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
svlad2 [7]
3 years ago
5

You are standing at position X. Click on the diagram that shows your position when you perceive a sound at the same frequency as

actually being produced by the siren.
Biology
1 answer:
Zarrin [17]3 years ago
5 0
This question related to the Doppler effect, which states that the incident frequency of waves from a moving source is different from the actual frequency. The point where the actual frequency is observed is when the source is right next to the observer.
You might be interested in
What does "post-mortem tampering" mean?<br> THANK YOU!!!! :)
laila [671]
Post-Mortem tampering is the examining the body after death to find out when the death occurred. It is also needed to determine the cause.
4 0
3 years ago
If a blue eyed mother with a normal vision has a brown eyed color blind son and a blue eyed colored blind daughter what are the
Rina8888 [55]

Answer: mother: XX^aa, father: X^YAa, son: X^YAa, daughter: X^X^aa.

Explanation:

Color blindness is a genetic disorder that affects the ability to distinguish colors. It is hereditary and is transmitted by an X-linked recessive allele. If a male inherits an X chromosome with the altered allele he will be color blind. In contrast, females, who have two X chromosomes, will only be colorblind if both of their X chromosomes have the altered allele. This is because <u>males have one X chromosome and one Y chromosome, while females have two X chromosomes</u>.  

If the woman has normal vision, that means she cannot have both chromosomes affected. She can only have one affected chromosome (be a carrier) or none at all. Also, if she has blue eyes, which is a recessive trait, then both alleles are recessive. But the eye color is not on the X chromosome. For example, her eye color genotype can only be aa, because if she had at least one dominant allele she would have brown eye color. As for the other trait, she can be XX^, with X^ being an affected (carrier) allele or XX, i.e. both normal. So in summary, her genotype can be XXaa or XX^aa  

If she has a brown-eyed male child who is also colour blind, he has inherited the allele for colour blindness from his mother, since the father does not pass on an X chromosome to the male children, only the Y. With this we can now rule out the mother's XXaa genotype since she had to have passed on her affected X^ chromosome. Then the genotype of the mother is XX^aa. And since her mother can only pass on one allele to (recessive) because she does not have allele A, the dominant that determines her brown eye color can only come from the father. So the genotype of this son is X^YAa. The female daughter has color blindness and blue eyes. So she had to inherit the affected X^ chromosome from the mother (which we already know she has) and an affected X^ chromosome from the father, because the daughter needs to inherit both affected X^ chromosomes to develop the disease. And if she also has blue eyes, she had to have inherited a recessive allele from the mother and another from the father. So with this information we can say that the father's genotype can only be X^YAa. Because the father must have both A and A alleles of the same eye color, because he passed the dominant one to the son and the recessive one to the daughter. At last, the genotype of the daughter is X^X^aa.

8 0
4 years ago
Need help with this check smart people answer this fast
DENIUS [597]

Answer:

her arms are puffy red and swollen

Explanation:

These are physical signs (symptoms) that show that the girl may have an allergic reaction. Hope this helps

4 0
3 years ago
How does the temperature affect enzyme function? use evidence from your data to support your answer?
ololo11 [35]
If the temperature is too high, it can alter the structure of the enzyme and make it unable to bind to the substrate. But, if the temperature is too low the chance for the enzyme to collide with the substrate will be lower too. The enzyme works best in the highest temperature before its structure changed.
The data from the experiment should look like a bell. There is an optimal temperature for the enzyme and increasing/decreasing from that temperature will result in reduced reaction speed.
5 0
3 years ago
Read 2 more answers
Gloria does a lot of weight training between soccer games. as she strengthens her muscles, she is able to run harder and faster
GarryVolchara [31]
Synapse plasticity

The ability of a given synapse to strengthen or weaken over time is known as synapse plasticity. The strengthening or weakening is in direct relation to the amount and way the synapse is used. The more frequently and vigorously a synapse is involved in activities, the more it will strengthen, just as in the case of muscles. This mechanism is important in learning and also lays the foundation of memory in the brain.
8 0
3 years ago
Other questions:
  • Phospholipids assemble spontaneously into bilayers driven by the attraction of their "tail" portions to each other and of their
    11·1 answer
  • The Northeast’s rocky and jagged shoreline provides many _____.
    14·1 answer
  • Base excision repair corrects DNA by A. removing a double-stranded fragment of damaged DNA. B. detecting, removing, and replacin
    11·1 answer
  • The following statement is a(n) _____. What do customers feel is a fair price for the new product?
    13·1 answer
  • Plant cells perform photosynthesis, which occurs in the
    11·1 answer
  • Which of these is the most important cause of adult onset epilepsy?
    14·1 answer
  • Why does sexual reproduction result in more genetic variation in a species than asexual reproduction?
    15·1 answer
  • An experiment was designed to test the effect of ultraviolet light on the growth of mold spores. A sample of mold spores was div
    11·1 answer
  • What is the journey of oxygen through our lungs?
    14·1 answer
  • Energy Pyramids represent the food chain energy and population sizes. Which statement is NOT true.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!