Biology High School

The Doppler effect occurs when a source of waves and/or observer move relative to each other, resulting in the observer measuring a different frequency of the waves than the frequency that the source is emitting.

True
Or
False?

The Doppler Effect Occurs When A Source Of Waves And/or Observer Move Relative To Each Other, Resulting

Answers

Answer 1
I think it is true
Tell me if I am right or wrong

Related Questions

How are the phases of Venus different than the phase of our moon?

Answers

Answer:

Venus is an inferior planet. Because Venus is so close to the Earth and lies nearer to the Sun, it shows phases, similar to the way the Moon does. It also is closer to us near inferior conjunction (bigger) than at superior conjunction (smaller), and so its angular size changes as the distance between us varies.

Explanation:

Which lists metric units, in order, from smallest to largest?

kilogram, hectogram, decagram
decagram, decigram, centigram
milligram, centigram, decigram
decagram, hectogram, milligram

Answers

Answer:

milligrams, centigrams, decigrams, kilograms, decagram,hectogram

Explanation:

Answer:

milligram, centigram, decigram

Explanation:

Will award 100 poins :)))
Of the visible light spectrum, the rate of photosynthesis is greatest under?
A) red light
B) blue light
C) orange light

Answers

Answer:

A) red light

Explanation:

Blue light is absorbed not only by chlorophyll, but also by carotenoids, and some carotenoids are not in the chloroplasts; further, carotenes and xanthophylls make up the carotenoids. Carotenes do not transfer absorbed energy efficiently to chlorophyll, and thus some part of absorbed blue light is not going to photosynthesis. On the other hand, all of red light is absorbed by chlorophylls and used effectively.

The rate of photosynthesis is greatest under red light.

Red and blue light are both absorbed by the xanthophylls and carotenes. The absorption of blue light is higher than that of red light in the xanthophylls and carotenes.

However, red light is solely absorbed in the chlorophyll and not blue light. As such, the absorbed red light is utilized for photosynthesis directly.

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Label the steps for protein synthesis in order, beginning with the first step.


Once the protein is made, the gene for a particular trait is expressed.


mRNA joins the ribosome, and the anticodons from tRNA join mRNA to form a chain of amino acids.


RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.


A chain of amino acids is formed from peptide bonds, creating a protein.


mRNA is transported from the nucleus of the cell to the ribosomes of the cell.

Answers

Answer:

1: Step 5

2: Step 3

3: Step 1

4: Step 4

5: Step 2

Explanation:

Answer:

✔ step five

Once the protein is made, the gene for a particular trait is expressed.

✔ step three

mRNA joins the ribosome, and the anticodons from tRNA join mRNA to form  a chain of amino acids.

✔ step one

RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.

✔ step four

A chain of amino acids is formed from peptide bonds, creating a protein.

✔ step two

mRNA is transported from the nucleus of the cell to the ribosomes of the cell.

Explanation:


Which biomolecule is important in storing and passing genetic information to our offspring?

Answers

Answer:

Nucleic Acids.

Explanation:

Nucleic acids pass off genetic information (found in the nucleus) to offsprings

In a well-structured paragraph, evaluate the experimental design of the investigation into the osmolarity of different types of apples for adequate controls and measurement techniques .

Answers

Answer:

To determine the osmolarity of two types of apples in this experiment they use four sucrose solutions and twenty-four apple cylinders. They let these cylinders stand overnight in separate beakers of sucrose solutions, and repeat the procedure for the second variety. For the first variety, they record the temperature for the sucrose solution and remove the core to determine their combined mass. Then they will record the final masses and calculate percent change by using the percentage change in mass formula. After, they repeat these same steps for the second variety.

Explanation:

ATP and photovoltaic cells are similar because
A. they are both key components of plant cells.
B. they both produce chemical and electrical energy.
C. they are both key components of solar panels.
D. they both use energy from the sun to separate electrons from atoms.

Answers

Answer:

D. They both use energy from the sun to separate electrons from atoms.

Explanation:

In the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: ATP and NADPH.

