A variety of finch species within the Hawaiian Islands have acquired different types of beaks needed for utilizing specific food resources. What is the likely process by which these different species of finches came about
Answers
The likely process by which different species of finches with different types of beaks came about in the Hawaiian Islands is adaptive radiation.
Adaptive radiation refers to the diversification of a single ancestral species into multiple species that occupy different ecological niches. It occurs when a group of organisms colonizes a new environment with diverse available resources and undergoes adaptive changes to exploit those resources more effectively.
In the case of the finches in the Hawaiian Islands, a common ancestral finch species likely colonized the islands. The islands offered a variety of habitats and food resources, creating different ecological niches. Over time, the finches faced different selective pressures related to the available food sources. Those individuals with variations in their beak shapes and sizes that allowed them to efficiently exploit specific food resources had a higher chance of survival and reproductive success.
Natural selection played a crucial role in this process. Finches with beak variations that were better suited for accessing and consuming specific food sources had a selective advantage over others. As a result, those individuals were more likely to survive, reproduce, and pass on their advantageous traits to future generations. Over many generations, this led to the development of distinct finch species with specialized beak adaptations for different food resources.
Thus, through adaptive radiation driven by natural selection, the initial colonizing finch species diversified into multiple species with different beak types, each adapted to utilize specific food resources available in their respective habitats within the Hawaiian Islands.
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Related Questions
Giraffes, camels, and horses share some traits, although they vary in other traits. Which statement accurately describes the evolution of these species?
Answers
Answer:
If there are options for this question, I couldn't find them online but I can tell you that one statement that describes the evolution of these species is that each of them shared an ancient ancestor.
Explanation:
The ancient common ancestor that these species share is that animal, in this case, from which all species descend.
It is the only species of living being that has evolved over the years and its original traits have varied, which led to the creation of all these species. That is why some of those traits will still be shared by them, while others, due to evolution, will not.
That is why we could say that these animals belong "to the same family" since they all come from the same ancestor.
what term refers to the fusion of two haploid gametes, each containing 23 chromosomes, producing a zygote that contains 46 chromosomes?
Answers
fertilization refers to the fusion of two haploid gametes, each containing 23 chromosomes, producing a zygote that contains 46 chromosomes.
A mature male gamete and a mature female gamete are fused during fertilization to create a single cell, or zygote. Both the sperm, which is a male gamete, and the ovum, which is a female gamete, are haploid and have 23 chromosomes. fertilization Humans typically have 46 chromosomes, or 23 pairs of them in each cell. The appearance of twenty-two of these pairs, known as autosomes, is the same in both sexes. The 23rd pair of sex chromosomes differs between men and females.
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What do mitochondria do in healthy cells, and ny had defective mitochondria caused
David to lose his vision?
Answers
Muscle weakness, intolerance to exercise, decreased hearing and vision, ataxia, seizures, learning difficulties, heart problems, diabetes, and poor growth are the hallmark signs of mitochondrial myopathy.
What will happen if have a defective mitochondria?Defects in mitochondria, the body's energy producers that may be found inside practically all cells, are the root cause of mitochondrial disorders. mitochondrial myopathies are mitochondrial diseases that create noticeable muscular issues, while mitochondrial encephalomyopathies are mitochondrial disorders that cause noticeable muscular and neurological abnormalities.Several of the syndromes linked to mitochondrial disease include Barth syndrome, Chronic progressive external ophthalmoplegia, Kearns-Sayre syndrome, Leigh syndrome, Mitochondrial DNA depletion syndromes , Mitochondrial encephalomyopathy, Lactic acidosis, and stroke-like episodes, Mitochondrial neurogastrointestinal encephalomyopathy, Myoclonus epilepsy with ragged red fibers, Neuropathy, ataxia, and retinitis pigmentosa , Pearson syndrome.The mtDNA mutation that causes NARP also causes MILS, and the two disorders can coexist in the same family. NARP can cause developmental delay, seizures, and dementia in addition to the primary symptoms for which it is called.To learn more about mitochondria refer :
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Double fertilization followed by the formation of endosperm is unique to angiosperms. How does double fertilization in the Gnetophyta, Ephedra and Gnetum, differ from that in angiosperms?
