Final answer:
The statement that best describes science is that it cannot answer questions about right and wrong, as it is limited to material phenomena that can be observed and measured. Scientific knowledge is continuously building upon itself and can be revised with new evidence, enhancing rather than detracting from its reliability.
Explanation:
The statement that best describes science is that science cannot answer questions about right and wrong. Science is a systematic approach to understanding natural phenomena through observation and experimentation, creating testable explanations and predictions. However, there are limitations to what science can explain. Questions that relate to morality, aesthetics, or spirituality fall outside the scope of scientific inquiry because they are not material phenomena and hence, cannot be observed or measured in the same way physical events can.
Moreover, scientific knowledge builds upon itself but can always be revised with new evidence or perspectives. While observations in science do not need to be made with the eye—telescopes, microscopes, and other instruments are often used—scientists may draw conclusions from indirect observations or using theories to explain unobserved phenomena. However, for something to be scientifically tested, there has to be some form of observable effect or consequence that can be measured. For instance, black holes cannot be seen directly, but their existence is confirmed by the gravitational effects they have on surrounding matter.
In terms of susceptibility to being disproven, frontier science, which deals with brand-new discoveries or models, is generally more prone to revision than established consensus science. Lastly, it's important to understand that a dramatic change in scientific understanding is called a scientific revolution, and this demonstrates that while scientific ideas may change, this flexibility enhances their reliability rather than detracts from it. Science is indeed a process, and a scientific law describes what happens under certain conditions based on repeated empirical evidence.
Which statements indicate what the fossil record suggests about evolution on earth?
Answer:
Life on Earth started when water formed on Earth
Explanation:
took test
When matter from plants and animals decay, microorganisms responsible for the decomposition process respire. Is that photosynthesis or cellular respiration?
When microorganisms that help in the decomposition of decaying matters from plants or animals respire it is called : Cellular respiration
Cellular respiration is the breaking down of food molecules by organisms with the use of oxygen in order to get the required energy they need to function properly. As the microorganisms break down the matters they make use of oxygen as they respire.
While photosynthesis occur only in green plants, cellular respiration occur in both plants and animals therefore the process of respiration seen in the microorganisms is termed as cellular respiration
Hence we can conclude that When microorganisms that help in the decomposition of decaying matters from plants or animals respire it is called : Cellular respiration .
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What process combines lighter elements to produce heavier elements, and occurs in the core of the Sun and other stars, producing ultraviolet and visible light?
The correct answer is a fusion reaction.
In the process, the energy is discharged when two light atomic nuclei are combined together to produce one heavier atom. This procedure provides the energy that powers the Sun and other stars, in the process combination of hydrogen nuclei takes place to generate helium.
In order to attain high fusion reaction rates, that is, to produce fusion as a beneficial source of energy, the two kinds of hydrogen, that is, tritium and deuterium need to be heated over the temperatures of 100 million degrees Celsius, and at these temperatures, the fuel turns into a plasma.
does water and glucose get recycled during the process of photosynthesis? explain.
The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, the oxygen will be combined with hydrogen to form water. So no water does not get recycled only glucose is.
earth science questions(again)
1 - c 2- d 3- b if these are incorrect please let me know so I can add it to my knowledge
Thanks
1. Earthworms
2. Particle size
3. Plants
Hope this Helps!!
Which series correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group?
A. species, genus, family, order, class, phylum, kingdom, domain
B. domain, kingdom, phylum, class, order, family, genus, species
C. species, genus, family, class, order, phylum, kingdom, domain
D. domain, kingdom, phylum, order, class, family, genus, species
Which series correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group?
Answer - B. domain, kingdom, phylum, class, order, family, genus, species
The broadest group to the most specific group is Domain, kingdom, phylum, class, order, family, genus, species.
What is Taxonomy?This can be defined as a branch of science concerned with classification of organisms as a result of shared characteristics.
The broadest level is Domain and the most specific is species thereby making option B the most appropriate choice.
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Why did pasteur’s is work lead to a change in the modern cell theory
His work, which was documented and repeatable, contradicted the accepted cell theory, so a change in the theory was required.
Answer:
His work, which was documented and repeatable, contradicted the accepted cell theory, so a change in the theory was required.
Explanation:
Cell theory prior to Pausteur's experiment argued that cells could continually and spontaneously originate from nonliving matter. This theory was called abiogenesis and was refuted after Pasteur's experiments.
Adept of the biogenic theory, Louis Pasteur in 1861, through an experiment, was able to conclusively demonstrate the impossibility of spontaneous generation of life (hypothesis so defended by the abiogenists), ie, the origin of life is only possible from living matter, from a preexisting living being.
