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.
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9. Which substance is cut by
restriction enzymes?
A. DNA
B. proteins
C. amino acids
D. chromosomes
I need help with dis plz the question dat says what is the slope of the line passes through the pair
Answer:
D) -1/2
Explanation:
(5-8)/(9-3)
-3/6 = -1/2
someone to differentiate the 7 Baltimore classification from one another
Answer:
youbot girl or boy
In mitochondria cristae act as sites for what
Answer:
Explanation:
The tubular or sheet-like cristae membranes are the main site of oxidative phosphorylation, harboring the complexes of the respiratory chain and the F1Fo-ATP synthase [5], [6], [7], [8], [9]. Fig. 1. Mitochondrial contact site and cristae organizing system (MICOS) in yeast.
Which of the following is NOT an effect produced by the sympathetic nervous system?
A.) Increased GI motility
B.) Relaxation of the bronchioles
C.) Increase heart rate
D.) Pupil Dilation
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Examine the comparison between a eukaryotic cell and a prokaryotic cell. Which two lettered choices provide a comparison of structures that encode genetic information for the cells? A) A and D B) B and D C) C and D D) None of these choices, as prokaryotic cells do not contain DNA
I am almost certain it is A) a and d) but I need reassurance.
Answer: c & d
Explanation:
C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.
What are Prokaryotic and Eukaryotic cells?Prokaryotic cells are single-celled microorganisms known to be the earliest on earth. Prokaryotes include Bacteria and Archaea. The photosynthetic prokaryotes include cyanobacteria that perform photosynthesis. A prokaryotic cell consists of a single membrane and therefore, all the reactions occur within the cytoplasm which can be free-living or parasites.
Eukaryotic cells are defined as having a nucleus enclosed within a nuclear membrane and form large and complex organelles. Protozoa, fungi, plants and animals all contain eukaryotic cells which are classified under the kingdom Eukaryota.
Thus, C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.
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Kenyon knows that some of the star patterns he see at night can be seen from different places on earth only during certain time of the year. Which of the following explains why theses star patterns are not seen all year long from everywhere on Earth?
A) Earth’s revolution
B) Earth’s rotation
C) the sun’s revolution
D) the sun’s rotation
3)What are some examples of specialized cells
and what do they do?
4) Why is the specialization of cells in organisms
significant and important for homeostasis?
Answer:
3 Neurons are the specialized cells responsible for allowing all the basic body functions to take place correctly as all the necessary communication happens through them. Muscle cells or myocyte cells are specialized in making all movement possible. These cells have a cylindrical shape that allows them to contract.
Explanation:
4 Each cell must be able to perform as a part of a living organism. Cell specialization is required for cells to perform as a part of a whole living thing. Different cells do different jobs.
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DNA and RNA contain nucleotides that code for what?
A Carbonic Acids
B Amino Acids
C Hydrochloric Acids
D Lactic Acids
Answer:
your answer is definitely B: Amino Acids
Explanation:
Answer:
B
Explanation:
4. Which type of air holds more water vapor?
Cold Air
Frigid Air
Dry Air
Warm Air
Answer:
Warm Air
Explanation:
If you place yeast, sugar and water in a sealed bag and in the sun , what two things will be produced
Answer:
Explanation:
The purpose of any leavener is to produce the gas that makes bread rise. Yeast does this by feeding on the sugars in flour, and expelling carbon dioxide in the process.
While there are about 160 known species of yeast, Saccharomyces cerevisiae, commonly known as baker's yeast, is the one most often used in the kitchen. Yeast is tiny: Just one gram holds about 25 billion cells. That amount of fungi can churn out a significant amount of carbon dioxide, provided it has the simple sugars it uses as food. Fortunately, yeast can use its own enzymes to break down more complex sugars—like the granulated sugar in the activity below—into a form that it can consume.
Make a yeast-air balloon to get a better idea of what yeast can do.
Recipe Conversions
CAUTION
Kids, please don’t try this at home without the help of an adult.
Did You Know?
Yeast also produces alcohol as it feeds, which is why it is an important ingredient in making beer.
Did You Know?
In 1857, Louis Pasteur discovered that yeast is a living organism whose activity causes fermentation.
Cells are the basic structural, functional and biological unit of all known living organisms. Identify
the type of cell shown below.
a. prokaryotic
b. eukaryotic
c. bacterial
d animal
Answer: In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function. The name organelle comes from the idea that these structures are parts of cells, as organs are to the body, hence organelle, the suffix -elle being a diminutive
Am i the only one that don't see environment science every time i search for it
Answer:
me too
Explanation:
I don't find it as well
is broccoli a dicot or monocot?
Answer:
Broccoli is a dicot
Explanation:
I looked it up on the internet :)
Which brain region is believed to play a critical role in OCD?
anterior cortex
prefrontal cortex
orbitofrontal cortex
cingulate cortex
What happens if a cell is unable to divide by mitosis
Answer:
When this happens, sometimes the cell commits a special type death is called apoptosis. Apoptosis, otherwise known as programmed cell death, ensures that if mitosis goes wrong and cannot be fixed, the cell does not continue to divide, as this would lead to the production of mutant cells that might cause problems.
