Final answer:
When scientists encounter evidence that contradicts current theories, they must either revise the theories or develop new ones. This can result in minor adjustments or significant paradigm shifts as seen with quantum mechanics or genetics. Science thus remains a robust, self-correcting mechanism for understanding the natural world.
Explanation:
Science is a continually evolving discipline that thrives on refinement and occasionally requires significant changes to its core theories. When scientists encounter new data that contradicts existing theories, it leads to a process of investigation and assessment. New data might result in the rejection, revision, or development of new theories if they repeatedly disprove or fail to explain certain phenomena or experimental outcomes. Theories must generate testable and falsifiable hypotheses, and when they no longer align with observed evidence, they are subject to change. Planetary formation models provide an example of this, where new discoveries of planetary systems unlike our own prompted revisiting and adjusting the standard models.
When conflicting evidence arises, scientists may engage in a cycle of hypothesis reformulation, experimentation, and debate until a consensus is achieved. In some instances, this can lead to a paradigm shift, a term coined by Thomas Kuhn, signaling a radical overhaul of foundational scientific ideas. Examples of paradigm shifts include the advancement from the indivisible atom concept to the understanding of subatomic particles, or the revisions to Mendel's laws of inheritance with the modern understanding of genetics. However, such shifts happen incrementally as scientists build on existing knowledge.
The scientific method is designed to accommodate new information, maintaining science as a self-correcting pathway to understanding the natural world. Scientists prioritize hypotheses based on their ability to explain data succinctly, predictively, and coherently. It is an ongoing, dynamic conversation between theory and data.
Convergent evolution suggests different organisms evolved _____ due to _____.
similarly; different environments
differently; different environments
differently; similar environments
similarly; similar environments
The answer is similarly; similar environments.
How do reflexes protect the body from injury
in what way can runoff be a problem
Excessive runoff can be problematic as it can lead to soil erosion, water pollution, and flooding. It can carry pollutants from farmland and urban areas into water bodies, damaging aquatic ecosystems and causing health problems for humans. Also, it can cause flooding and damage properties and endanger lives.
Explanation:Runoff, particularly when it becomes excessive, can cause several problems. For instance, it can lead to soil erosion, which degrades arable land, reducing its agricultural productivity.
Runoff can also carry pollutants (like pesticides and fertilizers from farmland and waste materials in cities) which end up contaminating water bodies such as rivers, streams, and eventually, oceans. This phenomenon, known as water pollution, can have detrimental effects on aquatic ecosystems and human health.
Additionally, excessive runoff can cause flooding, a serious risk to both property and lives in areas prone to this kind of event.
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Your body uses the nutrients from Fiber to keep your digestive track healthy.
True
or
False
what is the difference between an embryophyte and a spermatophyte?
Answer:
Embryophyte also known as land plants are the plants, in which zygote develops into an embryo and includes includes gymnosperms, angiosperms, bryophytes and pteridophytes.
Spermatophyte also known as phanerogams are the plants that forms seeds (sperma) rather than spores like gymnosperms (naked seeded plants) and angiosperms (seeds enclosed in ovary wall).
Many different parts of the brain work together to encode, store, and retrieve information as needed. The diagram below indicates three parts of the human brain that are involved in information storage.Which of these terms best describes the process by which the brain stores information that can be retrieved at a later time?
Answer:
memory
Explanation: got it right for the study island
Several instances of irregular digestion are listed in the table below. Condition Description Symptoms Heartburn Inability of the muscles at the end of the esophagus to close Burning sensation in throat Peptic ulcers An open wound in the lining of the stomach Sharp pain between chest and belly button, nausea Constipation Condition where a person has infrequent and uncomfortable bowel movements Infrequent bowel movements, nausea Lactose intolerance Inability to digest or break down the lactose in milk products Diarrhea, gas, nausea, and bloating Maria loves ice cream, but lately she has become aware that she feels nauseated after eating it. From which condition is Maria to suffering?
Answer:
c. lactose intolerance on edg.
Based on the given information, Maria is likely suffering from lactose intolerance.
What is lactose intolerance?Lactose intolerance is a digestive disorder characterized by the body's inability to fully digest lactose, a sugar found in milk and dairy products. It occurs when the small intestine doesn't produce enough lactase, an enzyme responsible for breaking down lactose into simpler forms that can be absorbed into the bloodstream.
When a person with lactose intolerance consumes lactose-containing foods or beverages, they may experience symptoms such as bloating, abdominal pain, diarrhea, and gas. These symptoms typically occur within a few hours after consuming lactose. The severity of symptoms can vary among individuals, with some being more sensitive to lactose than others.
