The _______ is responsible for determining the frequency of vibration of the air column in the tube within a wind instrument. A. effective length of the tube B. type of reed used C. reed's frequency of vibration D. humidity of the air

Answers

Answer 1
The answer is A. effective length of the tube
In wind instrument, the effective length is not the actual length of the instrument but only the length that the finger holes manage to cover.
The more holes it managed to cover, the higher frequency of vibration it might able to produce, which lead to higher pitch of the instrument.
Answer 2
The answer is A.effective length of the tube

Related Questions

What can you conclude by comparing the left and right hydrographs, each of which depict the same amount of time?

Answers

Hydrography are gentle and sweet

The peak discharge is greater on the left, both graphs fail to depict a real deluge. A speedier occurrence, like a flash flood, is depicted in the right diagram.

What are left and right hydrographs?

Due to friction, stream velocity is highest in the middle of the stream, close to the surface, and is lowest along the stream bed and banks, The discharge rises fast and falls off gradually.

Stage and streamflow may be shown on a hydrograph graphic or even both. The visual display of water level data and forecasts on a single graphic is made possible by the use of hydrographs.

Therefore, read a hydrograph, choose a rough date, and follow a vertical line up to the point when it crosses the graph. You may get the stream discharge on that date by reading horizontally to the left.

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The energy for the polymerization of nucleotides comes from _____

Answers

I believe it comes from the groups of dNTPs. ( hydrolysis of phosphate )

For the pressure-volume study what experimental factors are assumed to be kept constant

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The behavior of gases is a function of pressure (P), volume (V), temperature (T), and the number of moles (n) of the gas. This is reflected by the simplest correlation for the gases which is the ideal gas law (PV=nRT with R as the universal gas constant)For the experimental results to reflect ONLY the effect of pressure and volume, the other factors that could affect the behavior of the gas, particularly the temperature and the number of moles of the gas, must be kept constant. 

Which scientist(s) suggested for the first time that the proportion of adenine and guanine differs from one species to another?

Answers

Watson and Crick created that

Erwin Chargaff, an Austrian-American biochemist, was the scientist who first observed that the proportion of adenine (A) and guanine (G) in DNA varies between species.

What is base pairing?

The specific pairing of the nitrogenous bases (adenine, thymine, guanine, and cytosine) that comprise the two complementary strands of DNA is referred to as base pairing.

The Austrian-American biochemist Erwin Chargaff was the first to notice that the proportion of adenine (A) and guanine (G) in DNA varies between species.

He published a paper in 1950 describing the base composition of DNA in various species, which became known as "Chargaff's rules."

He discovered that the amount of A in each species always equals the amount of T (thymine), and the amount of G always equals the amount of C (cytosine), but the proportions of A+T and G+C vary from species to species.

Thus, the scientist that suggested for the first time that the proportion of adenine and guanine differs from one species to another was Erwin Chargaff.

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Marvin is suffering from the early stages of alzheimer's disease. which component of his working memory is most likely to be affected?
a. all of these are equally affected
b. the phonological loop
c. the central executive
d. the visuospatial sketch pad

Answers

Correct answer:
"All of these are equally affected."

When in Alzheimer's disease, all of the working memory is in peril. In early stages of Alzheimer's disease, all of these functions start to have problems. Phonological loop is basically the capacity to memorise speech or information in it. Central executive is the ability to switch attention from one activity to another that is needing more attention. The visuospatial sketch pad is the ability to handle visual and spatial information being able to judge distances for example. All of these are part o the working memory and are affected from the early stages of Alzheimer's disease.

The main energy-coupling compound in biochemical reactions that allows thermodynamically unfavorable processes to become favorable is ________.

Answers

The main energy-coupling compound in biochemical reactions that allows thermodynamically unfavorable processes to become favorable is ATP, or Adenosine triphosphate. ATP hydrolysis has a large, negative, free-energy change, due to electrostatic repulsion, stabilization by extra resonance forms, stabilization by ionization, and stabilization by solvation.

