which of these is best described as being on the arm of a spiral?
A. the moon within earth's orbit
B.earth within the solar system
C. the milky way galaxy within the universe
D.the solar system within the milky way galaxy

Answers

Answer 1
Answer:

C. the Milky Way galaxy within the universe.

Explanation:

In the event that you gaze upward on a dim, crisp evening, endlessly from city lights, you may see a wide band of blackout light extending above you, stiller than a cloud and sparkle with thickly stuffed stars. Deciphered from the Ancient Greek as "Milky Way" for taking after spilled milk on the sky, that band of light is the focal point of our cosmic system.  

At its inside, encompassed by 200-400 billion stars and imperceptible to the human eye and by direct estimations, lies a super massive dark opening called Sagittarius A* or Sgr A* for short. The Milky Way has the state of a winding and pivots around its middle, with long twisting arms encompassing a marginally protruding plate.


Related Questions

Which is the end result of cytokinesis?

Answers

The splitting of two cells

Answer:

The end result of cytokinesis is one cell physically divides into two cells.

Explanation:

The process of the M- phase of cell division, by which 1 cell divides into 2 cells is the cytokinesis. Cytokinesis takes place after the karyokinesis. It normally follows nuclear doubling. It occurs in both mitosis or in meiosis.

Plant cell cytokinesis is different from the animal cytokinesis because of cell wall rigidity. Plant cells forming cleavage furrow, cell plate arises a double cell wall for both daughter cells. Cytokinesis is the final stage of the cell division or cell cycle.

Thus, the end result of cytokinesis is one cell physically divides into two cells.

Scientists observed a rock stratum with fossils. If mollusks evolved before arthropods, where will their fossils be found?

Answers

Answer:

Fossils of mollusks would be found in lower strata than that of arthropods

Explanation:

Fossils are found in different layers of sedimentary rocks. The fossils of organisms that evolved earlier are found in the lower strata while those evolved later are preserved as fossils in the upper strata.  If mollusks evolved before arthropods, fossils of arthropods would be present in upper layers while those of mollusks would be found in deeper layers.

If mollusks evolved before arthropods, their fossils would typically be found in older rock strata, deeper in the Earth's crust, relative to the rock strata containing arthropod fossils.

In the geological principle known as the Law of Superposition, it is generally accepted that in undisturbed rock layers, the older rocks are found at lower depths, and the younger rocks are found closer to the surface. This principle is fundamental to the study of stratigraphy and the dating of fossils within rock layers.

So, if scientists observe a rock stratum with fossils and they know that mollusks evolved before arthropods, they would expect to find mollusk fossils in rock layers that are deeper (older) than the rock layers containing arthropod fossils. This stratigraphic order aligns with the concept of relative dating in geology, where the sequence of fossil appearances in rock layers can provide insights into the order of evolutionary events.

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How does each snp affect the amino acid sequence of the insulin protein?

Answers

Now that you have identified the location and nucleotide change associated with each SNP, you must next determine how these changes in the gene sequence alter the amino acid sequence of the insulin precursor protein. The wild-type nucleotide sequence of the insulin cDNA is shown below (top line). Below each triplet of nucleotides is the amino acid specified by that codon. (Nucleotide numbers are blue, and amino acid numbers are red.)

Patient 1: T125G- Val- Gly- missense
Patient 2: G220A- Ala- Thr- missense
Patient 3: G164C- Arg- Pro- missense
Patient 4: C309G- Tyr- stop- missense

When does recombination occur? at the two-strand stage, when the sister chromatids have been separated, and after dna replication at the four-strand stage, when each member of a homologous chromosome pair is composed of two sister chromatids, and after dna replication at the two-strand stage, when each member of a homologous chromosome pair is composed of two sister chromatids, and before dna replication at the four-strand stage, when each member of a homologous chromosome pair is composed of two sister chromatids, and before dna replication before dna replication?

Answers


Crossing over, or recombination, is the exchange of chromosome segments between nonsister chromatids in meiosis. Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.

