how does the colour of star help to find its age​

Answers

Answer 1

Answer:

As stars age, they run out of hydrogen to burn, decreasing the amount of energy they emit. Thus, younger stars can appear bluer while older ones appear more red, and in this way, a star's color can tell us something about that star's age.

Explanation:


Related Questions

After first exposure to an antigen, about how long does it take for antibodies to reach a detectable level?

2. What could explain the significant increase in antibodies to non-Lyme disease antigens (blue line)?

3. Lyme disease patients who are treated with antibiotics quickly usually do much better than those who are treated later. Why do you think this is the case?

4. Why doesn’t the Antibodies in Lyme Disease Antigens (orange line) decrease after the first immune response, compared to non-Lyme Disease Antigens (blue line)?

5. Professor Dr. Utpal Pal studied the Borrelia burgdorferi bacterium at the University of Maryland. Dr. Pal found that Lyme disease is caused by your immune system. When the body is infected with Lyme disease, it overreacts causing inflammation in the joints. Although antibiotic resistance has not been observed for B. burgdorferi, create an argument defending the control of antibiotic use to the public. Analyze the data in the graph below by answering the following questions. Be sure to use complete sentences.

Answers

After first exposure to an antigen, it can take about three weeks for antibodies to reach a detectable level. The body will react to disease by creating antibodies and testing their effectiveness against the unknown antigen.

Antibodies are the body's way of fighting off foreign threats. Also known as immunoglobulin, they detect and attack pathogenic bacteria and viruses. These antibodies detect a protein that is unique to the surface of the pathogen called the antigen.

At times, we can see an increase in antibodies for one disease, for example, Lyme disease, in the presence of non-Lyme disease antigens. This is often due to antigenic variation, which is a method used by pathogens to mask their respective antigens. There are also general use antibodies that will increase in reaction to any pathogen.

As with any illness, a patient who receives treatment sooner will fare better than those whose treatment is delayed. This is due to the fact that earlier treatment with antibiotics will allow the body to fight off the infection before the bacteria can reproduce further.

After the first immune response, antigen-specific antibodies will remain for some time to provide the body with "immunity" to the pathogen, while general-purpose antibodies will return to a base value.

To learn more visit:

https://brainly.com/question/7597406?referrer=searchResults

colorless, odorless, tasteless, and transparent

All of these are what kind of properties of water?

Chemical or physical?

Answers

Answer:

Physical!

Explanation:

Theres your answer, Physical

Answer:

I believe these are the physical properties of water

Explanation:

model of a cell cycle

Answers

The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells.

this is your answer

What is the difference between "growth and development" and "evolution"

Answers

Answer:

What's the difference between growth and development and evolution?

is that growth is an increase in size, number, value, or strength while evolution is (general) gradual directional change especially one leading to a more advanced or complex form; growth; development.

Explanation:

Hope this helps.

Which is an example of a monosaccharide?

Cellulose,starch, sucrose, glucose

Answers

Answer:

Glucose, fructose, sucrose, galactose, etc.

Explanation:

Glucose, fructose, sucrose, galactose etc., are the monosaccharides.

Answer:

Glucose

Explanation:

Glucose is a monosaccharide because monosaccharides are simple sugars that are the building blocks for the more complex forms of sugars, or carbohydrates. Glucose is a monosaccharide, meaning one sugar.

Tip: If it ends in -ose, it's typically the name of a sugar.

how does one chromatid compare to its sister chromatid?

Answers

Answer:

One chromatid compares to its sister chromatid because when a chromatid is replicated, a sister chromatid is formed. The sister chromatid will be a genetically identical copy to the chromatid because the cell being replicated will also be genetically identical.

Which statement about the nucleus of a cell is NOT true?
a. The nucleus contains a nuclear membrane.
b. All of the cell membrane is found in the nucleus.
C. The nucleolus is contained in the nucleus.
d. Genetic material is found in the nucleus

Answers

Answer:B

Explanation:The rest of them are correct.

Answer:

its B

Explanation:

Why should we not sleep under peepal tree at night?
This question is partially wrong guys .There is no such danger around peepal tree see the researchs and decide yourself.
some people have written wrong information in this group kindly request you guys to correct wrong information and get new information.



Plants take in carbon dioxide (CO2) and release oxygen (O2) during day time when they undergo the process of photosynthesis and they take in O2 and release CO2 during night as a result of respiration.

There are 3 photosynthesis pathways adapted by plants for carbon fixation namely C3 pathway (Calvin cycle), C4 pathway and CAM pathway (Crassulacean Acid Metabolism). C3 and C4 are common among land plants and among these two, C3 is the most common.

CAM pathway can be seen in desert plants and epiphytes (i.e. plants that live on other plants). Unlike C3 and C4 plants, these plants keep their stomata closed during day and open it during night for fix CO2 in the form of malate and releases O2. They do it so, to prevent loss of water due to sunlight. During the day, they breakdown the malate and use the released CO2 through Kalvin cycle to produce sugars, similar to C3 plants. So, CAM plants releases oxygen during night.

