​Why do knuckles crack when you bend them

Answers

Answer 1

Answer:

The noise of cracking or popping in our joints is actually nitrogen bubbles bursting in our synovial fluid

Explanation:

It is because synovial fluid lubricates your joints like motor oil in a car's engine, reducing friction and preserving our cartilage.

PLS MARK BRAINLIEST :D


Related Questions

Help me pls!!!!!
Cmt now pls

Answers

Answer:

omg what is this

Explanation:

that is super hard

Try to compare the landscape differences between the surface of the moon and the surface of the earth​

Answers

Answer:

The Moon lacks an atmosphere, and the small amount of water that is present is "buried" in the polar areas. Finally, there is no life on the Moon. The major factor which does change the Moon's surface is the impact of meteoroids, forming craters. ... The surface of the Moon is very old, compared to the Earth.

Explanation:

HOPE IT HELPS

Why is it essential to fix smears on slides before staining?

a. to cause swelling of the cell to make interior structures more visible

b. to provide a nutrient medium to sustain the bacteria

c. to attach them to the slide

d. to enhance the uptake of stains

Answers

i believe that it is B

Why is Earth's outer core hotter than it's oceanic crust?
O Earth's oceanic crust is denser than Earth's outer core is.
O Earth's oceanic crust has lava flowing from the mantle.
O Earth's outer core has a composition of solid iron, and nickle.
O Earth's outer core is deeper within Earth than oceanic crust is.​

Answers

Answer:

Earth's oceanic crust is denser than Earth's outer core is.

Explanation:

I hope it's help u

Earth is that a good thing to say but I can’t hear yes

What dangers do acid rain cause

Answers

The dangers that acid rain cause are Air pollution like sulfur dioxide and nitrogen oxides can cause respiratory diseases, or can make these diseases worse. Respiratory diseases like asthma or chronic bronchitis make it hard for people to breathe.

Answer:

It causes respiratory issues in animals and humans. When acid rain falls down and flows into the rivers and ponds it affects the aquatic ecosystemAcid rain also causes the corrosion of water pipes, which further results in leaching of heavy metals It damages the buildings and monuments

Explanation:

Hope this helps :)  

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And have an amazing day <3

4. A student is given two different objects, a marble and a cube, that appear to be made of the same substance. The student did some measurements of the objects and
recorded the measurements in the table.
Volume before
adding the
marble
Volume of the
water with the
marble added
Mass of the
cube is 66
Mass of the
martile-715
Cube dimensions:
length 2.4 cm
width: 1.3 cm
height 2.7 cm
Using the student's measurements, What is the best determination that can be made about the objects?
The formula for density is D=MIV.
A. The objects are different substances because their masses are different
B. The objects are different substances because their densities are different.
C. The objects are different substances because their volumes are different.
D. The objects are the same substance because they have the same density

Answers

The true statement is that the objects are different substances because their densities are different.

Density is an intrinsic property of matter. It does not depend on the amount of substance present. It is a characteristic of substances. If two substances are the same, they must have the same density.

Considering the information presented here, the cube and the marble are different materials hence they have different densities.

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Which pair of scientific words have the same prefix? (1 point)
O Cell walls and cell membranes
O Nucleus and Bacillus
O Coccus and Bacillus
O Microbiology and microscopic

Answers

Answer:

Microbiology and Microscopic

Explanation:

These words are the only two that share a prefix (the beginning of a word), which is micro.

The pair of scientific words out of the options given that has the same prefix is: D. Microbiology and microscopic

Note the following:

Prefix is a word or letter (affix) that is placed before another word.

From the options given, microbiology and microscopic contain the same prefix: "micro-".

"Micro" means small or minute. Words that come after "micro" in biological science connotes something related to microorganisms. Such as microbiology and microscopic.

Therefore, the pair of scientific words out of the options given that has the same prefix is: D. Microbiology and microscopic

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Below is a photo of cells from a particular kind of organism.
Based on the structure of the cells, this organism is most likely to be a
A. unicellular eukaryote
B. Virus
C. multicellular eukaryote
D. prokaryote

Answers

Answer:

C i believe

Explanation:

The solidifying agent used most successfully in bacterial nutrient media is?

Select one or more:

a. Agar

b. Gel agrose

c. Peptone

O d. Gelatin

Answers

Answer:

a kkkkkkkkkkkkkkkkkkkkkkkkkkk

4. How do the nervous system and hormones
interact to maintain homeostasis?

Answers

Explanation:

through its receptors, the nervous system keeps us in touch with our environment. The portion of the brain that maintains the body's internal balance (homeostasis). The hypothalamus is the link between the endocrine and nervous systems. The hypothalamus produces releasing and inhibiting hormones, which stop and start the production of other hormones throughout the body

The chemical equation shown represents photosynthesis.



What is the role of substance A in photosynthesis?

It traps light energy from the atmosphere.
It combines with water to form glucose.
It cools the atmosphere by changing into vapor.
It changes into hydrogen in the presence of light.

Answers

Answer: The role of substance A in photosynthesis is: it combines with water to form glucose.

Explanation:

Answer: B. It combines with water to form glucose.

Proof of validity is shown below.

Cual seria la respuesta?

Answers

Answer:

2

3s+2p

Explanation:

by the way see the 2 above all the numbers that means squared!

good luck

‍‍

Mrs. Maxwell used the analogy “a cell is like a factory” to explain the idea of cell organization to her class, and she never went into any more details. Is this analogy good enough to present a true picture of a cell?

Answers

Answer:

Yes, because an organism can be considered a factory, so yes, a cell can be represented as a factory.

Explanation:

What is the function of proteins in a cell?
a. to control chemical reactions
b. to store genetic information
c. to cover the nucleus
d. to copy messages from DNA

Answers

Answer:

Explanation:

Please Help ASAP. I will give BRANIEST

Answers

Answer:Please Help ASAP. I will give BRANIEST

Explanation:id say it would maybe be the last one at the bottom

Answer:

d

Explanation:

16
Which of the following is true regarding the tegmentum (a section of the midbrain).
ed
out of
Select one:
O a. It is continuous with the gray matter of the brain stem and processes information from spinal nerves
O b. It is continuous with the white matter of the brain stem and processes information from cranial nerves
O c.
It is continuous with the white matter of the brain stem and processes information from spinal nerves
O d.
It is continuous with the gray matter of the brain stem and processes information from cranial nerves

Answers

○A

It is continuous with the gray matter of the brain stem and processes information from SPINAL nerves

Hope this helped you- have a good day bro cya)

Which statement describes the role of the organism indicated by the blue arrow in the food web?

Food web showing several different food chains. The blue arrow is pointing to an image of a red-tailed hawk. The hawk is shown to eat wood ducks and meadow vole which in turn feed on grass.
© FLVS

A primary producer that recycles organic molecules from sunlight
A secondary consumer that obtains its energy from the consumption of animals
A primary consumer that obtains its energy from the consumption of animals
A secondary consumer that recycles organic molecules by breaking them down

Answers

Answer:

Its B

B. A secondary consumer that obtains its energy from the consumption of animals

Explanation:

I took the test and I git this one right, you don't have to give me brainliest if not required, I just looked up this question and saw if I could get this right to help

I uploaded picture for trusting-ness

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A secondary consumer that obtains its energy from the consumption of animals.

Who are secondary Consumer?

Organisms that consume primary consumers for energy are known as secondary consumers. Herbivores, or species that only consume autotrophic plants, are always the main consumers.

Secondary consumers, however, might either be omnivores or carnivores. Omnivores consume both plant and animal stuff, while carnivores solely consume other creatures. Whatever a secondary consumer may be, it still needs to eat primary consumers to thrive.

Secondary consumers can be found in almost every environment on earth and occur in a wide variety of sizes and shapes. The severe habitats that secondary consumers reside in include icy tundras, parched savannahs, and arctic lakes.

Therefore, A secondary consumer that obtains its energy from the consumption of animals.

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White blood cells destroy_________ and remove them from the human body.

Answers

Answer:

pathogens

hope that helped <3

wich statement is an example of a scientific theory

Answers

Answer:

Big Bang Theory.

Explanation:

jsjsnbdbxhosmanndxbjskaekdjsn

All of the following could describe an individual with antisocial personality disorder except____
A. impulsive
B. manipulative
C. aggressive
D. responsible

Answers

Answer:

D) responsible

Individual with antisocial personality disorder rarely accept responsibility.

What is antisocial personality disorder?

A person with antisocial personality disorder has a long-term pattern of manipulating, exploiting, or abusing the rights of others. Antisocial personality disorder (ASPD) symptoms can start as early as childhood, although the disorder isn't recognized until adolescence or maturity.Antisocial personality disorder causes people to deceive, breach laws, act rashly, and have little regard for their own or others' safety. With time, symptoms may fade. They rarely express regret or accept responsibility.

What re the signs of antisocial personality disorder?

Antisocial behaviordeception, hostility, irresponsibility, manipulativeness, risk-taking behaviors, violence, impulsivity, impatiencelack of restraint Anger, weariness, or overall dissatisfactionPhysical substance addiction or abuse are also widespread.

hence a person with antisocial personality disorder can be impulsive, manuplative and aggressive but not responsible.

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Answer:

D. Responsible

Explanation:

Edge 2022

What does the term sustainable ecosystem mean sumbody answer rq

Answers

Answer:

Sustainability is the ability to maintain something over a long period of time. For an ecosystem, sustainability means maintaining ecological processes over long periods of time. ... So, if an ecosystem is able to maintain its structure and function over time in the face of external stress, it is said to be sustainable.

Explanation:

hope this helps!

Answer:

a sustainable ecosystem is an ecosystem that is able to maintain its structure and function over time in the face of external stress.

Hope it helps! :D

Explanation:

The flesh on the inside of an apple is white, and devoid of pigments. Why is this the case?

Answers

Answer:

The outside only looks pigmented because of the color reflecting off it, but the inside is white and unpigmented because it is reflecting all the colors. Does this help?

Which macromolecule contains the most-dense source of energy for ATP production?​

Answers

Answer:

 Lipids store the most chemical potential energy. Carbohydrates are more readily available though so the body use carbs when it can before accessing lipid storages.

  Proteins have some potential for making ATP but your body needs proteins to actually make the ATP and stuff so ideally you'll never really be burning protein for energy; rather it gets broken down and used for parts in machinery.

Explanation:



Which of the following statements about glucose, galactose, and fructose is most likely true?

Answers

Answer:

They are all monosaccharides

How do hydrogen bonds between molecules explain why they are polar?​

Answers

Answer:

The attractive force between water molecules is a dipole interaction. The hydrogen atoms are bound to the highly electronegative oxygen atom (which also possesses two lone pair sets of electrons, making for a very polar bond. Hydrogen bonds are very strong compared to other dipole interactions.

Explanation:

PLEASE HELP QUICKLY THANK YOU APPRECIATE IT ​

Answers

Answer:

6) Cytokinesis of a plant cell

7) Anaphase

In Ken Baum’s piece, which one do you think is the strongest policy argument against physician participation in a legally authorized execution?

Answers

The participation of a physician in a legally authorized execution goes against the oath taken by the professional, and this is the main argument against their participation.

A physician is a term used to describe a doctor who has obtained a university degree to practice medicine. Once completed their university career and in order to obtain their medical license, Physicians must take an Oath.

The Oath in question is the Hippocratic oath. Among many things, this oath tells the professional to act in a certain manner, always in the best interest of the patient in question. This is directly contradicted by the actions of a physician that participates in the legally authorized execution of a human being and is one of the main reasons against this participation.

Though I could not locate  Ken Baum’s piece online to provide direct evidence, I have given a popular argument against the physicians' participation in this matter.

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Why would small plants attach themselves to the sides of large trees high above the ground

Answers

Epiphytes grow on sides of tall trees in an attempt to be closer to the sunlight. They have no roots, and collect water and nutrients from the air. They begin their life in the canopy from seeds or spores transported there by birds or winds.

Describe the movement of the tectonic plates in model C. What is this situation called?

Answers

Answer:

this is a transform plate boundary (AKA- transform fault)

hope this helps :)

what is the meaning of thawing​

Answers

Answer:

it is when something unfreezes usually

Explanation:

like ice, if you leave it out over time it turns into liquid or meat if it's frozen you leave it out to unfreeze

Other Questions
Please help! Picture below...Also give an explanation so i can do it on my own:) Reescribe estas oraciones con los signos de puntuacin necesarios.1. Entr la mir sin decir nada y se fue por donde haba venido2. Pepito el hijo de mi vecina es amable estudioso y muy educado3. Marcela tiene dos profesiones es abogada de da y camarera de noche4. Visitamos varias ciudades de la costa mediterrnea Alicante Valencia Tarragona y Barcelona5. Andrs progres mucho en sus clases este ao aunque al final de curso perdi inters en algunas materias6. Estudi mucho para el examen sin embargo no logr aprobar la materia Which graph shows exponential growth?543. 21254 -3 -2 -11 2 3 4 5 X-2-3-4-5ly I what is 2.04 + 0.07 as a answer given -3nsquared -n +14 find the first four terms of the sequence 3 3/4 5 5/8write in simplest form. Check by multiplying.pls teach me how to answer it. I'll give brainliesnt if correct. Some German citizens objected to the violence of Kristallnacht.TrueFalse You are shopping for school supplies. You want to buy 8 notebooks for $1.50 each. Show how you can use the distributive property to find the total cost of the notebooks mentally.8x $150=8(1+ )=8(1)+8( )=8+ ( ) =$ ( ) In most states insurance companies O a higher standard of care of first party Clemets then they do third party Clemets because Q: What is "popular sovereignty"?Select one:O a. The governors from each state would cast ballots todetermine if a territory would become a free or slave state.O b. Each state would determine for itself if it was to become afree or slave state.O c.Citizens from the North and South would vote to decide if aterritory or state would become free or slave.O d. Each of these answers is correct A store owner sold 4 paint brushes for $12.00 and 8 pens for $3 20. What is the difference between the unit price of a paint brush and the unit price of a pen? I need help on this guys how do organisms use carbon based molecules and make water? what property does have to make it more suitable for water pipes than metal pipes? which one is the verb 5.they have lefted weight too . 3. SELECT ALL THAT APPLY: Which of these are potential signs for aggressivebehavior?Amanda was fired from a previous job for slapping a Coworker she wasdating.Mike tends to avoid people during lunch and was once heard makingviolent threats under his breath.Sherly often expresses that she is depressed and wishes at times that shewas dead.Candice tends to take walks alone at lunchtime.Maurice has started fighting with the coworkers she thinks are likely to bepromoted before her. UUUUU HAVEE E E E NNOOOOOOOO I DEAAAAAAAA I NEEEEDDDD HELLPPPPPP PLSSSSSSS!!!!The fossils that scientists find and study today formed thousands to millions of years ago. But, you can simulate the process of fossilization. Follow these steps to model a fossil:Line the inside of the plastic container with plastic wrap.Let the ends of the plastic wrap hang out of the container. The overhanging ends will allow you to more easily lift out your formation when its complete.Pour four inches of water into the container. Use a ruler to measure the correct depth.After adding the water, add two inches of sand.Spread the twigs and leaves in a thin layer on the top of the sand.Stay safe! Use gloves when handling the leaves and when checking the inside of your model during the weeks to come. Wash your hands and gloves when you are done.Part AAfter assembling the materials, record your observations. Describe what the setup looks like and the color of the leaves and twigs. Predict what changes will take place over the next few weeks. openstax Michael Bronner made a killing in the direct marketing business as the cofounder and CEO of Bronner Slosberg Humphrey, a wildly successful direct-marketing firm. His newest venture, Upromise Inc., enlists some of America's largest corporations to help families pay for college and is extremely successful. The 40-year-old Bronner will more than likely start at least one more new company before he retires because Bonner is a(n): Group of answer choices need a lil help please Compare and contrast. What do poems and stories have in common