(10 points) Miller and Urey recreated Earth’s early in a test tube. Then they bombarded the chemical mixture with ultraviolet light and simulated lightning. What were the results?
Answers
Answer:
Cell membranes had formed
Explanation:
I hope it helped
The Miller and Urey experiment showed for the first time that the organic molecules necessary for life could be formed from inorganic components.
In 1953, scientists Stanley Miller and Harold Urey experimented to verify that organic molecules could form spontaneously under environmental conditions similar to those of the Earth in its early days.
To do this, they built a closed system in which they included a container with hot water and a mixture of gases that supposedly abounded in the Earth's atmosphere at the beginning. In addition, they devised the way to simulate lightning bolts that provided energy for chemical reactions in the atmosphere.
After running their experiment for a week, they resulted in the formation of various types of amino acids, sugars, lipids, and other organic molecules. This experiment allowed them to show that at least some of the structural units of these molecules could form spontaneously from simple compounds.
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Related Questions
If Earth suddenly increased in mass, what might happen to its orbit around the Sun?
It says biology but it is just science
Answers
Answer:
If the orbit of the Earth changes, then the distance between the Earth and the Sun changes. If you tug on an object once (as you would, if you suddenly increased the mass of the sun), you'll likely pull a circular orbit into a more oval, looping orbit.
Please HELP ASAP!!!!!!!!!!!!!A drawing or illustration that visually represents a concept is known as a
Oline graph.
O map.
O diagram.
O bar graph.
Answers
the Answer is Diagram
for conveying a concept through visual means
What is one difference between mitosis and molosis?
A Mitosis produces more daughter cells than melosis,
Melosis is needed for growth and tissue repair, but mitosis is not
Mitosis produces diploid cells, while meiosis produces haploid cells
0. Mitosis produces haploid cells, while meiosis produces diploid cells.
Turin
Edatlanine
Answers
Answer:
Mitosis produces diploid cells, while meiosis produces haploid cells
Answer:
c
Explanation:
A homeless man in panama city was arrested and charged with theft he could not afford an attorney and had to go trail without one bbb
Answers
Answer:
um i don't get the question but he's not allowed to go to trial without an attorney. they should be given an attorney if they can't afford one
Explanation:
what kind of seismic wave does this slinky motion present?
Answers
how do humans cause pollution? i need like 5 examples
Answers
Answer:
Burning Fossil fuels, factories, dumping oil/sewage into the water, nighttime-lighting, and spray cans.
Explanation:
All of these can be found in articles in the news and etc about pollution, hope this helps! :D
Which place is known as ‘Gateway of the Gods?
please donot spam,,,
Answers
Answer:
Lake Titicaca
Explanation:
Which is located in peru.
what worries scientists about mapping? (oceans)
Answers
Answer:
I think the safety of the marine communities and the fact that there's too much water in the way to do mapping
Explanation:
During a thunderstorm, an observer can see lightning before hearing its thunder. Why do we see lightning before we hear thunder?
O Sound travels slower than light
O Sound needs a medium to travel through.
O Sound cannot reflect off surfaces as easily as light.
O Sound is not processed by the brain as fast as light.
Answers
Answer:
Sound travles slower than light
Explanation:
Explain how endospores have allowed some bacteria, like tetanus, to be a successful species.
Answers
Answer:
Endospores allow Clostridium tetani (causative agent of tetanus) to survive harsh conditions in the environment. Because tetanus is an obligate anaerobe, oxygen is a harmful environmental factor. Endospores also allow the bacteria to resist desiccation (drying) and high temperatures.
The bacteria can be dormant as endospores until they are in favorable conditions. At this point, they will germinate into vegetative cells where they will be able to reproduce until conditions become unfavorable and they form endospores again.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Answer: spore open and bacteria goes in your pore making them zits
Explanation:
The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:The spore form allows bacteria to exist under conditions not conducive to its life. It allows the bacteria to exist until the enviromental conditions favor its vegatative form when it can reproduce. Without the ability to form spores the bacteria would simply die out.
