Explain the difference between a theory, hypothesis, and
law.
Hypothesis
A hypothesis is an educated guess, based on observation. It's a prediction of cause and effect. Usually, a hypothesis can be supported or refuted through experimentation or more observation. A hypothesis can be disproven but not proven to be true.
Example: If you see no difference in the cleaning ability of various laundry detergents, you might hypothesize that cleaning effectiveness is not affected by which detergent you use. This hypothesis can be disproven if you observe a stain is removed by one detergent and not another. On the other hand, you cannot prove the hypothesis. Even if you never see a difference in the cleanliness of your clothes after trying 1,000 detergents, there might be one more you haven't tried that could be different.
Theory
A scientific theory summarizes a hypothesis or group of hypotheses that have been supported with repeated testing. A theory is valid as long as there is no evidence to dispute it. Therefore, theories can be disproven. Basically, if evidence accumulates to support a hypothesis, then the hypothesis can become accepted as a good explanation of a phenomenon. One definition of a theory is to say that it's an accepted hypothesis.
Example: It is known that on June 30, 1908, in Tunguska, Siberia, there was an explosion equivalent to the detonation of about 15 million tons of TNT. Many hypotheses have been proposed for what caused the explosion. It was theorized that the explosion was caused by a natural extraterrestrial phenomenon, and was not caused by man. Is this theory a fact? No. The event is a recorded fact. Is this theory, generally accepted to be true, based on evidence to-date? Yes. Can this theory be shown to be false and be discarded? Yes.
Law
A scientific law generalizes a body of observations. At the time it's made, no exceptions have been found to a law. Scientific laws explain things but they do not describe them. One way to tell a law and a theory apart is to ask if the description gives you the means to explain "why." The word "law" is used less and less in science, as many laws are only true under limited circumstances.
Example: Consider Newton's Law of Gravity. Newton could use this law to predict the behavior of a dropped object but he couldn't explain why it happened.
As you can see, there is no "proof" or absolute "truth" in science. The closest we get are facts, which are indisputable observations. Note, however, if you define proof as arriving at a logical conclusion, based on the evidence, then there is "proof" in science. Some work under the definition that to prove something implies it can never be wrong, which is different. If you're asked to define the terms hypothesis, theory, and law, keep in mind the definitions of proof and of these words can vary slightly depending on the scientific discipline. What's important is to realize they don't all mean the same thing and cannot be used interchangeably.
eh- hope you understand now..
Answer:
A theory is a group of related hypotheses that can be accepted as true based on repeated investigations with similar results. A law is a scientific concept that explains what patterns of behavior will be seen through repeated investigations.
In what ways are flatworms, roundworms, and segmented worms alike?
Answer: They all have long, narrow bodies without legs. All worms have tissue, organs, adn organ systems. They also share bilateral symmetry.
Explanation:
Question
Warm-Up
Type your response in the box.
What changes occur to your breathing and heart rate during exercise? Why do you think these changes occur?
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Answer:
When you exercise, no matter how intense, your heart rate goes up, and because of this, you breathe more. The body needs oxygen so you breathe more as the heart pumps the oxygen carrying cells throughout your body.
Answer:
The heart beats faster and breathing gets heavier during exercise. These changes occur because the body needs more oxygen to exercise, and the heart needs to pump this oxygen to the body parts that need it.
Explanation:
How is the gray whale different from other species?
Answer: Gray whales have no dorsal (back) fins. Instead, they have a low hump and a series of six to twelve knuckles or bumps. Gray whales are baleen whales, and each has approximately 300 plates of cream-colored baleen hanging from its upper jaw. Two to five throat creases allow their throats to expand during feeding.
Explanation:
What’s the answer to this earth science question?
Note that the evidence shown on the map that indicates point B is most likely experiencing precipitation is the front represented by the line with bumps moving from low to high pressure.
On the map, the indication that point B is likely experiencing precipitation is the presence of a front represented by a line with bumps moving from low to high pressure.
This front typically denotes a transition zone where warm and cold air masses meet, leading to atmospheric instability and potential precipitation. As the front advances, it often brings changes in weather conditions, including cloud formation, rainfall, or other forms of precipitation, affecting areas along its path such as point B.
Which of the following are social implications of an environmental policy? Check all that apply.
