Whose experiments demonstrated that, given the conditions on the primitive earth, biological monomers could arise spontaneously?

Answers

Answer 1
In the 1950's, biochemists Stanley Miller and Harold Urey, conducted an experiment showing several organic compounds could be formed automatically. They found that several organic amino acids had formed spontaneously from inorganic raw materials. 



Related Questions

What has a large flexible tail, four pairs of legs, two large claws, and is a highly prized shellfish all around the world?

Answers

The answer is the Alphaman banegan crawfish

Alphaman banegan crawfish has a large flexible tail, four pairs of legs, two large claws, and is a highly prized shellfish all around the world.

What is Crawfish?

Small freshwater crustaceans known as crawfish have a flavor profile that is comparable to that of shrimp and lobster. Approximately 95% of the crawfish eaten in the US comes from Louisiana, although they are enjoyed all over the world, from Nigeria to Sweden.

This common crustacean can be found crawling around in lakes, rivers, and swamps all throughout the world.

Less salty and sweeter than lobster, crab, and shrimp, crawfish meat has a flavor all its own. Cajun seasoning, which imparts the meat with flavors of paprika, cayenne, garlic, oregano, and other ingredients, is frequently used in traditional preparations of crawfish.

Therefore, Alphaman banegan crawfish has a large flexible tail, four pairs of legs, two large claws, and is a highly prized shellfish all around the world.

To learn more about crawfish, refer to the link:

https://brainly.com/question/4976765

#SPJ5

An abnormal condition in which the placenta separates from the uterine wall before the birth of the fetus.

Answers

The abnormal condition in which a placenta separates from the uterine wall before the birth of the fetus is known as:

Placental abruption

I hope this helps! I'm happy to answer any other questions you might have :)

Many animals form complex societies of related individuals. Which of the following benefits do these societies provide?

Answers

Society is a group of individuals being involve in social interaction sharing the same territory thus society enables the members to benefit in ways that cannot be done only individually like protecting everyone from predators. It would be good to have a society and also for territorial purposes.

Anciently the one performing the sacrifice would place the animal on the altar with its head to his right. he would then declare his authority by raising his right arm to the square

Answers

and says "having been commissioned of Jesus Christ"

If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. what accounts for this difference? if placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. what accounts for this difference? the relative impermeability of the plant cell wall to water expulsion of water by the plant cell's central vacuole the relative impermeability of the plant cell membrane to water the relative inelasticity and strength of the plant cell wall

Answers

IIRUWEUIUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Final answer:

Animal cells lack a rigid outer structure and burst in hypotonic solutions like tap water, while plant cells have a strong cell wall that prevents lysis and uses a central vacuole to manage water intake, maintaining structural integrity and turgidity.

Explanation:

When an animal cell is placed in tap water, which is a hypotonic solution, it will swell and eventually undergo lysis (bursting) because it lacks a rigid outer structure to prevent over-expansion. In contrast, a plant cell has a rigid cell wall surrounding the plasma membrane, which provides structural support and prevents lysis in hypotonic situations. This cell wall can withstand the increase in water volume up to a certain point, creating turgor pressure within the cell that is beneficial for maintaining the plant's structure. Additionally, plant cells manage excess water using a large central vacuole, which stores water and supports the cell's turgidity.

The main reason a plant cell does not undergo lysis in tap water is due to the relative inelasticity and strength of the plant cell wall, which provides a protective barrier. Moreover, when a plant cell is exposed to a hypertonic environment, it undergoes plasmolysis where the plasma membrane detaches from the cell wall, but unlike an animal cell, the cell wall maintains the plant cell’s structural integrity.

Learn more about Cell Osmoregulation here:

https://brainly.com/question/32632956

#SPJ2

_______________ are nonaddictive, but they can produce some unpleasant physical reactions, including dry mouth, headaches, constipation, nausea, gastrointestinal problems, weight gain, decreased sexual desire, and delayed orgasm.

Answers

The correct answer is "antidepressant drugs".
Antidepressants are drugs commonly used to treat depression, anxiety and phobias, and obsessive-compulsive disorders. There are many different types of antidepressants which differ based on their mechanisms. All of them target the serotonergic system of the human brain. They are not considered addictive but they can cause many different negative side effects. 

