How are astronomers able to determine what elements are found in other stars and galaxies?

Answers

Answer 1

Answer:

This type of study is called spectroscopy. The science of spectroscopy is quite sophisticated. From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star.

Explanation:


Related Questions

The neurotransmitter thought to be involved in learning and memory is:
1) acetylcholine.
2) norepinephrine.
3) glutamate.
4) glycine
5)GABA

Answers

It is Acetoylcholine

what is the speed of a car that travels 485 meters in 15 seconds

Answers

The answer would be C. 32.3 m/s

Please help me I will offer brainliest.

Answers

NASA using airplanes

Answer:

NASA using aeroplanes.

Explanation:

I think its only NASA.

matter and energy move through ecosystems between different organisms. how does matter travel through an ecosystem and through earths spheres?​

Answers

Answer: In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

Explanation:

In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species ch the Atlantic sid. See different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the stimus about 3 million years ago. If the geological evidence has been misinterpreted and the isthmus had formed very rapidly in less than 1,000 years), which of the following predictions is most likely?
A. greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabt stalow water
B. greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
C. similar percentages of difference in DNA sequences between all pairs of sister species
D. greater percentage of difference in DNA sequences between Atlantic species than between Pacific species

Answers

Answer:

The answer is "Choice A".

Explanation:

The Panama isthmus is indeed a patch of land which separates its sea from its Atlantic ocean to The pacific in two halves. The Panama Isthmus allows spreading the seafood applicable state, although due to geographical barrier, the very same turtle species were isolated. Its deep squirrels of liquid are diverged quite early as being against shallow water shrimps which are characterized by the rising of the Jamaica isthmus, first off the island can be crossed until it was closed through shallow water prawns and shallow-water animals. If Panama's black sea was established less than 1000 years, it has a greater effect on deepwater shrimp and very low water lobsters. Consequently, in water depth prawns, a disparity in hereditary degree (DNA) is higher than in shallow species. The deep waters have been affected earlier so the variation in DNA sequences throughout all sister species will not be the same.

An object in motion tends to stay in motion and an object at rest tends to
stay at rest unless an outside force act on it is called
Kinetic energy
Potential energy
Newton's First Law
Acceleration

Answers

Answer:

Newton's first law

Explanation:

The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

What is an example of elastic potential energy?
a. stretching a rubber band
b. apple falling from a tree
c. A dog lying on the floor
d. throwing a ball

Answers

Answer:

a.stretching a rubber band

Answer:

An example of elastic potential energy is

A. stretching a rubber band.

Hope it will help :)

Which of the following is NOT an ecosystem
service that forests provide?
habitat for wildlife
reduce soil erosion
lumber
carbon sink
all of the choices are ecosystem services

Answers

Answer:

All of the choices are ecosystem services.

Explanation:

Trees' roots hold soil down so it doesn't move everywhere and they recycle carbon into oxygen. In addition, they provide us wood and beautiful wildlife!

Have a great day!

The ecosystem services are all the benefits provided by the ecosystem to human. Otion A) habitat for wildlife is not an ecosystem service.

What are the Ecosystem Services?

When talking about ecosystem services, we are referring to the goods and services offered by ecosystems to human populations

There are different types of ecosystemic services:

Provision or supply:

These are the products obtained by nature to be used or consumed, directly or with previous processing.

Among them, we can mention food, clear fresh-water, fertile soils, geotic materials, raw materials (used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, and others.

Regulation:

Refers to ecological processes that improve life.

Among others, we might mention climate regulation, CO₂ absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil formation and fertility maintenance, nutrient cycling, waste recycling, pests/plagues control, etc.

Cultural:

Refers to the benefits that are not material.

Ecosystems also provide a recreational place or area to spend time, learn. They are a spiritual/religious space, a source of inspiration. They are considered to be cultural patrimony and the source of scientific knowledge.

Among th options, the one that is not a ecosystemic service is option A) habitat for

You can learn more about ecosystemic services at:

https://brainly.com/question/2189549

.

Do alligators have complete 360 vision?

Answers

Answer:

yes

Explanation:

aid of diagram describe the biconversion of surfur cycles?​

Answers

Answer:

The sulfur cycle describes the movement of sulfur through the geosphere and biosphere. Sulfur is released from rocks through weathering, and then assimilated by microbes and plants. It is then passed up the food chain and assimilated by plants and animals, and released when they decompose.

During what phase of meiosis does non-sister chromatids align at the equator?

Answers

ooo i know this one its metaphase

What is a subduction zone and a transform boundary?

Answers

a transform fault or transform boundary is a fault along a plate boundary where the motion is predominantly horizontal. it ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.

What do you call the process of a flower making a seed through pollination?

A. photosynthesis

B. fertilization

C. germination

D. Precipitation

Answers

hi!! i think the answer to your question is B. fertilization!!

i hope this helps, good luck!! <3

In humans, normal color perception (N) dominates the expression of color blindness (n), and both of these genes are carried on the X chromosome (XN or Xn). A woman with normal color vision has a color-blind father. Her husband is also color-blind.

a. What is the genotype of the colorblind man? ____
b. What is the genotype of the woman? ______
c. What is the probability of her daughter to be colorblind? __________%
d. What is the probability of her sons to be colorblind? _________%

CAN SOMEONE HELP MEEE eeee

Answers

A- X*Y
B-XHXH
C-50%
D-50%

Mitosis occurs in certain types of eukaryotic cells called:
A. Gametes
B. Somatic cells
C. Sex cells
D. Egg and sperm cell

Answers

Answer: somatic cells

Explanation: the other three don’t cause mitosis, instead cause meiosis

You have isolated a new single gene mutation in zebrafish you call Casper because the mutant fish are clear (no pigments in the scales). You perform the following crosses: Cross Progeny Wild type X Casper 20 clear, 19 normal Casper X Casper 21 clear, 10 normal a. You notice that each cross produced a similar number of clear offspring but different number of normal offspring. What is going on here

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

The poles of a solenoid can be reversed by

Answers

by reversing the direction of the current.

In this part you will be answering 2 different questions, Please use a full sentence.

Answers

Answer:

search the answer from Urban dictionary

Explanation:

I NEED HELP ASSAP


how can you tell whether two magnets will attract eachother, repel eachother, or both

plz explain in a few sentences​

Answers

Answer:

Explanation:

there is a positive side and a negitive side to magnets two of the same side of the magnet will repel oppisites will attract

positive+positive=repel

positive+negitive=atract

Answer:

attract: when two magnets will attract, S and N will be facing each other

repel: when two magnets will repel, S and S or N and N will face each other

both: when two magnets will attract and repel, the magnets won't be placed in the same way. N will be facing the middle of both S and N or S will be facing the middle of N and S

Explanation:

this is what i learned i hope it's right if not i didn't say nothing

7. Explain how the equations for photosynthesis and cellular respiration compare.

Answers

Answer: In Photosynthesis, carbon dioxide and water is yielded to glucose and oxygen. In respiration, glucose and oxygen is yielded to carbon dioxide and water. C6H12O6 (glucose) + O2(oxygen) → CO2(Carbon Dioxide) + H2O(water) + ATP energy. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O. Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O.

Explanation:

What is a cell in science

Answers

Answer:

Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete organism in itself, such as a bacterium or yeast

hope it's help

#carryONlearning

Answer:

A cell is defined as the smallest, basic unit of life that is responsible for all of life's processes.

Explanation:

Which of the following correctly explains the differences between artificial and natural selection?

Answers

Not sure what the options are, but artificial selection would be when farmers/breeders choose only to plant/breed the organism with desired characteristics in order to cause the evolution of the trait while natural selection is when organisms that are better adapted to their environment usually survive and produce offspring, causing the evolution of their traits which help them to survive.

Hope that helps!

What characteristics make dna a polymer ?

Answers

First of all DNA is a polymer made from four different monomers , called nucleotides . These join together in different combinations to make long strands. In a DNA molecule , two strands wrap around each other to form a double helix structure.

What enzyme is used to break down bacteria

Answers

CAZymes is the correct answer

Why are normally unseen members of the food web, such as soil microorganisms, essential to the nitrogen cycle?

Answers

Answer: Why are normally unseen members of the food web, such as soil microorganisms, essential to the nitrogen cycle? ... Since not all organisms can utilize the nitrogen gas directly, these microorganisms convert nitrogen in different nitrogen compounds, such as ammonia, nitrites, and nitrates. In this article we explore how nitrogen is cycled and the important role of microbes in this cycle. ... Nitrogen is required by all living organisms for the synthesis of organic molecules such as amino acids, nucleic acids and proteins. The Earth's atmosphere contains almost 80% nitrogen gas

Bacteria play a central role:

Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates.

Bacteria of decay, which convert decaying nitrogen waste to ammonia.

Nitrifying bacteria, which convert ammonia to nitrates/nitrites.