Answers
Double fertilization in Gnetophyta (Ephedra and Gnetum) differs from that in angiosperms in a few ways.
First, double fertilization occurs in just one cell in Gnetophyta, the central cell of the embryo sac, while in angiosperms the two sperm cells are transferred to two different cells. Second, the sperm cells in Gnetophyta differ from those in angiosperms in that the first sperm cell is large, while the second sperm cell is much smaller.
Third, the two sperm cells in Gnetophyta are transferred to the same nucleus, while in angiosperms, the two sperm cells are transferred to separate nuclei. Fourth, in Gnetophyta, the two sperm cells do not fuse together to form a triploid endosperm, unlike in angiosperms where the two sperm cells fuse to form a triploid endosperm. Lastly, in Gnetophyta the polar nuclei do not undergo the same type of fusion as they do in angiosperms, thus forming a diploid endosperm.
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write a plan to investigate the effect of temperature on the rate of digestion of starch by the enzyme amylase
your plan should include:
•a hypothesis
•selection, and justification of equipment, techniques or standard procedures
•health and safety associated with the investigation
•a step-by-step method for data collection and analysis to test the hypothesis including:
-quantities to be measured
-number and range of measurements to be taken
- how equipment may be used
-control variables
-brief method for data collection analysis
(12 marks)
Answers
Here is a possible plan for investigating the effect of temperature on the rate of digestion of starch by the enzyme amylase:
Hypothesis: Increasing the temperature will increase the rate of digestion of starch by the enzyme amylase.
Equipment and techniques:
1. Microscope and microscope slides
2. Hot plate or incubator to control temperature
3. Stopwatch or timer
4. Starch solution
5. Amylase enzyme solution
6. Water bath to maintain temperature
Justification: The microscope and microscope slides will be used to observe the digestion of starch by amylase. The hot plate or incubator will be used to control the temperature of the reaction. The stopwatch or timer will be used to measure the time required for the starch to be digested. The starch solution and amylase enzyme solution will be used to carry out the reaction. The water bath will be used to maintain the temperature of the reaction.
Health and safety:
1. Wear protective goggles to protect the eyes from splashes
2. Handle the solutions and enzymes carefully to avoid spills or splashes
3. Follow proper laboratory safety guidelines, such as not eating or drinking in the lab
Step-by-step method for data collection and analysis:
1. Set up the microscope and prepare the microscope slides.
2. Prepare several starch solutions with different temperatures, using the hot plate or incubator to control the temperature.
3. Add a drop of amylase enzyme solution to each starch solution.
4. Place the slides under the microscope and start the timer.
5. Observe the digestion of the starch at regular intervals, using the stopwatch or timer to measure the time required for the starch to be digested.
5. Record the time required for the starch to be digested at each temperature.
6. Repeat the experiment several times to obtain a reliable average.
7. Plot the data on a graph, with temperature on the x-axis and time required for starch digestion on the y-axis.
8. Analyze the data to determine the effect of temperature on the rate of starch digestion.
Control variables:
1. The concentration of the starch solution should be kept constant.
2. The concentration of the amylase enzyme solution should be kept constant.
3. The pH of the solutions should be kept constant.
4. The volume of the solutions should be kept constant.
Brief method for data collection and analysis:
1. Collect data by observing the digestion of starch at different temperatures and recording the time required for the starch to be digested.
2. Plot the data on a graph and analyze the trend to determine the effect of temperature on the rate of starch digestion.
3. Compare the results with the hypothesis to determine whether the hypothesis is supported or not.
A scientist who digs for and studies fossils is called a __________. (1 point)
Fossils can be the __________ or __________ of dinosaurs and are formed by __________ and __________. (4 points)
The tree sap that insects can get caught and fossilized in is called __________. (1 point)
When an animal dies, its remains are either __________ or they __________ away. (2 points)
Over time, the remains of an animal are covered with mud and sand called __________. (1 point)
List two ways in which the skeletons of animals get to the surface. (2 points)
In what kind of rocks do we find fossils? (4 points)
Answers
A scientist who digs for and studies fossils is called a __________. (1 point)
paleontolosits
Fossils can be the __________ or __________ of dinosaurs and are formed by __________ and __________. (4 points)
? remains ? ?
