1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aniked [119]
3 years ago
5

The doppler effect is a change in the observed frequency if there is relative motion between _________.

Biology
1 answer:
alexdok [17]3 years ago
6 0
If you mean classic doppler effect, the C would be correct.
You might be interested in
The diagram shows genetic structures.
san4es73 [151]

Answer:

you have to put the actual diagram so others can actually answer ur question

Explanation:

yes

3 0
4 years ago
Read 2 more answers
A client with heart disease has the left ventricular ejection fraction measured. What is the normal left ventricular ejection wh
sweet-ann [11.9K]

Answer:

Normal left ventricle ejection fraction ranges from 55% to 70%

Explanation:

Ejection fraction depicts that with each heart beat, how much amount of blood is pumped by the left ventricle with each contraction as left ventricle is called as the main pumping chamber.

The percentage below EF value is the sign of heart failure.

The percentage of Normal Left Ventricle ejaculation fraction (LVEF) is 55% to 70% and if the value goes down, then it can create hear failure.

If the value is between 40% to 54%, that means less blood is ejaculated by Left ventricle as the amount of availability of blood is less.

If the percentage of EF value is below 35% that will determine the great risk of life threat for irregular heart beat.

6 0
3 years ago
How does radiometric dating help scientists pinpoint the age of a fossil?
cestrela7 [59]

C. In radiometric dating, scientists place samples of a fossil in certain liquids until the samples dissolve. The rate at which they dissolve indicates the age of the fossil.


6 0
3 years ago
Read 2 more answers
in a plant algae, fungi, and most bacteria cells, there is a rigid layer that surrounds the cell membrane and gives protection,
Anon25 [30]
It is called the cell wall. It provides rigidity to the cell.
4 0
3 years ago
____ is the movement of solvent through a semipermeable membrane, from a region of low solute concentration to a region of high
neonofarm [45]

Answer:

Osmosis

Explanation:

Osmosis is a the movement of solvent, water, across a membrane from an area where there is low solute concentration to an area of high solute concentration.

Please note that a solute concentration simply refers to the quantity of solute that have been able to dissolve in a solution or solvent.

Let me add that OSMOSIS is a type of DIFFUSION. This mostly demonstrated in a salt-water solution.

A common Example of osmotic phenomenal is:

Soaking bread in tea, soak a piece of foam in water etc.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Why are six carbon dioxide molecules required to make one glucose molecule?
    8·1 answer
  • Discuss how a specific genetically modified organism might provide a benefit for humans and at the same time pose a threat to a
    13·1 answer
  • What type of acid is currently of principal concern when dealing with acid rain?
    5·1 answer
  • Which tRNA anticodon(s) could decode the mRNA codon CAG (recall that codons are always written in the 5'—>3' direction and an
    7·1 answer
  • Can someone help me with this please
    7·1 answer
  • A star is formed with all of the fuel that it will never use.<br><br> True <br> or<br> False
    10·1 answer
  • Why are ecological relationships important?<br> Answer
    6·1 answer
  • What are the three supporting tissues in plant?
    12·2 answers
  • Which statement best explains the relationship between cellular respiration and photosynthesis?
    9·2 answers
  • Choose the CORRECT statement(s) concerning water.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!