What must scientists assume when using scientific laws to make
predictions?
Answers
Scientists must assume that scientific laws are accurate, applicable, and based on reliable data for making predictions.
When using scientific laws to make predictions, scientists must assume certain foundational principles. Firstly, they assume that the scientific laws are accurate representations of natural phenomena and that they apply universally under the given conditions. Scientists also assume that the conditions and variables influencing the system remain constant, allowing for reliable predictions. Furthermore, they assume that the laws are based on sufficient and representative data, and that there are no unaccounted factors or biases that could significantly affect the predictions. Scientists also assume that the laws will continue to hold true in the future, allowing for the extrapolation of predictions beyond observed data. However, it is important for scientists to continuously evaluate and refine their assumptions as new evidence and knowledge emerge, promoting the progress and refinement of scientific understanding.For more such questions on Scientific laws:
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Related Questions
The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?
Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.
Answers
Answer:
The correct answer is A and C.
Explanation:
7. To what Super group does the ameba belong? Mark as brainliest first to get correct.
Answers
Answer:
Answer: Rhizaria Supergroup
What is the difference between an explanation and an observation? Provide an example of each.
Answers
Answer:
Explanation is a statement or account that makes something clear while a observation is the action or process of observing something or someone carefully or in order to gain information.
Hope it helps and good luck!
For the below image label the 13.polar area and 14. Non polar area on the diagram
Answers
Answer:
http://images.pcmac.org/SiSFiles/Schools/AL/MobileCounty/CauseyMiddle/Uploads/DocumentsCategories/Documents/NBp10_Cell_Transport_-_Amoeba_Sisters_%7BSIS5384FB64E650%7D.pdf
use this link, you will find the answer
Explanation:
Why is the Cell Membrane most important?
Answers
can someone help me pls
Answers
Answer:
D. rough endoplasmic reticulum
Explanation:
hope this helps!
mark me brainiest
pls and ty!!
what are the anatomical and phyisological relationships beteween the immune system and other body systems?
Answers
The immune system is closely related to several other systems in the body, both anatomically and physiologically. The immune system is a complex network of cells, tissues, and organs that work together to defend the body against harmful invaders such as bacteria, viruses, and cancer cells.
The immune system is closely related to the circulatory system, as many immune cells are carried throughout the body in the bloodstream. The lymphatic system is also closely related to the immune system, as it is responsible for the production and transport of lymphocytes, which are specialized white blood cells that help to fight infection and disease. Additionally, the digestive system plays a role in the immune system, as it is responsible for the production and secretion of antibodies and other immune factors in response to pathogens that enter the body through the gastrointestinal tract. Furthermore, the endocrine system and the immune system are interlinked in a variety of ways, with hormones like cortisol and epinephrine being key mediators in the immune response. The nervous system also interacts with the immune system, with nerve cells releasing signaling molecules that can influence the activity of immune cells. Finally, the integumentary system, which includes the skin, hair, and nails, serves as a physical barrier that helps to prevent pathogens from entering the body. In summary, the immune system is intricately linked to many other systems in the body, working together to maintain the health and well-being of the organism.
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Transcribe the following DNA strand into mRNA and translate that strand into a polypeptide
chain, identifying the codons, anticodons, and amino acid sequence.
DNA: CGATACAATGGACCCGGTATGCGATATCC
Answers
C=G G=C T=A A=U
How is the atomic mass found?
Answers
Answer:
The average atomic mass for an element is calculated by summing the masses of the element's isotopes, each multiplied by its natural abundance on Earth. When doing any mass calculations involving elements or compounds, always use average atomic mass, which can be found on the periodic table.t/f: a mutation that changes the nucleotide at position 23 from c to g is a nonsense mutation.
Answers
False. A mutation that changes the nucleotide at position 23 from C to G is not a nonsense mutation.
A nonsense mutation is a type of genetic mutation that leads to the formation of a premature stop codon in the coding sequence of a gene. This premature stop codon results in the synthesis of a truncated, non-functional protein.
In the given scenario, a mutation that changes the nucleotide at position 23 from C to G is not a nonsense mutation. Nonsense mutations typically involve changes in the DNA sequence that result in the substitution of an amino acid codon with a stop codon, leading to premature termination of protein synthesis.
However, in this case, the change from C to G at position 23 does not necessarily result in the formation of a premature stop codon. It is a point mutation that leads to a substitution of one nucleotide for another, which may or may not affect the amino acid encoded by that specific codon. The impact of this mutation on the resulting protein would depend on the specific codon and the corresponding amino acid it encodes.
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what is the symbiotic relationship between HERMIT CRAB AND SNAIL ?
Answers
Answer:
the hermit crab has a commensalism symbiotic relationship with sea snails – the hermit crabs uses discarded sea shells to live in, and this relationship does not affect the other organism (the snail).