Which phrases describe both Jupiter and Saturn? Check all that apply. (atmosphere contains hydrogen and helium) (has 50 or more moons) (has a density less than that of water) (has multiple rings) (has fast winds and storms)

Answers

The right options are;  

(atmosphere contains hydrogen and helium)  

(has 50 or more moons)  

(has multiple rings)

Jupiter and Saturn are gas giants that are made of hydrogen and helium gas. Jupiter is the largest planet in the solar system, and it is about 1300 times larger than planet Earth. Saturn is the second-largest planet. Jupiter and Saturn are surrounded by thousands of rings, and their speed of rotation causes strong winds, and huge cloud bands. They also have many satellites. Jupiter has about 62 moons, while Saturn has more than 30 moons.




Answer:

a, b, and d

Explanation:

edge2021

The ____________ cells are found mostly in the proximal and distal regions of the stomach.

Answers

Mucous cells.

This cells primarily produce mucus and are frequently clustered into small glands found usually in the  mucus membranes. They commonly lines the proximal and distal portion of the digestive tract. Large number of this cell can found in the mouth which moisten and keep the oral cavity moist. Stomach also have large number of mucous cells which help to protect the organ from the gastric juices it produce.


Vestibular senses, kinesthetic sense, and skins senses all make up:

Answers

Somesthetic Senses

There are three somesthetic senses, the skin, kinesthetic and vestibular senses. The skin is the organ that serves as protection against water loss and infectin. It transmits information like touch, pressure and temperature as it is collected by sensory receptors. 

kinesthetic sense- these tells about how our body is positioned or proprioception.  This transmit information based on the joint movement and how muscles are relaxed or contracted.

Vestibular Sense- the sense of balance. The main organs are the otolith and the semicircular canals in the ear.



The correct answer is Vestibular senses, kinesthetic sense, and skins senses all make up: Somesthetic senses  

Somesthetic senses are the sensation that is produced by the skin, joint, muscles, viscera and organs of balance. Merely looking at the word, the first part “soma” means body, esthetic, which is the second part, means feelings.

Further Explanation

We have three somesthetic sense system, they are the skin senses, the kinesthetic sense, and the vestibular senses

The skin senses: It plays the role of receiving and transmitting information from the outside into the central nervous system. The sensory receptors collect information about pressure, temperature, including pain. Simply put, the skin senses is the sensory systems used for processing touch, cold, pressure and pain.  

The kinesthetic senses: when your eyes are closed with your hand raised above your head, you surely know where hand is because there are receptors known as proprioceptors, which is responsible for telling you about joint movement or contracting. These special receptors are part of the body senses movement and tell you where your arms, hand, leg are located in relation to each other. This senses is known as kinesthetic senses. It is the senses of posture, muscle movement and strains on joint and muscle.

The vestibular sense simply refers to the sense of balance. This senses structure is present within the innermost chamber of the ear. Vestibular sense are structures in the air that tells you about the body position. Simply put, it refers to the senses of balance, acceleration and position in space.

LEARN MORE:

vestibular sense  https://brainly.com/question/2059296kinesthetic sense https://brainly.com/question/13100492skin senses https://brainly.com/question/4476845

KEYWORDS:

vestibular senseskinesthetic senseskins sensessense of touchsomesthetic sense

which type of wetland is constantly submerged in water and contains trees ?

Answers

A wetland refers to a different ecosystem, which is flooded by water, either seasonally or permanently, where the oxygen-free procedures exist. The main element, which separates wetlands from the other water bodies or landforms is the characteristic vegetation of aquatic plants, amended with the specific hydric soil.  

Swamp refers to a wetland ecosystem featured by mineral soils with poor drainage and by plant species dominated by trees. The swamps are found all through the world, most usually in low-lying regions with poor drainage adjacent to rivers that supply the swamp with water. Some of the swamps develop from marshes, which gradually fill in, permitting woody shrubs and trees to develop.  