Denitrifying bacteria, which convert nitrates to nitrogen gas.

Explanation:

Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?

1.It It benefits organisms that are immobile

2.immobile.It gives offspring the genetic traits to survive in a particular environment

3. It uses less energy.

4. energy.All of of the above above

Answers

Answer:

3

Explanation:

because you don't have to ...you know

Answer:

It is 4 all of the above.

Explanation:

Yes because I got it right on test.

What are CD4 cells?
a. T-cells that have a CD4 receptor
b. B-cells that have a glycoprotein receptor
c. HIV antigens
d. red blood cells

Answers

Answer:

I'm pretty sure it is b because CD4 cells are the cells that are a glycoprotein

Explanation:

describe the structure of​

Answers

Answer:

Of what?

Explanation:

Number 8. was colorblind just like his father: Where did the son at 8 get his allele for colorblindness?

Answers

Answer:

son 8 inherited it from her.

Explanation:

Given that Son 8's mother is a carrier of the blindness allele

Assuming that the father is colorblind due to a genetic mutation, there are a few possible scenarios for how the son inherited the allele for colorblindness.

What is genetic inheritance?

Genetic inheritance is the study of how certain inherited traits are passed down from generation to generation.

Assuming the father is colorblind due to a genetic mutation, there are a few possibilities for how the son inherited the colorblind allele:

His father's colorblindness allele was passed down to his son. The son in this case inherited the mutation from his father.The mother carries the colorblindness allele, which she passed on to her son. In this case, the son inherited the mutation from his mother, who is not colorblind but carries the gene.The colorblindness mutation is present in both the mother and father, and the son received one copy from each parent. This is a less likely scenario, but it is possible if both parents carry the gene.

Thus, in any of these scenarios, the son inherited the allele for colorblindness from one or both of his parents.

For more details regarding inheritance, visit:

https://brainly.com/question/29679846

#SPJ2

help help help help!

Answers

Answer:

1:C

2:C

3:D

4:D

this is 110% fact answer

The answers are C, C AND D D
Other Questions
Someone please help me Ill give out brainliest please dont answer if you dont know (3x +7x + 2x + 3) + (x + 1) Did the disappearance of the Buffalo did not affect the Indians plains? Please help me with this biology question........... Chloroplasts are present in some plant cells only Give an example of plant cells that do not contain chloroplasts and explain why Timothy appears on television as an investigative reporter, exposing businesses that have defrauded viewers in the area. What quality might be helpful to Timothy in his career?Timothy is artistic and enjoys painting.Timothy is a persistent and curious person.Timothy enjoys working outside with animals.Timothy can write computer programming. How was the home front during WWI similar to the home front during WWII? The water cycle describes the movement of water on Earth. Water in oceans and lakes evaporates and turns into water vapor. This water vapor condenses and forms clouds which produce precipitation. Precipitation falls all over the Earth's surface. The water eventually comes back to the oceans through run-off. Which steps in the water cycle carry water out of an ocean and into a freshwater lake?A. Evaporation and precipitationB. Rivers and streamsC. Underground tunnelsD. Condensation and run-off Sixty less than ten times ten Aque fraccin es equivalente 40 which population is most likely to increase as a result? A. deerB. mouseC. owlD. Hawk Simplify the fraction below.35/4 a. Draw a rectangle with anarea of 39 squares, andperimeter of 32 units.a 3. What do cells create that help them do their job?I (GIVING BRAINLIEST!!)Read the excerpt from the drama The Snow Monster:A fire crackles inside a cozy cabin. Reuben and Bailey sit close by on a sofa, peacefully sipping hot chocolate from large mugs. Another young boy, Quinn, bursts through the door.Quinn: (Huffing) You'll never believe what I've just seen!Reuben and Bailey turn quickly in surprise. Bailey spills some of his hot chocolate down his shirt.From whose point of view is the story told?A) An outside narratorB) A snow monsterC) The main character, BaileyD) The main character, Quinn McKenzie earns $15 per lawn mowed she also earned $10 for babysitting she earned 100 total, what does that look like in algebra form? Please help. (1) Find values of x and y for which ABCD must be a parallelogram. The diagram is not toscale. Explain what is meant by "there is no fixed place in the cosmosplease help WILL MARK BRAINLYIST put median or altitude for the first part What is a song that gets you in a mood? ;) The mass of a basket containing three balls was 3.64 kg. The mass of the same basket and five balls is 5.26 kg. Find the mass of the empty basket in kilograms?