Explanation:
The endosymbiotic theory states that eukaryotes evolved from prokaryotes. Which statement is part of the endosymbiotic
Answers
Note about the question:
Statements are missing, and I failed to find the complete question. So here I give you some details about the theory that will help you to indetify the correct statement.
Answer and Explanation:
The endosymbiotic theory essentially states that some organelles of the eukaryotic cells, such as mitochondria and chloroplasts, were once free-living bacteria. Probably, these organisms must have been phagocytosed but not digested by another cell. On the contrary, these bacteria were able to adapt to their host in such a way that the two cells established a dependent relationship with each other.
It is speculated that chloroplasts derivate from cyanobacteria and that mitochondria derivate from rickettsias.
Cells would be beneficiated from this new bond, at the point that they could not survive by themselves anymore.
This theory is supported by a few characteristics of the chloroplasts and mitochondria that suggest that they once were a free cell. For example,
Both organelles present their genetic material. This DNI is independent of the cell´s DNA, is bi-catenary and circular, identical to the bacterial DNA, and very different from the one of the eukaryotic cells. These organelles do not divide by mitosis. Instead, they do it by binary fission and are capable of synthesizing their ribosomes and organelles. Both organelles present a double membrane, a characteristic that reinforces the idea of being phagocyted. The internal membrane looks identical to the bacteria membrane, while the external membrane looks like the eukaryotic one. In fact, in this internal membrane are placed the energy centers, exactly as it occurs in bacterias membrane. Finally, the sizes of the organelles are similar to the size of some procaryotes.15. Which of the following is a valid explanation for why people produce
synthetic materials?
A. Synthetic materials always biodegrade easily.
B. Synthetic materials do not require any natural resources to produce.
C. Synthetic materials are less artificial than natural resources.
D. Synthetic materials help meet societal demand for materials that are in
short supply in nature.
Answers
What is the original source of energy for all life on earth?
Answers
Answer:
sun
Explanation:
sun is the main source that plant and animals get that energy from
PLLLZ HELP!!! WILL MARK BRAINLIST! IM HORRIBLE AT SCIENCE! What do prokaryotic and eukaryotic cells both have in common?
a. mitochondria and a nucleus
b. a cell wall and membrane organelles
c. a nucleus and ribosomes
d. a cell membrane and ribosomes
Answers
Answer:
D
Explanation:
Answer:
The answer is D
Explanation:
"Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. ... Ribosomes are the non-membrane bound organelles where proteins are made, a process called protein synthesis."
PLZ THANK FIVE STAR AND MARK BRAINLIEST:)
Examples of mitigation projects include which of the following?
1. Greenway
II. Fish ladder
III. Wildlife corridor
A. I,II, and III
B. Il only
C. I and III only
O D. II and III only
9
Answers
Answer: A
Explanation:
I took this quiz
Answer:
I, II and III
Explanation:
just took the test
A majority of the seed is made up of the...
a) seed coat
b) testa
c) endosperm
d) radicle
Answers
Answer:
Your answer is C) endosperm.
In the Mitochondria, two ATP molecules are produced dotseveral other compounds are also created these compounds are capable of storing high slash energy electrons startthe compounds are fan changed into other forms that can carry the high-energy electrons to the next stage.. |Which word from the paragraph help this reader to understand the meaning of "produced"? |. 1. Storing
2.compounds
3.created
4.change.
Answers
Answer:
Electron transport chain
This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle). The electron transport chain takes place in the mitochondria. This stage converts the NADH into ATP.The citric acid cycle is a series of chemical reactions that removes high-energy electrons and uses them in the electron transport chain to generate ATP. One molecule of ATP (or an equivalent) is produced per each turn of the cycle.
Explanation:
View the incomplete table:
State
Arrangement of Atoms
are foxed vibrate in place
U
move freely spread out
Liquid are closely packed, slide past one another
V
have rapidly moving ionized particles
In which box could "gas” be placed?