What is a storage device for a plant embryo

Answers

Seed is a storage device for a plant embryo.
Seeds contain everything needed for a new plant to be born, just like human sperm and ovum are merged in order to create a human embryo. A seed acts in a similar manner, providing the future plant with everything it needs to be 'born.'
a seed is the storage device of a plant embryo

A program to reduce and control the population of sea lampreys was likely started in ?

Answers

Hey you!

I believe it started in the mid 1900s.

I Really Hope This Helps You, Good Luck With Your Studies! =)

insects may be preserved in the hardened sap of trees called

Answers

Amber, because in the Prehistoric times the insects and small dinosaurs fell into amber and became preserved in the hardened sap.
Amber. Insects and other prehistoric small animals were caught in the tree sap and the sap fossilized to perfectly preserve the creatures in a hard substance called amber. It is currently used in jewellery.

The number of individual hair strands on 1 square inch of scalp is called:

Answers

I believe it is called hair density

I hope this helps!

________ ions are produced within the parietal cells and transported across the apical membrane via an active transporter while, at the same time, ________ moves across the apical membrane through ion channels.

Answers

The answer is hydrogen and chloride. The hydrogen ions are created within the parietal cells and conveyed transversely the apical membrane via an active transporter while at the same time, chloride moves crossways the apical membrane through ion channels. In addition, hydrogen ion is the nucleus of a hydrogen atom disconnected from its supplementary electron. The hydrogen nucleus is completed up of a constituent part resonant a unit positive electric charge which is known as a proton. The protected hydrogen ion characterized by the symbol H + is hence normally used to signify a proton.

What is the definition of the word common in environmental science?
A. A worthless resource B. A shared resource C. A typical resource D. An unusual resource

Answers

The answer is definitely B.) A Shared Resource

Answer: The correct answer is -

B. A shared resource.

In environmental science, a resource can be described as substance/ material (such as food, water, light, nutrients) that are essential for the survival, growth, and reprodution of living organisms.

For instance, all plants share same resources that are light, nutrients (like nitrogen, phosphorous, sulfur, potassium, oxygen), and water for their proper growth and reproduction.

In other words, certain resources are being shared by many organisms.

Thus, option B) is the right answer.

Matthew decided he wanted to hike up Mount Everest. On his way to the top, it began to snow and the temperature dropped to -10°F. Matthew forgot to wear a heavy jacket so his body began to shiver beyond control. In this case, Matthew's body shivering is the ________ to a drop in temperature.

A. reflex
B. stimuli
C. response
D. environmental condition
ANSWER THIS A.S.A.P

Answers

A.) Reflex. ReflexInvoluntary, built-in response to a stimulus

The experiments that lead to new discoveries are peer-viewed by other scientists. Peer reviews help determine two things. Name one of them

Answers

One of the things that peer review helps to determine is CREDIBILITY.
Peer review refers to the act of evaluating scientific, academic or professional works by others who are experts in the same field.
The techniques use in peer reviewing ensure that standard and expected quality are maintained.

Brown eyes (b) are dominant over blue eyes (b) and straight tails (t) are dominant over curly tails (t) in opossums. a brown-eyed, straight-tailed opossum male was mated to a tester female. the offspring were: 3 brown eyes and straight tails 2 brown eyes and curly tails 4 blue eyes and straight tails 3 blue eyes and curly tails what was the genotype of the male?

Answers

When there is a tester mate it means that the genotype of that mate is known, most commonly that mate has all the recessive traits that are being studied so that we know that mate's genotype is homozygous recessive.
Therefore, in this case the tester female has probably blues eyes and curly tail, meaning that the only contributed combination of alleles from the tester mate is blue eyes and curly tail. As we can see by the results of the mating, the male would have to have all types of alleles. Because the male has a brown-eyed and straight-tailed phenotype it means that he has at least one allele that's for brown eyes and one that's for straight tail. Once the offspring includes all types of phenotypes, we can conclude that the male had also the recessive alleles for both characteristics. 