Photovoltaic systems use the photons produced by sunlight to generate direct current (DC) electricity. When the photons hit the panel they are absorbed by the panel's semiconducting silicon material.

In short why is homeostasis so important for survival

Answers

Answer:

Homeostasis is the self regulating mechanism.

for example, It keeps the stable environment within the body. i.e., eventhough our surrounding environment is very chill our body temperature won't change.

what is frictional force?​

Answers

Friction is essentially what you experience everyday. You can think of it as a “sticky” force I guess. It’s an interaction among atoms. Really, friction itself comes from gravity. Gravity pushes us towards the earth and this creates a normal force. If you calculate the friction coefficient, which is done in labs, you can multiply that coefficient by the normal force to get the force of friction. It always opposes the attempted motion. So you want to subtract it from your force in which is causing an acceleration to the object.

antype of cell which carries at a particular function is known as​

Answers

Answer:

tissues

Explanation:

multicellular organisms

Which of the following is an observation?

a. You record the air temperature every day for a week.

b. You propose that a cold front is approaching.

c. You hypothesize that the temperature will increase tomorrow.

d. You conclude that the season is changing.

Answers

Answer:

a. You record the air temperature every day for a week.

Explanation:

Recording air temperature every day for a week can be classified as making an observation.

Observation is a part of the scientific method. It is a basically a way of collecting data.

During observation, our senses can be used or instruments. Depending on the nature of the study, specialized instruments helps to bridge the limitations of our senses. A good scientist is a keen observer. Making a record of air temperature usually by using a thermometer is a way of carrying out observation.

When you record air temperature, you are making an observation.

HELP ASAP!! 3 sentences please!!!
what is the structure and functions of RNA?​

Answers

Answer:mrna Serves as intermediary between DNA and protein; used by ribosome to direct synthesis of protein it encodes

Trna Carries the correct amino acid to the site of protein synthesis in the ribosome

Explanation:

How might stem cells be a solution to paralysis caused by spinal injuries?

Answers

Answer:

transplantation of stem cells or stem-cell-derived cells may contribute to spinal cord repair by: Replacing the nerve cells that have died as a result of the injury; ... Preventing spread of the injury by suppressing the damaging inflammation that can occur after injury.

Explanation:

Why the tropical forest has a more lush plant life than the tundra in regards to how fast things decompose.

Answers

Answer:

Because of Nitrogen

Explanation:

Nitrogen seems to be much difficult for plants to acquire because they can only consume nitrogen when it is combined with oxygen or hydrogen, which is why tropical forests have a lusher plant growth than tundra.The decomposition process is the secret to maintaining the nitrogen cycle going since the bulk of fixed nitrogen arrives from decaying organisms and faces being broken down by bacteria.

What is the y-axis of this chart

Answers

Answer:

In this case, the temperature is supposed to go in the y-axis whereas the rates are on the x-axis.

Why does a lunar eclipse effect a larger area?

Answers

Answer:

A lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, and only on the night of a full moon. The type and length of a lunar eclipse depend on the Moon's proximity to either node of its orbit.

hope that helps

at what point will the pH of the ocean start to decrease?

Answers

By 2100, the pH of the surface ocean could drop to under 7.8, or more than 150 percent compared to today's already-corrosive state—and potentially even more, in some particularly sensitive parts of the planet, like the Arctic Ocean.

How much energy is transferred up through the trophic levels from primary producer to
primary consumer?

Answers

Answer:

On average, only about 10% of the energy stored as biomass in one trophic level—e.g., primary producers—gets stored as biomass in the next trophic level—e.g., primary consumers. Put another way, net productivity usually drops by a factor of ten from one trophic level to the next.

The higher the beanbag rises, the greater the

Answers

Answer:

Kinetic energy??

Explanation:

Which statement correctly describes how an organelle contributes to the ability of the cell to perform life functions?

Answers

Where are the options for this?

The lysosomes digest food and break down cell parts when they die and the cell membrane prevents all harmful substances from entering the cell. So, the correct options are C and D.

What is Cell?