Example
w
helium
х
Sun
OU
v
Ow
it’s B
Answers
Answer:
I believe answer choice C(w)
Explanation:That’s what I picked and I got it correct
Answer:
A
Explanation:
Took the other guys answer, it was wrong and didn't make sense. Helium is a gas.
What will most likely happen in the absence of a nucleus? Genetic information will not be transmitted by the cell. Energy will not be released during cellular respiration. The cell will not store food, water, nutrients, and waste. The cell will lose its shape and structure.
Answers
Answer:
A-Genetic information will not be transmitted by the cell
Explanation:
Answer:
Genetic information will not be transmitted by the cell
Explanation:
Which organelle is X?
What substance is found at Y?
Answers
Classification systems are:
A) all the same
B) are all different
C) may vary with the taxonomist
D) none of these
Answers
Answer:
the answer is B, I believe
When can a theory be revised
Answers
How would an atom of gold compare to an atom of carbon?
A they would be different
B they would be the same
Answers
Answer:
a
Explanation:
Answer:
A. They would be different
Explanation:
They would be different since they are different elements on the periodic table of elements.
a) How many children does the couple have?
Answers
Answer:
Please show the whole question before putting it on the website
Explanation:
The “Rule of 10” states that as little as ________ % of the energy at any trophic level is transferred to the next trophic level.
If I am a higher trophic level organism, this means that I need to eat MORE / LESS (circle one) food in order to fulfill my energy needs.
The majority of the energy is lost as ________________ through the completion of metabolic processes.
Answers
Answer:
1) "Rule of 10" states that as little as 10% of energy is transferred
2) Higher trophic level organisms need to eat MORE food, as energy is lost between trophic levels
3) The majority of the energy is lost as heat
PLEASE I WILL MARK BRAINLIEST
discuss the stages of the cell cycle mechanism that regulate it and how this cycle is related to the growth and maintenance of organisms
Answers
Answer:
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
Cyclins regulate the cell cycle only when they are tightly bound to Cdks. To be fully active, the Cdk/cyclin complex must also be phosphorylated in specific locations. Like all kinases, Cdks are enzymes (kinases) that phosphorylate other proteins. Phosphorylation activates the protein by changing its shape.
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DNA replicates twice during meiosis
true or false?
Answers
Answer:
Meiosis consists of one round of DNA replication and two rounds of chromosome segregation.
Explanation:
DNA replicates twice during meiosis. Meiosis consists of one round of DNA replication and two rounds of chromosome segregation. Therefore, this statement in false.
What do you mean by meiosis?Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm). In humans, body (or somatic) cells are diploid.
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
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can you help me with this?
can you help me with this?
From the diagram, label the following words on the diagram. write the shape and colour for the following terms.
A) Deoxyribose
B) phosphate
C) nitrogenous base
Answers
Answer:
answer
Explanation:
A)-blue regtancle
B)-bluish/green circle
C)-purple pentagon
What adaptations are common for animals in hot and cold climates? Name at least two for both hot and cold climates.
Answers
Answer:
Explanation:
1. hot- camels live in hot deserts where its extremely hot and sandy therefore they have long eyelashes to protect their eyes just in case of sand storms
2. cold- penguins live in very cold climates so they have both black and white fur white so they can disguise in the snow from predators and black so they can absorb heat from the sun when they get extremely cold
3. hot -thick fur on the top of the body for shade, and thin fur elsewhere to allow easy heat loss. a large surface area to volume ratio - to maximise heat loss. the ability to go for a long time without water - they lose very little water through urination and perspiration. the ability to tolerate body temperatures up to 42°C
Why does water run through gravel quickly?
A.Gravel has a high porosity (lots of holes)
B.Gravel has a low porosity (few holes)
C.Gravel does not have a porosity which makes the water move quickly
Answers
Answer: I belive it is A
Explanation:
Gravel is not packet super tight like say dirt is. The small spaces between the tiny chunks of rock and mineral that are present in gravel allow water too smoothly slide in.