A scientific question can be answered by experiments. The most scientifically testable question is; can simple organic molecules form spontaneously in an oxygen-free atmosphere?
What is a scientifically testable question?We say that a question is scientifically testable if its answer can be found by carrying out a scientific research on the question.
Now having seen the question and considering all the options listed, the most scientifically testable question is; can simple organic molecules form spontaneously in an oxygen-free atmosphere?
Missing parts:
Which of the following questions about the origin of life on Earth is most scientifically testable? (A) Why were the earliest life-forms created using only twenty amino acids? (B) Did life originate to make the universe a better place? (C) Was catalytic RNA used by ancient organisms as a stepping stone to acquire protein enzymes? (D) Can simple organic molecules form spontaneously in an oxygen-free atmosphere?
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Will give brainliest!!!!!! pls explain the student decides that measuring the amount of co2 produced will determine the total rate of both aerobic and anaerobic respiration. explain why she is correct. explain how the student could measure only the rate of anaerobic respiration.
The student could measure only the rate of anaerobic respiration by measuring the carbondioxide gas concentration.
How to measure the rate of anaerobic respiration?In the absence of oxygen, yeasts convert glucose into ethanol and carbon dioxide. This rate of carbon dioxide is used to measure of the overall rate of anaerobic respiration.
So we can conclude that the student could measure only the rate of anaerobic respiration by measuring the carbondioxide gas concentration.
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How did richard neumann and vincenzo beltrone feel about the us government action during wartime?
Richard Neumann and Vincenzo Beltrone delay bad about the government during wartime as their freedoms weren't enjoyed.
What is freedom?It should be noted that freedom simply means the rights that are accorded to an individual
During this period, there were four essential freedoms which are:
Freedom of speech and expression.Freedom of every person to worship God his way.Freedom from want.Freedom from fear.During wartime, the fear was in the heart of millions of people. This was illustrated by both men.
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What is being reduced in the process of alcoholic fermentation in yeast?.
Answer:
In alcoholic fermentation, the electron acceptor called NAD + is reduced to form NADH. The exchange of electrons that occurs in the process helps to build ATP.
1. What energy transformation occurs as biomass decays in a
compost bin:_________to__________
energy
The energy transformation that occurs as biomass decays in a compost bin is chemical energy to thermal energy.
What is energy?Energy can be defined as an ability of a physical object (body) to do work. Thus, energy must be possessed or transferred to a physical object (body) before it can be used in doing a work.
The forms of energy.In Science, there are different forms of energy and these include the following;
Gravitational energyElectrical energySound energyChemical energyThermal energyIn conclusion, the energy transformations that occur when biomass decays in a compost bin is chemical energy to thermal energy.
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In a marine food web the total biomass of algae far outweighs the total biomass of all the killer whales. Why?
Answer:
because there is more potential food energy in the algae but not in the killer whales because nothing eats the killer whales
Because there is a greater potential for food energy in the algae than there is in the killer whales, who have no natural predators because nothing consumes them.
What is biomass?The biomass of an ecosystem is what determines its structure. The energy contained in living creatures is referred to as their biomass. Autotrophs are the producers in a food chain and are responsible for converting the energy from the sun into biomass. Each successive trophic level results in a loss of biomass. Lower trophic levels almost always contain a greater quantity of biomass than higher ones do.
In the vast majority of ecosystems, the producer level contains both the highest energy level and the greatest amount of biomass. Because of this, there is a greater potential for food energy in the algae than there is in the killer whales. This is also due to the fact that the killer whales do not have any natural predators.
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what is some outliers for putting cabbage water, baking soda, and vinegar experinment?
Which change in dna will cause a heritable germline mutation.
The answer will be :
Paternal exposure to high level of radioactive
it causes heritable germline minisatellite mutation.
1.Which of the following allows the EPA to regulate water on board aircraft to ensure that the public is not exposed to high levels of bacteria? a)Federal Aviation Administration b)clean water act c)food and drug administration d)safe drinking water act
2.which of the following specifically regulates discharges of pollutants into U.S. waters and regulates the quality standards for surface waters? A)clean water act b)safe drinking water Act c)Environmental protection agency d)national environmental policy act
Answer:
Safe Drinking Water Act.
Explanation:
1. The following allows the EPA to regulate water on board aircraft to ensure that the public is not exposed to high levels of bacteria is safe drinking water act and 2. clean water act.
