How did the research of Miller and Urey contribute to the hypotheses about the origins of life on Earth?

Answers

Answer 1

Answer:

Miller and Urey's research showed that it was possible for organic molecules to be developed from inorganic molecules, which contributed to the hypotheses about the origin of the earth.

Explanation:

Stanley L. Miller and Harold C. Urey developed a series of research and experiments that showed that the planet earth, even in its primitive state, promoted a series of chemical reactions that used inorganic substances as a reagent, to create organic substances as a product and these organic compounds were the precursors of life on earth.

To reach this conclusion, they used a closed system, without the presence of oxygen, but with the presence of hydrogen, ammonia, methane and water vapor. They subjected this system to various cycles of electrical discharges, heating and condensation of the page, to create environments in which chemical reactions could happen. After some time, it was possible to observe the presence of organic molecules.


Related Questions

ANSWER FAST ILL GIVE BRAINLIEST!!!
What does it mean for a species to be in stasis?
The gene pool of the species is changing rapidly.
The species is not changing much.
The species is only found as fossils.
The species is in geographic isolation.

Answers

Answer:

the species is not changing much

Explanation:

another way you can think of this is homeostasis and that is a period of inactivity

The species is not changing much

Can someone pleaseeee help and if you’re correct i’ll give brainliest

Answers

Answer:

B, i beleive

Explanation:

tried my best

The answer to you question is option B

What are the two sets of the chromosomes of the same type are called?
Diploid cells have 1 set of chromosomes that comes from?
Nervous system cells that are in the human body are?​

Answers

Answer:

What are the two sets of the chromosomes of the same type are called?

Homologous chromosomes

Diploid cells have 1 set of chromosomes that comes from?

The mom's egg and the other set comes from the dad sperm

Nervous system cells that are in the human body are?

Diploid

-TheUnknownScientist

Explanation:

homologous chromosomes

diploid

What happens to the blood pressure when the blood vessels get longer?

Answers

Answer:

:)

Explanation:

The main artery from the heart (aorta) becomes thicker, stiffer, and less flexible. This is probably related to changes in the connective tissue of the blood vessel wall. This makes the blood pressure higher and makes the heart work harder, which may lead to thickening of the heart muscle (hypertrophy).

………….what are alveoli

Answers

Answer:

Tiny air sacs at the end of the bronchioles (tiny branches of air tubes in the lungs). The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body. Carbon dioxide travels in the blood from the body's tissues and passes through the alveoli to be breathed out.

Which part of cell theory is illustrated by the diagram (answer fast please for 49 points)

Answers

Answer:

A.

Explanation:

I'm so sorry if I'm wrong answer

Answer:

According to the multiple choice given it's most likely A

How do plants use flowers

Answers

Answer:

I don't know the answer, but it won't let me delete my previous answer.

Explanation:

where is the protein on a DNA?​

Answers

Answer:

Explanation:

The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm.

ᴄᴀɴ ᴀɴʏʙᴏᴅʏ ɢɪᴠᴇ ᴍᴇ ꜰɪᴠᴇ ꜰᴜɴ ꜰᴀᴄᴛꜱ ᴀʙᴏᴜᴛ ᴛʜᴇ ᴀꜰʀɪᴄᴀɴ ꜱᴛʀᴀᴡ ᴄᴏʟᴏʀᴇᴅ ꜰʀᴜɪᴛ ʙᴀᴛ?

Answers

These bats are very social bats and stay in huge colonies ranging from one hundred thousand to one million bats, both male and female included, and during migration their numbers are higher. Since they live in tight knit communities but are suspicious of outsiders, they are one of the most secretive specie of bat, preferring to keep their colonies and hide out. These bats can live over twenty years.

The largest danger and predator of straw-colored fruit bats are humans. In some areas, such as West Africa, straw-colored fruit bats are hunted and consumed for their meat because they are considered a delicacy.

Animal and Plant Cell Organelles Use the drop-down menus to determine where these organelles can be found. Ribosome Endoplasmic reticulum Golgi apparatus Cell wall Vacuoles Lysosomes Mitochondria Cell membrane Cytoplasm Chloroplasts

Answers

Answer:

Animal Cell:

Ribosome, Endoplasmic reticulum, Golgi apparatus, small Vacuoles, Lysosomes, Mitochondria, Cell membrane, Cytoplasm.