The tree sap that insects can get caught and fossilized in is called __________. (1 point)
ambeytide?
When an animal dies, its remains are either __________ or they __________ away. (2 points)
eaten or swept
Over time, the remains of an animal are covered with mud and sand called __________. (1 point)
?
for the last 2 im not sure
hope this helps
i tried to answer everything as best as i could
but there r many that im not sure
sorry if the answers that i provided r wrong
have a good day
:)
Which of the following represents an isotope for lithium (73LI)?
a)35Li
b)43Li
c)37Li
d)34Li
Answers
Which is an ABIOTIC factor in biomes? *
A. average temperature
B. kinds of trees
C. moss and algae
D. number of insect species
Answers
Answer:
D. number of insect species
Explanation:
I got it correct
Which best describes the scientists who contribute to our current body of knowledge?
Answers
Scientists are driven by curiosity, possess critical thinking skills, and are dedicated to the pursuit of knowledge. They contribute to our current body of knowledge through meticulous research, collaboration, and a commitment to evidence-based reasoning, ultimately advancing our understanding of the natural world and shaping the progress of scientific discoveries.
Scientists who contribute to our current body of knowledge are individuals dedicated to the pursuit of understanding and expanding our understanding of the natural world. They are driven by curiosity, the desire to explore unanswered questions, and the passion for discovery.
These scientists possess several key characteristics. Firstly, they exhibit a strong scientific mindset, which includes critical thinking skills, skepticism, and a commitment to evidence-based reasoning. They are meticulous in their research methodologies, conducting experiments, gathering data, and analyzing results with precision and rigor.
Additionally, scientists are often highly knowledgeable in their respective fields, having obtained advanced degrees and specialized training. They stay up-to-date with the latest research and developments in their areas of expertise, constantly expanding their understanding and building upon existing knowledge.
Scientists are also collaborative and actively engage in scientific communities. They share their findings through scientific publications, presentations at conferences, and discussions with their peers. They seek feedback, engage in constructive debates, and participate in interdisciplinary collaborations to tackle complex problems.
Moreover, scientists are resilient and persistent. They encounter setbacks, face challenges, and encounter failures along their scientific journey. However, they view these obstacles as opportunities for growth and learning, adapting their approaches and methodologies to overcome obstacles and advance their understanding.
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Humans have three types of cone cells in their eyes, which are responsible for color vision. Each type absorbs a certain part of the visible spectrum. Suppose a particular cone cell absorbs light with a wavelength of 579.nm. Calculate the frequency of this light. Be sure your answer has the correct number of significant digits.
Answers
The frequency of this light was found to be 5.17 x 10¹⁴ Hz and is expressed with the correct number of significant digits.
The frequency of the light with a wavelength of 579 nm can be determined by the equation: frequency (f) = speed of light (c) divided by the wavelength (λ). In this equation, c is a constant with a value of 2.9979 x 10⁸ m/s.
To determine the frequency of the light with a wavelength of 579 nm, the equation would be solved as follows: f = 2.9979 x 10⁸ m/s / 579 nm = 5.17 x 10¹⁴ Hz. This value is the frequency of the light with a wavelength of 579 nm and is expressed with the correct number of significant digits.
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HELP QUICK WHOEVER ANSEWRS FIRST GET 100 POINTS AND BRAINLYEST
04.03 Cell Structure and Functions Guided Notes
Objectives:
In the lesson, you will:
know the function of major organelles in plant and animal cells
compare and contrast the structure and function of major organelles of plant and animal cells
relate structure to function for the components of plants and animal cells
Big Ideas:
Key Questions and Terms
Notes
What are the two main types of cells? What is the difference between these cells?
Use the video to describe the function of each of the following cell structures:
Cytoplasm:
Nucleus:
Mitochondria:
Endoplasmic reticulum:
Ribosomes:
Golgi apparatus:
Vesicles:
Lysosomes:
Cell membrane:
What are organelles?
How are the functions of organelles in animal cells and those in plant cells similar and different?
Draw and label an animal cell.
Draw and label a plant cell.