A•loss of jobs
B•poorer air quality
C•less erosion
D•cleaner water waste
E•higher taxes
F•elimination of tourist activities
Answer: A, E, F
Explanation: I just did the problem and I got them correct
Answer:
A,E,F,
Explanation:
just took it on edge
Through the process of photosynthesis, light energy from the Sun was transformed into chemical energy in the form of sugar within a strawberry plant. The strawberries were then eaten by a bird, and the sugars were converted into other essential molecules, such as proteins or fats. When the bird produced waste, bacteria in the soil decomposed the waste into elements, such as carbon and nitrogen, which were recycled back into the ecosystem.
In this example, matter and energy changed forms and locations as they flowed through the ecosystem. What else is true?
A.Matter and energy were lost each time they changed forms.
B.The total amount of matter and energy increased.
C. Matter and energy were lost each time they changed locations.
D. The total amount of matter and energy remained the same.
Answer:
D.
Explanation:
In the given example the matter and the energy both changed the forms and locations but the amount of matter and energy remained the same. Therefore, option d is correct.
How does the energy flow through an ecosystem?The energy flows through the ecosystem from one trophic level to another. It is transferred between organisms in a systematic manner from producers to primary consumers, from primary consumers to secondary consumers, from secondary to tertiary consumers, and finally to decomposers.
In this way, the energy and the matter are circulated and released back into the environment so that they can be reused over and over again. There is a unidirectional energy flow in an ecosystem. The energy moves through the ecosystem and changes form but no new energy is created.
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please help me as soon as possible
Why does a population that experiences exponential growth have a high chance of having a population crash?
Which process and product are represented in Diagram 2?
A. Process: replication
Products: tRNA
B. Process: recombination
Product: polymerase
C. Process: translation
Product: protein
D. Process: transcription
Product: mRNA
Answer:
D
Explanation:
Making a copy of the DNA sequence of a gene in RNA is the aim of transcription. Thus, option D is correct.
What importance of transcription process in gene regulation?A crucial biological mechanism known as transcriptional regulation enables a cell or an organism to respond to a variety of intra- and extracellular inputs.
To determine a cell's identity throughout development, to maintain it over the course of its existence, and to coordinate cellular activity.
RNA polymerase connects to a promoter sequence close to the start of a gene to start transcription (directly or through helper proteins).
A new, complementary RNA molecule is created by RNA polymerase using a template from one of the DNA strands (the template strand).
Therefore, Process: transcription Product: mRNA
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Describe how the African Rift Valley formed. Make sure to include the type of plate boundary and the type of crust that is interacting
Answer:
Geologists know that the Rift Valley was formed by violent subterranean forces that tore apart the earth's crust. These forces caused huge chunks of the crust to sink between parallel fault lines and force up molten rock in volcanic eruptions.
Explanation:
Great Rift Valley - COTFwww.cotf.edu › ete › modules › rift › rvwhatisriftvalley
Where are the chemicals secreted by the endocrine glands released into?
Answer:
directly in to the blood.
Explanation:
Answer:
they are directly released to the blood.
Explanation:
as endocrine secret hormones known as chemical messenger so they are directly mixed with blood .furthermore they also lack duct.
According To the fossil record which of these evolved after amphibians
light is reflected when it falls on a clean, smooth surface. the diagram shows the ray of light falling on a surface. Which diagram shows the reflected ray?
Answer:
it bounces
Explanation:
when reflected, the light buncesoff of the solid object. the diagram should look like a V
Answer:
B on edge 2021
Explanation:
What do scientists need to look before developing an argument?
resources, and research them on website
Earth’s energy is a description of how Earth uses the energy from the Sun as it flows in and out of the Earth system.
Answer:
budget
Explanation:
What best explains the graph shown below?
A. Temperature are dropping because greenhouse gasses are high and increasing
B. Temperatures are dropping because greenhouse gasses are high and constant
C. Temperatures are dropping because greenhouse gases are low and constant
D. Temperatures are dropping because greenhouse gasses are low and decreasing
Answer:
The answer is C
C. Temperatures are dropping because greenhouse gases are low and constant
Explanation:
I took the test and got it correct
C. Temperatures are dropping because greenhouse gases are low and constant.
Temperatures drops due to lowering constantly of greenhouse gases in the atmosphere. Greenhouse gases has the ability of trapping solar radiation after reflecting the earth surface. This trapping increases the temperature of the surrounding environment so if the temperature decreases it is due to lowering of greenhouse gases so we can conclude that temperatures are dropping due to lowering of greenhouse gases.
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5. Marina Silva says, “This is the first time it has happened thanks to the discourse
and activities of the federal government." Her tone can best be described as
O
A. awestruck
O
B. critical
O
C. egotistical
O
D. sentimental
Final answer:
Marina Silva's tone is best described as critical, emphasizing the significant role of the federal government's actions. The traditionalistic political culture refers to the maintenance of the existing social order, and the term sovereignty describes a state's recognition of another state's autonomous power. So the correct option is B.
Explanation:
Marina Silva's tone in the statement, “This is the first time it has happened thanks to the discourse and activities of the federal government,” can most appropriately be described as critical. The context of this statement is not provided in the question, but typically, if someone points out an occurrence for the first time due to government activities, there's an implication that they are spotlighting the role of the government as pivotal and noteworthy, often in a critical or evaluative way. Thus, this likely implies a recognition with potentially a hint of criticism of the government's action or inaction in a given context.
Regarding the question concerning the political culture where the government maintains the existing social order, the correct term would be traditionalistic. In a traditionalistic political culture, there is a maintenance of the status quo, and social and political relationships are characterized by a continuation of what has been historically established.
Regarding social media's impact on governance, the role of social media in organizing events and shaping public opinion has been significant. It has the power to influence politics by allowing information dissemination and organizing at unprecedented speeds, which can contribute to government misjudgment or swift social changes, often catching governments off guard.
In international relations, when a state recognizes another state's sovereignty, it is both exercising and bestowing power. Sovereignty acknowledgment implies respecting the autonomy and self-government of the other state, thereby highlighting a recognition of equal status in the international system.
Which of earths layers is shown by the letter Z in the image above?u
Answer:
Crust
Explanation:
Answer: A. Crust
Explanation:
Jana made a table to help her review the types of mutations for an exam. She started with the sequence THE MAN SAT TALL. Which statement best describes Jana’s error in the table? The insertion sequence should be the deletion sequence. The substitution sequence should be the insertion sequence. The insertion and deletion sequences should be switched. The substitution and deletion sequences should be switched.
Answer:
D
Explanation:
Just answered the question
This question is incomplete as the sentences depicting mutated sequences are not included. The complete part is:
1) The cat was red 2) The fat aca tsa t 3) SHE Has The DG
The answers are:
1. The cat was red - Substitution
2. The fat aca tsa t - Insertion
3. SHE Has The DG - deletion
What is mutation?A mutation, as stated in this question, is an alteration in the nucleotide sequence of a gene, which can alter the gene product. In this question, each sentence is made up of three‑letter words, representing mRNA codons. The sentences are:
THE FAT CAT SAT
THE CAR WAS RED
SHE HAS THE DOG
A substitution mutation is that mutation involving the replacement of a nucleotide by another in a sequence. In the sentence; THE CAR WAS RED, R letter was replaced by letter T, hence, the sequence/sentence changed to THE CAT WAS RED.
An insertion mutation involves the addition of a nucleotide into the original sequence. In the sentence/sequence; THE FAT CAT SAT, letter A was added in between "fat" and "cat" to change the sentence to THE FAT ACA TSA T.
Deletion mutation involves the removal of a nucleotide from an original sequence. In the sentence/sequence; SHE HAS THE DOG, letter O was removed from the sentence to change it to SHE HAS THE DG.
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As a result of mitosis, in a human body cell, the nucleus of each daughter cell contains _________ chromosomes.
Answer: 46 chromosomes
Explanation: Each human body cell has 46 chromosomes (2 sets of 23). Mitosis duplicates the chromosomes and distributes them to the daughter cells, leaving 2 daughter cells with 46 chromosomes each.
Which phrase accurately describes a species?
1. the largest and most general level of biological classification
2. a group of organisms that can produce offspring that can also mate and produce offspring
3. a group of organisms that shares a few general characteristics
4. a group of organisms that share a habitat but do not mate with each other
Answer:The answer is 2 (b)- a group of organisms that can produce offspring that can also mate and produce offspring.
Explanation:
I just got the question lol
Hope it helped!
A collection of creatures that can breed with one another in nature and have healthy offspring is referred to as a biological species, hence option 2 is correct.