Explanation:
how do amphibians breathe on land and in water
Answer:
Most amphibians can breathe both through cutaneous respiration (through their skin) and buccal pumping - though some also retain gills as adults. Some aquatic salamanders (and all tadpoles) have gills and can breathe underwater thanks to them. The Mexican axolotl, for example, never loses its gills.
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:
The cuticle which covers crustacean bodies is composed of
I need help with dis one too plz!!!question 5
Explanation:
4) option D
5) option A
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Explain how damaged DNA in a stem cell could cause a large impact to an organism
DNA damage can affect normal cell replicative function and impact rates of apoptosis (programmed cell death, often referred to as 'cellular senescence'). Alternatively, damage to genetic material can result in impaired cellular function, cell loss, or the transformation of healthy cells to cancers.
please help!
- chlorophyll
-glucose
-ADP
-ATP
Answer:
ATP
Explanation:
Which statement describes a social benefit of the sustainable use of land?
Sustainable farming of land can provide food to support a large global population.
Shared land use will protect habitats and increase the biodiversity of ecosystems.
Cutting down more trees will provide materials to build more affordable housing.
Companies will increase profits by dumping waste on public land.
Answer:
It would be the first one
Explanation:
I am sure it would be this because when farming, you are not harming the environment or any other ecosystems in anyway. It would also supply food for a constant growing population. Let me know if this helps!
Sustainability is defined by the maintenance of the factors. Sustainable land farming can supply food to support global inhabitants. Thus, option A is correct.
What is sustainable land use?Sustainable land use is the practice of using and managing the land effectively by the fair use and distribution of environmental resources like land so that it can be secured for future use.
It involves the indiscriminate usage of land resources with no negative effects or consequences that have rather a positive impact on the environment.
The use of farming land in a sustainable manner can ensure the growth of agricultural food in efficient amounts so that it can support the need for food for the global population.
Therefore, option A. the farming of land to support global food demand is a social benefit of sustainable land use.
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An experienced short-order cook can remember each order called to her for only the short length of time it takes to begin to cook. After 30 seconds, she must refer to a written order slip. This is an example of the limited duration of___?
1) chunking memory
2) sensory storage
3) short-term memory (STM)
4) long-term memory (LTM)
An experienced short- order cook can remember each order called to her for only the short length of time. After 30 seconds, she must refer to a written slip.
This is an example of short- term memory(STM).
What is short-term memory (STM) ?
Short- term memory is the information that a person is currently knowing or aware of.
This information in STM can last from 30 seconds to six months.
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A scientist is looking at multiple specimens on wet mount slides. On two slides he sees bubbles forming. He decides to investigate the origin of the bubbles. At the end of his analysis, he concludes that all his slides were of animals and only the two with bubbles were not.
Answer all of the following questions below :
1. What visual you have evidence would he have to see on the microscope slides to support his claim?
2. What would be the source of the bubbles?
3. Explain how your answers to #1 and #2 would explain his findings.
What visual you have evidence would he have to see on the microscope slides to support his claim: moving components
What would be the source of the bubbles? oxygen creation
I need help with dis plz!!!the one dat starts off with when
Answer:
I think it's d <3
Explanation:
What do all living things have in common?
All have cells with a nucleus.
All have a genetic code.
All are made of two or more cells.
All can perform photosynthesis.
Answer:
All are made up of two or more cells
2. The small molecules move into the?
Facilitated diffusion, like passive diffusion, involves the movement of molecules in the direction determined by their relative concentrations inside and outside of the cell. ... They then undergo conformational changes that allow the molecule to pass through the membrane and be released on the other side.
Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. The three main kinds of passive transport are diffusion (or simple diffusion), osmosis, and facilitated diffusion
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A disputed paternity case! Hermione’s new baby has a blood type of O. Her blood type is B and Ron Weasley is A. Harry Potter (blood type AB) insists he is the child’s father. CAN THIS BE TRUE???!
Answer:
No becuase one of the parents needs to have type O
Explanation:
No, this cant be true because in order for a child to have O blood type parents must have a recessive allele "[tex]i[/tex]".
What type of alleles are blood types?An allele is a particular form of genetic information that can be found in our DNA at a particular spot on a certain chromosome. This form of genetic information is known as an allele.
Codominant alleles in humans are responsible for determining blood types. There are three distinct alleles, and they are denoted by the letters IA, IB, and i. The IA and IB alleles both have co-dominant inheritance, but the i allele has a recessive inheritance pattern. Type A, type B, type AB, and type O are the four different human phenotypes that are possible for the blood group.
Therefore, in order for a child to have O blood type parents must have a recessive allele "[tex]i[/tex]"
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NEED HELP NOW PLEASE
5. Arrange the following levels of organization: Write numbers 1-8 only.
Compound of molecule
Atom
Organelle
Cell
Organism
Organ
Tissues
Organ system