Explanation:
In some plants such as mosses and ferns, there is a multicellular stage in the life cycle that is haploid and a different stage that is diploid. What can you conclude from this?.
Answers
By the given statement , we can conclude that in some plants such as mosses and ferns have Haplo-diplontic life cycle.
Both mosses and ferns have generations of free-living gametophytes. This indicates that these haploid life stages engage in photosynthesis and are independent of the parental sporophyte generation in terms of nutrition. The moss is the sporophyte generation's gametophyte, and it will be reliant on it for nourishment.
The fern goes through two distinct phases in its life cycle: the sporophyte, which releases spores, and the gametophyte, which releases gametes. Sporophyte plants are diploid, whereas gametophyte plants are haploid. Alternation of generations is the name given to this sort of life cycle.
A haploid gametophyte and a diploid sporophyte alternate in generation throughout a haploid-diplontic life cycle. This life cycle is displayed by pteridophytes and bryophytes. The haplo-diplontic life cycle has the following characteristics: It has two stages, the first of which is haploid gametophyte and the second of which is diploid sporophyte.
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PLEASE HELP Calculate the volume of the block using the formula
Answers
Answer:
21.553125
Explanation:
You can round to whatever you feel, but this is the answer when you multiply 2.75 x 2.75 x 2.85
:D
Directions
Somebody Wanted But So Then (Summarizing Strategy) - Mr. Cook's Corner
Use bullet points to fill in each section of the chart for the short story The Man to
Send Rain Clouds.
Read: "The Man to Send Rain Clouds" 5,6 minimum sentences
Somebody:
Wanted:
But:
So:
Then:
The reading: page 2,3 are the picture 1,4,5 are in the comments
Answers
Here is a summary of the short story "The Man to Send Rain Clouds" using the Somebody Wanted But So Then strategy:
How to explain the summarySomebody: Teofilo, a respected elder in the Laguna Pueblo tribe, has died.
Wanted: His family and community want to honor him with a traditional funeral ceremony.
But: The priest, who is also a member of the community, refuses to participate in the ceremony because he believes it is pagan.
So: The family is forced to hold the funeral without the priest's blessing. They paint Teofilo's face with traditional symbols, offer him cornmeal and pollen, and pray for rain.
Then: The next day, it rains. The community is grateful to Teofilo for sending the rain, and they realize that they can still honor him even without the priest's blessing.
This story explores the conflict between traditional Pueblo beliefs and Christianity. It also shows how a community can come together to support each other during a time of loss.
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A student reads about a sexually reproducing population that has high genetic variability. Which statement best explains how this characteristic affects
survival of the population if it is exposed to a new disease?
Answers
High genetic variability increases the chances that some members of the population will possess genetic traits that make them more resistant to the new disease.
What is genetic variability?Genetic variability is the amount of diversity found within a species or population due to genetic differences. It is caused by changes in the genetic code, or DNA, that can occur through mutation, recombination, or other genetic processes. This variability can result in different physical characteristics, behaviors, and susceptibilities to disease. Genetic variability is important for maintaining the health and survival of a species or population, as it increases the chances of adaptation to changing environmental conditions. It also provides the opportunity for the population to evolve to become more optimized for its habitat and maximize its fitness.
This gives the population a better chance of surviving the disease, as some individuals will survive and pass on their more resistant traits to the next generation.
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Hormone released by the duodenum in response to acids and lipids in the duodenum.
Answers
Secretin is a 27 amino acid polypeptide hormone produced by S cells of the duodenum in response to a pH between 2 and 4.5 (very acidic).
What is Secretin?Secretin is a 27 amino acid polypeptide hormone produced by S cells of the duodenum in response to a pH between 2 and 4.5. Upon reaching the duodenum, the chyme will be covered with pancreatic juice from the pancreas and with a pH close to 9 thanks to the presence of sodium bicarbonate.
What are the effects of secretin hormones?inhibiting gastric activity and activating the secretion of enzymes and bicarbonate by the pancreas, and of bicarbonate and bile salts by the liver.
With this information, we can conclude that Secretin is a hormone that regulates water homeostasis throughout the body and influences the environment of the duodenum by regulating secretions
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Help me please first one who answer it i will give the brainliest
Answers
Answer:
1. About 40 degrees
2. 60 degrees
3. Enzyme A
Explanation:
Hope this helps you
Answer:
Imagine a science fiction movie in which a scientist creates a new species of organism. The scientist generates a whole population of the organism entirely through cloning of the males and females and then leaves them on an island. Explain why the population of clones would struggle to evolve if there was a major environmental change on the island?