Which organ performs the major role in excreting wastes from the body?

Answers

The answer is kidneys. The organ excretes excess water and ions from the body, urea from deamination of proteins removes toxic substances broken down by the liver. The nephrons are the basic units of the kidney. In addition, kidneys are significant in hormonal regulation  and maintenance of blood pressure.


What did Walter Sutton discover about the relationship between alleys and chromosomes?

Answers

Walter Sutton discovered that chromosomes are the basis of heredity and this explained the segregation of alleles in Mendel's law of segregation. Basically alleles and chromosomes in Mendel's explanation are the same thing.

which of the following describes how an abiotic factor can impact the population dynamics in an ecosystem

Answers

Occasional varieties in temperature can make a portion of the people in a populace kick the bucket.

An abiotic factor can impact the population dynamics in an ecosystem by affecting the availability of resources and creating environmental conditions; examples are the soil, air, etc.

What is the significance of the abiotic factors in the surroundings?

Abiotic factors such as temperature, water availability, and soil nutrients impact population dynamics and can cause a decline in the population size, and the favorable conditions and the unfavorable conditions regulate the population growth. Abiotic factors explain how ecosystems function and how species interact with their environment.

Hence, an abiotic factor can impact the population dynamics in an ecosystem by affecting the availability of resources and creating environmental conditions; examples are the soil, air, etc.

Learn more about the abiotic factors by clicking here.

https://brainly.com/question/29773665

#SPJ6

After water itself, what are the two primary elements which occur in sea water?

Answers

The answer is chlorine and sodium. Hope I helped. Be sure to thank me and yw. (and add as friend if you want)

The ecosystem that would most likely have a very high net primary productivity is a

Answers

The ecosystem that would most likely have a very high net primary productivity is a tropical rain forest. This type of an ecosystem is characterized by constant temperature, high annual rainfall, nutrient-poor soil, and high levels of diversity. The level of humidity and density of the vegetation give the ecosystem a unique water and nutrient cycle. 

The motivating potential score (mps) is calculated as part of using _____.

Answers

The motivating potential score (mps) is calculated as part of using the job characteristics model. The job characteristics model applicable to a business serves to identify the job characteristics of skill variety, task identity, task significance and feedback, and the outcomes of high job performance, high intrinsic motivation, high job satisfaction and low absenteeism or turnover.

In which stage of meiosis are sister chromatids lined up along the equalateral plate of the dividing cell?

Answers

Answer: "Metaphase" Sister chromatids line up along the middle of the cell.

Explanation:

Aerobic respiration uses ________ to convert glucose (or other organic nutrient molecules) back into carbon dioxide and water.

Answers

Oxygen is the answer

Which is not a major salivary gland? lingual glands parotid glands submandibular glands sublingual glands all of these choices are major salivary glands?

Answers

Yes all of these are

Final answer:

Lingual glands are not considered major salivary glands; the three major salivary glands are the parotid, submandibular, and sublingual glands, which secrete the bulk of saliva into the mouth.

Explanation:

Among the choices listed, lingual glands are not considered major salivary glands; rather, they are part of the numerous minor salivary glands present within the oral mucosa and tongue. The three pairs of major salivary glands that secrete the majority of saliva into the mouth are the parotid glands, the submandibular glands, and the sublingual glands. Of these, the parotid glands are located near the ears and secrete saliva into the mouth through the parotid duct. The submandibular glands are found in the floor of the mouth and release saliva through the submandibular ducts. Lastly, the sublingual glands lie below the tongue and utilize lesser sublingual ducts to secrete saliva into the oral cavity.

Which state looks like it has an area shaped like the heel of a boot?

Answers

In the USA? If I remember right Florida or Texas....If not USA then Italy

Louisiana is the state that looks like it has an area shaped like the heel of a boot, due to its curved southeastern coastline shaped by the Mississippi River and the Gulf of Mexico.

The state that is often referred to as having an area shaped like the heel of a boot is Louisiana. When looking at a map, the southeastern part of Louisiana curves around in a shape that is reminiscent of a heel. This distinctive geographical feature is largely due to the irregular coastline shaped by the Mississippi River and the Gulf of Mexico.

Moreover, different regions of the United States have unique shapes that can be associated with various objects or features.

For instance, Michigan is sometimes called the "mitten" state due to its shape. These colloquial terms are often used to help describe the distinctive shapes of the states in a relatable way.

Determining alternate solutions to a problem is an important aspect of critical thinking because _______. a. it means that the best solution to a problem can be implemented b. it means that the easiest solution to a problem can be implemented c. each person needs their own solution to a problem d. conclusions must be adjusted when necessary Please select the best answer from the choices provided A B C D

Answers

Hello User 

Answer: Determining alternate solutions to a problem is an important aspect of critical thinking because it means that the best solution to a problem can be implemented.

The correct answer is A. 

I hope I helped
-Chris

What organs produce insulin, glucagon, digestive enzymes, and sodoum bicarbohydrate?

Answers

the pancreas.........

The diagram below shows some relationships between ecosystems near the Sonoran and Chihuahuan Deserts. In which category does the thornscrub ecosystem belong?

Answers

Thornscrub has well-illustrated dry and wet seasons, with the majority of the wood plants showing drought deciduousness. Thornscrub is a transitional biome between the tropical and desert forest.  

The thornscrub ecosystem belongs to shrubland. The scrubland, shrubland, brush, scrub, or bush refers to a plant community featured by the vegetation subjugated by shrubs, generally also comprising herbs, grasses, and geophytes. The shrubland may take place either naturally or due to human activity.  


Identify the correct flow of urine out of the body

Answers

You did not indicate any choices but urine goes out of the body through one track only so I will just talk about its pathway and the organs involved in the correct order. 

Urine is produced by the kidneys, bean-shaped organs that filter waste out of the blood that goes through them. Now the urine goes from the kidneys to two thin tubes called ureters. The ureters then empty urine into the urinary bladder. When the bladder fills up, it empties the stored urine into the urethra which opens to the outside of the body. 

So in summary urine pathway is:
Kidneys-ureters- urinary bladder-urethra-outside the body. 

What disease of the nervous system is also referred to as water on the brain?

Answers

the name is hydrocephalus

All adults over the age of 40 experience age-related bone loss. what is the term for this condition?

Answers

The answer would be osteoporosis

Osteoporosis comes from word osteo- which mean bones and -porosis which means "pore". The term is used to describe a decrease in bone density which makes them seems like having multiple pores. It is found more in the old patient because the bone formation is decreased.

What is an organism that lives on or in another organism and uses the other organism for nourishment to the detriment of the host organism?

Answers

This type of organism is called a parasite.

Think critically gangue is waste rock remaining after a mineral ore is removed. why is gangue sometimes reprocessed

Answers

Gangue is sometimes reprocessed for the purpose of obtaining extraminerals. This may be done using both the new and old methods in mining. Gangue refers to the worthless mined materials in ore, a common example of gangue is the small pieces of quartz in some ore. It is a waste rock or materials overlying an ore or mineral body that are displaced during mining without being processed or simply rock impurities. 

The primary difference between quasi-experiments and true experiments it ths quasi experiments typically

Answers

The differences between true experiments and quasi-experiments is that in a true experiment, participants are randomly assigned to either the treatment or the control group, whereas they are not assigned randomly in a quasi-experiment. Quasi experiments are empirical interventional study used to estimate the casual impact of an intervention on its target population without random assignment. 

Many of the symptoms of vitamin a deficiency such as blindness and an increase in infectious diseases are related to the role of vitamin a in:

Answers

maintaining the epithelial cells

_____ is a procedure used to open a partly occluded artery

Answers

Being a nurse, I can tell you the answer is angioplasty.

The brain of the north american bird known as the clark's nutcracker has an unusually large ________, which may help explain how the bird finds food it buried over a wide area months earlier.

Answers

The Clark's Nutcracker has an unusually large Hippocampus.

