Which phrase best defines a galaxy?

Answers

Answer 1

Answer:

Tightly packed group of older stars large grouping of more than two stars loose, disorganized star cluster held together by gravity large collection of stars, gas, and dust held together by gravity

Explanation:

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Answer 2
Answer: Large collection of stars, gas, and dust held together by gravity. Explanation: The name galaxy has been derived from the word galaxies which is a Greek word meaning milky.

Related Questions

Eclispe of the Sun

(b) Based on the diagram shown above, what can be observed on the surface of the globe?​

Answers

Answer:

ANNULAR SOLAR ECLIPSE

Explanation:

BECAUSE THE SHADOW OF THE MOON DOES NOT EXACTLY REACH THE EARTH,THERE WILL STILL BE SOME LIGHT REMAINING

Something that transmits some, but not all, of the light that hits is called:
A. Opaque
B. Translucent
C. Transparent

Answers

Answer:

its B translucent

Explanation:

because opaque cannot and transparent all

the answer is translucent

A scientist observed that penguins move efficently through water.the scientist makes a that if a boat is designed with a propulsion system that moves like a penguin, then the boat will be more efficient than traditional boats

Answers

Answer:

i think it is its wont

Explanation:

What is a unique characteristic of stem cells that makes them important

Answers

The answer is (D) Stem cells develop into various other types of cells.

During the warm days of summer in the Arctic, mosquitoes breed exponentially. When winter comes, the population falls off severely due to a limiting factor.

What is the limiting factor in this situation?
-no vegetation
-more sunlight
-excess of food
-colder temperatures

thanks in advance!!

Answers

Answer:

colder temperatures

Explanation:

Why do you think invasive species are more of a problem in human altered biomes (anthromes) than they are in a biome that has not been altered by human activities?​

Answers

Answer:

invasive species are a problem both in anthropogenically altered and natural environments

Explanation:

An invasive species can be defined as a non-native species introduced into a new environment which then becomes abundant. Only in the US, it is believed that there are approximately 4,000 invasive species (some examples include the feral pigs, grey squirrels, European rabbits, etc.). In general, invasive species have a negative impact on the ecosystem, especially by displacing native species and thereby altering the trophic chain. In anthropogenically altered environments (anthromes), human beings are considered to be an invasive species.

Define aseptic. What does the prefix ‘a-‘ or ‘an-‘ mean?

Answers

Answer:

opposite

Explanation:

The prefix “a-” almost always means that a word means the opposite of its base

What was the reason NASA almost crashed a $200 million orbiter into Mars? Group of answer choices A conversion error between two measurement systems A miscalculation on the Mars' graviational pull A launch error The power went out

Answers

Answer:

A conversion error between two measurement systems

Explanation:

I need help with this question

Answers

Answer:

Carboniferous period.

Explanation:

if a part of small intestines is damaged how would that impact the digestion of food

Answers

Answer:

depends on the part

Explanation:

if the part is at the end of the small i testine then most of the digestion woul have aldready taken place. However at the centre or newr the centre the digestion will be hindered it may also lead to ulcers.

Suggest one safe way to observe the eclipse of the sun​

Answers

Answer:

there r eclipse glasses a way to observe eclipse of sun!

hope it helps!

Do you playing video games after school affect a students grade

Answers

Answer:

No, exercising something you enjoy does not affect a student's grade, if it is controlled.

Explanation:

Playing a couple of hours a day (1-3 MAX) will not affect a student's grade, but excessive playing will affect their grade negatively, as the video game will stay on their mind unconciously (most of the time) which will distract the student and prevents the student from thinking straight, regarding the fact that it could cause eye damage, and increases the chances of epilepsy.

No , as long as an student is still focused on what he/she needs to in school as well as out . He shall be find there is no rule that’s says you can’t have fun & be a good intellectual student .

Which of the following statements about eukaryotes is not true?A) They contain organelles like mitochondria, chloroplasts, the endoplasmic reticulum and the nucleus.B) They are usually 10 to 100 microns in diameter.C) They can be either unicellular or multicellular.D) They are also called archaea.E) All of the above are true of eukaryotes.

Answers

Answer: Option B, D and E.

They are usually 10 to 100 microns in diameter.

They are also called archaea.

All of the above are true of eukaryotes.

Explanation:

Eukaryotes are organisms that have nucleus and it is surrounded by nuclear envelope and membrane bound organelles in the cell cytoplasm.

They can either be unicellular or multicellular compared to prokaryotes that are Majorly unicellular.

They are not usually 10 to 100 microns because most eukaryotes are multicellular organisms and they are bigger in sizes visible to the eyes like fish, goat,humans.