... Swamp ... (Apex)

Through a process of _____, ADP is converted into ATP. dephosphorylation phosphorylation oxidation

Answers

Through a process of  phosphorylation, ADP is converted into ATP.

Answer:

Phosphorylation

Explanation:

Phosphorylation is one of the metabolic stages of cellular respiration. It happens only in the presence of oxygen (aerobic beings), which is necessary to oxidize intermediate molecules and participate in reactions to form the ATP molecule and produce energy.

In the early stages of cellular respiration (glycolysis and Krebs cycle), some of the energy produced in the breakdown of compounds is stored in intermediate molecules, coenzymes such as NAD + and FAD +.

This oxidation energy of coenzymes is used for ATP synthesis. For this occurs phosphorylation of ADP, ie it receives phosphate groups. This is why this process is called Oxidative Phosphorylation.

In dominnt/recessive inheritance patter,s the dominant allele is always expressed when present. the recessive allele is only expressed when the dominant allele is not present. use your observations from this activity to describe how codominant inheritance patterns differ from dominant/recessive inheritance patterns

Answers

in co-dominance pattern, both allele express. some part of the phenotype is formed by dominant while remaining part is expressed by recessive allele. as a result an intermediate form is formed.

What problem did scientists have with getting podophyllotoxin from the Himalayan mayapple for cancer treatment?

Answers

the Himalayan mayapple is not an easy plant to get hold of. Yet we humans keep trying, because the poisonous plant also naturally produces podophyllotoxin, a preliminary compound in etoposide—classed as an essential medicine by the World Health Organization (WHO)

Describe the importance of zircon as an age-dating tool

Answers

Zircon is a zirconium silicate mineral which is ideal for use in age-dating. The importance of zircon as an age-dating tool include; its good hardness (which means makes it resistant to metamorphism, mechanical and chemical weathering), it is easy to chip, it undergoes radioactive decay and leads to damaged crystals, it is commonly found at many localities, and it has a very high lead versus uranium ratio which is used to determine the age of the rock.

Answer:

Explanation:

Zircon has large amount of Uranium and very restricted amount of lead. It is very essential in Uranium lead dating. The features which make it essential for U-Pb dating are as follows:

a) Zircon is very stable molecule and it is highly resistant to high temperature and pressure. Also it has the highest blocking temperature. It is chemically inert and is not affected by weathering

b) It has a special characteristics – if left at room temperature, radio dating can destroy its strong structure but when  exposed to high temperature the radio dating becomes self-annealing.  

A cuticle occurs on the surface of organisms of many phyla and appears to be an advantageous feature. why have higher organisms not retained this structure?

Answers

While the cuticle has several advantages such as protection, they do not confer much advantage to larger eukaryotes. This is because of their limiting factor to growth (size). The cuticle would also restrict development of different skin structures such as fur.  Additionally, while the cuticle provides leverage for muscular movements on arthropods, nematodes, and flatworms, it is not necessary for larger animals since the same function is rendered by the endoskeleton.






What is the role of ATP synthase in photosynthesis?

Answers

Answer:

It uses the potential energy of flowing hydrogen ions to make ATP

Explanation:

Answer: it uses potential energy of flowing hydrogen ions to make atp

Explanation:

in which part if the cell is chorophyll found

Answers

i dont quit know off the top of my head sorry 

Answer:

cytoplasm

Explanation:

Which does not contribute to triglyceride digestion?

Answers

The correct answer is lipase activity in the large intestine.
Triglycerides are the main components of body fat and human skin oils. Lipases are enzymes which break down the fats or lipids in the body. They are responsible for the digestion and general processing of triglycerides. There are several different lipases in the human body, pancreatic lipase acting in the small intestine, hepatic lipase, lipase acting in the endothelium and lipase in the bile acid. 

The growth of plants in some Arctic lakes has increased significantly in the past 150 years. Scientists attribute this increase in plant growth to the increase in surface air temperatures on Earth, also known as global warming. Which of the following best explains how global warming can cause an increase in plant growth in Arctic lakes?

Answers

I'm assuming there are options? I would go for one that follows the idea of warmer water = extended growth periods & a higher likelihood of seeds spread by traveling animals to take root.

Increasing air temperatures can cause an increase in the growing season of Arctic plants.

A 9-year-old child presents to a school nurse with complaints of arm and leg pain. upon assessment, the nurse identifies numerous purple to yellow ecchymotic areas. when asked, the child says that the bruises are the result of "being in trouble at home." which action by the nurse is most appropriate?

Answers

Answer: Contact the authorities immediately

The nurse should objectively document her assessment that entails description of physical findings of abuse in the medical record and she have a duty to report cases of actual or suspected abuse in the child to the authorities. In addition, the nurse must also provide appropriate treatment to the child like giving cold compress or pain reliever.

What conditions created the numerous fossils that make up the Burgess Shale?

Answers

The answer is : Mudslides instantly buried marine organisms in sediment.

( I got this right on a quiz ) (^○^)

Analyze and conclude 7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why. 8. explain how you were able to use your knowledge of how different types of blood react with anti-a, anti-b, and anti rh antibodies to determine the blood types of the four samples. 9. if a person has type a blood, he or she would have antibodies for what blood type? 10. why is type o negative blood known as the universal donor? why is o positive not a universal donor?

Answers

7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why.
It can't be answered because you didn't put the sample test result


8. explain how you were able to use your knowledge of how different types of blood react with anti-a, anti-b, and anti Rh antibodies to determine the blood types of the four samples.
If the blood react with anti-a, then the blood must not have A antigen
If the blood react with anti-b, then the blood must not have B antigen
If the blood react with anti Rh, then the blood must not have Rh antigen
Based on the antigen, you can conclude the result as:
react with anti A= blood type B
react with anti B= blood type A
react with anti A and anti B= blood type O
react with anti Rh= Rh-
not react with anti Rh= Rh+

9. if a person has type a blood, he or she would have antibodies for what blood type?
Type A blood has antigen A. So that person should not have anti-A antigens. 
The person should have anti-B antibodies because it was a foreign object to him. Depends on the Rhesus type, he can have Rh antibodies too.

10. why is type o negative blood known as the universal donor? why is o positive not a universal donor?

Type O blood doesn't have antigen-A or antigen-B. That means the blood cells won't trigger any reaction on Type A, B, AB, or O blood. Negative rhesus also means that the blood is safe for Rhesus negative or Rhesus positive type. 

Positive O blood type has rhesus antigen, so it will trigger a reaction in Rhesus negative type. 

The blood types of the four samples were determined on the basis of the anti-factor present. The condition of each of the blood samples are given below:

If the blood sample reacts with anti-a, then the blood sample must not have an antigen A.If the blood sample reacts with anti-b, then the blood sample must not have an antigen B. If the blood sample reacts with anti-Rh, then the blood sample must not have antigen Rh.

Based on this, it may be concluded the result as:

Blood reacts with anti-A possess Blood group B.

Blood reacts with anti-B possess Blood group A.

Blood reacts with anti-A and anti-B possess Blood group O.

What do you mean by Rh-antigen?

Rh-antigen may be defined as the transmembrane proteins that are expressed at the surface of erythrocytes.

If a person has Blood type A, he or she does not have anti-A antigen and possesses anti-B antibodies. This is because the anti-A antigen is a foreign substance for their body. Due to the presence of the Rh factor, the O-negative blood type is known as the universal donor because it does not have positive Rh to stimulate any abnormal reaction in the body, while O-positive has the Rh factor which stimulates or triggers various abnormal reactions.

Therefore, it is well described above.

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The number of frogs in a swamp ecosystem increased sharply. Soon, the frogs exceeded the carrying capacity of the ecosystem. How will this situation affect the ecosystem?

Answers

Each time the frog population increases, they’re swamp will be decreasing. Resulting in lack of food due to too much frogs in one swamp.