Cell is defined as the smallest unit that can live on its own and that makes up all living organisms and body tissues where the cell has three main parts: cell membrane, nucleus, and cytoplasm. The cell membrane surrounds the cell and controls the movement of substances into and out of the cell.

A single cell is itself an organism. For example, yeast or bacteria. Other cells acquire specialized functions soon after they mature which acquire unique functions when they mature. They cooperate with other cells and become the building blocks of multicellular organisms such as humans and animals.

Therefore, the correct options are C and D.

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Your question is incomplete, most probably the complete question is

Which statement correctly describes how an organelle contributes to the ability of the cell to perform life functions?

A. The cytoplasm stores the genetic instructions for the cell.

B. The mitochondrion responds to chemical messages in the cell.

C. The lysosomes digest food and break down cell parts when they die.

D. The cell membrane prevents all harmful substances from entering the cell.

In a field water flows down through the soil and then throw a layer of loose rocks before the flow stops. what type of material did the water most likely encounter when it stopped
A: A lawyer of granite
B: another soil layer
C: a lawyer of rocks with cracks
D:another lawyer with loose rocks​

Answers

Answer:

B: another soil layer

Answer:

a layer of granite

Explanation:

That's the correct answer on edge.

Explain how Earth’s atmosphere affects solar radiation

Answers

Answer:

Explanation: Three atmospheric processes modify the solar radiation passing through our atmosphere destined to the Earth's surface. These processes act on the radiation when it interacts with gases and suspended particles found in the atmosphere.

The three main atmospheric components that absorb radiation are ozone, carbon dioxide, and water vapour. The sun's UV energy, which is detrimental to the majority of living organisms, is absorbed by ozone. Without the atmosphere's protective barrier, sunlight would cause our skin to burn.

What Earth’s atmosphere affects solar radiation?

29% of the solar energy that strikes the Earth is returned to space as a result of reflection, largely from clouds but also from other brilliant surfaces and the atmosphere itself. Approximately 23% of the energy entering the environment is absorbed by atmospheric gases, dust, and other particles.

Therefore, The solar radiation that enters our atmosphere and is directed toward the Earth's surface is altered by three atmospheric processes. When radiation interacts with gases and suspended particles in the atmosphere, several processes impact the radiation.

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E If you increase the surface area of a rock, how will it affect the rate at which it weathers? It will weather more quickly. b. It will have no effect because surface area is not a factor in weathering. It will weather more slowly. d. It will have no effect because a rock does not have a surface area. C.​

Answers

Answer:

it will weather more quickly

Answer:

It's A

Explanation:

Which type of molecule makes up the double layer of a cell membrane?
A)carbohydrate
B)lipid
C)nucleic acid
-D)protein

Answers

Answer:

B. Lipid

Lipids are molecules that include fats, waxes, and some vitamins, among others. Each phospholipid is made up of two fatty acids, a phosphate group, and a glycerol molecule. When many phospholipids line up, they form a double layer that is characteristic of all cell membranes.

Answer:

b. lipid

Explanation:

The phosphor lipid of cell membrane are arranged which are called lipit bilayer.

what is the living planet called?

Answers

Which living planet? Do you mean Earth or what ever else?

Answer:

Earth

Explanathope its the awnser you need

Characteristics of plant cells include which of the following? Select ALL that apply:


1. cell plate in cell division

2. cleavage furrow

3. large hypertonic vacuole

4. no chlorophyll or chloroplasts

5. no cell wall, only plasma membrane

Answers

Answer:

3. large hypertonic vacuole

1. cell plate in cell division

4. no chlorophyll or chloroplasts

Explanation:

If animal cells do not have chloroplasts to produce glucose, how do animal cells get the sugar they need for energy ?

Answers

Answer:

Animal cells get their energy from cellular respiration, turning it into ATP(adenosine triphosphate).

Explanation:

Xylem tissue and phloem tissue make up a plant's transport system, A. true B. false​

Answers

Answer:

true.

Explanation:

given the following DNA strand which of the following is it’s complementary MRNA? GGACTGATT

A. C C U G A C U A A
B. C C T G A C T A A
C. G G A C T G A T T
D. T T A G T C A G G

Answers

It is A. C C U G A C U A A

The following DNA strand "GGACTGATT" has the complementary mRNA strand "CCUGACUAA". Thus, the correct option is A.