Plant Cell:

Ribosome, Endoplasmic reticulum, Golgi apparatus, Cell wall, Big Vacuole, Lysosomes, Mitochondria, Cell membrane, Cytoplasm, Chloroplasts.

Explanation:

                          Animal Cells                              Vegetable Cells

Cell wall                          NO                                             YES

Vacuoles       YES, Small and more than ones     YES, Only one and big

Chloroplast                      NO                                        YES

Plasmatic membrane       YES                                            YES

Mitochondria                       YES                                         YES

Lysosomes                       YES                                           YES

Endoplasmic reticulum      YES                                           YES

Golgi apparatus                   YES                                           YES

Cytoplasm                            YES                                           YES

Ribosome                             YES                                           YES

Both the animal and plant cells are eukaryotic. They carry their genetic material in the nucleus and mitochondria. Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.

However, they have some differences:

Cell wall: A rigid structure that provides support and protection.

Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible, so they can adopt different shapes. Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.

Chloroplast: these are organelles that accumulate chlorophyll.

Animal cells do not have chloroplasts because they do not photosynthesize. Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as the source of energy.

Vacuoles:

Animal cells have many and small vacuoles whose function is to store water, ions, and waste intracellular substances. Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.

Other differences are:

The animal cell has centrioles, while the vegetable cell does not.

Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.

what happens to macromolecules from food during digestion?
what atoms makeup sugar molecules, amino acids, and fatty acids?
what do you notice about the atoms that make up these molecules?
how are these atoms used to make new molecules? what types of molecules are made?
where does the energy come from to produce these new molecules?

Answers

Answer:

In chemical digestion, enzymes break down food into the small molecules the body can use. It is important to break down macromolecules into smaller fragments that are of suitable size for absorption across cell membranes.

Amino acids are the monomers that makes up protein

If it's in the table, it's an element! Atoms can join together - they form bonds together - to make MOLECULES. For example, two atoms of hydrogen hook together to form a molecule of hydrogen, H2 for short.

BONDING. When atoms join together to form molecules, they are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons between the atoms. ... Different atoms use these electrons to form one of three different types of bond: ionic bonds, covalent bonds, or metallic bonds.

Proteins. ...

Lipids. ...

Carbohydrates. ...

Nucleic Acids.

Respiration, which consists of three phases, occurs in the mitochondria, the cell's “powerhouses.” This metabolic pathway traps the maximum amount of stored chemical energy within a molecule of glucose, generating a total of 30 molecules of ATP in conjunction with glycolysis.

Please give me a brainliest...Thank you

help asap please!
science
Complete the table below to show the difference between active and passive transport. Put a “X” in boxes that satisfy the statement.

Answers

Answer:

Active transport:

requires energymolecules move from low to high concentration sidesNa+ and K+ move by active transport

Simple diffusion:

molecules move from high to low concentration sidesmolecules pass between lipids small non-polar and polar molecules

Facilitated diffusion:

molecules move from high to low concentration sidesinvolves channel proteinsmove large molecules

Explanation:  

Simple Diffusion is the pathway of only small molecules that freely move through the membrane by momentary openings produced by the lipids' movements. Diffusion is a slow process that requires short distances and pronounced concentration gradients to be efficient. An example of diffusion is osmosis by which water is the transported molecule. Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.  Glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.

Simple diffusion and facilitated diffusion are both passive transport processes because they only depend on electrochemical gradients, so they do not need any energy to occur.

Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen. Molecules move from the lower concentration side to the higher concentration side of the membrane. Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential. An example of molecules moved by active transport are the Na and K.

In Active transport, molecules or ions move against the concentration gradient by using energy from ATP.

What is Membrane transport?

The transfer of molecules across the plasma membrane into or out of the cell.

There are two types of membrane transport,

1. Passive transport:

When molecules move along the gradient. It can be of two types,

Simple diffusion (via phospholipids)Facilitated diffusion (via channel protein)

2. Active transport:

When molecules move against the concentration gradient, they require energy. Energy is given by ATP.

Therefore, in Active transport, molecules or ions move against the concentration gradient by using energy from ATP.

Learn more about Membrane transport:

https://brainly.com/question/13220002

is there cures and current treatment of Down syndrome?

Answers

There is apparently no cure for down syndrome right now. The current treatment for down syndrome is therapies, such as emotional therapy.