Eukaryotes are not usually archaea because archaea is are Majorly prokaryotic organisms that are unicellular and have no nucleus.

Select the correct answer.
Robert owns a fertilizer manufacturing firm. His employees are constantly exposed to the hazards of the poisonous chemicals used for
manufacturing fertilizers. Robert makes sure that every employee of his firm follows a written document containing essential work practices,
procedures, and policies for employee protection from chemical hazards. Which document is Robert referring to?
Ο Α.
Occupational Safety and Health Act
OB.
Laboratory Standards
OC.
Health, Safety, and Environmental Policy
OD
Chemical Hygiene Plan (CHP)

Answers

Answer:

The answer is D.

Explanation:

I think the answer to this question is D because the employees are constantly exposed to poisonous chemicals. The Chemical Hygiene Plan (CHP) states " CHP is a written program stating the policies, procedures and responsibilities that protect workers from the health hazards associated with the hazardous chemicals used in that particular workplace."

Hope this helps!

Robert, who owns a fertilizer manufacturing firm have made some findings and these can be documented and referred as Chemical Hygiene Plan (CHP). Thus, the correct option is D.

What is Chemical Hygiene Plan?

The Chemical Hygiene Plan (CHP) is a written program which states the policies, procedures, and responsibilities which protect the workers from the health hazards which are associated with the hazardous chemicals that are used in that particular workplace.

Chemical Hygiene Plan includes list of several things which are hazard identification strategies, hazard controls, equipment inspection and maintenance protocols, employee training requirements, medical consultation and examination, containment equipment, and the procedures which require prior approval.

Therefore, the correct option is D.

Learn more about Chemical Hygiene Plan here:

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What are five classes of protein found in prokaryotic cell membrane?

Answers

receptor proteins, transport proteins, resperatory proteins, binding proteins, attachment point proteins

please look at (both pictures) and answer I need this fast please answer!!

Answers

a convergent earthquake

Which is a reason why meiosis is important to sexual reproduction? Meiosis allows a zygote to grow in cell number. Meiosis doubles the chromosome number in each cell. Meiosis allows for the exact duplication of cells. Meiosis allows for genetic differences between parents and offspring.

Answers

Answer:Its b

Explanation:hope this helps

Which of the following are final destinations of proteins directed to the secretory pathway? ▼endoplasmic reticulum ▼mitochondria ▼the plasma membrane ▼the outside of the cell▼ the nucleus ▼the golgi apparatus ▼lysosomes A. TRUE B. FALSE

Answers

Answer:

False, the final destination is the outside of the cell

Explanation:

The secretory pathway moves proteins to the cell membrane, where they are released to the extracellular medium. In this pathway, the proteins enter into the membrane of the rough Endoplasmic Reticulum (ER) in a cotranslationally way (i.e., during their synthesis in ribosomes). This pathway can be summarized by the following transporter activities: Endoplasmic Reticulum >> Golgi apparatus >> secretory vesicles (such as lysosomes) >> cell membrane, where proteins are finally released by exocytosis.

What are the errors in the table? Check all that apply.

ER should be in both animal and plant cells.
Golgi body should be in animal cells only.
Lysosomes should be in animal cells only.
Nucleus should be in plant cells only.
Ribosomes should be in plant cells only.
Vacuoles should be in both animal and plant cells.

Answers

Answer:

C

Explanation:

zombies is present only in animal

The diagram is a model of the structure of glucose. The structural formula of glucose, C6H1206, shows a ring of 5 carbon atoms and 1 oxygen atom. 4 carbons in the ring are each bonded to an -H and an -OH group in addition to 2 neighboring atoms in the ring. The fifth carbon is bonded to a CH2OH group. What structural feature does glucose share with larger carbohydrates? A. a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom B. the presence of double covalent bonds between carbon atoms C. strong bonds between carbon atoms that cannot be broken D. ionic bonds between carbon atoms and oxygen atoms

Answers

Answer:

The correct answer is :  A. a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom

Explanation:

Carbohydrates are the primary and major component of diet, these molecules give vitality to the body, predominantly by means of glucose, a fundamental sugar, which is an part of the starch and a fixing in different staple nourishment diet choices.  

the significant chemical formula of carbohydrates is (CH2O)n. It can be exhibited or express by the proportion of the carbon to hydrogen to oxygen which is 1: 2: 1 in the particles of starches. Starches are additionally arranged into three sub-sorts, that is, monosaccharides, disaccharides, and polysaccharides. The monosaccharides are the basic sugars, for instance, glucose.