Has a nucleus and a cell wall that contains chitin

Answers

Prokaryotes.
I hope this helps!!
prokaryotes have nuclei and a cell wall that contains chitin

Which of the following bacterial cells would best be able to survive an attack by an antibiotic?
a.A bacterial cell that used its toxins to alter its DNA and resist the antibiotic
b. A bacterial cell that had a cell membrane made of ester-linked fatty acids
c.A bacterial cell that lacked receptors on its surface for that antibiotic
d.A bacterial cell that was going through binary fission when the antibiotic appeared

Answers

Answer:

c. A bacterial cell that lacked receptors on its surface for that antibiotic

Explanation:

If the bacteria lacks the receptors on its surface meant for that antibiotic then it will be best defense for the survival of that bacteria. It is receptors which interact with the antibiotic so as to permit it inside the cell. Therefore, in the absence of receptors, it doesn't matter how much antibiotic is lying in the external environment of that bacteria, the antibiotic will not be able to enter the bacterial cell to kill it. Hence, the bacteria will be able to survive easily.

Answer:

The correct answer is option c."A bacterial cell that lacked receptors on its surface for that antibiotic".

Explanation:

There are different mechanisms by which bacteria can get antibiotic resistance. One common mechanism is that the bacteria changes the site or changes the receptor that is recognized by the antibiotic to work. Taking into account this adaptation, a bacterial cell that lacked receptors on its surface for the antibiotic from the beginning would best be able to survive an attack by an antibiotic.

Other Questions
The Nixon administration is credited with the following environmental achievements except Read the excerpt from On the Road. One day I was hanging around the campus and Chad and Tim Gray told me Dean was staying in a cold-water pad in East Harlem, the Spanish Harlem. Dean had arrived the night before, the first time in New York, with his beautiful little sharp chick Marylou; they got off the Greyhound bus at 50th Street and cut around the corner looking for a place to eat and went right in Hectors, and since then Hectors cafeteria has always been a big symbol of New York for Dean. Which statement best explains how Kerouacs writing style reflects the values of the beat generation? Which or the following solutions would have the highest concentration of hydronium ion and why?A)1.010^-3 M HClB)1.010^-3 M HC2 H3 O2C)0.050 M HClD)0.050 M HC2 H3 O2(I already know that the answer is C I just don't know why) Who is the logical candidate to purchase health insurance? Which parts of this excerpt from "Once in a Lifetime" by Jhumpa Lahiri indicate that it is written using second-person point of view? Value of m varies directly as value of n and n=5 when m=12. What is n when m=18? Which of the following is the most common use of mobile technology for small and medium businesses? Fleet management and service Delivery and pickup processes Managing sales and invoice data Social media and email marketing In which type of transistor does current flow from the base to the emitter? A. An NPN transistor, which has a p type baseB. An NPN If the consequence that you predict from your hypothesis comes true, what follows from this? it logically follows that the hypothesis is true there is no support for the premises the conclusion must be false it provides some inductive support for the hypothesis Which method will most accurately determine the diversity of an ecosystem? To StaySafe around electricity, Ted needs to:A.Follow his gut instinctB.Follow procedures established by his co-workersC.Make sure electrical hazards are resolved immediatelyD.Practice electrical safety only when his employer is watching Wind and ocean currents do not move in straight lines; instead, they curve as they move across the planet. What is responsible for this pattern of movement? A.differences in water temperature B. differences in water salinity C.the Coriolis effect D.differences in water densityplease help now According the map, which country was the biggest threat to european nations in 1914? russia united kingdom portugal united states Many farmers in less densely populated areas, such as amazonia, practice _______________, also known as shifting cultivation or swidden agriculture where an area is cleared and then burned for the vegetative remains to release nutrients back into the soil. Poisonous substances produced by some microorganisms are called Atoms that have a positive or negative electrical charge are called ________. A. magnetic B. isotopes C. metals D. ions Read the excerpt below and answer the question. CHORUS. Learned Faustus, To know the secrets of astronomy, Graven in the book of Joves high firmament, Did mount himself to scale Olympus top, Being seated in a Chariot bright, Drawn by the strength of yoky dragons necks. What does the word yoky most likely mean?- beasts connected by a crosspiece in order to pull something- yellow like an egg yolk- conjured by the dark arts- beasts that are powerful in the yokes of their necks As the time of the attack approached, how did empey feel and act? Why does daisy think that nick is secretly in love with her? The World Trade Organization (WTO), which was formed in 1995, trades without discrimination. Which of these BEST describes what this principle means?