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damaskus [11]
3 years ago
5

The part of a. Soundwave that we hear as loudness is

Biology
1 answer:
DedPeter [7]3 years ago
5 0

Answer:

Explanation:

For most humans, zero dB marks the threshold for perception of sound, although loudness ultimately depends on both amplitude and frequency. The human ear is most sensitive to sounds between 1000 and 5000 Hz. The amplitude of a soft whisper is approximately 30 dB.

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Hi, can someone help me with this question? Thank you!
Elenna [48]

Answer:

Can someone help me please Explanation:

Is this test the I going to have trace the path a red blood cell would follow starting in the right ventricle and back to the right ventricle included will be every structure ( heart chamber, valve, vessels ) that the red blood cell would pass trough???

6 0
3 years ago
After arousal by a sensory stimulus, consciousness can be maintained by positive feedback, because of activity in the
KIM [24]

Answer:

This question lacks options, options are:

A) cerebral cortex.

B) basal nuclei.

C) sensory pathways.

D) motor pathways.

E) All of the answers are correct.

The correct answer is E.

Explanation:

The cerebral cortex processes and filters its information before passing the most relevant aspects to other regions of the brain. Some of these brain regions, in turn, send information back to the cortex. These loops, known as 'feedback systems', are considered essential for the functioning of cortical networks and their adaptation to new sensory information. Neural circuits must first assess the importance of incoming sensory information and then refine how it is processed in the future. Positive feedback, triggered with the purpose of amplifying the response to the initial stimulus, can be compared to a chain reaction or a vicious circle. Few are the functions regulated by this mechanism; rather it is triggered in pathological situations. It is the system by means of which the organism very rarely regulates any of the bodily functions under normal conditions, making the initial stimulus to be maintained and even increased. This type of mechanism is predominantly present in pathological situations: Its constitutive elements are: stimulus, receptor, afferent pathway, integrating center, efferent pathway, effector and response. The response does not have the ability to satisfy the initial stimulus.

6 0
3 years ago
Fat is the most efficient molecule for long-term energy storage, even compared to carbohydrates, because __________.
saveliy_v [14]

Answer:

d.

Explanation:

Your body uses two types of molecules for storing energy, the carbohydrates are the main type and its used for short term storage, and for immediate use by the body. And the lipids or fats, are used for long term storage in the body, because they can store more energy in the same volume than a carbohydrate.

3 0
3 years ago
Which statement best describes how a catalyst can speed up a chemical reaction?
Doss [256]

Answer:

The catalyst decreases the activation energy needed

6 0
3 years ago
Dr. Alexander Winemann is a ____ist who specializes in organic chemistry.
Oksi-84 [34.3K]
He's actually a biologist who specializes in organic chemistry. But since that's not in the answer choices, i'd recommend putting Scientist or Dermatologist. 
5 0
3 years ago
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