what is the difference between redshift and blueshift?

Answers

Answer 1

Answer:

Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. The concept is key to charting the universe's expansion. Visible light is a spectrum of colors, which is clear to anyone who has looked at a rainbow.

Explanation:


Related Questions

how many CELLS does a pea plant have

Answers

Answer:

14 ,',',','',',' ' ',',,',',-,',',-"'''"''"-,-

Which compares prokaryotes and eukaryotes?

Prokaryotes have DNA, and eukaryotes do not.
Eukaryotes have DNA, and prokaryotes do not.
Prokaryotes are multi-celled, and eukaryotes are single-celled or multi-celled.
Prokaryotes are single-celled, and eukaryotes are single-celled or multi-celled.

Answers

Answer:

C. Prokaryotes are multi-celled, and eukaryotes are single-celled or multi-celled.

Explanation:

took the unit test review on edge

Answer: D.) Prokaryotes are single-celled, and eukaryotes are single-celled or multi-celled. 

Explanation: eukaryotes can be unicellular. most protists are single-celled eukaryotes!

Complete the statement: Any mechanical device which is used to help people do work is a______.​

Answers

Answer:

Machine

Explanation:

8th grade science class vibes

Which of the following is a final product of aerobic respiration? A. pyruvate B. oxygen C. glucose D. carbon dioxide

Answers

Answer:

carbon dioxide (and water)

Explanation:

Answer:

you anwer is D.) carbon dioxide

but the full anwer if it asked for the full thing carbon dioxide , engergy , and water

Please HELP!!! ASAP!!Prokaryotes reproduce asexually via -
A. Spore formation
B. Bud creation
C. Vegetative propagation
D. Binary fission

Answers

Answer: I believe 99% it is D

Explanation:

A condition causing RUQ pain in which small polyploid masses (papilloma) arise from the gallbladder wall is. a. Cholelithiasis. b. Cholestrosis. c. Adenomyomatosis. d. Pruritis.

Answers

Answer:

c. adenomyomatosis

Explanation:

i found a quizlet if you need more answers. its called chapter 10: the gallbladder and biliary system (practice test) . created by citlaly_zamarripa

Which statement about connective tissue is true?

Answers

Is there more to this problem?

Bart thinks mice exposed to microwaves will get stronger (maybe he's been reading too much Radioactive Man). You decide to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to 10 other mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse's food. found that 8 out of 10 of the microwave mice were able to push the block. 7 out of 10 of the mice without microwaves were able to do the same.

identify
1. control group
2. independent variable
3. dependent variable
4. what are some of the mentioned control variables?
5. what should bart's conclusion be?​

Answers

Answer:

Control group = mice that had not been exposed

Independent variable = Mice receiving radiation

Dependent variable = Number of mice that are able to push the block of wood.

Control variables = Health of mice, mass of block

Radiation does not have effect on strength of the mice

Explanation:

In an experiment the variable which changes with respect to the other variable is called the dependent variable and the other variable is called the independent variable.

The control group is the group that does not receive treatment which is used to compare the effect of the treatment.

The control variable is another variable that must be held constant when performing the experiment.

Here the

Control group = mice that had not been exposed

Independent variable = Mice receiving radiation

Dependent variable = Number of mice that are able to push the block of wood.

Control variables = Health of mice, mass of block

It was found that 8 out of 10 of the microwave mice were able to push the block. 7 out of 10 of the mice without microwaves were able to do the same. This means that there was no significant difference hence, the conclusion drawn should be that radiation does not have any effect on their strength.

20 points for right answer only (dont put a random answer or you will be reported)

Answers

Answer:

25%

Explanation:

let me know if im right

Answer:

50%

(sorry about my handwriting)

If the father has type o blood, the children will have to be either A or B (you can mostly ignore the i's)

Which of the following best describes a population on sea ice in the Arctic?
polar bear and walruses or a group of ringed seals

Answers

Answer:

A group of ringed seals

Explanation:

A population is a group of several of the same species of animal.

Answer:Some animals in Russia’s ecosystem is Arctic Ocean dwellers like polar bears, seals, whales, and walruses.

Explanation:

A magazine published an article stating that drinking water obtained from waste water is harmful for health. Why is this information most likely to be incorrect? The article does not provide a scientific basis for the information magazines do not generally publish reliable scientific information drinking water has been obtained from recycled waste water since many years scientific tests show that drinking water obtained from waste water is pure and safe

Answers

Answer:

The correct answer is - the article does not provide a scientific basis for the information

Explanation:

Generally, Magazines publish articles with reliable information and sources that are universally accepted or have a scientific basis behind the information. It is already known that wastewater is recycled and purified before making it available for drinking.

In this article, there is no scientific basis behind the information as no scientific data mentioned or ignore test and practice in use from the years which is scientifically tested.

Examples of reproductive advantage?

Answers

Answer:

Here are the advantages and disadvantages of sexual reproduction: 1. It creates a preserved and expanding effect. This method of reproduction will help preserve an existing genetic code of an allele to make sure that a certain species does not mutate, which is essential to its multiplication.

Explanation:

hope  this helps please mark  me brainly!!

If transpiration didn't take place, would water be able to enter the roots of the plant? Explain your reasoning

Answers

Answer:

Yes

Explanation:

If transpiration do not occur water will enter the roots of the plants because water enter through the roots by osmosis and move to the xylem vessels after which it get to the leaves and it is lost by evaporation and transpiration. Transpiration is the process why by water is loss through the stomata opening of the leaves and this help in exchange of gases, reduction of excess water and help in plant growth.

how does the structure help the Hemoglobin perform its function

Answers

Answer:

structure helps stabilize the position of the attached heme

PLEASE HELP ME
8. In rabbits, the allele for black coat color (B) is dominant over the allele for brown coat color (b).
Two black rabbits are mated. They produce some offspring that are black and some that are
brown. What are the genotypes of the parents?*

using the information from question #8, what genotypes are possible among the offspring?
1. BB, Bb and bb
2. BB and Bb
3. BB and bb

Answers

Answer: Answer 2

Explanation:

Because the other bunny is BB or Bb.