Peepal tree is a hemi-epiphyte in its native habitat i.e. the seeds germinate and grow as an epiphyte on other trees and then when the host-tree dies, they establish themselves in the soil. When they live as an epiphyte, they use CAM pathway to produce carbohydrates and when they live on soil, they switch to C3 type photosynthesis. So, a Peepal tree can also release oxygen during the night depending on whether it is an epiphyte or not.

Other plants that give out oxygen at night are Areca Palm, Neem tree, Snake plant, Aloe Vera, Gerbera and Tulsi.​

Answers

Answer:

Ghost can come if anyone sleeps under peepal tree

Is this correct? Anyone help

Answers

Yes, that is correct

in what cell organelle is the green pigment, chlorophyll found?

Answers

I think the answer is leaves

Answer:

Chloroplasts

Explanation:

I hope this helps.

the external energy source for producers is ________ and the final energy-rich product produced in the mitochondria of consumers is ________.

Answers

Answer: the external energy source for producers is The sun and the final energy-rich product produced in the mitochondria of consumers is adenosine triphosphate (ATP).

                   The first one is: The sun

             The second one is: adenosine triphosphate (ATP).  

Explanation: I hope that's what you're looking for. Have a nice day studying.

HELP PLEASE !!

Which of the following correctly describes the synthesis of proteins?

Question 6 options:

DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.


DNA is translated to tRNA, whihc then attaches to a ribosome where it is transcribed into a protein.


DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein.


DNA is transcribed to tRNA, which then attaches to a ribosome where it is translated into a protein.

Answers

Answer:

DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.

I looked up the definition of transmitted and it fits better

DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein. The correct answer is option C.

What is the role of mRNA ?

mRNA is the code of DNA that carries the information of coding proteins from the nucleus to the cytoplasm.

DNA is transcribed into mRNA where it is transcribed intro message to which kind of protein is about to be formed. A triplet forms one amino acid and this process is taking place in the ribosome.

The chain of amino acids forming a protein is released in the cytoplasm and the proteins is then assigned a particular position where so ever is them needed mostly in the cytoplasm.

Therefore, DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein. The activity takes place in the ribosome.

Learn more about mRNA activity at :

https://brainly.com/question/29314591

#SPJ2

what is the primary function of cellular respiration?

Answers

Answer:

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells. Hope i helped

In Tehran v US ex.rel. Shott (1966), the US Supreme Court said the purpose of a trial was to

Answers

Answer:

to determine the truth.

what is the function of carbohydrates for the body

Answers

Answer:

to provide energy to the body

Explanation:

The function of carbohydrates for the body is mainly to provide us with energy. Carbohydrates are broken down into simple sugars and are absorbed into your bloodstream!

20 points help A number of similar families make up a(n) _____.

A order
B class
C genus
D specie

Answers

Answer:

Genus Species

Explanation:

Specie
Hope it helps!!!!

how long does uncooked ground beef last in the fridge

Answers

Answer: 2-4 days

hope this helps

pls give brainliest. thank you

Two things acting upon each other

Answers

Answer:

The meaning of force? or gravity pulling the object towards the Earth.

define angiosperm with example

Answers

Angiosperms are a major division of plant life, which make up the majority of all plants on Earth. Angiosperm plants produce seeds encased in “fruits,” which include the fruits that you eat, but which also includes plants you might not think of as fruits, such as maple seeds, acorns, beans, wheat, rice, and corn

A block of wood has a mass of 120 g
and a volume of 200 cm3. What is the density of
the wood?

Answers

Answer:

0.6 cm3

Explanation:

D=mass/volume

D=120g/200 cm3

D=0.6 cm3

The illustration shows a number of changes occurring. What is a chemical change

Answers

Answer:

A PHYSICAL CHANGE is a transformation in which the nature of matter does not change. state changes. State changes are physical changes

Explanation:

Los cambios químicos suponen la desaparición de una sustancia para dar paso a la aparición de una nueva. ... Algunos ejemplos de propiedades químicas de la materia son acidez, poder oxidante, combustibilidad, esterificación, fermentación, hidrólisis, putrefacción, saponificación, etc.

please give me crown

Một đoạn phân tử DNA có 2200 nucleotide. Hãy cho biết đoạn DNA này dài bao nhiêu Å ? Biết một chu kì xoắn có 10 cặp nucleotide (nu), dài 34 Å.

Answers

Answer:

10 cm Tôi hy vọng điều này có thể giúp bạn

how many tons of soil is eroded each year in the united states
A. 20.5 million
B. 95.6 Million
C. 1.6 Billion
D. 22 Billion ​

Answers

The answer to your question is D

Answer:

I think D Is the answer

Explanation:

I am not sure though

which statement is true about cell differentiation?

Answers

Answer:

It causes cells to change and specialize.

Explanation:

hope this helps you if it does please mark brainiest

members of phylum rotifera are single-celled organisms.

Answers

Answer:

False

Explanation:

hope i helped

where are the motor proteins that move chromosomes toward the poles of the mitotic spindle located?

Answers

Answer:

They are at or near the ends of the microtubules. I hope this helps you! :D

Microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.

What are motor protein?

Motor protein are defined as a group of molecules with the ability to travel across the cytoplasm of animal cells. Molecular motors called motor proteins move along the cytoskeletal filaments of the cell by hydrolyzing ATP. They provide a variety of tasks for biological systems, such as facilitating intracellular trafficking along biopolymer filament tracks and regulating filament sliding during muscle contraction.

Microtubules are defined as the cytoskeleton is made up of tubular-structured polymers, which are present throughout the cytoplasm. Microtubules play a variety of roles in dividing cells, including the construction of the mitotic spindle and axon extension in neurons.

Thus, microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.

To learn more about motor protein, refer to the link below:

https://brainly.com/question/2556143

#SPJ5

Please someone help me with this thank you

Answers

Answer:

each substance in a mixture keeps most of its characteristic properties

pls mark brainliest

If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely __________.

a.
be eliminated
b.
increase
c.
decrease
d.
remain the same



Please select the best answer from the choices provided

Answers

Answer:

b

Explanation:

since predator seems to have the upper hand the predator a will most likey not be able to have any prey causing the preadotors b to inrease

Answer:

It's B

Explanation:

What is a protein? a macromolecule that is made from various nucleotides a macromolecule that is made from various amino acids a molecule that plays only a minor role in cellular function a molecule that comes in many shapes but is always the same size a molecule that comes in many sizes but is always the same shape

Answers

Answer:

Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.

Explanation:

Also can you mark me as brainliest?

What is the function of the sporangium?
protects the mature gametes
protects the developing mother spore cells
forms haploid cells through mitosis
passes characteristics from one generation to the next

Answers

Answer:

protects the developing mother spore cells

Explanation:

got it right

Other Questions
On her daily walks, Ginny would often find abandoned, trapped, or endangered kittens or cats that needed rescuing. In one such episode, Ginny found a group of kittens trapped in a pipe.What is the main point of this text? Ginny had a determination, unlike other heroic dogs.A Ginny had an uncommon ability to find cats that needed help.B Ginny knew how to rescue cats stuck inside of a pipe.D Ginny knew how to communicate with her particular owner. Choose all options that apply. In the US Customary System, which of the following terms is used to measure volume? a) Cup b) Tablespoon c) Liter d) Fluid ounce write a Pythagorean triplet with the following numbers as one of the numbera,4 b,8 c,12 d,22 with the formula plsclass 8 How did the war of 1812 impact the United States ?A. It resulted in a surge of national pride.B. It led to the belief that United States should stay out of other countries' conflicts.C. It spurred on the removal of Indians.D. It caused increased division between political parties.Plz answer this ASAP and if u know ur answer is wrong please don't put it What is the length of the diagonal of the square shown below? 5 45 5 5 90 5 O A. 5 B. 10 C. 5 D. 5/5 E. 5.2 F. 25 can anyone say me the answer from 4 d IS THIS CORRECT? CLASS 6 MATHS!!!!! What is length of Ef?A.10B.15C.20D.v200E.v300F.v500 How do you get caught up in in schoolwork when your really unmotivated Megan boarded a train at 10:23 and arrived at her destination3 hours 5 minutes later. What time did she arrive at her.destination What description best defines what revisiting is when paraphrasing? The visual represents a karyotype of an individual with Down Syndrome, a genetic disorder that causes affected individuals to have delayed development, intellectual disability, and a distinct facial appearance.Based on the karyotype shown, what TWO genetic changes or events lead to Down syndrome?Ahaving a missing chromosomeBhaving an extra chromosomeCan insertion mutationDa deletion mutationEnondisjunction can i have help for a braniliest to who anwsers first..? What is the answer first one to answer gets marked braniest Find the domain of Log (x-4) What event led to the growth of Atlanta? Why is this significant to the history of the United States? Geometry please help me Determining angle measures in context. what mineral is needed in significant amounts by the body??? What example of irony can beseen in the following passageof "The Invalid's Story"?Section 5- setting things torights, and all the timecontentedly humming "SweetBy and By" in a low tone, andflatting a good deal.A. He was humming "Sweet By and By"but it smelled the opposite of sweet.B. He was humming quietly, but thenarrator was yelling loudly.C. It was quiet in the front car of the trainand loud in the back car of the train. A manufacturer of bicycles has determined that 550 bikes per month will be sold at a price of $250. At a price of $150, it is estimated that 750 bikes will be sold. a) Determine a linear function (equation) that predicts the number of bikes that will be sold each month at any given price. b) Use your equation from question a to predict how many bikes will be sold at $350.