What is the work of clean water act?Under the CWA, the phrase “discharge of a pollutant” is described as “any addition of any pollutant to navigable waters from any factor source,” and “any addition of any pollutant to the waters of the contiguous area or the sea from any factor source.” In different words, a discharge of a pollutant takes place whilst a pollutant is discharged.
The Clean Water Act (CWA) establishes the fundamental shape for regulating discharges of pollution into the waters of the USA and regulating high-satisfactory requirements for floor waters.The US Environmental Protection Agency (EPA) Safe Drinking Water Act (SDWA) is a federal rules that hooked up the fundamental shape for the oversight of the requirements and high-satisfactory of consuming water.Read more about the EPA water problems:
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A global examination of the diversity of tunicates, a marine animal that is related to other chordates, is shown in the graph here. The equator displays the greatest number of species of tunicates while the polar regions have fewer. Which statement explains the distribution of tunicates shown in the graph? es
Answer: A) Tropical regions have more available niches into which new species can occupy.
Explanation: USATestPrep
Answer:
A) Tropical Regions have more available niches into which new species ca occupy.
Explanation:
What is the difference between gradualism and punctuated equilibrium?.
Answer:
The gradualism model depicts evolution as a slow steady process in which organisms change and develop slowly over time. In contrast, the punctuated equilibrium model depicts evolution as long periods of no evolutionary change followed by rapid periods of change.
Explanation:
Answer:
The gradualism model depicts evolution as a slow steady process in which organisms change and develop slowly over time. In contrast, the punctuated equilibrium model depicts evolution as long periods of no evolutionary change followed by rapid periods of change.
Explanation:
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Your roommate has been prescribed an antibiotic for bacterial pneumonia. She is feeling better and stops taking her antibiotic before finishing the prescribed dose, telling you that she will save the remainder to take the next time she becomes sick. What can you tell your roommate to convince her that this is not a good plan?
Answer:
the infection may feel like its going away but its still there and even though you feel better you still shouldnt save it bc those antibiotics were meant for bacterial pneumonia
Explanation:
Many mammals whose diet includes a great deal of leafy plant matter have extra compartments or extensions of their digestive tract that are not present in similar mammals that do not eat leaves. The function of the extra compartments is to Group of answer choices A. Increase surface area for absorption of nutrients into the blood B. Provide an area for their symbiotic bacteria to live C. Provide an area to store the leafy matter before digestion D. Provide an area to store water required for digestion
The function of the extra compartments in the stomach of ruminant animals is to provide an area for their symbiotic bacteria to live.
Ruminant's digestionIn order to be able to digest cellulose which is the principal component of grasses, plant-eating mammals, otherwise known as ruminants, have extra stomach compartments.
These stomach compartments exist to make the digestion of cellulose easier through a symbiotic relationship with cellulose-digesting bacteria.
The compartments house these symbiotic bacteria and partially chewed plants are stored in them to facilitate digestion.
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Is a 2 week blizzard a long term event? Is a flood from a hurricane a short term event?
Answer:
A blizzard can be a 2 week and intense snowstorm with very strong winds. Generally, blizzards form when cold polar air meets warm, moist air from lower latitudes, So yes a blizzard of 2 weeks can be considered long term event
Floods can occur within minutes or over a long period, and may last days, weeks, or longer.
Explanation :
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Please answer asap for chance of brainiest! How would you expect the rate of meat digestion to differ in an animal whose digestive tract had less of the enzyme pepsin?
Answer:
The four basic types of digestive systems in animals are monogastric, avian, ruminant, and pseudo-ruminant. Monogastric animals, such as swine, eat rations high in concentrates. The avian digestive system, found in poultry, is completely different from the other three types of digestive systems.
Explanation:
The four basic types of digestive systems in animals are monogastric, avian, ruminant, and pseudo-ruminant. Monogastric animals, such as swine, eat rations high in concentrates. The avian digestive system, found in poultry, is completely different from the other three types of digestive systems.
Carnivores or meat eater, digestive system of them is very short because meat is very easy to digest, hence the level of acid in the stomach is high while the digestive system of herbivores are long so their digestion is slow and the level of acid in the stomach is high.
Who are Carnivores and Herbivores?A carnivore is an organism that eats meat, or the flesh of animals. Sometimes they are also called hunters while some prey are called prey. Carnivores are a major part of the food web.