Which of the following problems could potentially be solved through DNA fingerprinting?
A. test to confirm that a calf was fathered by a specific bull
B. produce a bull with identical DNA to a champion
C. produce a very small but healthy breed of cow
D. remove a gene to develop cows with no horns

Answers

Answer:

answer is clearly a

Explanation:

my teacher told me

A symbiotic relationship in which one species benefits and the other is harmed is known as mutualism. predation. commensalism. parasitism.

Answers

Answer:

Parasitism

Explanation:

Example: Mosquitoes feed off the blood of a human and is benefitted, the human is harmed because the mosquitoe exposed he/she to malaria.

A symbiotic relationship in which one species benefits and the other is harmed is called parasitism. The parasite lives on the food of the host. Fourth option is correct.

What are different types of symbiotic associations?

In symbiosis, two organisms are present in close contact. There are different types of relationships seen in nature, such as mutualism, commensalism, parasitism, etc.

Mutualism occurs when two organisms, such as lichen, benefit from one another. Lichen is an association of algae and fungi. Algae makes food that is consumed by fungi, and fungi provide algae for a place to live.

In parasitism, one is the host, and the other is the parasite. An example is the tapeworm in the human intestine. Tape worms consume digested human food and harm humans by spreading their population. Here, the host is negatively impacted by the presence of parasites.

In predation, both are harmed as both are involved in the fighting. In commensalism, one party gets benefits while the other is not harmed by the association.

Hence, the fourth option is the correct answer, which is parasitism.

To learn more about the symbiotic association, refer to the following link:

https://brainly.com/question/22589174

#SPJ5

Los hidrocarburos se forman con la Unión de los elementos carbono e hidrógeno hay dos grandes grupos que son:

Answers

Answer:

Alcanos, alquenos y alquinos.

Explicación:

Los hidrocarburos se forman con la unión de los elementos carbono e hidrógeno, hay tres grandes grupos de hidrocarburos que son alcanos, alquenos y alquinos. Estos hidrocarburos se dividen en grupos según el tipo de enlace. Los alcanos son los hidrocarburos que contienen enlaces simples entre átomos de carbono, los alquenos tienen un doble enlace entre átomos de carbono, mientras que los alquinos contienen un triple enlace carbono-carbono.

. Does the employee ever seem defensive during this discussion? How successful is her defensive reaction?

Answers

Hello. You did not reveal the discussion to which this question refers, which makes it impossible for this question to be answered. However, I will try to help you in the best possible way.

To find out if the employee remains in defensive behavior during an argument, you need to look at how that employee is positioning himself. Defensive behavior is one where the individual, at all times, tries to preserve his self-image and protect himself from possible accusations, even if it is necessary to distort situations. If the employee exhibits this behavior at the time the discussion takes place, it is because he is taking a defensive position. This behavior is successful when the employee is able to preserve his reputation at the end of the discussion.

Protein in your diet provide what necessary substances to repair muscles?

Answers

The muscle damage initiates a repair process in which certain hormones, along with the macronutrient protein, synthesize new satellite cells, which are used to repair the damaged muscle fibers. In other words, the role of protein is to help repair tissues damaged by exercise.

A student conducted an experiment to test the strength differences between an orb spider's web and a black widow spider's web. The student calculated the strength of the wob by using the number of seconds each web held a 4 gram weight What type of results did the student calculate in this experiment?
A) Qualitative results
B) Problem-solving results
C) Hypothetical results
D)Quantitative results

Answers

Answer: D

Explanation:

Quantitative type of result the student calculate in this experiment.

What is Quantitative type of results?

Quantitative research is based on the collection and interpretation of numeric data. It focuses on measuring (using inferential statistics) and generalizing results.

The student have no hypothetical formula to calculate the actual strength of the web of both spider, so he always use to get quantitative type of result in his results.Hence option D is correct.

Learn more about Quantitative result here:

https://brainly.com/question/13211479

#SPJ2

What is the Florida state record for largemouth bass (guess)

Answers

17.27 Ibs my brother told me this is confidence so probably

Answer:

The state record is 17.27 pounds

Explanation:

Hope this helps

how do neutral mutations to DNA cause inheritable genetic variations?

Answers

Answer:

Mutations contribute to genetic variation within species. Mutations can also be inherited, particularly if they have a positive effect. For example, the disorder sickle cell anaemia is caused by a mutation in the gene that instructs the building of a protein called hemoglobin.

