cells do not?

Answers

Cell wall, chloroplasts, and large vacuole
cell wall,chloroplasts, and large vacuole

Where do humans get the majority of their carbon from? (think biomolecules)

Answers

Answer:

Carbon is the most important element to living things because it can form many different kinds of bonds and form essential compounds.

Explanation:

like this plz <3

Carbon is the most important element to living things because it can form many different kinds of bonds and form essential compounds.

Can somebody help me with my phycology

Answers

Yeah I can help with that

The abundance of sodium leak channels in skeletal muscle is ______ the abundance of sodium leak channels in a typical neuron.

Answers

The abundance of sodium channels in muscles is as important as the abundance of sodium leak channels in a typical neuron.

Sodium plays an essential role in the body, this includes important functions such as:

Intervening in the process of muscular contraction.Intervening in the process of interneural communication.

This is possible through sodium channels in cells that allow sodium to enter or leave the cell at very specific times and this causes specific reactions in cells.

In neurons: Sodium channels are abundant and essential because due to the action of sodium signals are passed from one neuron to others.In muscles: Sodium channels are abundant and essential, especially in skeletal muscles. The role is sodium is to contract or relax muscles, which makes movement possible.

Based on this, the presence of these channels in both neurons and skeletal muscles is equally important.

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exchange of gases in the human breathing system takes place in the?​

Answers

Answer

alveoli

Explanation

During gas exchange oxygen moves from the lungs to the bloodstream. ... This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Required Answer :-

The exchange of gases takes place in the alveoli.

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Additional information :-

Alveoli are microscopic air sacs.

They are the primary sites of exchange of gases. Gas exchange also occurs in lungs and tissues by diffusion.

Atmospheric air contains little CO2, but blood flowing in pulmonary capillaries has a higher concentration of CO2.

CO2 diffuses from higher concentration in blood across walls of alveolar capillaries to lower concentration in air in alveoli.

Blood coming into pulmonary capillaries is oxygen poor and alveolar air is oxygen rich.

Oxygen diffuses from higher concentration in alveoli across walls of alveolar capillaries to lower concentration in blood.

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Hope it's helps !!

a particular peach tree produces peaches that are more resistant to disease than other peaches. what method would reproduce these exact peaches?

Answers

The best way to get the exact preach tree is through Asexual reproduction.

Asexual reproduction is the only method of reproduction in which the exact copies of genes in the parents are transferred to the offspring.  If  cross pollinations( Sexual reproduction') with the a peaches plants from a different parents plants takes place, genetic variation at meiosis will not permit the inheritance of the exact copies of genes for diseases resistance.

Therefore, it is ideal in this scenario to by pass crossing over and recombination at meiosis, in order get the exact copes of genes for disease resistance through mitosis in the offspring, asexual preproduction is used.

For more on asexual reproduction; https://brainly.com/question/4100787

The method that would produce peaches of exactly the same characteristics would be cloning or vegetative propagation.

Cloning the peaches that are more resistant to disease will result in the production of peaches with exactly the same morphological and genetic attributes.

The same result would be obtained by propagating the desired peaches asexually using relevant means.

More on asexual reproduction can be found here: https://brainly.com/question/4100787?referrer=searchResults

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