Answers
Answer:
What are the two main types of cells?
- Prokaryotic
- Eukaryotic
What is the difference between these cells?
- Prokaryotic (no nucleus)
- Eukaryotic (contains a nucleus)
Draw and label an animal cell.
Pic included below
Draw and label a plant cell.
Pic included below
Explanation:
I hope this helps :)
Since more heat is being radiated down to Earth from the excess greenhouse gases in the atmosphere, scientists predict an increase in the amount and intensity of hurricanes in the Atlantic Ocean. What's happening in the atmosphere that will cause this change?
The ocean waters are cooling down as the ocean currents change
The ocean waters are heating up which leads to cooler, less dense air rising to form clouds
The ocean waters are heating up which leads to warmer, less dense air rising to form clouds
Answers
Answer:
global warming is causing it to change
Answer:
Explanation:
Global warming
Individuals with high blood pressure are at a higher risk for:OOOOstrokeaneurismheart attackAll of these choices are correct.
Answers
High blood pressure can place increased pressure on the walls of the blood vessels inside the brain, increasing your chances of developing an aneurysm. Also, it forces the heart to work harder to pump blood to the rest of the body. This causes the lower left heart chamber (left ventricle) to thicken. A thickened left ventricle increases the risk of heart attack, heart failure and sudden cardiac death. Moreover, blood vessels damaged by high blood pressure can narrow, rupture or leak. High blood pressure can also cause blood clots to form in the arteries leading to the brain, blocking blood flow and potentially causing a stroke.
So the correct answer is: All of thees choices are correct.
This weekend you are going camping with your closest friends and family. Thankfully, the layers of your skin will help protect you during this adventure. Discuss at least two ways each layer, the epidermis and dermis, may protect you on this excursion.
Answers
Answer:
Epidermis - barrier or protective layer
dermis- thermoregulator or maintain the temperature.
Explanation:
The two main skin layers that are present on the surface of the skin are the epidermis and the dermis layer (below the epidermis). These two layers are helpful in protecting from the excursion.
The epidermis layer is a protecting layer in general that acts as a barrier to protect the inner body from infection and also acts as the waterproofing layer.
The dermis regulates body temperature in an individual if the outer environment is too hot or cold, by sweat in a hot environment as it regulates the sweat glands.
An earthquake occurred at 6:35:10 am. At what time did the S-wave arrive at a seismic station 4000 km away?
Answers
Answer: Around 6:55:40 Am
Explanation:
The velocity of the S wave may depend on the density of the ground.
The speed can go from 1km/s to 8km/s, with an average velocity of 3.25km/s
Now, we can use the equation:
Velocity = distance/time.
Time = distance/velocity.
We have distance = 4000km
and velocity = 3.25km/s
time = 4000km/3.25km/s = 1230.77 seconds.
now, a minute has 60 seconds, so this is:
1230.77/60 = 20.5 minutes. or 20 minutes and 30 seconds
So the earthquake will reach the seismic station around
6:35:10 + 0:20:30 Am
6:55:40 Am
Suppose you have purified a population of red-fluorescent microtubules, stabilized them with taxol, and added them to a test tube containing green-fluorescent tubulin subunits under conditions that greatly favor polymerization. After a few minutes, you fix the microtubules to a slide and view the fluorescence. What would be the pattern of microtubule labeling? a. both ends will be labeled green, but the label will be shorter at the (-) end b. the entire length of all the microtubules will be labeled red c. only the (+) end will be labeled green d. only the (-) end will be labeled green e. both ends will be labeled green, and the label at each end will be equivalent
Answers
c. only the (+) end will be labeled green would be the pattern of microtubule labeling. The pattern of microtubule labeling would be e. both ends will be labeled green, and the label at each end will be equivalent.
This is because the green-fluorescent tubulin subunits will incorporate into both ends of the red-fluorescent microtubules, resulting in labeling at both ends that is equivalent. The stabilization of the microtubules with taxol will prevent depolymerization and result in a stable, fluorescent structure. As a result, the green subunits will be incorporated at both ends of the microtubules, resulting in equivalent labeling at each end.