Explain how DNA is semiconservation

Answers

According to the semiconservative replication model, which is illustrated in Figure 1, the two original DNA strands (i.e., the two complementary halves of the double helix) separate during replication; each strand then serves as a template for a new DNA strand

freely movable joint is also known as synovial joint why​

Answers

Answer:

Why are synovial joints freely movable?

Diarthroses are freely movable articulations. ... The bones of a synovial joint are covered by a layer of hyaline cartilage that lines the epiphyses of joint ends of bone with a smooth, slippery surface that does not bind them together. This articular cartilage functions to absorb shock and reduce friction during movement.

Explanation:

please give me brainly got my answer from G00GLE so of course its correct hope i helped!!!

Answer:

Explanation:

Synovial joints (freely movable joints) allow us the free movement to perform skills and techniques during physical activity. Synovial joints have synovial fluid in the joint cavity that lubricates or 'oils' the joint so it moves smoothly. Synovial fluid is made by the synovial membrane.

Can someone please help me this is Biology in 7th Grade

Answers

The correct answer is C. They move to an area with lower oxygen concentration

Explanation: Gas molecules can pass through semi-permeable which means they don’t need transport proteins for the movement

Hope this helps :))

Which of the following molecules supplies the main source of short term energy used in cellular respiration?


F enzymes
H Lipids
G carbohydrates
J proteins

Answers

Answer:

G- carbohydrates

Most of the ___-____ pathways within____require_______, and that is the reason we need to____, or ______.

Answers

Answer:

What's the subject?

And are there any word choices?

Explanation:

Which phrase best discribes how scientists use the data they collect

Answers

Answer: could you copy/paste or screenshot the phrase options? It'd really help me to answer your question.

Explanation:

if a drug inhibits tge synthesis of dna what part of the cell would most likely be affected​

Answers

Answer:

the nucleus

Explanation:

this is where DNA is stored

Explain how the structures of plant tissues and organs are directly related to their roles in physiological processes.

Answers

Answer:

How the structures of plant tissues and organs are directly related to their roles in physiological processes.

o Plant organs are limited to roots, stems, leaves, flowers, fruit and cones.

o Physiological processes are limited to photosynthesis, cellular respiration,

transpiration, and reproduction.

o Plant tissues are limited to meristematic, ground, dermal and vascular tissues.

o Plant structures are limited to cambium, guard cells, phloem, seed, stomata and

xylem

Explanation: Hope this helps have a safe and happy new year

Roots, stalks, leaves, flowers, fruit, and cones are the only organs found in plants. Photosynthesis, metabolic processes, transpiration, and fertilization are the only physiological activities.

Plant and plant tissues:

Photosynthesis and the movement of mineral-containing water ions are critical processes in the development of healthy plants. Plants have three primary structures or organs:

LeavesStemsRoots

They're made up of groupings of specialized tissues with structures that are tailored to the functions they do.

Adaptations are distinctive features that help plants survive in their specific settings. Plants rely on their specialized structures to provide their fundamental requirements, protect themselves from predators, and aid reproduction.

Find out more information about 'Plant'

https://brainly.com/question/10424062?referrer=searchResults

Compare and contrast the disposal of waste via composting and via recycling. What are the
pros and cons of each type?

Answers

Answer: Commercial Trash Management, Consulting, Cost Reduction and Zero Waste Programs. Compliance, training, recycle and compost program implementation, waste equipment.

Explanation:

What according to who , is the definition of health?​

Answers

Answer:

Health is the state of complete physical mental and social well being and not merely the absence of diseases or infirmity.

Explanation:

Hope it will helps you

The sputum (fluid coughed up from the lungs) of many smokers contain cells with mutations in the genes for p53. The smoking-induced mutations appear to be an early signal showing that cancer of the lungs will follow. What is the likely relationship between early p53 mutation and the development of lung cancer

Answers

Answer:

The correct answer would be - mutations in the p53 would prevent abnormal cells from dying by apoptosis.

Explanation:

P53 or tumor protein 53 gene is the gene that produces a protein that controls DNA repair and apoptosis in the cell cycle if there is an error in the DNA or cells growing abnormally therefore known as tumor suppressor gene.

If there is a mutation in this gene will prevent it from performing its function of DNA repair or stimulating apoptosis and then p53 would prevent abnormal cells from dying by apoptosis.

Thus, the mutation in P53 would lead to the growth or development of lung cancer.

Adenine makes up 22% of the DNA of an organism. Approximately what percentage would be thymine?

A. 28%
B. 22%
C. None of these
D. 56%

Answers

B. Thymine have the same percentage as adenine and Cytosine and guanine have 28%, which combined together you get 100%


What can cause a heart to not function
correctly?
A hole in the heart
B running
C Sleeping

Answers

Answer:

the Awnser is A. Hole in the heart

a: hole in heart is what i would put

what is the difference between habitats and niche?​

Answers

Answer:

The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives

Answer:

The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives:)

. Which of the following describes the healthiest ecosystem? *
a. An ecosystem that has low biodiversity
b. An ecosystem that has high biodiversity
c. An ecosystem that has many more producers than any other trophic level
d. An ecosystem that has many more herbivores than any other trophic level
e. Answers B and C

Answers

Answer:

The Answer is E. Answers B and C

Explanation:

Answer:

e) Answers B and C

Explanation:

aka the 5th option

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