Explanation:
En el hombre el color negro de los ojos “A” domina sobre el color azul “a” Una pareja en la que el hombre tiene los ojos negros y la mujer ojos azules tienen dos hijos, uno de ellos de ojos negros y el otro de ojos azules. Averiguar:
a) El genotipo del padre.
b) Realizar el cruzamiento.
c) Porcentaje genotípico de los hijos.
Answers
El enunciado hace referencia a un caso de herencia monogénica y dominancia completa para el rasgo 'color de ojos', donde el padre es heterocigota y la madre es homo-cigota recesivo.
Las respuestas a estas preguntas son:
a) Genotipo del padre: Aa (ojos negros)
b) Cruzamiento: Aa (padre) x aa (madre)
c) Frecuencias genotípicas esperadas: 1/2 Aa; 1/2 aa
En genética, dominancia completa se refiere al proceso de herencia en la cual un individuo heterocigota, es decir, el individuo que presenta dos alelos diferentes para el mismo gen, presenta el mismo fenotipo que un individuo homo-cigota para el alelo dominante (el alelo dominante es aquel que enmascara la expresión del alelo recesivo en individuos heterocigotas).
En este caso, el carácter 'color de ojos' presenta un patrón de herencia monogénica, donde el alelo 'A' dominante codifica para el rasgo fenotípico ojos negros, mientras que el alelo 'a' recesivo codifica para el rasgo fenotípico ojos azules.
En el ejemplo, la pareja tuvo progenie en la cual uno de los hijos presenta el rasgo recesivo ojos claros, y por lo tanto el padre debe ser heterocigota y poseer un alelo recesivo 'a'; mientras que la madre expresa el fenotipo recesivo y por lo tanto su genotipo es 'aa'. En consecuencia, el cruzamiento de un padre heterozigota 'Aa' con una madre homo-cigota recesivo 'aa' producirá una descendencia con una frecuencia genotípica esperada de 1/2 (50%) de hijos con ojos 'color negro' de genotipo Aa y 1/2 (50%) de hijos con ojos 'color celelste' de genotipo aa >>
Cruzamiento: Aa (padre) x aa (madre)
Gametos padre: 1/2 A; 1/2 a
Gametos madre: 100% a
Cuadro de Punett (combinaciones gaméticas):
A a
a Aa aa
a Aa aa
En consecuencia, este cruzamiento producirá 50% individuos ojos color negro (genotipo Aa) y 50% individuos con ojos color celelste (genotipo aa)
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pls help me with this
Answers
Answer:
5A - This person has 22 chromosomes.
5B - No, A human normally have 46 chromosomes (23 in a pair)
5C - Male
5D - Because he has X and Y chromosomes
any help would be very much appreciated!
Answers
The pictures are shown for pathogens which are harmful to human body and 1st is virus 2nd is fungus 3rd is protozoa and 4th is bacteria.
Explanation: There are many pathogens that are harmful to people and they are harmful because they use the host machinery to replicate themselves and grow and also damages the host machinery and lyse the cell which in turn reduces the immunity of the host body and also make the host body prone to diseases leading to the early death of host or miserable life.
These pathogens are bacteria, protozoa, fungi, and viruses.
Virus - The viruses are considered as non-living or living depending upon whether they are outside the host cell or inside it as it they are outside they are nonliving and if inside they are living and have genetic material RNA or DNA and a protein coat called capsid.
Bacteria - The bacteria are also unicellular organisms which are prokaryotes and have a cell wall made up of peptidoglycan and can be divided in gram negative and gram-positive bacteria for example Xanthomonas.
Fungi - The fungi are multicellular organisms and have mycelia which is a thread-like structure in the form of a network called hyphae and they produce a different types of spores for their development.
Protozoa - They are microscopic and unicellular organisms and are eukaryotic in nature having complex structure and have complex metabolism and also have cilia for their movements.
So according to this 1st is virus 2nd is fungus 3rd is protozoa and 4th is bacteria.
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Tonicity scenario biology
Answers
In the given scenario, the solution's Tonicity scenarios (6,9,13,14) are Hypertonic, (7,15) are Isotonic, and (8,10,11,12) are Hypotonic.
What are Hypertonic, Hypotonic, and Isotonic solutions?The concentration of a solution in relation to another solution is referred to as tonicity. The quantity of solutes dissolved in a solution is referred to as concentration.If the solute concentration is lower than that of another solution the solution is Hypotonic. Water molecules leave the cell from the outside in this solution.If the solute concentration is higher than that of another solution then the solution is Hypertonic. So, water molecules enter the cell from the outside in this solution.Isotonic solution is the one that has the same solute concentration as another solution.In a hypotonic solution, cells will expand, whereas, in a hypertonic one, they will shrink.6. Hypertonic
7. Isotonic
8. Hypotonic
9. Hypertonic
10. Hypotonic
11. Hypotonic
12. Hypotonic
13. Hypertonic
14. Hypertonic
15. Isotonic
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How many mrna be modified before it leaves the nucleus.
