The source of a sound moves away from the listener. Listener has the impression that the source is ________ in pitch and the frequency has_______.A.) lower. Increased

B.) lower, decreased

C.) higher, decreased

D.) higher, increased
The source of a sound moves away from the listener. - 1

Answers

Answer 1
Answer:

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.

To know more about the doppler effect, refer to the following link:

brainly.com/question/1330077

Answer 2
Answer: It’s c because the height helps apt with already

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Benthic organisms may be foundA swimming at the surface of a body of water
B living on the bottom of a body of water
C swimming in deep water
D swimming near deep water vents

Answers

Benthic Organisms may be found B.) LIVING ON THE BOTTOM OF A BODY OF WATER.

Benthic organisms are called Benthos. They live in and on the ocean floor. Examples of these organisms are worms, clams, lobsters, crabs, and sponges.

Benthos are classified as filter feeders or deposit feeders.

What steps should you take when the results of an experiment do NOT support your hypothesis?a: Consider the experiment a failure.

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.

Answers

D: Learn from results, and develop a new hytpothesis

Approximately how many species become extinct on earth each day

Answers

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.

After complex organic molecules have been absorbed in the small intestine, what materials are left behind?

Answers

The answer is water and cellulose.

Some parts of the food cannot be absorbed, so they left behind in the guts so they can later be excreted. Humans cannot digest cellulose because of the lack of some symbiotic bacteria that are able to digest it (such as cows have). Water is later resorbed in the large intestine, so it will pass excretory system (kidneys and associated tissues) before excreted. Therefore, cellulose and water will not be absorbed in the small intestine.

Malaria is one of the most common parasitic diseases in the world. It is caused by a protist from the genus Plasmodium and is carried by mosquitoes. When a mosquito carrying this protist punctures a human's skin, it releases sporozoite into the human. The effects on the human's internal environment are shown below.How does malaria affect the internal environment of the human body?

A. It causes the reproductive system to stop functioning.
B. It causes the liver to stop functioning.
C. It destroys red blood cells.

Answers

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.

Hormones are chemical secreted and regulate by the endocrine system. TRUE or FALSE.

Answers

The statement 'Hormones are chemical secreted and regulate by the endocrine system.' is indeed TRUE. The endocrine system is responsible for secreting bodily juices that would excite or inhibit the sympathetic and/or parasympathetic systems in the body.

true=Hormones are chemicals secreted and regulated by the endocrine system.