What is mRNA?

An mRNA is a type of RNA which is found inside cells. mRNA is also known as messenger RNA. The mRNA molecules carry genetic information which is required to make proteins in the cell. They carry the information from DNA in the nucleus of the cell to the cytoplasm where the proteins are synthesized.

The mRNA synthesized complementary to the sequence of DNA strand can be determined. As A base pairs with U and vice versa and C base pairs with G and vice versa. Thus, the sequence of mRNA synthesized from the DNA sequence "GGACTGATT" will be "CCUGACUAA".

Therefore, the correct option is A.

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How is the cell membrane like a mixture?

Answers

Answer:

There are many components that make-up a cell membrane including a mixture of lipid, proteins, molecules, and carbohydrates,

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In 1732 CE the Muslims lost a key battle called the Battle of Tours. What region would Islam have spread too if the Muslims had won that battle? What new policies and programs did FDR introduce to improve the economy?Select all that applyA) National Youth Administration to provide jobs and education for those 16 to 25B) Third New Deal to make plans for the coming decade in case the Depression continuedC) Works Progress Administration to create millions of manual labor jobsD) Fair Labor Standards Act to standardize the 40-hour workweek and minimum wageE) Migrant Relocation Act to move those displaced by the Dust Bowl to reserved landsF) Coming of Age Project to provide job training for students about to graduateG) Social Security Act to help elderly Americans and people with disabilitiesH) Agricultural Adjustment Act of 1938 for price support of crops to help farmers Write b-^4 where the exponent is positive Riley earned $5 for 12 of an hour babysitting. What is her hourly rate? Started business whit cash Rs 250000 and Machinery Rs 200000Accounting equation What is the total price of 3.2 pounds of apples at 80 per pound? To find the probability of any event, A.) add up the probabilities of the outcomes that make up the event. B.) use the probability of the outcome that best approximates the event. C.) assign it a random, but plausible value between 0 and 1.D.) average together the personal probabilities of several experts. Solve x2 8x + 15 < 0. The solution set for the quadratic inequality is: What is the probability that a randomly chosen male voter is a registered Democrat? Round your answer to the nearest tenth of a percent. Which of the following actions is a good exampleof protecting sensitive information? Check all ofthe boxes that apply.using a paper shredder to discard documentsthat contain personal medical informationkeeping patient files in a secure electronic filesystem with limited accessmaintaining a confidential patient consultationarea in a doctor's officediscussing private matters with patients in thewaiting room Los domingos vas con tu familia a la ____________ para ir a un caf.A)cineB)museoC)plaza The plesiosaurs stomach had 2.25 kilograms of gastroliths. The largest stone was 0.074 meter long, 0.048 meter wide, and 0.022 meter thick.3. Write the length of the largest stone as a number name and in expanded form.Please hurry! A rock displaces 475ml of water whats its volume PLEASE ! Find the slope of the line graphed. The change in y over the change in x is the same as??? Which answer choice correctly uses a semicolon to combine sentences 6 and 7? A. The people in the ghetto were prepared, however; they forced the Nazis to retreat. B. The people in the ghetto were prepared; they forced the Nazis to retreat. C. The people in the ghetto were prepared: they forced the Nazis to retreat. D. The people in the ghetto were prepared; to retreat. Order set of numbers from least to greatest 3/4, 0.72%, 69%, .63 What molecule makes up 3/4 of the Earth's surface and all life could not survive without it? Hurry plz theres a timer!!Paco was driving his scooter west with an initial velocity of 4 m/s. He accelerates at 0.5 m/s for 30 seconds.What is his final velocity?O 2 m/sO 8 m/sO 19 m/sO 60 m/s A model rocket is launched from the top of a building. The height (in meters) of the rocket above the ground is given by h( t) = -16t2 + 96t + 14, where t is the time (in seconds) since the rocket was launched. What is the rockets maximum height and when does this occur.