In the experiment, Pasteur added nutritious broth to an elongated necked glass flask. He then heated the neck, giving it a curved tube shape (swan neck). After modeling, it proceeded to boil the broth, subjecting it to a temperature until the sterile state (absence of microorganism), but allowing the broth to have contact with the air.
After boiling, leaving the flask to rest for a long time, he noticed that the liquid remained sterile. This was possible due to two factors:
The first was due to the physical obstacle caused by the sinuosity of the neck. The second is caused by the adhesion of impurity particles and microorganisms to the water droplets formed on the inner surface of the neck during steam condensation, emitted by heating and cooling when at rest.
After a few days, checking for non-contamination, Pasteur broke the neck, exposing the inert broth to airborne microorganisms, favoring suitable conditions for germ proliferation.
This scientist, besides contributing to the end of the abiogenist mistake, also developed, from the application of simultaneous heating and cooling, the pasteurization technique widely used for food preservation.
Which of these provides evidence from developmental biology of a shared evolutionary history?
A. The skeletal structures of a leg of a horse and a flipper of a whale are very similar.
B. Both snakes and dogs have pelvic bones even though they are vestigial structures in the snake.
C. Both lobsters and frogs go through metamorphosis as a process in their life cycle.
D. The DNA sequences of the cytochrome c genes in chimpanzees and spider monkeys are over 90% identical.
Final answer:
The correct answer is Option B, where the presence of vestigial pelvic bones in both snakes and dogs suggests a shared evolutionary history, highlighting homologous structures that descend from a common ancestor.
Explanation:
The question asks for evidence from developmental biology that supports a shared evolutionary history among different organisms. Among the given options, the one that provides such evidence is the presence of vestigial structures. Specifically, Option B states that both snakes and dogs have pelvic bones, even though these are vestigial in snakes, indicating that snakes descended from ancestors with legs. Such structures suggest a common ancestor and thus provide evidence for evolution according to the principle of homology.
It is important to differentiate homologous structures from analogous structures. Homologous structures share a common ancestral origin even if their functions have diverged, while analogous structures have similar functions but do not stem from a common ancestor and are the result of convergent evolution. For example, despite having similar body shapes, dolphins and fish exhibit analogous structures optimized for moving through water, but they do not indicate a recent common ancestor. Vestigial structures, however, do provide a clear indication of a shared evolutionary history.
Contact lens solution is described as a sterile, buffered, isotonic aqueous solution. Explain the importance of the adjectives buffered and isotonic to the person buying the solution
A contact lens is a lens placed on the cornea of the eye.
Importance of buffers in contact lens products:
Buffers: They aim to keep the pH of the solutions at values between 6.6 and 7.8 in order to maintain the lens parameters and the effectiveness of the solutions. They are made by the combination of an acid and its sodium salt (phosphate and acetate for example). Borate and citrate buffers are used.
Importance of isotonicity in contact lens products:
The solution composed by isotonic saline solution.
Isotonia is expressed by osmolarity or cryoscopic lowering
- 0.236 to 0.446 mOsmoles / l (increases during the day)
- If the osmolarity of the mixture is different from that of the tears, it causes discomfort and irritation
• Increased tear secretion
• Increase the blink frequency
- If hypotonia, entry of water to the epithelial cells, if hypertonia: inverse
- Osmolarity restored 1 or 2 minutes after instillation
Final answer:
Buffered and isotonic solutions are crucial for maintaining stability and preventing irritation in contact lens solutions.
Explanation:
Buffered solutions help maintain a constant pH level by resisting changes in acidity or alkalinity, ensuring stability for the contact lens solution. Isotonic solutions have the same concentration of solutes as bodily fluids, preventing irritation or damage to the eye when using the contact lens solution.
Interesting facts about rainforest biome
1. Rainforests only cover around 2 percent the total surface area of the Earth, but really about 50 percent of the plants and animals on the earth live in the rainforest.
2. There are two different types of rainforests, and they include both temperate and tropical. The tropical rainforests are the ones that are most commonly found around the world.
3. A fifth of our fresh water is found in tropical rainforests, the Amazon Basin to be exact.
4. Within four square miles of tropical rainforest, you will find 1500 flowering plant species, 750 types of trees, and many of these plants can be helpful in combating cancer.
5. Rainforests are threatened each and every day, especially by practices such as agriculture, ranching, logging and mining.
Hope this helps!
~Starr
Final answer:
Tropical rainforests are the most biodiverse terrestrial biome, characterized by high species diversity and unique vegetation. They are under threat from logging and deforestation, impacting biodiversity and the development of new medicines.