Explanation:

hope this helped, plz mark brainlyest

PLSSS HELPP MMEE!!
How does carbon dioxide in the atmosphere eventually cycle through to a carnivore?

A. Plants use carbon dioxide in the atmosphere during photosynthesis, herbivores eat the plants, and a carnivore eats an herbivore.
B. Carnivores use carbon dioxide in the atmosphere during cellular respiration.
C. Herbivores use carbon dioxide during photosynthesis, and a carnivore eats an herbivore.
D. Plants use carbon dioxide in the atmosphere during photosynthesis, and a carnivore eats the plants.

Answers

Plants use carbon dioxide in the atmosphere during photosynthesis, herbivores eat the plants, and a carnivore eats an herbivore.

How carbon move from atmosphere to the biosphere?

Carbondioxide gas move from atmosphere to the biosphere by absorbing by the plants in the process of photosynthesis. These plants are the food of herbivores so they eat it and carbon move from plant to herbivore. Then the carnivore feed on the herbivore.

So we can conclude that option A is the right answer.

Learn more about cycle here:https://brainly.com/question/7196669

#SPJ2

Nitrogen fixation is______
the process of changing oxygen into a usable form of nitrogen
the process of changing free nitrogen into a usable form
the process of changing fossil fuels into a usable form of nitrogen.
the process of changing fixed nitrogen into a usable form

Answers

Answer:

the process of changing free nitrogen into a usable form (the second option listed)

Explanation:

this is the answer by definition

Answer:

the process of changing free nitrogen into a usable form (the second option)

Explanation:

Which of these organisms provides evidence that mitosis is used for reproduction in some species
A.amoeba

B.ant

C.bluebird

D.jellyfish

Answers

An organism that provides evidence that mitosis is used for reproduction in some species is known as Amoeba. Thus, the correct option for this question is A.

What is Mitosis?

Mitosis may be defined as a type of cell division through which a parental cell is successfully divided into two daughter cells. These daughter cells are genetically identical to the parental cell and are diploid in nature. Somatic cells of the body generally divided this process.

Amoebas are single-celled organisms that reproduce asexually through binary fission. Reproduction occurs when an amoeba doubles its genetic material and creates two nuclei. In this process of reproduction, an individual divides itself into two daughter cells similar to mitosis.

Therefore, an organism that provides evidence that mitosis is used for reproduction in some species is known as Amoeba. Thus, the correct option for this question is A.

To learn more about Mitosis, refer to the link:

https://brainly.com/question/19058180

#SPJ6

Choose the mutation that you think has caused Calix’s calico fur coloring. Form a hypothesis to explain your reasoning. You will be able to revise your hypothesis as you collect more data. ( Ya'll i need a hypothesis )

Answers

The complete question is as follows:

Hypothesis Cas More Information: Here is a summary of the data, Mass of DNA Cat Res per Coll Mother Father Calix 1520 fg 1495 fg 1535 fg . The mass of an X chromosome is 40 fg. • Point mutations do not change the mass of DNA. • In chromosomal rearrangement, some daughter cells gain parts of chromosomes and some lose parts of chromosomes. • In nondisjunction, daughter cells gain a whole entire chromosome. Obe Exp Нур 는 Exp Point Mutation in Melosis Chromosomal Rearrangement Nondisjunction Choose the mutation that you think has caused Calix's calico fur coloring. Form a hypothesis to explain your reasoning. You will be able to revise your hypothesis as you collect more data.

Answer:

The correct answer is - non-disjunction.

Explanation:

Calix's calico has an X chromosome gene that determines the color of fur. One allele forms orange fur and the other give rise to black. In heterozygous give rise to orange patches on black.

Mother has autosome and 2-X chromosomes.

Mass of 2 X chromosomes will be

= 40*2

= 80fg

So mass of autosomes = 1520-80

= 1440fg

Mass of sex chromosomes in father is = 1495-1440

= 55fg

So the mass of Y=55-40

= 15fg

It is clear that the mass of DNA of Calix is exactly 15 more than DNA of the mother. So we can say that Calix has an entire Y chromosome in extra.

So the answer is non-disjunction.

The right option is - non-disjunction.

Information regarding Calix’s calico:

It comprises of X chromosome gene that measured the fur color. In the case of heterozygous, it provides the increment with respect to orange that patches on black.

Since Mother has autosome and 2-X chromosomes.

So,

Mass of 2 X chromosomes should be

= 40*2

= 80fg

Now

The mass of autosomes should be

= 1520 - 80

= 1440fg

Now

Mass of s-ex chromosomes in father should be

= 1495-1440

= 55fg

Now finally the mass of Y is

= 55 - 40

= 15fg

Based on the above calculation, the mass of DNA of Calix should be 15 i.e. more than the DNA of the mother.

Learn more about the mutation here: https://brainly.com/question/8334911

Why does a precipitate form when enzymes denature?

Answers

Answer:

Explanation:

This occurs because heat increases the kinetic energy and causes the molecules to vibrate so rapidly and violently that the bonds are disrupted. The proteins in eggs denature and coagulate during cooking.

Answer:

This is what I found I am sry if this is not it I am 10 yrs

Explanation:

This occurs because heat increases the kinetic energy and causes the molecules to vibrate so rapidly and violently that the bonds are disrupted. The proteins in eggs denature and coagulate during cooking.

Question in photo pls tell me which ever blue box is the Answer
help pls :(
Zoom in if needed
Thank you! :D

Answers

Answer:

The blank box (represents air)

Explanation:

The animal is biotic (living), the tree is also biotic (living), and the piece of wood also biotic (living.) The only abiotic factor in the photo, although we cant physically see it, is air.

How many different versions of a gene are carried in a single normal cell?

Answers

There are 1 to 2 called alleles

Draw a Punnett Square and demonstrate the parents
blood type of the child has AB

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

(PLEASE HELP!! AND NO LINKS OR I WILL REPOT YOU!) True or False: Organisms evolve because they desire to be more fit for their environment in order to survive.

Answers

This is true
( I’m adding extra words because it’s doesn’t let me only put true)
Other Questions
You have been hired as CEO of Lugar Industries and have been asked to change the organizational culture. Because your company operates in a quickly changing environment, you need to have a culture which encourages employees to respond quickly to changes, to take risks, innovate, and have the authority to make quick decisions to take advantage of opportunities and to avoid risks. Based on these conditions, you, as CEO, want a(n) ____ culture. The teacher said to us," Did you complete the task?"(Change into indirect speech) Patrice goes to fishers candy shop with the price of gummy candies modeled by the equation y=5/2x where x is the amount of gummy candy in lbs What is the answer??? what is this y=[tex] \frac{3}{2}x+3 [/tex]the y=-3 Can someone please show me how to do this/ the work for it? Ill award brainliest when possible Which sediment do you think can store the most water? 4. Write the ways to maintain a good mental status in adolescence what is the answer to this question marking brainliest if it's correct 1. If a system is isolated, the total energy within that system is constant. Consider the case of a hot cup of coffee: when it cools down, the energy goes into the surrounding air, causing the air to warm. If the coffee and the air are placed in an isolated chamber, the total energy of the system (coffee + air) is constant because the energy lost by the coffee is exactly equal to the energy gained by the air.The only way for the total energy of a system to change is when it is not isolated, meaning that external forces or sources of energy interact with the system. If we want to define a system where the total energy is conserved, which one of the choices below would be the best system to consider?A. The personB. The person and the EarthC. The Earth2. Based on your answer to Question 1, why doesnt the total energy of the Earth-person system change when the person goes up to a new height, gaining potential energy? Analyze the image below and answer the question that follows.The hierarchy above represents the governmental structure of __________.A.IranB.IsraelC.Saudi ArabiaD.Turkey image down below plz help what is the equation for g, which is f(x)=2x+3x-1 reflected across the y-axis ?[tex] \: \: \: [/tex] How much energy is required to raise the temperature of 74 g of water from 19 C to 47 C. A man has Rs 1900. he lent some of it at 5% p.a and rest at9% p.a. The total amount of interest which he got after4 years was Rs 580.Wwhat was the sumans= Rs650,Rs 1250 Ben bought 3.2 pounds of oranges.The oranges cost $1.60 per pound.How much money did Ben spend onoranges? Analyze the map. Then, answer the question thatfollows.South Africa is an example of a(n)elongated state.perforated state.prorupted state.enclave.exclave. Which of the following statements is false?ACredit cards let you spend unlimited money.B.Credit cards have minimum monthly payments.Credit cards give you the chance to build good credit.DCredit cards let you spend money that you don't have. How can railroad mileage contribute to a war effort?