Lactose intolerance is different from a milk allergy, which is an immune system response to proteins found in milk rather than the lactose sugar. It is important to note that lactose intolerance is a common condition and is not life-threatening. Many people manage their symptoms by reducing or avoiding lactose-containing products or by taking lactase supplements before consuming such products.
Diagnosis of lactose intolerance is typically done through a combination of medical history, physical examination, and lactose intolerance tests. If someone suspects they have lactose intolerance, it is advisable to consult a healthcare professional for an accurate diagnosis and guidance on managing the condition.
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Cystic fibrosis is an inherited genetic disorder caused by two copies of a defective recessive gene that causes
A) senility at around age fifty and slow nervous system damage.
B) the buildup of fluid in the lungs, and complications from pneumonia.
C) a form of mental impairment, along with heart defects, and a webbed neck.
D) the inability of the blood to clot properly, resulting in organ damage and easy bruising.
if you found piophila casei and bone eating beetles on a body, what could you say about the time of death
The presence of Piophila casei and bone-eating beetles on a body could indicate a post-mortem interval of several days to weeks, as these are species associated with later stages of decomposition. By examining the specific insect species and their stages of development, forensic entomologists can more accurately estimate the time of death.
If one found Piophila casei (cheese skipper flies) and bone-eating beetles on a body, it could suggest a specific timeframe since the individual's time of death. Piophila casei is known to be involved in the latter stages of decomposition, and the presence of bone-eating beetles, which tends to indicate a period of weeks into the decomposition process, can help to narrow down the timeline even further. Forensic entomology is the field that studies how insects can help in determining the post-mortem interval (PMI), which is the time elapsed since a person has died.
Flies, such as those in the Calliphoridae family, are usually the first to arrive at a decomposing carcass and lay eggs, often within minutes or hours after death. Over time, these eggs hatch into larvae and grow at a steady pace, and the development stage of these larvae can provide a minimum PMI. Beetles, with their longer life cycles, can cross-validate this evidence and expand the time frame to span over several weeks of decomposition.
The ecological succession of insects on a carcass starts with initial colonizers like blow flies and progresses through a predictable sequence that includes various beetle families. Over time, the body will attract different insect species according to the stage of decomposition, which is known to forensic scientists as 'ecological succession'. By analyzing this succession and the specific stages of insect development, a more accurate estimation of the time of death can be achieved.
Which process of heat transfer makes milk boil?
Condensation
Convection
Evaporation
Radiation
Your teacher has asked you to complete labeling this plant cell. You know that plant cells have a nucleus. What two organelles should be labeled that WOULD NOT be found in an animal cell?
(30 Points for answering)
A) cytoplasm and cell wall
B) membrane and chloroplasts
C) cell wall and chloroplasts
D) cytoplasm and chloroplasts
Answer:
c
Explanation:
watch my show
Compare and contrast cell communication by nerve signal and communication across plasmodesmata.
PLEASE HELP!!!!! 30 points
Explain why volcanic soil (andisol) is fertile.
Volcanic soil is fertile because it contains high amounts of minerals and nutrients. It is fertile because it is fresh and new.
Volcanic soil is fertile because it contains high amounts of minerals and nutrients. It is fertile because it is fresh and new.
What is volcanic soil?When volcanoes are active, soil that has formed there frequently has unique chemical characteristics. Due to the presence of volcanic ash, they frequently contain high levels of nutrients and have good water retention.
Depending on the type of volcano from which they are derived, these soils are known as andisols and are frequently quite young and acidic. If there isn't another eruption, volcanic soils near the equator can weather quite well and lose part of their nutrients. These substances can have extremely dark hues.
Volcanic eruptions are frequently dramatic occurrences that draw attention, occasionally on a worldwide scale. We are frequently drawn to volcanic landscapes out of curiosity and wonder to witness the amazing power of nature firsthand.
Therefore, Volcanic soil is fertile because it contains high amounts of minerals and nutrients. It is fertile because it is fresh and new.
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how can you use food labels and DRIs to make sure you get enough iron
Use food labels to check the percent daily values (% DV) for iron and choose foods that are high in iron or iron-fortified. The DRIs provide age- and gender-specific recommendations for daily iron intake. Consuming vitamin C with iron-rich foods increases absorption.
Explanation:The student has asked how to use food labels and Dietary Reference Intakes (DRIs) to ensure adequate iron intake. Boys and girls aged 9 to 13 require 9 mg of iron daily, girls 14-18 require 15 mg, boys 14-18 require 11 mg, and pregnant women need 27 mg. Food labels and the percent daily values (% DV) help identify the amount of iron in foods. Iron-fortified foods like breakfast cereals contain added iron, often as 'reduced iron' or fine metallic iron powder, which is converted to Fe²+ in the body. Consuming vitamin C alongside iron-rich foods enhances iron absorption. It's important to note that while some protein sources are high in iron, they can also be high in fat.
