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Dmitry [639]
3 years ago
8

When an object moves relative to an observer, the wavelength of

Biology
1 answer:
chubhunter [2.5K]3 years ago
8 0

Answer:

a) Its called Doppler shift effect

b) It gets compressed

c) It gets stretched

d) The pitch of a wailing ambulance is high as it approaches you and gets lower as it moves away from you

Explanation:

It is observable even in space. The galaxies that are moving away from us appear in the red-shift while galaxies that are moving towards us appear in the blue shift.  

To begin with, remember that the blue wavelength of light is of a shorter wavelength while the red light is of a longer wavelength. An every day scenario of Doppler shift is that of a wailing ambulance approaching you then going past you. As the ambulance approaches you, the pitch of its wailing is high but when it passes you and moves away from you the pitch gets lower.

This is because of the changes in the relative wavelength of the wave. As the object moves towards you, the waves tend to be ‘compressed’, relative to your position, into a slightly smaller wavelength. As the object moves away, the wave tends to be stretched, relative to your position, hence the wave acquires a longer wavelength.

Learn More:

brainly.com/question/10750853

brainly.com/question/502909

#LearnWithBrainly

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r-ruslan [8.4K]

The light red layer between the white lumen and blue lamina propria consist of epithelium cells.

<h3>What is a lamina propria?</h3>

A lamina propria is a type of connective tissue that is present and found  under the thin layer of tissues covering a mucous membrane.

<h3 /><h3>Characteristics of the lamina propria</h3>
  • It is a very large layer of connective tissue
  • It divides the innermost layer from a layer of smooth muscle tissue.
  • it is a light red layer barrier located between the white lumen and blue lamina.
  • It is made up of epithelium cells.
  • It is also found in the respiratory tract, the Gastrointestinal tract, and the urogenital tract.

Thus, the light red layer between the white lumen and blue lamina propria consist of epithelium cells.

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4 0
2 years ago
Why is it so important to control the variables
QveST [7]

Answer: It is important to control the variables so the evidence from the experiment are as accurate as possible.

5 0
3 years ago
What type of plate boundary did subduction occur? Convergent boundary, divergent boundary, transform boundary
charle [14.2K]

Answer:

Subduction is the submerging of one plate under another hence can only occur in convergent boundaries where plates are colliding head on with each other.

Explanation:

Divergent boundary- plates moving away from each other

Transform boundary- plates 'sliding' across each other

5 0
3 years ago
Is it possible for plant breeders to develop a true-breeding pink-flowered snapdragon?
abruzzese [7]

Answer:

No.

Explanation:

Pink flower colour in snapdragon is as a result of incomplete dominance. The pink flower colour has no allele in nature. Instead, the pink colour results from incomplete dominance of the allele that codes for red flower colour over the allele that codes for the white flower colour.

Assuming that the allele for red flower colour in the plant is R and the allele for white flower colour is r, true breeding red and white flower colour plants will have the genotype RR and rr respectively. In heterozygote state (Rr), the phenotype is usually pink, showing that the R allele has incomplete dominance over the r allele.

<em>Hence, there is no way for plant breeders to develop a true-breeding pink-flowered snapdragon. without some genetic manipulations/mutation.</em>

6 0
3 years ago
Organic compounds ____________ (are/are not) only generated by living things.
goblinko [34]
ANSWER: Are.

Organic compounds are only generated by living things.

Hope this helps! :)
Have a lovely day! <3
4 0
3 years ago
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