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3. Lipids, proteins, polysaccharides, and nucleic acids are large polymers that make up the different
of our bodies. Which element can be found as the backbone of all of these macromolecules?
A.Phosphorus
B.Nitrogen
C.Carbon
D.Oxygen
Answers
Because all of the cells in a multi-cellular organism come from a single cell, all of its cells will have the same number of
Answers
Answer:
Chromosomes
Explanation:
Multicellular organism are organisms that have more than one cells in their body. However, from the very beginning of every living organism including multicellular organisms, only ONE cell is required. In the case of multicellular organisms, this one cell undergoes division by mitosis to form other cells.
Since the cells divide by mitosis i.e 1 forms 2, 2 forms 4 etc.,. each of the cells are genetically identical to one another. Hence, this means that all the cells will contain the same number of chromosomes in their genome. For example, a dog as a multicellular organism has cells that emanate from one cell. If that one cell contain 39 chromosomes, all cells in the dog will also contain 39 chromosomes.
Which statement describes a physical property related to the particles that make up a material? A. An iron nail has a reddish color because iron atoms on its surface combine with oxygen atoms B. A fruit has a sour taste because some of the compounds that make it up are acids. C. Salt crystals are hard and brittle because they are made up of atoms that combine by ionic bonding. D. A vegetable has a bitter taste because some of the compounds that make it up are bases.
Answers
Answer:
The correct answer would be C. Salt crystals are hard and brittle because they are made up of atoms that combine by ionic bonding.
Explanation: All the other ones are chemical changes because a new substance is formed.
The statement that describes a physical property related to the particles that make up material is as follows:
Salt crystals are hard and brittle because they are made up of atoms that combine by ionic bonding.Thus, the correct option is C.
What is Physical property?Physical property may be defined as a property of matter or substance that is not associated with alterations in its chemical composition.
An example of iron nails involves a chemical reaction to occur and a result of which chemical composition alters. Options B and D are naturally occurring phenomena that do not involve any physical manifestation.
Therefore, the correct option for this question is C.
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true or false? rock appears to be rising to the surface at each side of the sub-oceanuc rift valleys
Answers
The rock appears to be rising to the surface at each side of the sub-oceanic rift valleys True.
Many rift valleys are part of “triple junctions,” a form of divergent boundary in which 3 tectonic plates meet at about one hundred twenty° angles. fingers of the triple junction can cut up to form an entire ocean.
Rift valleys shape when tectonic plates beneath the Earth's surface diverge (or circulate far from each other in opposite directions). it's miles important to observe right here that rift valley formation, in contrast to rivers and glacial valleys, is entirely created as a result of tectonic plate motion.
Rift valleys are normally slim and long, some measuring masses of kilometers in duration. Their floors are relatively flat, owing in large elements of volcanic deposition and marine or lacustrine sedimentation. the edges of rift valleys drop steeply away within the shape of steps and terraces.
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Which statement correctly describes cancer formation?
Cancer is formed when people participate in risky behaviors.
Cancer is formed when cancer genes are inherited.
Cancer is formed when there are mutations in a number of genes.
Cancer is formed when people are exposed to cancer-causing agents.
Answers
Answer:
Cancer is formed when there are mutations in a number of genes.
Explanation:
Malignant tumors are gene diseases which do not mean that cancer is necessarily an inherited disease (only in 5-10% of cases the cancer is inherited) because the vast majority of other tumors are the result of somatic, ie secondary, mutations that lead to malignant transformation.
Only 2% of human diseases are monogenic (caused by a change in one gene). The remaining 98% of the disease is either polygenic (caused by a change in several genes at the same time) or epigenetic (caused by non-genetic or post-genetic disorders of cellular molecules).
changes in which two neurotransmitter systems are most likely involved in the hyperexcitability seen during withdrawal from chronic alcohol?
Answers
The two neurotransmitter systems most likely involved in the hyperexcitability seen during withdrawal from chronic alcohol are glutamate and gamma-aminobutyric acid (GABA).
What is glutamate?
Glutamate is an excitatory neurotransmitter that is responsible for increasing brain activity. As a result, alcohol, a central nervous system depressant, counteracts the effects of glutamate and slows down brain activity. When someone stops drinking, the excess glutamate in their system can result in seizures and other symptoms of withdrawal.