Choose all the answers that apply.
Sound _____.
travels in longitudinal waves
can travel through a vacuum
travels most slowly through a gas
speeds up when temperature is increased
is caused by vibration
Answer: your answers are A,D,And E
Explanation:
Which of the following statements is true?
The human eye can perceive a wide range of electromagnetic radiation wavelengths.
In bright light, the iris of an eye will dilate the pupil.
Light is created by vibrations in electric and magnetic fields.
All of the above.
Answer:
C
Explanation:
The answer is Light is created by vibrations in electric and magnetic fields. I chose this & got correct on test
how do energy conversions make a car go down the street
mitosis is an important process for a multicellular organisms-
A-metabolism
B-defense
C-growth
D-adaptation
Fill in the blank help please
Which of these is [not] a property of a mineral
Magnetism
Color
Reflection
Cleavage
I put 99 points on this and don't disappoint meor
your ☺️to my
15 points. Which of the following best summarizes the process of fertilization of a gymnosperm?
A) Male and female gametes are produced in a single cone, with pollen on the outside and the egg within the ovule beneath the scales. Pollen travels to the ovule, meets the egg, and fertilization can take place.
B) Cones are released from the tree and carried by wind to a moist environment where sperm can easily travel to the egg, and fertilization can take place.
C) Pollen travels from a male cone, the pollen becomes enclosed in the ovule that contains the egg within the female cone, the scale encloses the entire structure, and fertilization takes place.
D) Scales from male cones are carried to female cones, pollen is transferred to the female egg within the ovule, and fertilization takes place.
The correct answer is C).
In this process, pollen tube delivers pollen from the male cone to the female gametophyte, where fertilization occurs, leading to the formation of a zygote and eventually an embryo enclosed in a seed coat.
What’s is the best description of osmosis?
What are the main structures of reproduction in angiosperms ?
Which of the following describes a role that ribosomes assume in the production of proteins?
A)
Transports nutrients from inside the cell to the cell membrane to be used in making proteins.
B)
Produces energy for the cell to use during protein synthesis.
C)
Translates mRNA into a specific amino acid chain.
D)
Rids the cell of leftover amino acids once the proteins have been synthesized.
Answer:
C)
Translates mRNA into a specific amino acid chain.
Explanation:
Which best shows a harmful effect of a mutation?
Answer:
The correct answer will be option in which mutation is observed in the legs of the frog.
Explanation:
The mutation is a change which takes place in the sequence of DNA. When it takes place in the segment of DNA which can code the trait, it is expressed in the trait.
These mutation can prove beneficial to the organisms but can also become lethal to the organisms like the one with a mutation in legs of the frog as the legs of the frog helps provide the ability to move as well to swim in the water. if the legs will show a trait of mutation, the frog will not be able to swim and move properly.
Thus, option in which mutation is observed in the legs of the frog is the correct answer.
which best describes what a refrigeration system would do
A refrigerator works by absorbing heat from its interior and expelling it outside, using a coolant that vaporizes to capture heat and then is compressed to release it. This process requires work, electrical energy, and follows the conservation of energy principle, where the coefficient of performance measures efficiency.
Explanation:A refrigeration system, such as that found in a household refrigerator or freezer, conducts heat transfer by absorbing heat from within its insulated compartment (in this context, referred to as the cold reservoir) and expelling it to the surrounding environment (the hot reservoir). The system operates by using a coolant, which has a boiling point lower than the freezing point of water. This coolant captures heat from the refrigerator's interior during the evaporation process causing it to vaporize. Afterward, it is compressed—which requires work (W)—and transferred through the condenser, where it releases the absorbed heat to the outside air.
The conservation of energy principle is respected throughout this process, as the work done on the coolant (which we observe as electricity usage on our bill) facilitates the transfer of thermal energy against the natural direction of flow (from colder to warmer). The efficiency or coefficient of performance (COP or KR) of a refrigerator evaluates the ratio of the heat removed from the inside to the work input required to accomplish this task.
Overall, for the duration in which the refrigerator door remains closed, the refrigeration system continuously cycles the coolant to maintain a stable low temperature, thus keeping the food within preserved. The transfer and transformation of energy in this form are an intentional exception to the rule of spontaneous heat flow from hotter to cooler areas, being facilitated by external work input.
if a sample of dna contains 36% thymine, how much guanine would you find?
Evaluate and discuss the importance of maintaining biodiversity for future medical needs
lactase is an enzyme found in the digestive tract that digests lactose a common carbohydate found in milk.Would the genes for lactase be turned on or off after eating cheese and why?
what is the length of 63 perimeter width 1