what is a hypothesis referred to as after being verified by a large number of independent experiments?
Answer:
Scientific Theory
Explanation:
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.
What is the acid produced by stomach?
Answer:
Hydrochloric acid
Explanation:
Answer:
I think its Hydrochloric Acid
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Splints or surgery are used to treat the broken bone in patient A. Insulin medicines are used to treat diabetic peripheral neuropathy in patient B. Painkillers are being used to treat the muscle sprain in patient C.
After a bike accident, Patient A had a direct injury to the bone.
Surgery or the use of splints to immobilize broken bones and speed recovery are the two main options for treating bone fractures.
Diabetic patient B came to the hospital complaining of tingling and numbness in his right foot. This is a nerve impairment or harm brought on by the underlying sickness.
Plan of treatment: This entails utilizing insulin to manage blood sugar levels and prescription drugs to treat nervous system problems.
Patient C reported tightness and soreness in the back of her leg after suffering a muscle sprain during a track event.
Painkillers, ice, or splinting should all be part of the treatment approach
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Does the difference in structure for arteries and veins make sense given then functions? Explain.
What is the best way to deal with biodiversity hotspots?
which of the ecosystems listed below has the greatest biomass? which of the ecosystems listed below has the greatest biomass? desert boreal forest evergreen forest tropical rainforest
The tropical rainforest has the greatest biomass among the listed ecosystems. It is characterized by high levels of biodiversity and abundant plant growth, resulting in a large accumulation of organic matter.
The tropical rainforest is known for its exceptional biomass due to its favorable climate conditions, including high temperature and precipitation levels. These conditions promote year-round growth and provide abundant sunlight for photosynthesis. The rainforest's dense vegetation consists of numerous tree species, vines, ferns, and epiphytes that thrive in the moist and nutrient-rich soil.
The high plant productivity in the tropical rainforest supports a diverse range of animal life. Insects, birds, mammals, reptiles, and amphibians thrive in this lush habitat, forming complex food webs. The abundance of plants and the variety of herbivores and omnivores contribute to the overall biomass in the ecosystem.
The dense vegetation and diverse wildlife of the tropical rainforest allow for a significant accumulation of biomass. Biomass refers to the total mass of living organisms within an ecosystem. It includes living organisms such as trees, plants, animals, fungi, and microorganisms. The high levels of primary productivity in the tropical rainforest translate into substantial biomass, making it the ecosystem with the greatest biomass among the options provided.
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Why might a group of mule deer move to another area if a larger herd of deer have come to the same habitat?
Commensalism
Mutualism
Competition
Predation
Answer:
Competition
Explanation:
Since its a same type of species, they would be going after the same food, therefore if more deer had migrated to their habitat, the mule deer will also migrate somewhere else to look for food. Reason for competition: food and habitat
hope this helps :D
On a blueprint a rectangular kitchen is 4.5 inches wide and 5.5 inches long. If the actual kitchen is 11.25 feet wide, how long is it?
Answer:
13.5
Explanation:
if you add 4.5 times 5.5 you get 24.75 then you subtract 11.25 and get ur answer.
which of the following components of receptor-mediated endocytosis of ldl is incorrectly matched with its function? choose one:
A clathrin: forms the coated vesicle B. LDL receptors: form bridges between the LDL particle and adaptin C. adaptin: binds to the specific receptors and recruits clathrin D. lysosome: releases LDL from the receptor
The incorrect match is D. lysosome: releases LDL from the receptor.
The function of lysosome in receptor-mediated endocytosis of LDL is to break down the LDL particle and release its contents, not to release the LDL from the receptor. The correct function of LDL receptors is to form bridges between the LDL particle and adaptin, while the function of adaptin is to bind to the specific receptors and recruit clathrin, which forms the coated vesicle that internalizes the LDL particle into the cell. Adaptin on the other hand, binds to the specific receptors and recruits clathrin, which in turn forms the coated vesicle that will then enclose the LDL particle. After the LDL particle is inside the coated vesicle, the lysosome will release the LDL from the receptor.
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n pea plants, tall plant height is dominant over short plant height. If there are 200 short plants in the F2 generation from a cross that followed Mendel’s methods, about how many plants will be tall in that generation?
200
300
600
1,000
Answer:
600
Explanation: there is always a 3:1 ratio when you have a dominant and recessive trait.
hope it helps!
Answer:
600
Explanation:
Edge 2021
A patient is given a β1 receptor agonist. what would you expect to find?
If a patient is given a β1 receptor agonist then it is expected to find increased heart rate and increased cardiac output.
What are the consequences in the body of β1 receptor agonists?The consequence in the body of β1 receptor agonists is to stimulate the activity of adenyl cyclase by opening calcium channels thereby leading to an increased heart rate and increased cardiac output.
Therefore, with this data, we can see that the consequences in the body of β1 receptor agonists include an increased pumping of blood by the heart.
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A scientist found a correlation between honeybees and a certain species of flowering plant. When the bee population increases, so does the flowering plant population. And when the flowering plant population decreases so does the bee population. To find out whether each change in population CAUSED the other population to change, what could the scientist do?
A. Investigate the populations of two other species of plants and insects to see if they have a similar correlation.
B. Investigate the populations of the honeybee and plant species in areas where the other species is not present.
C. Have several other scientists examine the data to see if they see the same correlation.
D. Repeat the observations to see if the new data show the same correlation.
To find out if the change in one population is due to the other population, the scientist can: B. investigate the populations of the honeybee and plant species in areas where the other species is not present.
