B. vibrate with the frequency of the received sound.
C. amplify the received sound.
D. carry the sound energy to the brain.
The middle ear's eardrum vibrates at the same frequency as the sound being heard, hence option B is correct.
Many species' ears serve as their sensory organs and as their hearing organs. Its structure may be broken down into three main sections: The outside ear, the Middle ear, and the Inner ear.
Pinna and ear canal make up the outer ear. Skin covers the hard cartilage that makes up the pinna. The pinna's primary job is to collect sounds and direct them into the ear canal. The middle ear may be reached through the eardrum.
The eardrum in the middle ear is what divides it from the outer ear. The eardrum vibrates when sound waves strike it at a specific frequency.
Therefore, the eardrum in the middle ear vibrates with the frequency of the received sound.
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The function of the eardrum in the middle ear is to vibrate with the frequency of the received sound.
Further Explanation:
Ear is the sensory organ of many organisms which performs the function of hearing.
Structurally it can be divided into three basic parts:
1. Outer ear
2. Middle ear
3. Inner ear
Outer ear consist of pinna and ear canal. Pinna is made up of tough cartilage which is covered by skin. The main function of the pinna is to gather sounds and to move them to the ear canal. Eardrum serves as the pathway that leads to the middle ear.
Middle ear consists of eardrum that separates them from the outer ear. When sound waves hits the eardrum, it vibrates with the frequency of the received sound.
The inner ear changes the vibrations coming from the middle ear to the nerve signals. The inner ear consist of cochlear and semicircular canal.
The cochlea changes the vibrational signal into nerve signals that travels to the brain through the auditory nerve. The function of semicircular canal is to maintain the body balance.
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Answer Details:
Grade: Middle school
Subject: Biology
Chapter: Sensory organs
Keywords:
Sensory organ, ear drum, outer ear, inner ear, middle ear, ear canal, pinna, nerve signal, cochlea, semicircular canal, brain, ear, auditory nerve.
Answer:
It is very murky and difficult to see as sunlight doesn’t get very far down. There are also some trenches which are twice as deep – over 12 kilometres down.
Explanation:
cellulose.
glycogen.
wax.
lipids.
Answer:
Animals, including humans, store glucose in the form of glycogen.(option 2)
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Animals, specifically humans, store glucose in the form of glycogen. Glycogen serves as an energy storage molecule which can be broken down into glucose when needed. Cellulose, wax, and lipids have different roles in the organism.
Animals, including humans, store glucose in the form of glycogen. Glycogen is a polysaccharide, or a complex carbohydrate, that our bodies use for energy storage. It is stored primarily in the liver and muscle cells. When our bodies need a quick boost of energy, glycogen is broken down into glucose molecules that can be utilized by the cells. It's unlike cellulose which is a structural component for plants, whereas wax and lipids play a different role in the organism.
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C) active transport
i just took the test
indicate a common ancestor exists between two organisms
are features which organisms still have but no longer use
develop when a mutation occurs in the DNA of an organism
Answer is result from evolution in a similar environment
The analogous structures are the various structures in different species having the similar in function because face similar environmental pressure, but have different in their origin. These structures evolved separately. Thus, they do not share common ancestor. For example are wings of birds and wings of insects, fins of fish and flippers of whales. Analogous structure supports convergent evolution.