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sveta [45]
3 years ago
12

Jessica: Pitch is how high or low a sound is. The pitch depends on vibrations. High pitch sounds have low amounts of vibrations

Biology
1 answer:
alina1380 [7]3 years ago
7 0

Answer: Rachel

Explanation:

Pitch indeed refers to the highness of lowness of a sound. We are able to sense pitch based on the frequency of the sound wave with a higher frequency (more vibrations) having a higher pitch and a lower frequency having a lower pitch.

This is why lighter strings on guitars produce a higher pitch because when struck, they vibrate more as opposed to heavier strings. Rachel is therefore correct.

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Raynaud's phenomenon is characterized by _____________, while thromboangiitis obliterans (buerger's disease) is characterized by
kodGreya [7K]

Raynaud's phenomenon refers to an ailment featured by blood vessel unusuality resulting due to overactivity of the smooth muscle in the wall of arteries, causing spasms (vasospasms with constriction) of the small vessels, which supply blood to the legs, arms, feet, and hands, and sometimes the nose and ears.

Thromboangiitis obliterans, also known as Buerger's disease and vasculitis, is characterized by thrombosis and inflammation of the small and medium arteries of the feet and legs that recurs and advances in phases.

7 0
3 years ago
Different ratios occur in crosses with single gene pairs or two gene pairs. What types of ratios are likely to occur in crosses
likoan [24]

Answer:

Genotype ratio: 1, 1:1, 1:2:1

Phenotype ratio: 1, 3:1

Explanation:

Single gene pair cross is also known as monohybrid cross. This means that only one gene usually with two alleles is observed and it express one trait.

For example, if we name the gene for a certain trait with A, the possible genotypes are AA (dominant homozygous), aa (recessive homozygous) and Aa (heterozygous). Possible crosses are:

P: AA  x  AA

F1 : all of them are AA

The same is with aa x aa (all of the offspring are with aa genotype)

P: AA  x  Aa

F1: AA Aa AA Aa  (genotype ratio 1:1) (phenotype ratio 3:1)

The same genotype ratio is  in aa x Aa (offspring will have aa Aa aa Aa-(genotype ratio 1:1) (phenotype ratio 1:1)

P: Aa x Aa

F1: AA Aa Aa aa (genotype ratio 1:2:1) (phenotype ratio 3:1)

P: AA x aa

F1: Aa Aa Aa Aa (1)

5 0
3 years ago
Determine how to make positive and negative ions. Based on your exploration which subatomic particle is positive? Which subatomi
Katena32 [7]

Answer:

Atoms are electrically neutral as a result of having an equal amount of positive (due to the protons) and negative (due to the electrons) charges on it.

An ion generally is an electrically unbalanced atom (i.e an atom with a net charge on it)

A negative ion called an anion is produced when an atom gains an extra electron from a neighboring atom, giving it an extra negative charge. This can be produced by ionization with a radioactive radiation or simply by dissolution.

A positive ion is called a cation and it is produced when an atom loses electron to a neighboring atom. The loss of this electron causes the positive charges to outweigh the negative charges in the atom. Cations can be produced by radioactive radiation ionization of an atom or by simple dissolution.

The subatomic particle that is negative is the 'electron'.

6 0
3 years ago
A certain plant has a color that can range from green to yellow. Some plants are very green, and some are very yellow, but most
nataly862011 [7]
Because there are not strictly green and yellow plants, this means that the color can be affected by multiple genes. If it was only affected by one gene then you would see only the two groups for the color, green and yellow. The answer is D
<span>There are several genes that control the color. </span>
5 0
3 years ago
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What element do all organic compounds contain?<br> Nitrogen<br> Oxygen<br> Carbon<br> Hydrogen
svlad2 [7]
The answer would be Carbon
7 0
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