What is gamma-aminobutyric acid?
Gamma-aminobutyric acid, or GABA, is the opposite of glutamate. It's a calming neurotransmitter that slows down brain activity. Alcohol increases the amount of GABA in your system, which contributes to the relaxing effects of drinking. When a person stops drinking, they are left with insufficient GABA levels in their system, which can cause anxiety, tremors, and other withdrawal symptoms.
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effects of self-locomotion on the activity of place cells in the hippocampus of a freely behaving monkey pdf
Answers
The effects of self-locomotion on the activity of place cells in the hippocampus of a freely behaving monkey have been studied in place cells are neurons in the hippocampus.
When a monkey engages in self-locomotion, it actively moves around its environment, exploring different places. This self-locomotion has been found to have a significant impact on the activity of place cells.
Studies have shown that when a monkey is actively moving, the firing rate of place cells increases. This increase in firing rate indicates that the place cells are actively encoding the animal's current location in real-time. The firing patterns of place cells during self-locomotion provide important spatial information to the monkey about its surroundings.
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Which of the following is not a testable hypothesis?
a.Fertilizer A will make the KW variety green bean produce more beans.
b.Smart people like the same music.
c.Vitamin C relieves cold symptoms.
d.There is more than one species of African elephant.
helpppp
Answers
Answer:
I'd say B
Explanation:
answer B doesn't have any way to define what actually counts as "smart", so you wouldn't be able to test it.
answer A, you could run an experiment with fertilizer A on some plants, and no fertilizer on another.
answer C, you could give vitamin C supplements to some subjects, but not to others.
answer D, you could research or study elephants, and see if you find more than one species.
abiotic components of an ecosystem include a. only animal life b. only plant life c. living components only d. nonliving components only e. both living and nonliving components
Answers
The abiotic components of an ecosystem include:
D. Nonliving components only
Abiotic components are the nonliving factors that influence and shape an ecosystem. These can include temperature, sunlight, water, air, soil, and minerals. They play a crucial role in the functioning and dynamics of the ecosystem.
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Which best explains how and why scientific knowledge continually expanded and improved
Answers
Answer:
Which best explains how and why scientific knowledge is continually expanded and improved? The scientific process flows in one direction and finds only facts that support a scientist's original idea. The scientific process is cyclical so that new facts inspire questions that lead to new studies.
Explanation:
Brainlist???
Por qué cuando los niños son vacunados presentan síntomas de fiebre?
Answers
Answer:
Por lo tanto, el sistema inmunológico puede manejar la obtención de vacunas para desarrollar inmunidad a las enfermedades y combatir enfermedades menores al mismo tiempo. Las vacunas no empeoran los síntomas de la enfermedad, aunque pueden causar efectos secundarios leves, como fiebre leve o dolor o hinchazón en el lugar donde se aplicó la inyección.
Надеюсь это поможет
hypothermia occurs when the core body temperature falls below:
Answers
Hypothermia occurs when the core body temperature falls below 35 degrees Celsius or 95 degrees Fahrenheit.
Hypothermia is a condition where the body loses heat faster than it can produce it, resulting in a dangerously low body temperature. While the normal core body temperature is around 37 degrees Celsius or 98.6 degrees Fahrenheit, hypothermia typically occurs when the core body temperature drops below 35 degrees Celsius or 95 degrees Fahrenheit.
As body temperature decreases, various physiological and metabolic processes are affected, leading to impaired organ function and potentially life-threatening consequences. Symptoms of hypothermia include shivering, confusion, drowsiness, slowed heart rate, and even loss of consciousness.
Hypothermia can be caused by exposure to cold environments, prolonged immersion in cold water, inadequate clothing, certain medical conditions, or even certain medications. It is essential to seek medical attention and take immediate measures to warm the individual and prevent further heat loss when hypothermia is suspected.
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Compare and contrast the production of hydrogen through electrolysis and through the breakdown of methane
Answers
Answer:
Electrolysis is more expensive. Electrolysis is when water molecules break down into oxygen and hydrogen gas. Breakdown of methane contains carbon and releases CO2.
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