A herbivore is an organism which feeds on plants, ranges from in small size tiny insects such as aphids to large, lumbering elephants to large animals like cow, buffalo . Herbivores are a major part of the food web.
Herbivores eat only plant or plant products like sheep, cow, goat, etc. Carnivores are those who can eat animals only, for example lions, tigers, etc.
Thus, Carnivores or meat eater, digestive system of them is very short because meat is very easy to digest, hence the level of acid in the stomach is high while the digestive system of herbivores are long so their digestion is slow and the level of acid in the stomach is high.
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What do plantations or farms help people to live?
Answer:
Plantations and farms provide food for people so there won't be starvation
Which of the following would be considered a biotic factor in an ecosystem?
water
flower
fog
soil
Answer:
flower
Explanation:
biotic is a living organism including plants of any type fog spil and water are not living
The amount of glucose in the bloodstream is increased by the hormone.
Answer:
Glucagon, a peptide hormone secreted by the pancreas, raises blood glucose levels.
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Awnser the science problem
Answer:
okay
Explanation:
1. When different forces have the same magnitude but go in oppisate direction
2.oppisate direction
3. speed and time
Which of the following statements about the use of antibiotics is NOT true?
Bacteria become resistant to the antibiotics.
O
In the past, they were often prescribed for viral infections which increased the chance
of resistance in the patient.
O Can lead to harmful effects such as becoming addicted to antibiotic treatments.
Antibiotics used in farm animals can travel up the chain increasing the chance of
resistance in consumers.
the second option I m not to sure
explain each of the following diffusion happens faster when the temperature rises
Answer:
Diffusion is the transport of particles from an area of high concentration to an area of low concentration.
Explanation:
So, with that being said, the higher the temperature is, the more Kinetic Energy the particles will have, meaning they will move to different areas of concentration at a faster rate.
During mitosis, the X shaped figures that can be seen in prophase, anaphase and metaphase are called_______.
Answer:
chromosomes probably....... because X shaped ( are usually condensed form of chromatin) which divide .
Which of the following does water pollution affect: surface water, ground Water, or ocean water?
Answer:
Pollution affects surface water, groundwater, and ocean water
Explanation:
Pollution of surface water can cause degradation of ground-water quality and conversely pollution of ground water can degrade surface water. Thus, effective land and water management requires a clear understanding of the linkages between ground water and surface water as it applies to any given hydrologic setting.
What are amino acids used for? ASAP
Answer:
Break down food, grow, repair body tissue
Explanation:
Which portion of a neuron contains all of the organelles?.
Answer:
dendritic processes and spines
Explanation:
Human muscle cells can continue to make ATP even if the cells are depleted of oxygen. Muscle cells may use an anaerobic process called .
A.photosynthesis
B.cellular respiration
C.alcoholic fermentation
D.lactic acid fermentation
State two features which are only found in dicotyledonous plant
spring tides happen 2 times each month at the ___ and __ phases.
neap tides happen 2 times each month at the ___ and __phases.
answers?
This is defined as the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon
and sun.
The Spring tides occur during new and full moon phases while the Neap tides occur during the first and third quarter moon phases.
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The end of the muscle that is attached to a bone or other structure that will move during contraction is called the ____________ .
Answer:
Tendon
Explanation:
Bellwork: of the locations of earthquakes over the past 10 years were plotted on a world map, which of the following would be observed?
A. Earthquakes occur with the same frequency everywhere on Earth.
B. Earthquakes generally occur along the edges of tectonic plates.
C. Earthquakes most frequently occur near the middle of continents.
D. Earthquakes do not seem to occur in any consistent pattern.
Answer: B.
Explanation:
It's not A, because earthquakes happen at different magnitudes depending on how the plates shift beneath them.
It's not C, because tectonic plates are scattered among the earth.
It's not D, since the pattern of earthquakes are dependent on the shifts of tectonic plates.
It's B because tectonic plates are the reason earthquakes happen. Everytime they shift or move, an earthquake occurs. There may be some earthquakes that are not near tectonic plates but the majority are, which is why the question uses the word "generally occur."
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What happens when the trade winds from South America break down?
Answer:
As a result of the reduced trade winds, warmer water from the western Pacific surges eastward, flattening the sea level. The thermocline in the eastern Pacific sinks as a result of the accumulation of warm surface water.
Explanation: