Answers
Explanation:
Red-shift
Emission spectra
Light from a star does not contain all the wavelengths of the electromagnetic spectrum. Elements in the star absorb some of the emitted wavelengths, so dark lines are present when the spectrum is analysed. Different elements produce different patterns of dark lines. The diagram shows part of the emission spectrum of light from the Sun.
A gradient colour spectrum of the sun.
Spectra from distant galaxies
Astronomers can observe light from distant galaxies. When they do this, they see it is different to the light from the Sun. The dark lines in the spectra from distant galaxies show an increase in wavelength. The lines are moved or shifted towards the red end of the spectrum. This effect is called red-shift. The diagram shows part of the emission spectrum of light from a distant galaxy.
A gradient colour spectrum of a distant star.
Red-shift and speed
Astronomers see red-shift in virtually all galaxies. It is a result of the space between the Earth and the galaxies expanding. This expansion stretches out the light waves during their journey to us, shifting them towards the red end of the spectrum. The more red-shifted the light from a galaxy is, the faster the galaxy is moving away from Earth
Related Questions
9. Why is it not reasonable to think that all variables can be controlled?
I
Answers
Answer:
Any given experiment has numerous control variables, and it's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variables.
Explanation:
Many of the Mauryan Empire’s huge pillars originally were transported from quarries in __________ India.
A.
central
B.
eastern
C.
southern
D.
western
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
I think its A. Central. Sorry if im incorrect
Answer: B. Southern
Explanation:
Which organelle aids in the production and movement of proteins and other materials through the cell?Which accurately labels the lysosome?
Answers
Answer:
Hey
Explanation:
✴Endoplasmic Reticulum organelle aids in the production and movement of proteins and other materials through the cell.
From where do autotrophs obtain their energy?
Other organisms
O From fertilizers
Other decaying organisms
O The sun
Answers
Answer:
B
Explanation:
it's funni to be rog
Answers
Answer:
facts
Explanation:
kefka pfp go brr
Answer:
Ha
Explanation:
I'll give brainlist enginuity
You're with a team of conservationists who've been assigned to control the marsh mosquito. You can't use chemicals that might harm the valuable organisms that aboung in salt marshes. Plan a strategy that will limit mosquitos without endangering the marsh ecosystem.
Answers
I would make a spray that is not harmful to the environment, but instead it kills mosquitoes. If any other animals eats this, they will not die. It is for mosquitoes specificly.
How are breathing and cellular respiration similar? Both involve using ATP to fuel other chemical reactions. Both use oxygen and produce carbon dioxide. Both involve breaking down glucose to produce ATP. Both require water in order to take place.
Answers
Answer:
A. Both involve using ATP to fuel other chemical reactions.
Explanation:
Answer:
Both involve using ATP to fuel other chemical reactions.
Explanation:
Why is mitosis so important? 3 complete sentences
Answers
Answer:
Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells. During this process, it is essential that the daughter cells are exactly the same with the same copies of DNA.
Explanation:
Help, middle school science
Answers
Answer:
It's the second one because the rest are wrong
Answer:
They may be used to replace dead or damaged cells
Explanation:
when cells die or damage the body makes new cell to replace them and the process is called division
D. None of the above are correct.
32. A hypothesis
A. a list of independent variables used in a scientific experiment
B. an educated prediction of the outcome of a scientific experiment
C. the number of treatments applied to the organisms in an experiment
D. None of the above.
Answers
Answer:
B
Explanation:
trust
Answer:
B
Explanation:
A hypothesis is a prediction you make based off the evidence you currently have to figure our what your end result will be.
Fog will usually form if the temperature and _______ match.
Answers
Answer:
dew point
Explanation:
i looked it up but i could be wrong
dew point
Explaination:
how might the biotic and abiotic features change during different seasons?
Answers
Answer:
The biotic and abiotic features change during different seasons through various factors.
Explanation:
Biotic and abiotic factors are referred to as the living and non living components of the ecosystem respectively. An example of biotic factor include plants, animals and an example of abiotic factors are water, sunlight etc.
The biotic and abiotic features change during different seasons through various factors. Biotic factors in dry season for example will lead to a decrease in abiotic factors such as rainfall and increase in abiotic factors such as sunlight while leading to a decrease in biotic factors such as plants and animals through the lack of water vital for them.
Biotic factors in wet season for example will lead to a increase in abiotic factors such as rainfall and decrease in abiotic factors such as sunlight while leading to a increase in biotic factors such as plants and animals.
A section of one DNA strand has the sequence ACC GAG GTT. What is the sequence of the strand it binds to?