Many plants will grow from cuttings. The cutting develops a new root system and becomes a clone of the parent plant, but an independent new plant. This type of reproduction is called A) sexual. B) budding. Eliminate C) asexual. D)

Answers

My best guess would be "asexual" (press "thanks" if im right to let me know)
Many plants will grow from cuttings. The cutting develops a new root system and becomes a clone of the parent plant, but an independent new plant. This type of reproduction is called



asexual. D

The lymphatic vessels run from ________ to ________

Answers

The lymph vessel flows from the tissue to the lymph nodes, flow to the largest lymphatic vessel in the thorax called thoracic duct, then drain to the subclavian vein.
The lymphatic vessel is a thin tubular organ made of the endothelial cell. It has a valve like the vein to prevent backflow of lymph. Lymphatic vessel delivers the lymph through the body and has a role in the immune system. 

Answer:

The first thing I did was to be a part of the world and the other

What is another name for skeletal muscle? involuntary muscle connective muscle voluntary muscle interactive muscle reactive muscle?

Answers

it is a voluntary muscle3
Final answer:

Skeletal muscle, also known as voluntary muscle, is the type of muscle that we can consciously control. Unlike involuntary muscles, voluntary muscles respond to conscious signals from the brain.

Explanation:

The other name for skeletal muscle is voluntary muscle. This term arises from the control we have over these muscles - we can consciously decide to move them. Unlike involuntary muscles (like the heart), which operate without conscious control, voluntary muscles (like those in the arms and legs) respond to conscious signals from the brain. For example, if you decide to lift an object, your brain sends a signal to the specific voluntary muscles in your arm and hand, causing them to contract and facilitate the movement.

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After a fire in an isolated farmhouse, firefighters found several small propane tanks and other strong evidence of a recently abandoned "meth lab." if what the firefighters found was a "meth lab," we would say:

Answers

we would say whether meth generated from the meth lab caused the fire in the farm house. The methane gas when it comes out it reacts with oxygen and cause fire. It is highly possible that the fir in isolated farmhouse caused by meth.

Thylakoids are coin-shaped membrane-enclosed compartments inside the ________

Answers

Thylakoids are inside the chloroplast.

How is the formation of the spindle during mitosis and meiosis i different?

Answers

In mitosis spindle fibers from both centromsomes attach to each chromosome's centromere, in meiosis I the spindle fibers from only one centrosome attach to a chromosome's centromere. 

Based on samuel's alcohol consumption, which b vitamin, severe deficiencies of which are called wernicke-korsakoff syndrome, is he lacking?

Answers

The b vitamin that samuel is lacking is Thiamine. Due to Samuel's alcohol consumption, severe deficiencies of which are called wernicke-korsakoff sydrome he is lacking on b vitamin that called thiamine that can be pound on food and use as a dietary supplement.

Hemophilia is an x-linked recessive trait. in a family, the mother knows she is a carrier and the father does not have the disease. the family is expecting triplets. they are worried about having boys that would have 50% chance of being affected. what is the probability of having one or more than one boy? consider two scenarios: if the triplets are monozygotic and if the triples are trizygotic

Answers

The answer is  1/2 and 7/8

Which of these activities are ways people degrade commons? Select the two correct responses.
A. Farmers allow livestock to overgraze federal pastureland.
B. Rangers limit the number of visitors to a nature preserve.
C. Rangers allow native plants to grow unchecked in a park.
D. Hunters hunt a valued species to extinction.
E. Politicians protect the habitat of an endangered species.

Answers

The correct answer is option , A and D

Here, the word common refers to the “Earth” and “its precious resource”. If a farmer allows overgrazing of pastureland, the land gets exposed to extreme weather condition and thus easily get eroded which could even lead to desertification. Also when a hunter kills a valued species that is at the verge of extinction, the ecosystem gets disturbed as the connecting link gets extinct which also disturbs the food chains and stability of the natural food web.  

There are different kinds of agricultural activities. The activities that are ways people degrade commons are;

Farmers allow livestock to overgraze federal pastureland.

Hunters hunt a valued species to extinction.