Thus, the correct answer is :  A. a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom

Pelvic inflammatory disease commonly affects all of the following organs, except the:_________.
A) uterus.
B) ovaries.
C) urinary bladder.
D) fallopian tubes.

Answers

Answer:

C) urinary bladder

Explanation:

Pelvic inflammatory disease commonly affects all of the following organs, except the urinary bladder

Pelvic inflammatory disease commonly affects all of the following organs, except the urinary bladder. Option C is correct.

Pelvic inflammatory disease (PID) is an infection of the female reproductive organs. The most common cause of PID is a sexually transmitted infection (STI), such as chlamydia or gonorrhea. PID can also be caused by bacteria that normally live in the vagina.

The organs that are most commonly affected by PID are the uterus, fallopian tubes, and ovaries. The urinary bladder is not typically affected by PID.

Here are some of the symptoms of PID:

Pain in the lower abdomenFeverVaginal dischargePainful urinationBleeding between periods. Option C is correct.

To know more about the Fallopian tubes, here

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Sirius A is 8.6 light-years from Earth. What is this distance in Kilometers?

Answers

Answer: 81,362,880,000,000‬ kilometres

Explanation:

A Light year refers to the distance that light travels in a year.

Light travels at a rate of 300,000 km/s.

This means that in a year it travels;

= 300,000 * 60 seconds * 60 minutes * 24 hours * 365 days

= 9,460,800,000,000‬ km in a year

Sirius A is therefore;

= 9,460,800,000,000‬ * 8.6

= 81,362,880,000,000‬ kilometres from Earth.

Questions:
1. How is a cell membrane like the plastic bag in the experiment?
2. Define diffusion.
3. List two reasons why molecules will not diffuse into cells.

Answers

Explanation:

1. cell membranes are partialy permeable, only allowing passage to some certain molecules.

2. diffusion is the movement of molecules across partially permeable membrane down concentration gradient.

3. the molecules are too big to pass through partially permeable membrane. the concentration of the molecule might be higher in the cell than in the solution/surroundings.

Drag each of the following organs to the appropriate organ system. Labels can be used more than once if the organ is a major part of more than one system.
1. Brain
2. Stomach
3. Trachea
4. Pancreas
5. Blood vessels
6. Lungs
7. Ureter
8. Bones
9. Spleen
10. Thyroid gland
11. Ovary
12. Small intestine
13. Muscles
14. Pituitary gland
15. Kidney
16. Skin
17. Spinal cord
18. Heart
A. Endocrine
B. Integumentary
C. Skeletal
D. Muscular
E. Nervous
F. Cardiovascular
G. Lymphatic
H. Digestive
I. Respiratory
J. Urinary
K. Reproductive

Answers

Answer:

Nervous-brain as the components of the central nervous system,together with the spinal cord.

Digestive-Stomach as the components of the upper digestive or alimentary canal.It is for temporary storage and digestion of foods.

Small intestine where final digestion and absorption takes place

Respiratory-Lungs.-paired in mammals is for exchange of gases.

-Trachea as part of the upper respiratory system,conducts airways to the lungs

Reproductive-Ovary female reproductive organ for ova production

Urinary-Ureter for conducting urine to the bladder from the kidney to penis and orifice in females to the exterior.

Cardiovascular( the heart and the blood vessels)- heart the pumping organ into the blood vessels.

Endocrine-Thyroid gland for secretions of thyroid hormones -T3 and T4.

Pancreas for insulin and glucagon productions,and helps in digestion,

Integumentary-Skin,for protection of the body.

Lymphatic-Spleen.This forms the lymphatic system  for formation of un reabsorbed tissue fluids the lymph.

Skeletal-Bones for support and rigidity of the body,by attaching to the bones,

Muscular system-muscles for stability of the body in mammals.

Explanation:

Explain the difference between repetition and replication. plz

Answers

Answer:

Repetition: Doing something over and over/doing something repeatedly

Replication: Duplicating something/duplicating yourself

Explanation:

I hope this helps :)

Answer:

Repetition refers to performing multiple trials throughout an experiment.

Repetition reduces mistakes and increases one’s confidence in the results.

Replication refers to the ability of a process to be repeated by another individual.

When a scientist replicates another’s experiment, the experiment should produce the same results.

Explanation:

Plants and fungi were once classified in a single kingdom. Which similarity between plants and fungi led to this classification?
OOOO
their photosynthetic energy acquisition
their nonmotile, fixed body structures
their decomposer role in ecosystems
their predation on bacteria

Answers

Answer:

their photosynthetic energy acquisition

Explanation:trust me and thank me later

40. When a typical male speaker phonates, his vocal folds open and close
times per second.
Select one:
a. 2
b. 10
c. 125
d. 500
e. 1,000

Answers

Answer:

The correct answer is - option C. 125.