What is a species?Generating viable children is dependent on interbreeding. The offspring must be able to reproduce in order to be deemed "viable".
Humans have 99.9% of the same DNA as each other. Additionally, the 0.1% of human DNA that varies from person to person does not neatly fit the definition of the race since biology does not support the idea of race.
Because of this, we are too similar to one another to be classified as separate subspecies.
Therefore, the biological species concept, describes a species as members of populations that may interbreed with one another, hence option 2 is correct.
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What are three ways body systems work together to maintain homeostasis?
Answer:
Each organ system performs specific functions for the body, and each organ system is typically studied independently. However, the organ systems also work together to help the body maintain homeostasis.
For example, the cardiovascular, urinary, and lymphatic systems all help the body control water balance. The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure. If the water level gets too high, the urinary system produces more dilute urine (urine with a higher water content) to help eliminate the excess water. If the water level gets too low, more concentrated urine is produced so that water is conserved. The digestive system also plays a role with variable water absorption. Water can be lost through the integumentary and respiratory systems, but that loss is not directly involved in maintaining body fluids and is usually associated with other homeostatic mechanisms.
Similarly, the cardiovascular, integumentary, respiratory, and muscular systems work together to help the body maintain a stable internal temperature. If body temperature rises, blood vessels in the skin dilate, allowing more blood to flow near the skin’s surface. This allows heat to dissipate through the skin and into the surrounding air. The skin may also produce sweat if the body gets too hot; when the sweat evaporates, it helps to cool the body. Rapid breathing can also help the body eliminate excess heat. Together, these responses to increased body temperature explain why you sweat, pant, and become red in the face when you exercise hard. (Heavy breathing during exercise is also one way the body gets more oxygen to your muscles, and gets rid of the extra carbon dioxide produced by the muscles.)
Which picture represents a cast?
Answer:
its number 1
Explanation:
because the fly is stuck in amber
and the snail shell is in mold and is filled up
and number 2 is not cast
A child is born with a genetic disease caused by mutations found in mtDNA (mitochondrial DNA); How did the child inherit this disorder? A) The child received the mutation from his mother. B) The child received the mutation from the father. C) The child inherited a recessive allele from each parent. D) All mitochondrial diseases are caused by the inheritance of one dominant allele.
Answer:
d
Explanation:
its easy as pie.
Define disacharide and provide two examples
Answer:
A disacharide are sugars made out of two monosacharide some examples of this is Sucrose and Lactose
Explanation:
NA
What are three matrices in which organisms may become fossilized?
Answer:
Ice, Amber, and Tar
Explanation:
The three matrices in which organisms may become fossilized are sandstone
, shale and limestone matrix.
These matrices are factors which determine if organisms may become
fossilized. The sandstone matrix involves organisms being embedded in
sand grains which may later form fossils.
The limestone and shale matrix involves the organisms being embedded in
carbonate mud and presence of gas such as methane respectively.
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What is the correct amino acid sequence for the mRNA code AUGCCAGUAUG?
(a) Tyr-Gly-Arg-His
(b) Met-Pro-Ala-Val
(c) Tyr-Gly-His
(d) Met-Pro-Val
The sequence of amino acid for the given mRNA code is Methionine-Proline-Valine.
What is a codon?It is a trinucleotide sequence of RNA or DNA, which corresponds to a particular amino acid. The genetic code illustrates the association between the DNA base sequence within a gene and the corresponding sequence of protein, which it encodes.
The sequence of the gene is read based on the groups of three bases. In total there are 64 distinct codons, of which 61 codes for amino acids and the rest three are used as stop signals. On seeing the mRNA code AUGCCAGUAUG, it can be seen that,
AUG codes for methionineCCA codes for prolineGUA codes for valineUG is not a codonTherefore, the correct amino acid sequence will be Methionine-Proline-Valine.
Thus, the correct answer is option d.
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The transfer of pollen from the stamens to the pistil of a flower begins the process of which of the following?
A. Germination
B. Oxidation
C. Fertilization
D. Transpiration
Answer: Fertilization
Explanation:
Waste products are also removed by the skin.
True or false
(GET IT DONE QUICK OR ELS I WILL DELET U BRAINELYIEST TATER TOT)
l think it is false ☺️
Answer:
True
Explanation:
Yeah, the waste products like urea are also removed by the skin, using some glands such as the sweat glands. Therefore, the given statement is correct.