Answer:

b

Explanation:

The frogs will have greater competition for resources.

Microorganisms that cause disease are classified as _____.
A.pathogens
B.inorganic materials
C.thermal pollutants
D.organic materials

Answers

C is the answer, I believe 

Answer:

pathogens

Explanation:

Theory 1 what caused the giraffe neck to become longer

Answers

fossils are found of giraffes with short necks.
Lamarck believed the giraffes stretched their necks and passed it to their offspring
necks grew longer due to stretching.
giraffes need long necks for food and evolution provided it to them

The nurse finds that a patient has a blood pressure of 140/90 mm hg and has constricted bronchioles. which drug regimen will ensure the patient's safety?

Answers

There are choices for this question namely:

Carvedilol
Betaxolol
Acebutolol
Propranolol
Metoprolol

The correct answers are "betaxolol", "acebutolol",and "metoprolol". These drugs are from the class called beta blockers as they inhibition the action of beta receptors in the heart leading to a decrease in heart rate and blood pressure. There are also beta receptors in the bronchial tree, an inhibition of which will lead to bronchoconstriction.

Betaxolol, acebutolol, and metoprolol are cardioselective beta blockers and only blocks the beta receptors located in the heart. Carvedilol and propranolol are non-selective beta blockers that can cause bronchoconstriction which is contraindicated in patients with asthma.

What is the greiss test? In forensic science?

Answers

It is to test for nitrates in a substance, mainly testing for explosive residues
Hello,

Here is your answer:

The proper answer to your question is that it is "used to detect the presence of nitrite ion in solution. This test is used widely for the detection of the ion solution".

If you need anymore help feel free to ask me!

Hope this helps!

The finches of the Galápagos Islands changed over time as insects became more plentiful.

Answers

directional selection

Answer:

C) Directional selection

and here are the rest of the answers

The picture below shows a floodplain alongside a river channel. A floodplain is a flat landform created by deposition on the bottom of a wide river valley.
Over time, a river gradually shifts its position back and forth across a valley bottom. As it shifts, it drops sediment to gradually build up a flat floodplain.

As the landform's name implies, another process plays a role in floodplain formation. Which of the following describes this process?Glaciers move through a river valley every winter and flatten out the landforms.

 A. Glaciers move through a river valley every winter and flatten out the landforms.

 B. A river may flood its valley and form a permanent inland sea.

 C. Acid rain weathers large rocks until they form a broad, flat plain.

 D. A river floods over its channel banks and deposits sediment on the wide valley bottom.

Answers

The appropriate answer is D. a river floods over its channel banks and deposits sediment on the wide valley bottom. 

Flood plains usually develop along the lower course of the river. The lower course has a gentle gradient and so the flow of water is not fast and therefore the bed load of the river gets deposited. Rivers carry materials such as boulders, pebbles, gravel, sand, silt and clay. The larger size materials will get deposited upstream while the finer material will travel to the lower course. 
The glacier melt each year increases the volume of the river so it will overflow its banks and deposit materials in layers on the flood plains. Materials on the flood plain are usually fine such as sand and silt. 

Answer:

D. A river floods over its channel banks and deposits sediment on the wide valley bottom.

how are the bones of the cranium held together?

Answers

The cranium bones are held together by fixed joints called sutures.

Hope this helps!

-Payshence xoxo

One characteristic of a lagoon is often: concentrated salt deep-sea fossils glacial till turbidity currents

Answers

One characteristic of a lagoon is often: concentrated salt.
concentrated salt. its oddysseyware question

Surprising new evidence has shown that, in some cases, environmental factors can modify chromosomes in such a way that changes the expression of genes without changing genes themselves or any part of the dna sequence. these modifications are called epigenetic effects. epigenetic effects can sometimes even be passed from generation to generation. in what way would this kind of "inheritance" be an exception to mendel's laws?

Answers

According to Mendel's law, the effects of our environment are not passed on to the next generation

(In classic Mendelian inheritance, environmental effects are not passed on to the next generation)
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