Explanation:

Phonates are the ability to produce or articulate the sound especially with the lp of the viba\ration by his or her vocal folds. When an individual vibrates his vocal folds or speaks the sound produces which is known as the phonation.

When a typical male speaker phonates, his vocal folds open and close

125 times per second.

The correct answer is - option C. 125.

Why are interactions between organisms important

Answers

It is important because if there is no iteration there would be no population or friends or biodiversity. We need talking in order to be diverse and help people and even evolve ourself s.

Can you see pores in the walls of diatoms?

Answers

Answer:

The simple answer is yes.

Explanation:

why might the nucleus be referred to as the brain of the cell​

Answers

Answer:

The nucleus is called the "brain" of the cell because it holds the information needed to conduct most of the cell's functions. Other molecules make proteins from that information on a regular basis - each moment of our lives

Hope this helps!

Other Questions
What is the rule for the transformation from the smaller polygon to the larger polygon? I, Edward, by the grace of God king of England, sent this decree to the reverend father in Christ William, by the grace of God archbishop of Canterbury, supreme Church leader of all England: Know that, because of the great number of people who died in the recent pestilence, those who survive see that masters need servants, which have become scarce, and so they now refuse to serve as workmen unless they receive excessive wages. That is why, I, considering the grave inconveniences that might come from the lack of such workmen, especially plowmen, and after consultations with the nobles and clergy of the realm, have decided that every man and woman of our realm of England shall be required to serve his or her lord at the wages that were provided five years ago, in the year 1346. The lords are entitled to keep their serfs. If any such serf, man or woman, who is required to serve their lord will not do so, they shall be immediately committed to jail. King Edward III of England, the Statute of Laborers, royal decree, 1351 The need for legal action to address the grave inconveniences that might result from the labor shortages described in the passage most likely resulted from the agrarian nature of medieval European economies and their reliance on coerced labor the agrarian nature of medieval European economies and their reliance on coerced labor A the inability of members of the nobility and other feudal lords to take direct legal action against their workers and serfs the inability of members of the nobility and other feudal lords to take direct legal action against their workers and serfs B the high social rank and economic standing of plowmen in medieval English society the high social rank and economic standing of plowmen in medieval English society C the presence of guild regulations prohibiting agricultural laborers from working more than a certain number of hours each wee Suppose you have two genetic variants of a large protein that differ only in that one contains a histidine (side chain pKa = 6.0) when the other has a valine (uncharged side chain).1. Which would be better for separation: gel electrophoresis or isoelectric focusing?A. Gel electrophoresis.B. Isoelectric focusing.2. What would you choose for the separation?A. At a pH of 6.0.B. At a pH above 6.0.C. At a pH below 6.0.D. At any pH value. Which of these sentences uses correct punctuation? Write the equation of a line that is parallel to y = 1/2 x + 5that passes through the point (2,6). A teacher raised a total of $135 for school supplies. He divides the money evenly among his 10 students. why is Rapid population growth called community health problem please help me 3. [tex] - \sqrt{49} [/tex]find each square root A homeowner considered having a new garage built and talked about the project with a contractor. In April, while the homeowner was on vacation, the contractor began building the garage according to the man's specifications. Work was complete by the end of May. In June, the homeowner returned from vacation and refused to pay for the garage. The contractor decided to file a mechanic's lien in July. Is the contractor entitled to a lien? When the percentage change in quantity demanded is numerically less than the percentage change in price, ceteris paribus, demand is: After independence, the Philippines struggled under the dictatorship of Please help! I will mark brainliest. Sketch the following graphs in order: HELP Why did Paul Revere and William Dawes ride toward Lexington and Concord on the night of April 18, 1775? They were warning the British that the Americans were coming to take their gunpowder. They were warning the town that the British were coming to attack. They were warning the British that the Americans were coming to attack. They were warning the town that the British were coming to take their gunpowder. what is the national flower for pakistan? Write an equation in slope intercept form that is parallel to y = 3x + 4 and goes through the point (-1,5) can a poem be a riddle usually a poem is to explain someone love or feeling for an object a hobby or a person but can a poem be a riddle? A hummingbird beats its wings up and down 60 times a second what is the frequency and period vienna earns $53 per week working part time at a bookstore. She makes $1 more for each book that she sells. The amount, A (in dollars), that vienna earns in a week if she sells b books is given by the following function. A(b)=53+bhow much does Vienna earn in a week if she sells 35 books? What is the distance from M(-1, 6) to N(11, 1)?Please show all work and not just the answers. Write 3.24 x 10-4 in standard notation.