Explanation:
Tropical Rainforest Biome
Tropical rainforests, also known as tropical wet forests, are found in equatorial regions and are the most biodiverse terrestrial biome. These rainforests are characterized by their high species diversity, with a wide variety of plants, animals, and other organisms.
They are often referred to as nature's pharmacy due to the potential for discovering new drugs hidden in the chemicals produced by the diverse organisms. Rainforests have spreading roots, broad leaves that fall throughout the year, and they are known for their evergreen vegetation.
In terms of habitat loss, tropical rainforests are under threat from logging and deforestation for agriculture, with a significant portion of these biomes already destroyed. The destruction of rainforests poses risks to biodiversity, food production, water sources, and the development of new medicines.
A code of conduct _____. outlines ethical behavior explains the punishment for fraud describes how to make honest mistakes lists the steps in the scientific method
Answer:
i think its a : outlines ethical behavior
Explanation:
Answer:
(A) A code of conduct outlines ethical behavior.
Explanation: A code of conduct is a set of rules outlining the norms, rules, and responsibilities or proper practices of an individual party or an organisation.
If the Moon has soil similar to Earth, then the Moon may have come from Earth. Which question best matches this hypothesis?
Which process must occur for a muscle to be able to relax?
The process of muscle relaxation begins when signaling from the motor neuron stops. This event causes repolarization of the sarcolemma and T-tubules and closes the voltage-gated calcium channels in the sarcoplasmic reticulum (SR). As a result, Ca+ ions are then pumped back into the SR, which causes the tropomyosin to re-cover the binding sites on the actin strands.
When the amount of ATP runs out, the muscle also relaxes.
Answer:
The muscles exhibit the tendency to relax by a procedure known as relaxation.
Explanation:
After the stimulation of nerve takes place, the process is known as relaxation occurs. The association between the actin and myosin gets dissociated when the pumping of calcium takes place back into the sarcoplasmic reticulum. As the actin and myosin return back to their unbounded condition the relaxation of muscles takes place.
A family can save over 50,000 gallons of water per year by recycling graywater." The most reliable source of this information is a plumber salesman scientific website journalist
Answer:
scientific website
Explanation:
Gray water can be defined as the household wastewater which comes out from bath water or showers, laundry water, lavatory (basin) water, and untreated kitchen and washroom water.
But by treating these gray water we can save a lot of water and the water can be made to use for other purposes such as for gardening or other things which do not require clean water. But cleaning or treatment methods of such water is very expensive.
So this information can be a useful source for a scientific website where such different treatment methods of gray water may be published.
Answer:
scientific website
Explanation:
I got it right on the test :)
Many local agencies work closely with the EPA to monitor pollution on a local level.
True or False?
The given statement is true.
The prior and the foremost mission of EPA is to safeguard the environment and human health. Right from the start of its initial day, protecting the environment and ensuring a healthy population has been a major goal of EPA. It exhibits a strong history of involving stakeholders like tribal, state, and local agencies, along in its work.
In order to strengthen association and engagement with public health professionals at the state and local levels, the EPA's Office of Research and Development is cooperating with various partners, which comprise the American Public Health Association, The Association of State and Territorial Health Officials, The National Environmental Health Association, The National Association of County and City Health Officials, and The Association of Public Health Laboratories.
These associations are demonstrating positive influences. As functioning with these partners, EPA is enhancing outreach and training for local public health professionals on the influences of cardiovascular health and air pollution and various other things.
Which of the organisms is most likely 50 meters in size? Lizard, tree, ant, or bacteria.
50 meters is a length too big for any existing animal on Earth. Many trees achieve 50 meters in hight though.
Hope it helped,
BioTeacher101
For such a great length there is no recorded lizard, ant, or bacteria so your answer (by process of elimination) you would get a Tree because some tree's have exceeded that limit of 50 meters.
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All organisms have adaptations for their environment. Identify two adaptations that could be useful for organisms that live in a desert biome but not in a tundra biome. Explain your reasoning.
The deserts are the regions of the lands, where there is a little precipitation and the temperature is generally too high during the day.
In the desert biome, the animals are adapted to dissipate heat to the environment, which make them remain cooler in the hot days. They have long appendages and long extremities, such as hear, which help them in constantly transferring the heat in their surrounding. Some animals lack fur, which allow them to remain cool, as the presence of fur would not allow the dissipation of the heat to the atmosphere.