What happens when one allow livestock to overgraze an area?

In course of overgrazing, animals are known to limit or reduce the plant leaf areas, and thus it lowers plants' ability to trap sunlight and grow new set of leaf material.

This brings about a reduction and so there is slows down of plant regrowth and this can lead to the death of the plant.

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The answer please.................

Answers

answer, is I don't know

Which of the 4 general gastric cell types are classified as enteroendocrine cells?

Answers

The answer is G cells. Of the 4 general gastric cell types, G cells are classified as enteroendocrine cells. G cells primarily secrete gastrin, and work with gastric chief cells and parietal cells in order to regulate the acid levels in the stomach. 

What is the difference between lipid measurement (cholesterol) and dm-4: lipid measurement?

Answers

The lipid Measurement between the DM-4 has a difference: Lipid Measurement are that the DM-4 Lipid Measurement reminder includes all patients with diabetes between 18 and 75 years old. So, the difference of both Lipid measurement and DM-4 is that the Lipid Measurement are that the DM-4 lipid measurement reminder includes all the patients who has a diabetes that ages between 18 to 75 years old.

The only group with an endoskeleton is
A) The vertebrates
B) the mollusks
C) arthropods
D) vertebrates

Answers

the only group with an endoskeleton is A or D because you put the same answer choice twice

Answer:

a and d

Explanation:

Antimicrobial x targets a specific protein in the cytoplasm of the bacterial cell, causing the bacteria to stop growing, but does not kill them. a few bacteria start to grow in the presence of antibiotic x. analysis of the bacteria that can now grow shows that they have changed the shape of the target for antimicrobial x. what conclusion can be made?

Answers

The answer to this question would be: Antimicrobial X is less effective against the new shape of its target.

In this question, the antimicrobial X targets a specific protein in the cytoplasm of the bacterial cell and the bacteria have changed the shape of the target for antimicrobial x. The changed shape of the antimicrobial X will cause it to stop working as it can bind to the specific protein in the bacteria cell anymore. 
Because some of the drug(that the shape changed) is losing its function, the effect of antimicrobial X will be reduced.

Final answer:

The bacteria that can grow in the presence of Antimicrobial X, despite its action, indicate the development of antimicrobial resistance through structural changes in the drug's target, highlighting evolutionary adaptation under selective pressure.

Explanation:

The conclusion that can be made from the scenario where Antimicrobial X targets a specific protein in the cytoplasm of the bacterial cell, causing the bacteria to stop growing but not killing them, and a few bacteria start to grow in presence of the antibiotic by changing the shape of the target, is that these bacteria have developed a form of antimicrobial resistance. This resistance occurs through a structural change in the target protein, which prevents the antimicrobial from binding effectively. Such a mutation allows these bacteria to survive and reproduce in the presence of the antimicrobial, a concept known as selective pressure. It is a clear example of how bacterial populations can evolve resistance to specific antibiotics or antimicrobials through genetic changes that alter drug targets.

Which is moved by transport proteins? please help
water

carbon dioxide

oxygen

calcium

Answers

it is either b. carbon dioxide or c. oxygen 

" Carbon dioxide (CO2) and oxygen (O2) are both molecules that can move across cell membranes through simple diffusion. When you breathe in oxygen, the red blood cells in your lungs have a low concentration of oxygen and a high concentration of carbon dioxide inside. "


Calcium is moved by transport proteins across cell membranes, while water, carbon dioxide, and oxygen can pass freely without such assistance.

Among water, carbon dioxide, oxygen, and calcium, calcium is the molecule that is moved by transport proteins across cell membranes. Water, carbon dioxide (CO2), and oxygen (O2) can move freely through cell membranes due to their small size and the nature of the lipid bilayer. However, calcium ions, which are charged particles, cannot easily pass through the plasma membrane without assistance. They require specific carrier proteins to facilitate their movement, often in a process that involves changes in the shape of the transport protein. This can be a passive process, as in facilitated diffusion, or an active process that requires energy, commonly in the form of ATP or an existing gradient of other ions or molecules.

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