Answers
Squidward ate five hamburgers
What is the function of radicle?
Answers
Answer:
The functions of radicle are
a. it emerge from a seed through the micropyle.
b. it allows to suck water and send to the leaves to start photosynthesis.
c. it helps the seed to grow.e.t.c.
need help............................
Answers
Answer:
D. X is eukaryotic and Y is prokaryotic
what is the correct order of this
Answers
Answer:
I believe 43215
Explanation:
Mosasaurs were large marine reptiles that resembled a cross between a crocodile and a giant iguana. the mosasaurs are believed to have completely died out after a huge asteroid impact caused earth to drastically change. which effect of an environmental change does this best illustrate? migration loss of habitat adaptation extinction
Answers
Mosasaurs were large marine reptiles that resembled a cross between a crocodile and a giant iguana. Completely dying out of these can be the illustration of extinction.
What is extinction?Extinction is the dying out of a particular species. Extinction has an important role in evolution as it opens opportunities for emerging of new species.
The mosasaurs have completely died out after a big asteroid impact caused Earth to drastically change. This can illustrate extinction.
Thus, the correct answer is extinction.
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Answer:
d
Explanation:
True or False: All muscle cells only have one nucleus.
Answers
Answer:
True
Explanation:
Smooth muscle cells are spindle-shaped, have a single nucleus located centrally, and striations are absent. They are called muscles that are involuntary. There are branching fibers, one nucleus per cell, striae, and intercalated disks in the cardiac muscle. Its contraction is not regulated willingly,
(Not 100% sure.)
if the effective rate of reproduction of an asexual lineage is 12 per year, what would be the effective rate of reproduction of a lineage that was identical to the asexual lineage in every way except that it was sexual? 24 3 0 6 12
Answers
If the effective rate of reproduction of an asexual lineage is 12 per year, then the effective rate of reproduction of the sexual lineage would be 6 per year.
Sexual reproduction requires the production of both male and female gametes, and the fusion of these gametes to form a zygote. This process can be time-consuming and energetically costly, which means that sexual reproduction generally has a lower rate of reproduction than asexual reproduction. Therefore, the effective rate of reproduction of the sexual lineage would be lower than that of the asexual lineage.
In this case, the rate of reproduction of the asexual lineage is 12 per year, so the rate of reproduction of the sexual lineage would be expected to be lower. Specifically, it would be expected to be half the rate of the asexual lineage, or 6 per year. This is because each individual in the sexual lineage produces only half as many offspring as an individual in the asexual lineage, due to the need for two parents to produce each offspring.
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QUANTITATIVE Assuming that each replication fork moves at a rate of 500 base pairs per second, how long would it take to replicate the E. coli chromosome (with 4.6 million base pairs) from a single origin of replication
Answers
The E. coli chromosome is a circular DNA molecule that contains approximately 4.6 million base pairs.
Replication of this chromosome starts at a single origin of replication and proceeds bidirectionally, Resulting in two replication forks moving in opposite directions.
Assuming that each replication fork moves at a rate of 500 base pairs per second, the total time required to replicate the entire E. coli chromosome from a single origin of replication can be calculated as follows:
First, we need to determine the total number of base pairs that need to be replicated. Since the E. coli chromosome is circular, it has two replication forks moving in opposite directions, and
thus, the total number of base pairs that need to be replicated is equal to twice the size of the chromosome. Therefore, the total number of base pairs that need to be replicated is:
4.6 million base pairs x 2 = 9.2 million base pairs, Next, we can calculate the time required to replicate these 9.2 million base pairs at a rate of 500 base pairs per second: Time = Total number of base pairs / Rate of replication, Time = 9.2 million base pairs / 500 base pairs per second,
Time = 18,400 seconds or approximately 5 hours and 7 minutes, Therefore, it would take approximately 5 hours and 7 minutes to replicate the E.
coli chromosome from a single origin of replication, assuming that each replication fork moves at a rate of 500 base pairs per second.
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Evan's nightly chores include washing dishes. His mother cooks
everything she prepares a bit too long. Because of this, Evan spends a lot
of sweat, effort, and time washing dishes. He sees a commercial on
television that claims a new dishwashing detergent, called Brand X, cuts
through grease better than its competitor, called Brand Y. They back up
their claim with testimonials from people who say they've used this new
detergent.
Write an If...then...because hypothesis that Evan may use in this scenario.
Answers
Answer: If you use brand X detergent, then you will get better results than if you use brand Y because people who've used brand X detergent backed their claim with testimonials
Explanation: