Explain the differences in appearance among normal spiral, barred spiral, elliptical, and irregular galaxies

Answers

Answer 1

Spiral galaxies are generally classified as galaxies that are circular in nature, with a bright nucleus that is enclosed by a thin outer disc. Normal spiral galaxies and barred spiral galaxies differ in appearance because normal spirals have 'arms' that emanate from the nucleus (which looks like a sphere that has curved arms coming out of the nucleus center), while barred spirals have bars (bright line features) that go straight through the nucleus, with arms that unwind from the ends of the bar. Elliptical galaxies look like very bright stars - they are shaped like elongated spheres, emanate a lot of light (but the brightness is concentrated in the center and dissipates the further out from the center you go), and vary in size. Irregular galaxies are classified as such because they don't fit into either the spiral or elliptical galaxy groups. They have a wide variety of shapes and sizes, and have no inherent regular or symmetrical structure.

Related Questions

A child receives frostbite on the tips of several fingers. your immediate action would be to

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Bring your child indoors immediately.Remove all wet clothing. Wet clothes draw heat away from the body.Immerse chilled body parts in warm (not hot) water for 20 to 30 minutes until all sensation returns. Don't let your child control the water temperature during rewarming. Numb hands won't feel the heat and can be severely burned by water that is too hot. Body heat also can be used to rewarm.Don't use heating pads, stoves, fireplaces, or radiators to rewarm because the affected skin can be numb and easily burn.Call your doctor if sensation does not return or there are signs of frostbite and/or hypothermia.

What are the prey and what are the predators in the predator-prey relationship on isle royale?

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The predators are wolves and the prey are moose. Their relationship is predation in which wolves eat moose. Please mark Brainliest!!!

Oxidative phosphorylation is also known as

1. Chemiosmosis
2. Glycolysis
3. Fermentation
4. Electron transport chain

Answers

4. Electron transport chain

4 is the answer
hope it helped!

Zoos are turning to video cameras and other remote observation to keep an eye on the animals.
a. True
b. False

Answers

The answer is a. True

Answer:

true

Explanation:

PLEASE HELP WILL GET FAILING GRADE IF I CAN'T FINISH THIS ASSIGNMENT!!!

A. Click on the link here to learn more about the Great Salt Lake

B. Answer the following questions:

1. Describe 3 abiotic conditions (depth, salinity, temperature, etc.) of the Great Salt Lake.(3 points)

2. Explain how the 3 abiotic factors you listed in #1 change depending on the time of the year (winter vs. summer). (3 points)

3. Explain how the abiotic conditions affect the life cycle of the brine shrimp (i.e. hatching, reproducing, etc.) (2 points)

4. Limiting factors are resources or other factors in the environment that can lower the population growth rate. List at least two limiting factors in the Great Salt Lake and explain why each one can be limiting. (2 points)

Answers

1. Depth: The water level in the Great Salt Lake fluctuates from year to year. Water levels drop and salinity increases when less water flows into the lake than usual. Not only that, but the wetlands dry up and the shoreline recedes. The reason the shoreline shifts so dramatically is because it sits at the bottom of a broad and relatively flat basin. For a visual example, think of pouring water into a plate versus a bowl.
Salinity: This Great Salt Lake has a high mineral content, as most terminal lakes are, which means that it is quite salty. Even the fresh water flowing into the lake contains small amounts of dissolved minerals. As water evaporates from the lake, the minerals stay behind. As a result, these minerals have accumulated to very high levels because they have been left behind for thousands of years. The Great Salt Lake is between 3.5 and 8 times saltier than the ocean. However, the organisms that survive in such saline conditions have adapted to their surroundings through special features.
Temperature: The Great Salt Lake has a very shallow depth, with an average of 14 feet deep and a mere maximum of 33 feet. This means that a lot of the surface area is exposed to the air, and is at the mercy of its seasonal temperature fluctuations. In the summer, rise to more than 80 degrees Fahrenheit while falling to below freezing in the winter.
2. Depth: Salinity drops and lake levels rise during high precipitation years. Wetlands get covered by salt water, and the shoreline expands, sometimes destroying wildlife habitats and killing sensitive vegetation.
Salinity: Changes in lake elevation are accompanied by changes in salinity. The salinity in the lake decreases as incoming fresh water dilutes the salt water. This happens during the wet years. During dry years, however, salinity increases as continued evaporation removes fresh water.
Temperature: Because of the lake's salt high content, the water doesn't usually freeze. However, as the temperature drops during the winter, less saline zones freeze solid, and most of the lake turns into a vivid pea-soup green color. In mid-March, temperatures begin to rise again as brine shrimp begin hatching. By late April, juvenile, and adult brine shrimp fill the water, serving as food for migrating and breeding birds.
3. Brine shrimp are smaller in highly salty water and larger in less salty water. Also, salinity levels also affect the rate of sexual development. Higher salinities produce adults who reach maturity quicker but are shorter in length. As salinity increases, the abdomen becomes longer relative to body length. Low salinity may also cause cysts to crack prematurely, as well as allowing other competitors into the ecosystem. High salinity results in offspring that develop quickly but are smaller and have a relatively longer abdomen. In short, effects of abiotic conditions on brine shrimp are development rate, the rate of sexual maturity, the overall length of the abdomen, amount/type of food available, cyst density and location.
4. One limiting factor of brine shrimp are predators: corixids that consume brine shrimp, grebes that consume brine shrimp and their cysts, and humans that commercially harvest brine shrimp cysts. Another limiting factor for brine shrimp is cooler temperatures. They are much more productive in warmer water and consume more phytoplankton. However, when the lake water temperature is cold, the shrimp population tends to decline.

Carlos is a healthy but sedentary college student. he weighs 175 pounds. about how many grams of protein should he consume each day?

Answers

Carlos will have to consume about 63 gram of protein per day.
The dietary reference intake of protein is 0.8 gram of protein per kilogram body weight or 0.36 gram per pound. Carlos is 175 pounds in weight, so he is going to need 0.36 * 175 = 63. Thus, Carlos needs 63 grams of protein per day.

All living things are made of prokaryotic and eukaryotic cells which is found in both cells

Answers

Prokaryotic cells are cells without a nucleus. The DNA in prokaryotic cells is in the cytoplasm rather than enclosed within a nuclear membrane. Prokaryotic cellsare found in single-celled organisms, such as bacteria, like the one shown in Figure below. I hope that helped! :)

Describe the stages of photosynthesis. use the terms thylakoid, light-dependent reactions, and light-independent reactions in your answer.

Answers

Final answer:

Photosynthesis has two stages, the light-dependent reactions that generate energy via sun absorption in the thylakoids, and the light-independent reactions (Calvin cycle) that use this energy to produce sugar in the stroma.

Explanation:

Photosynthesis occurs in two key stages: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle). The light-dependent reactions take place within the thylakoid membranes of the chloroplasts, and their role is to absorb energy from sunlight and convert it into stored chemical energy, resulting in the formation of adenosine triphosphate (ATP) and the reduction of NADP+ to NADPH. These are the energy carriers.

Subsequently, the energy stored in ATP and NADPH powers the Calvin cycle. This light-independent reaction takes place in the stroma of the chloroplasts and involves the fixation of atmospheric CO₂ into sugar molecules. The ATP and NADPH generated by the light-dependent reactions provide the energy for these reactions.

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Cells that synthesize the organic components of the bone matrix are called

Answers

Osteoprogenitor cell. A mesenchymal stem cell that can undergo mitotic division and differentiate into an osteoblast.

If an animal's internal system determines that there is too much water inside it, how will it likely respond to maintain homeostasis?
A.
It will expel the excess water as urine.
B. It will increase heat production.
C. It will constrict bloodflow to the arms and legs.
D It will release the hormone glucagon.

Answers

Answer: A. It will expel the excess water as urine.

Homeostasis is the natural phenomena which describes the fact that how an organism maintains it's internal environment with respect to the changes that occur externally. The animal's internal system should release the urine in order to expel out excess water inside it. The excretory system of the organism has to work efficiently in order to expel out the water so as to maintain the homeostasis.

Answer:

It will expel the excess water as urine.

Explanation:

Homeostasis is the dynamic regulation and balance of an organism's internal environment to maintain conditions suitable for survival.

In most animals, when excess water is in their systems, it will simply be removed from the body as urine.

Patients presenting themselves to a hospital emergency department with acute medical or surgical problems should __________.

Answers

They should be treated as any other patient.

Final answer:

Patients with acute conditions in the emergency department should receive comprehensive care, aided by EHRs, secure in the knowledge that privacy is maintained and that psychiatric emergencies are managed with due diligence. Clarification is crucial when describing emergency department scenarios for authenticity. Diverse medical teams play a significant role in both outpatient and inpatient emergency care.

Explanation:

Patients presenting themselves to a hospital emergency department with acute medical or surgical problems should receive immediate and comprehensive care, which includes care before, during, and after surgical, therapeutic, diagnostic, and obstetrical procedures. In scenarios where patients are unable to communicate due to the severity of their condition, such as in an accident, Electronic Health Records (EHRs) play a crucial role by providing vital health history information this enables healthcare professionals to make faster, more informed decisions regarding emergency care.

An emergency room doctor may discuss the patient's treatment in the presence of a friend if the patient allows this friend into the treatment room. Furthermore, nurses evaluating patients in a psychiatric emergency must consider two key components to provide appropriate and safe care. Safety is always a priority, and protocols set by the institution should be followed.

When delivering a presentation on medical scenarios in an emergency room, it's important to clarify whether the described situation is hypothetical or based on actual observation. If chronic conditions or symptoms are present, individuals should be under the care of a healthcare provider who can advise on suitable activities. In cases where a patient poses an imminent threat to themselves or others, hospitalization may be necessary. Lastly, a diverse healthcare team, possibly including specialized physicians such as cardiologists, as well as nurses and other healthcare professionals, is involved when a patient is referred for outpatient or inpatient emergency care.

The type of bone that has the highest turnover is:

Answers

A Cancellous bone also known as the trabecular spongy bone.

Which clinical manifestation occurs in a client with vasopressin deficiency?

Answers

It occurs polyuria. Polyuria is, in other words, to urinate a lot, abnormally. If the patient drinks enough water to compensate the loss of it by urination, then the outcome is not as severe. If the patient does not take enough water, dehydration and hypernatremia take place and blood pressure increases and several other complications.

Describe what happens at the elongation stage of transcription.

Answers

In the elongation phase, RNA polymerase perform one twist of DNA and as resault of that chains are being seperated. One of the chains serves as a matrix according to which the RNA polymerase is puting complemetary nucleotides of RNA in the 5'-3' direction. The enzyme RNA polymerese goes along the DNA chain and perform repairs.

A flower's sepal is part of the corolla.
True/False?

Answers

SOS:

The answer is FALSE!

Hope this helps!

Final answer:

The statement is false; the sepal is not part of the corolla but, together with the petals as part of the perianth, serves to protect the bud and attract pollinators.

Explanation:

The statement that a flower's sepal is part of the corolla is false. In flower structure, the sepals and petals are distinct parts. The sepals make up the outermost whorl of the flower known as the calyx, which typically appears green and serves to protect the flower bud before it opens. The corolla is the collective term for all the petals of a flower, usually found just inside the whorl of sepals. Petals are often bright and colorful, serving to attract pollinators. Sepals and petals together form the perianth, with the function of protecting the flower and aiding in pollination.

Alternate forms of a gene that lead to alternative traits are called

Answers

The answer is alleles. In addition, the phenotype of an organism is the physical look resulting from the expression of the genes present. The principle of segregation states that substitute alleles for a trait discrete from one another throughout gamete formation and keep on distinct. A diploid organism that has two alike alleles for the same trait is named homozygous for that particular trait.

Answer:

It's an allele

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Explanation:

How does the enzyme dna ligase contribute to dna replication?

Answers

DNA ligases close nicks in the phosphodiester backbone of DNA. Biologically, DNA ligases are essential for the joining of Okazaki fragments during replication, and for completing short-patch DNAsynthesis occurring in DNA repair process. There are two classes of DNA ligases.

Why is is a good idea to wait at least an hour between eating and exercising?

Answers

If you do not wait at least an hour between eating and exercise you could possibly cramp up or you could start to feel sick. If you eat a tuna sandwich and then you start doing jumping jacks, your stomach is going to flop and you are going to end up with a eaten tuna sandwich on your floor.

In eukaryotes, the components of the electron transport chain are located in the ____. see section 9.5 ( page 201) .

Answers

In eukaryotes the components of the electron transport chain are located in the INNER MITOCHONDRIA MEMBRANSE'
Electron transport chain occur in the mitochondria and is the process by which ATP molecules are produced inside the cell. ATP is the energy currency of the cell, it used by all cells to carry out their metabolic processes.

Process in which one strain of bacteria has been changed into another

Answers

That is called transformation.

A nurse is admitting a client who has a leg ulcer and a history of diabetes mellitus

Answers

Cardiovascular heath

The first step to cultural competency by a nurse is to: a. understand how a health care delivery system works b. develop a frame of reference to traditional health care practices c. identify the meaning of health to the patient d. understand your personal heritage and it's basis in cultural values

Answers

D. Understand your personal heritage and it's basis in cultural values

The first step to cultural competency by a nurse is to understand your personal heritage and its basis in cultural values (option d). This foundational understanding of oneself is crucial in being able to recognize and respect the cultural backgrounds of patients, leading to more personalized and respectful care.

Cultural competence is a critical aspect of nursing care, especially as the U.S. population becomes increasingly diverse. Cultural competence involves awareness of one's own heritage and understanding how that shapes perceptions and attitudes towards different cultures. By understanding their own cultural background, nurses can begin to foster cultural humility, which is essential for developing a respectful and effective nurse-patient relationship. Recognizing cultural influences in healthcare, such as beliefs around end-of-life care, nurses can tailor their communication and care strategies to meet the individual needs of each patient. Understanding one's own biases and culture is the first step toward achieving this. Professionals should engage openly with patients to learn about their cultural values and to provide care that honors diverse traditions and practices, ensuring comfort and respect in their final hours.

Which drug can cause weight gain, acne, high blood pressure, and liver and kidney tumors?

Answers

Alcohol and marijuana

Illicit drugs like marijuana and alcohol can cause weight gain, acne, high blood pressure, and liver and kidney tumors

What are side effects of illicit drugs?

Illicit drugs are substances that are not only illegal but also highly addictive. Some examples of illicit drugs are heroin, marijuana, and methamphetamine. Those between the ages of 18 and 25 have the highest prevalence rates for the usage of illegal drugs.

Alcohol consumption is associated with an increased risk of developing high blood pressure, heart disease, stroke, liver disease, and digestive issues. Breast cancer, cancer of the mouth, throat, and esophagus, cancer of the voice box, cancer of the liver, colon, and rectum cancer. The immune system becomes more compromised, hence increasing the likelihood of becoming ill. Drinking alcohol disrupts the normal function of the kidneys, which results in a decreased capacity for the organs to filter blood.

Marijuana use can have a negative impact on a person's memory and cognitive function, as well as create adverse consequences on the cardiovascular system, such as high blood pressure. Using marijuana for an extended period of time can make respiratory issues worse.

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A patient with atrial fibrillation is receiving warfarin therapy. the patient is also prescribed ezetimibe. the nurse would instruct the patient to watch for:

Answers

In this case, the nurse would inform the patient that it is important to watch for any sign of blood showing up in the stool or urine. Ezetimibe is a drug that works to decrease the absorption of cholesterol in a person's small intestine. It is especially useful for patients who are not able to find success with statins alone.

which of the following is a invertebrate animal
A) goldfish
B)horse
C)turtle
D)grasshopper

Answers

Inveterbrate would be a grasshopper

Answer: D

I hope this helps and have a wonderful day filled with joy!!

What is the correct term for a body of water that is devoid of oxygen

Answers

Dead zones are low-oxygen, or hypoxic, areas in the world's oceans and lakes

(answer is dead zones)

I'm pretty sure it is hysterical

True or false? on average, 20% of the emergency room patients at greenwood general hospital lack health insurance. in a random sample of 4 patients, the probability that only one patient will be uninsured is 0.4096.

Answers

To solve this, we use the binomial probability equation.

P = [n! / (n – r)! r!] p^r * q^(n – r)

where n is the total number of sample patients = 4, r is the number of uninsured patients = 1, p is probability of being uninsured = 0.20, q is 1 – p = 0.80

Calculating for probability P:

P = [4! / (4 -1)! 1!] 0.20^1 * 0.80^(4 – 1)

P = 0.4096

Answer:

True

Select all the most common elements which bond to carbon. 1. Hydrogen 2. Nitrogen 3. Sulfur 4. Sodium 5. Potassium 6. Magnesium 7. Oxygen

Answers

Final answer:

The most common elements that bond to gcarbon are hydrogen, nitrogen, sulfur, and oxyen.

Explanation:

The most common elements that bond to carbon are hydrogen, nitrogen, sulfur, and oxygen.

Hydrogen: Carbon commonly forms four chemical bonds with hydrogen to produce organic molecules.Nitrogen: Carbon forms three bonds with nitrogen, resulting in the formation of various nitrogenous compounds.Sulfur: Carbon can bond with sulfur to create a wide range of organic compounds.Oxygen: Carbon forms two chemical bonds with oxygen, leading to the formation of carbon-oxygen double bonds and other organic molecules.

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Answer: The most common elements which bond to carbon are:

Nitrogen

Oxygen

Hydrogen

Explanation: Hope this helps <3

Secondary succession occurs in an area where the community has been destroyed and the soil has been _____.

Answers

i believe the blank space is preserved :)

A chronic nervous system disease characterized by progressive muscle rigidity and involuntary tremors is called:

Answers

Parkinson's Disease which causes your muscles to not be able to relax and causes tremors.

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