Answers
Answer:
UGGCUCCAA
Explanation:
Basically when you transcribe DNA into mRNA, you find the complementing base pair, for example if G is written in the DNA, the mRNA would show C, and if an A was in the DNA, a U would be shown. It is NOT THYMINE in RNA!! This changes to Uracil in RNA, and that is VERY important. The reason why it is flipped is because of the tRNA. So 3 mRNA nucleotides make a codon, and the tRNA are also in sets of 3, but are called anticodons. The tRNA is complementary to the mRNA strand, AKA the same as the DNA strand except with Uracil instead of Thymine. This is because Thymine breaks down in the presence of Oxygen and so is replaced by Uracil.
at what temperature are are particles more densely packed?
cold
warm
hot
Answers
what is a glycoprotein? and what is one of the uses of glycoproteins?
i'll mark you as a brainliest if you help.
Answers
Answer: it’s is proteins that are conjugated with a small number of monosaccharides or short typically branched chains of carbohydrates ( oligosaccharides). And one use of glycoproteins is they have something to do with immune system examples the molecules of as such as antibodies ( immunoglobulins) which they just interact with antigens.
Explanation: hope this help I take biology it can be tough.
Scenario 1
When you think of the American Southwest, you probably think of cacti, both big and small. If you were to
visit the American Southwest today, you might be disappointed with the lack of variation among cactus
species, especially right off the major highways. In 1926, Route 66 was the nation's first major highway to
allow visitors to visit the Southwest. Like many tourists, these visitors wanted to take home a memento of
their travels. Many people would pull over and begin looking for their own living souvenir. Since many of the
tourists did not have the necessary tools to extract a spiny cactus out of the soil, they usually had to make a
conscious decision about what type of cactus they should dig up. The cacti with too many spines were seen
as too difficult to dig out, and the visitors likely didn't have gloves to protect their hands. The cacti with too
few spines were seen as homely and were often overlooked. Therefore, the tourists found a cactus that was
between these two extremes. Over the last century, the phenotypic variation within these small cacti has
changed (at least in areas accessible by these highways).
Answers
Galileo and newton both study the night sky. Galileo study Jupiter and its moons. Newton study the gravitational force that held the planets in orbit. Which of these statements best explains why the two scientist propose different theories about the solar system?
a. both scientist had different interests.
b. both scientist lacked scientific evidence.
c. they wanted to be the first to discover new planets.
d. they wanted to contradict each other‘s theories.
Answers
Answer:
a. both scientists had different interests.
Explanation:
Newton focused in physics for the most part and the study of what we know now as Newton's laws
while Gallileo focused on planets and astrology
HELPPPPP :p
Explain how precipitation happens. Use complete sentences and give at least two supporting details.
Answers
Answer:
In a general aspect, humid and warm air moves to lower latitudes or in altitude, losing heat and getting colder. Its humidity condenses and causes precipitation. Depending on the air movement there are different kinds of rain.
Explanation:
At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. This occurs because solar radiation reaches the earth differently at different latitudes, resulting in big convective cells of atmospheric circulation: Hardley cell, Ferrel cell, and Polar cell.
A convective cell is the movement of the humid air among different latitudes. Air moves from higher latitudes to lower latitudes, getting warm, getting less dense, and ascending. As the air gets higher in altitude, it´s density and pressure decrease, so the air tends to expand with elevation in response to the reduced pressure. Gases in expansion experiment adiabatic cooling, losing caloric energy as their molecules move getting farther away from each other. As the air gets higher, it gets colder, and hence, denser. The result is that descends again. Humidity gets denser and precipitates.
• Rain is controlled by temperature on the earth´s surface, atmospheric global air circulation, the position of the mountains and oceans, closure to the oceans.
• There are different kinds of precipitations according to their origin.
i. Convective precipitation: These are the most typical ones. Air gets warmer and less dense, elevating in altitude with humidity. On the way, it starts to get colder, and the humidity condenses, resulting in precipitation. Depending o the degree of condensation, the precipitation might be in a liquid state (rain), semisolid-state (snow), or solid-state (hail).
ii. Frontal Precipitations: They occur when a polar front coming from higher latitudes collide with a warm front coming from lower latitudes, resulting in a strong rain. This is typical of grasslands or temperate forests (approximately 40 º latitude)
iii. Orographic Precipitations: They occur when humid wind ascends by a mountain range, causing its adiabatic cooling, condensing the humidity, and precipitating.
Darwin studied actual birds on the Galapagos Islands instead of using a simulation, as you did in this lab. Studying natural selection in the field can be challenging. List at least three possible challenges Darwin might have faced.
