Doppler Effect is defined as the change of frequency of a sound or light wave produced by a moving source and a stationary observer. The waves when they move towards the object compresses.
The correct answer is:
Option B. lower, decreased
The Dopplereffect can be explained as:
1. The listener will have the impression that the moving source is higher in the pitch as it moves away from the listener.
2. The frequency of the waves will be decreased because the time between the successive sound waves is lengthened or increased.
Therefore, the pitch will be lowered and the frequency will be decreased.
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B living on the bottom of a body of water
C swimming in deep water
D swimming near deep water vents
b: Assume you made a mistake, and the results mean nothing.
c: Publish the results of your experiment claiming the experiment proved the converse of your hypothesis.
d: Learn from results, use the new knowledge to improve your view of the situation, and possibly develop a new hypothesis.
D: Learn from results, and develop a new hytpothesis
Answer:
Approximately 2000 species become extinct on earth each day.
Explanation:
The extinction is defined by no presence of a particular species on anywhere on the earth. It is estimated that there are 150-200 species present in environment gets extinct every day. The every day extinction of species is in the range of 200 to 2000. The high extinction rate can cause severe negative impact on the environment. The process of extinction can cause ecological imbalance.
A. It causes the reproductive system to stop functioning.
B. It causes the liver to stop functioning.
C. It destroys red blood cells.
Answer:
C. it destroys red blood cells
Explanation:
When Plasmodium sporozoites enter the body, they infect the liver. New cells called merozoites emerge from the liver and infect red blood cells. The merozoites eventually burst from the red blood cells, destroying them and releasing toxins that cause various symptoms.
true=Hormones are chemicals secreted and regulated by the endocrine system.