The tundra biome is very cold, and the animals living there must have the tendency to trap heat to remain hot in the cold climate. All the desert animals are adapted to dissipate heat to the environment, so, they cannot trap heat, which makes them unfit survive in colder climates.
The organisms in a desert biome must have wide feet as as to wade through sand, this is not necessary in a tundra biome.
The term biome refer to a zone of life found on earth. The descriptions of tundra and desert biomes are shown as follows;
A tundra biome is a cold region in which trees are absent and living organisms have to survive under very cold conditions.A desert biome is covered mostly with sand and has alternating hot and cold conditions in the day and in the night.The organisms in a desert biome must have wide feet as as to wade through sand. This is not necessary in a tundra biome composed mostly of snow. Also, in a desert biome, organisms have hairy eyes to keep away sand. This is not required in a tundra biome.
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A population of western skinks, a type of lizard, lives in a grassland habitat along the base of a mountain range. The construction of a multi-lane highway will divide the habitat into two separate regions. How will the construction of the highway most likely affect the western skink population?
A. The western skink population size would decrease by half, reducing the probability that the population will evolve and speciate.
B. Western skinks would become an invasive species in one of the two regions, so the total population size would increase.
C. Western skinks would become better able to find unrelated mates, decreasing the population's susceptibility to diseases.
D. The western skink population would be separated into two groups, and genetic diversity would decline in each group.
Answer:
The most appropriate answer would be D. The western skink population would be separated into two groups, and genetic diversity would decline in each group.
It can be explained with the help of a bottleneck effect due to which population size decreases suddenly due to events like a natural disaster, habitat destruction et cetera.
The construction of the multi-lane highway would have destroyed the natural habitat of western skinks and separate them into two populations.
The separation of a population along with the destruction of habitat would result in a severe decrease in the population size of western skinks.
Consequently, the genetic diversity would also decrease.
Answer:
Option D
Explanation:
This case of western skink is an example of geographical isolation which reduces the gene pool and hence the genetic diversity.
The entire population of western skink gets divided into two sub population. Now these two sub-populations start living in two different geographic entities due to which they evolve differently and after a long course of period if species from these two sub population are brought closer for mating then there shall be no mating due to variation in mating preferences.
Hence, option D is correct
How do phosphates influence biotic factors
Phosphates, in the form of phosphate ions (PO₄³-), influence biotic factors by serving as an essential nutrient for living processes and becoming available to terrestrial and marine food webs. The release of phosphates through weathering of rocks and volcanic activity plays a key role in the phosphorus cycle. Phosphorus, often a limiting nutrient, is necessary for growth in aquatic ecosystems.
Explanation:Phosphates, in the form of phosphate ions (PO₄³-), play a crucial role in influencing biotic factors in ecosystems. Phosphorus is an essential nutrient for living processes, making up components of nucleic acids, phospholipids, and supportive structures like bones. In aquatic ecosystems, phosphorus is often a limiting nutrient necessary for growth.
Phosphates are released into the environment through weathering of rocks and volcanic activity, entering soil, water, and air. From there, it becomes available to terrestrial and marine food webs. Phosphate dissolved in ocean water cycles into marine food webs, and some of it falls to the ocean floor to form sediment. Phosphate also reciprocally exchanges between the ocean and marine ecosystems, although this process is very slow.
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Phosphates influence biotic factors through their role as an essential nutrient in living processes, particularly in aquatic ecosystems.
Explanation:Phosphates influence biotic factors primarily through their role as an essential nutrient in living processes. Phosphorus is a major component of nucleic acids and phospholipids, making it crucial for cell function and growth. In aquatic ecosystems, phosphorus is often a limiting nutrient, meaning its availability can affect the growth and abundance of organisms.
For example, in freshwater ecosystems, a lack of phosphorus can limit the productivity of plants, which affects the entire food web. In marine ecosystems, phosphate dissolved in ocean water cycles into marine food webs, supporting the growth of phytoplankton and other primary producers.
In summary, phosphates play a vital role in influencing biotic factors by being an essential nutrient for growth and function in living organisms, particularly in aquatic ecosystems.
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what is the benefit of publishing in the journal
could become a new law
Describe prokaryotic cells. Include general characteristics and indicate the one feature that eukaryotic cells have that prokaryotic cells do not.
Answer:
Prokaryotic cells are organelles that live without a nucleus. A feature that eukaryotic cells have that prokaryotic don't is a nucleus. The prokaryotic just float freely.
Explanation:
I understand it's really late but the other explanation is a little plain and doesn't answer the whole question. Good, but I think you'd might think this will work better to understand the question or well answeing the question. ( I do hope this helps you out )
After 14 years of age do males or females have a higher red blood cell coint
It is normally 45% for men and 40% for women
PLZZ HELP!!!!!
Atrazine is an herbicide that prevents plant growth by inhibiting photosynthesis. Atrazine works by binding to proteins in the electron transport chain of photosystem II. Once atrazine binds to the proteins, electrons can no longer travel down the chain to reach photosystem I.
Based on this information, how does atrazine stop plant growth?
A. It prevents the formation of NADH and FADH2, which are needed by the light-independent reactions to fix carbon.
B. It prevents chlorophyll from creating electrons, which are needed by the light-dependent reactions to make sugars.
C. It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars.
D. It prevents water from releasing oxygen, which is needed by the light-dependent reactions to fix carbon.
The correct answer is option C, that is, it prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars.
The herbicide atrazine combines with the D1 protein and inhibits the binding of plastoquinone. By obstructing the binding of plastoquinone, the procedure of photosynthetic transfer of electron is disturbed, and thus, the production of ATP and NADPH in the chloroplast gets compromised.
This leads to an incapacity to fix carbon dioxide and generate the nutrients required for the plant to live. The block in the transfer of electrons also results in an oxidative stress and the production of radicals that lead to brisk cellular destruction.
Answer:
C. It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars.
When are fibers considered individual evidence? A) when they are torn B) when the yarn is twisted C) when the yarn is knotted D) when two or more different fibers are blended
The correct answer is: D) when two or more different fibers are blended.
During the crime investigation fiber analysis is an important factor. There is a possibility for fibers to be exchanged (fiber transfer), for example between the suspect and victim, if they were in physical contact at a crime. Fiber transfer depends on the type of clothing, duration of physical contact that occured between the suspect and victim, weather..
The correct answer is when they are torn.
HELP ASAP PLEASE!!!! WILL MARK BRAINLIEST!!!!!!!!!!
All of these things occur during interphase except __________________.
1.
The cell prepares for division by duplicating its chromosomes within the nucleus (replication).
2.
Only occurs during cell division.
3.
A phase of rapid growth occurs.
4.
Cell division is not occurring.
An artist is reviewing plans for a granite statue. The statue will be displayed outdoors. How could the plans be revised to reduce the long-term effects of chemical weathering?
A) increasing the size of the statue
B) hollowing out the center of the statue
C) reducing the surface area of the statue
Answer:
reducing the surface area of the statue
Explanation:
"Surface area, rock characteristics, and climate are the three factors that affect chemical weathering. Decreasing the surface area of the statue—such as by sculpting features in less detail—would reduce the exposure to air and water."
Glucose provides energy for cells. Different cells have different mechanisms for glucose intake. Intestinal cells contain proteins that transport glucose against its concentration gradient. These proteins couple the movement of glucose to the movement of sodium down its concentration gradient. Red blood cells have transporter proteins embedded in their membranes. When bound by a glucose molecule, these proteins change shape and allow glucose to move down its concentration gradient into the cell. Based on this information, what type of transport is used for glucose in blood and intestinal cells?
The answer is; active transport in small intestines and passive transport in blood cells
In passive transport, no energy is required to transport the glucose molecules because they spon6tanosuely move down their concenntrati0n gradient. The transport protein in the blood cell membrane only enables the molecule to pass across the hydrophobic layer of lipid in the membrane and into the cell.
In active transport, energy is required in the transportation of glucose against their concentration gradient (glucose is highly concentrated in the lumen of the intestines than in the bloodstream). Sodium/Potassium (Na+/K+) pumps play a significant role in the transport of glucose. When sodium diffuses back into the cells, they drag along glucose molecules with them across the sodium-glucose transporter protein.
Answer: active transport in small intestines and passive transport in blood cells
Explanation: It is a Passive Form Of Transport In Blood
Which form of precipitation is likely to occur when a layer of air with temperatures above freezing overlies a subfreezing layer that is near the ground?
the answer is SLEET hope it helps :)
The two heavenly bodies which were predicted to exist before they were sighted are _____ and _____.
Haley’s comet
Neptune
Pluto
Uranus
Io
Multiple answers
Answer:
Neptune Pluto
Explanation:
Thats just the answer
Answer:
Neptune
Pluto
Explanation:
please mark brainliest
Knowing nothing else,what could the relative age of two rocks tell you about them
Relative age is defined as the geological age of a fossil organism or a rock compared to the ages of other organisms and rocks around them.
The question is - Knowing nothing else, what could the relative age of two rocks tell you about them?
Answer: The relative age will only tell that one rock is older than the other.