Answers
Answer:
1. Darwin did not know how genetic material passed from one generation to the next because Mendel's laws of heredity had not yet been formulated
2. Finches have many phenotypic adaptations that can not be observed easily
3. Phenotypic traits are expected to evolve slowly, thereby taking many generations
Explanation:
In the Galapagos Islands, Darwin observed that there were many varieties of finches that showed variation in the size and shape of their beaks. Darwin determined that finches' beaks evolved in response to environmental changes (finches' beaks were different in different islands). Darwin had several challenges to make this discovery. First, Mendel's laws of heredity had not yet been formulated, thereby difficulting the analysis of quantitative traits (in this case, finches' beak) which are the result of the combined action of many genes and the environment. Second, finches (as well as all species) possess many phenotypic adaptations, thereby difficulting the study of single traits in an evolutionary context. Finally, phenotypic changes are gradual and therefore descendence with modification cannot be easily recognized by observation in the field.
Answer:
Traits other than beak type might affect natural selection.
It could take many generations to observe adaptions to a population.
The environment may be complex and hard to study.
Changes in the environment may occur faster or slower than changes to the birds
The birds may be interdependent with other organisms that may change, too.
Explanation:
just took the quiz
this the sample
The neuromuscular junction (muscle contraction)
Label the picture?
Answers
Answer: not possible
Explanation: no picture
Please give the answer for this!
Answers
for the first picture the stimuluis is light and the respons is phototropism(the plant is oriented towards the source of the light)
for the second picture the stimulus is the signt and smell of the food. the respons is salivary secretion
Answer:
1.
Stimulus: The light
Response: The plant gets light energy required to function
2.
Stimulus: The food in the bowl
Response: The dog digests the food absorbing nutrients needed to continue operating.
Hope this helps, feel free to give brainliest :)
where is the dna located in the eukaryotic cell
Answers
Answer:
Nucleus
I did this and I think it was right
Answer:
nucleus
The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA.
List the features of reptiles that indicate that they are higher vertebrates than amphibians.
Answers
Answer: Top 5 Characteristics of Reptiles. Reptiles Are Four-Legged Vertebrate Animals. Most Reptiles Lay Eggs. The Skin of Reptiles Is Covered With Scales (or Scutes) Reptiles Have Cold-Blooded Metabolisms. Reptiles Breathe With the Aid of Lungs.
Explanation:
Which option distinguishes why Johnny refused to eat the pie in the following scenario?
Johnny is cutting fast food out of his diet and is increasing his fruit and vegetable intake an effort to
lose weight. At a family dinner, apple pie was served for dessert, but Johnny politely declined.
The baked apples contain more sodium and nitrates than whole, uncooked apples.
O The baked apples are more nutritious than uncooked apples, but this is offset by added sugar
The baked apples contain more carbohydrates and sugar than uncooked apples.
O The baked apples in the pie are a whole food, which contains more calories than processed.
Answers
Which systems interact to maintain homeostasis and send electrical signals through the body?
Answers
What is the coriollis effect
Answers
Answer:
The Coriolis effect is defined as how a moving object seems to veer toward the right in the Northern hemisphere and left in the Southern hemisphere.
Explanation:
Please give brainliest!
Enzymes are A.) Homogenous catalyst B.) Base catalysts C.) Acid Catalysts D.) Heterogeneous Catalysts,
Answers
Answer:
B
Explanation:
Answer:
i want to say acid catalyst, but dont put that as your answer yet.
Explanation:
Choose TWO human activities that can help to increase the biodiversity of the Amazon rainforest
A
creating more urban settlements
B
mining and resource extraction
C
increasing agricultural run-off
D
practicing sustainable agriculture
E
creating protected land areas
TI
introducing non-native species
Answers
Please mark me the brainliest ty
The two activities that can help to increase the biodiversity of the Amazon rainforest are as follows:
Creating more urban settlements.Increasing agricultural run-off.Thus, the correct options for this question are A and C.
What is Biodiversity?Biodiversity may be defined as the sum total of all the variety of living organisms that are present on the earth's surface. In a more simple sense, it is also characterized by the number of species of all living organisms exist on the earth.
Mining and resource extraction disrupts the quality and quantity of resources that living organisms utilize in order to enhance biodiversity. The introduction of non-native species utilizes all resources present in the area of native species and furnishes the process of competition. Creating protected land areas restricts the resources at specific parts/locations.
Therefore, the correct options for this question are A and C.
To learn more about Biodiversity, refer to the link:
https://brainly.com/question/11542363
#SPJ6
list three facts about the specific body system for endocrine system
Answers
Answer:
The endocrine system is a chemical messaging network. Endocrine glands secrete hormones, which are carried by the circulatory system throughout the body. The primary endocrine glands are the pituitary, hypothalamus, pineal gland, thyroid, parathyroid, adrenal, pancreas, ovary, and testis. Hormones maintain homeostasis in the body.
Explanation:
Hope this helps!
What kind of features would you expect to find in a transitional
fossil between Ichthyostega and Eusthenopteron?
Answers
Answer:
hope that help you
Explanation:
Fossils or organisms that show the intermediate states between an ancestral form and that of its descendants are referred to as transitional forms. There are numerous examples of transitional forms in the fossil record, providing an abundance of evidence for change over time.