Answer:auditory tube
Explanation
The structure that regulates air pressure between the external atmosphere and the middle ear cavity is known as the Eustachian tube.
What is the structure of Ear?The ear is a type of organ of hearing and balance which consists of a cavity in the skull structure lined with soft tissue. It surrounds three distinct spaces filled with air or fluid i.e. the outer, middle, and inner ear. These specialized spaces host both the sound transmission apparatus and the sensory apparatus.
Types of bones present in the ear are
1. Hammer shaped bone known as malleus which is attached to the eardrum.
2. Anvil shaped bone known as incus present in the middle of the chain of bones.
3. Stirrup shaped bone known as stapes is attached to the membrane-covered opening which connects the middle ear with the inner ear (oval window).
The cavity of the middle ear is a narrow air-filled space which is a slight constriction divides it into an upper and a lower chamber known as tympanic cavity proper below and the epitympanum above. The main function of the Eustachian tube is to equalize the air pressure between the environment and the middle ear.
Thus, the structure that regulates air pressure between the external atmosphere and the middle ear cavity is known as the Eustachian tube.
Learn more about Ear, here:
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Indicater I need the meaning
Answer:
indicator can mean two different things,
1. a thing, especially a trend or fact, that indicates the state or level of something.
2. a gauge or meter of a specified kind.
Hope this heled!
The cuticle which covers crustacean bodies is composed of
Salamander and Snake difference between
Answer:
https://wikidiff.com/salamander/snake
https://www.burkemuseum.org/collections-and-research/biology/herpetology/all-about-amphibians/what-are-salamanders
Explanation:
According to WikiDiff "snake and salamander, are that a snake is a legless reptile of the sub-order serpents with a long, thin body and a fork-shaped tongue while salamander is a long, slender, chiefly terrestrial amphibian of the order caudata, resembling a lizard or a newt." moreover "Salamanders are a type of amphibian; they have moist skin and are usually found in damp habitats near or in water. Salamanders are closer related to frogs despite how different frogs and salamanders look. Lizards are a type of reptile; they have dry skin with scales and are purely terrestrial (burkemuseum, 2021).
9. Which substance is cut by
restriction enzymes?
A. DNA
B. proteins
C. amino acids
D. chromosomes
I need help with dis plz the one dat says during
Answer:
cytokinesis
Explanation:
It’s the process that separates the parent cell into two indistinguishable daughter cells
in metaphase what is missing from the cells and what happens to the chromosomes?
how do the ranges for the marine bird and sea turtle species species compared
Answer: Varies
Explanation:
It's based on there being many different types.
Question 1) Describe what is meant when water is called a polar molecule? ( Will Mark Brainliest).
what is the right hotspot please help
Which brain region is believed to play a critical role in OCD?
anterior cortex
prefrontal cortex
orbitofrontal cortex
cingulate cortex
The diagram below shows a certain method of grazing animals
Answer:
In agriculture, rotational grazing, as opposed to continuous grazing, describes many systems of pasturing, whereby livestock are moved to portions of the pasture, called paddocks, while the other portions rest.
Explanation:
hehe ....
What's the scientific name of a leopard?
Answer:
Panthera pardus
Explanation:
leopard, (Panthera pardus), , also called panther, large cat closely related to the lion, tiger, and jaguar. (credit to brititanica articles)
9. How are humans changing the soundtrack to the oceans?
Answer:
human-driven noise
Explanation:
The international team of researchers found human-driven noise – including vessel noise, coastal development, exploration, naval operations, dredging, pile driving, and deep-sea mining – is changing the natural soundtrack, and further disrupting the behaviour, reproduction and physiology of marine life.
In Figure 7-2, which picture shows ice wedging: A, B, or C?
Answer:
In Figure 7-2, which picture shows ice wedging: A, B, or C?
The picture that shows ice wedging is A.
Explanation:
I did the test and got it right with the answer above.
One of the primary roles of the reproductive organs is the production of which of the following kinds of specialized cells?
gamete cells
nervous cells
epithelial cells
Helper T Cells
Answer:
gamete cells is the correct answer
Tornado Effects on the Land
Answer:
They have a small effect
Explanation:
Because when you consider the size of the earth, tornadoes have a small effect on earth, that's your answer?
Answer:
Tornado Effects on the Land-well tornadoes strike are greatly impacted. Trees and plants can be uprooted, and diseases in the soil are spread.
Explanation:
DEADLY!!
What happens to the tides if the earth spinner fast??
Answer:
it would be a disaster
Explanation:
The centrifugal force would pull hundreds of feet of water toward the Earth's waistline.
Answer:
If the Earth were to spin faster, the tides would change because the fast speeds would increase stress; making tighter circles of convection. This would cause more natural disasters like hurricanes, cyclones, and tsunamis.
Explanation:
Hope this helps! BH
Which of the following best explains the strength of collagen fibers?
I'm really sorry but you didn't provide any options...
Collagen fiber is the fiber in the extracellular matrix of connective tissues characterized by being elongated and made up of collagen glycoproteins. It is typically arranged in branching bundles of indefinite length. It is a strong insoluble fiber. It occurs in the skin, tendon, ligaments, bone, and cartilage.
What is the most likely explanation for
the DNA found in mitochondria?
Answer:
Origin. Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from the circular genomes of bacteria engulfed by the early ancestors of today's eukaryotic cells.
Explanation:
What best describes main component of carbohydrates
Answer:
All carbohydrates, including sugar, therefore contain the same three elements: carbon, hydrogen, and oxygen. Different arrangements of these elements form single units to make different types of carbohydrates.
Name the organ that helps a turtle to swim in water?
Answer:
Turtles utilize all four of their legs, extending them to propel themselves through the water.
Explanation:
Irradiated mice given a stimulatory antigen fail to mount an adaptive immune response. A robust response can be restored by:
Answer:
A bone marrow transplant (BMT)
Explanation:
An irradiated mouse would have immune hypocellularity or acellularity. A BMT would replenish its immune system to mount a robust immune response.
What key environmental factors determine the location of terrestrial ecosystems?
Answer: Temperature and rainfall
Explanation:
The process of converting food so that it can be absorbed into the blood and used by the blood vessels
A. Peristalsis
B. Bowel Elimination
C. Constipation
D. Digestion
Answer:
The answer would be digestion
Explanation:
When food is digested, it's broken down into smaller pieces so its can convert into energy for our body.
hope this helps :3
Cells of the nervous system which supports the neurons by producing myelin sheaths and
attaching neurons to blood vessels are called:
Answer:
Schwann cells :)
PLEASE HELP!!!!!! How many carbon dioxide (CO2) molecules are needed so there are enough Carbon atoms to make a glucose molecule?
Answer:
ok I know this is late and you probably don't need me anymore but the answer is 6
Explanation:
( love the pfp)
Proszeee o poommoooc
Answer:
Explanation: Proszeee o poommoooc
What are the unique properties of carbon
carbon have high catination property means self linking property
Reactions occur within the sun to transform _____ energy into _______ energy.
Answer:
Chemical and light and thermal energy.
Explanation:
Reactions occur within the sun to transform chemical energy into light and thermal energy.
In the Sun, chemical energy transforms into light and thermal energy. Plants transform the Sun's light energy into chemical energy during the process of photosynthesis.
Hope this helps :)
Answer:
chemical and thermal energy
What does the cell nucleus contain?
cytoplasm
vacuoles
chromosomes
chloroplastsWhat does the cell nucleus contain?
cytoplasm
vacuoles
chromosomes
chloroplasts
A nucleus cell contains chromosomes among other things.