By doing so, the scientist can see if similar relationships exist between other plant and insect species too. And if that is the case then prove his hypothesis null. If no such relationship is observed between bees and other flowering plant species or the same species of flowering plant and some other insect, then it might confirm his alternative hypothesis. Moreover, he can repeat the observations after doing this to see if the new data also reports the same findings and correlation.Hence, the correct answer is option B.
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A researcher is measuring Earth's atmospheric CO2 levels, gathering data on CO2 levels in northern and then southern hemispheres. What do you expect that she will find?
-Atmospheric CO2 measurements will be greater in the Northern Hemisphere.
-Atmospheric CO2 measurements will be greater in the Southern Hemisphere.
-Because atmospheric CO2 measurements represent global amounts, measurements in the Northern Hemisphere and Southern hemisphere will be approximately the same.
From measurements of CO₂ in the Earth's atmosphere, in the northern hemisphere and then in the south a measurement of atmospheric CO₂ will be greater in the northern hemisphere.
The northern hemisphere contains more land than the southern hemisphere which is mostly covered by the ocean the amount of carbon produced in the atmosphere increases overall during northern winters. The northern hemisphere is also where most developed countries emitting carbon are located. Therefore, the Northern Hemisphere always has a higher concentration of CO₂ than the southern hemisphere of the planet.
The southern hemisphere consists of the continents of Antarctica, and Australia, parts of South America, parts of Africa and Asia, and four oceans namely the Atlantic Ocean, Indian Ocean, Pacific Ocean, and Southern Ocean.
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What distinct advantage do mosaic viruses have in their habitats?
Mosaic viruses, such as the Tobacco mosaic virus (TMV), exhibit distinct advantages in their habitats that contribute to their persistence and success as plant pathogens. These advantages include a flexible, rod-shaped structure, rapid replication, high mutation rates, and broad host range.
In summary, the distinct advantages of mosaic viruses in their habitats include their stable structure, rapid replication, high mutation rates, and broad host range.
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Validity of an experiment is based upon:
A. Using a control group.
B. Performing a fair test in which only the independent variable affects the dependent variable.
OC. Using multiple independent variables.
D. Performing a fair test, in which only the dependent variable affects the independent variable.
A
JUL
2
tv
Answer:
performing a fair test, in which only the dependent variable affects the independent variable
The scientist tests each sample three ties, explain why it is important to do this
A scientist conducts 3 ties for a sample in a particular experiment. Because an experiment starts with a set of observations which might change due to some factors. So in order to conclude a concrete hypothesis it is a important process.
What is an experiment?An experiment is a scientific process to discover something , test a hypothesis on it and make some observations on that subject. A scientific study can only be possible by performing different kinds of experiments. Scientists can perform and verify the experiment in numerous ways. There are different studies of science which give exposure to numerous scientific fields. The different parts of science are chemistry , biology , physics and many more. Different observations are made on an experiment. You can always explore something new in this field. Scientist propose hypothesis for a phenomenon. There are 3 different types of hypothesis are : simple, complex and directional hypothesis.
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Which of the following shows natural selection?Select one:a.A horse's parents were racers. The fastest horses are bred to produce the fastest offspring.b.Some tuna live in the Pacific Ocean. They are fast swimmers so they are likely to survive and pass on their genes.c.Some trees produce apples for baking. Seeds from the largest apples are kept to produce the next generation of trees.d.Certain rabbits are raised for fur. Rabbits with soft fur are bred with other rabbits with soft fur. They eat grain and vegetables.
Natural selection is the process in which some organisms that show better adaptation to the environment are more likely to produce an offspring. In the case of the exercise, the answer is:
b. Some tuna live in the Pacific Ocean. They are fast, so they are likely to survive and pass on their genes.
It means that as they are better adapted to that environment due to the fact they are fast swimmers, they are likely not only to survive, but to pass their genes and produce offsprings.
First, describe why an animal is considered a system. Then, explain why an animal is not considered a technological system. ▲
If the membrane potential of a neuron decreases, the membrane potential _____.
Answer: Less Negative/ More Positive
(Either will work)
Explanation:
If the membrane potential of a neuron decreases, the membrane potential less negative/more positive.
please please please please please help me
Answer:
i think it is the third option
Explanation:
hope this helped
(sorry if this is wrong.)
The total momentum of the system will remain the same. The momentum and energy is transferred from the first ball into the other one, but none is lost.
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An action potential involves Sodium moving ________ the cell and Potassium moving ________ the cell.
Answer:
An action potential involves Sodium moving inside the cell and Potassium moving outside the cell.
If a person has a dominant gene and a recessive gene for a certain trait, which will be expressed?
Answer:
The dominant gene.
Explanation:
Given the unit,identify the measurable property.
P= pressure exerted by the gas is atm, and V= total volume occupied by the gas is L.
What are measurable properties?Another characteristic of gas that can be measured is pressure. We are aware that the force a gas exerts on the container's walls per unit area in all directions is known as pressure. Additionally, any gas exerts pressure due to the kinetic energy of its molecules.
T= temperature of the gas is K
n= number of moles of the gas is mol
m³= The metric unit for measuring volume is the liter (L), and the cubic meter (m3)
pascal = newton per meter square.
Therefore, T stands for temperature, which is the unit used to express how hot something is. Degrees Fahrenheit (°F), degrees Celsius (°C), and Kelvin (K).
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80) Which of the four DNA bases contains the largest number of hydrogen bond acceptors when involved in a Watson-Crick base pair?ACGT
When included in a Watson-Crick base pair, adenine DNA nucleotides have the most hydrogen bond acceptors.
In how many hydrogen bonds does ATCG exist?A - T and G - C are two base pairs that are complimentary. For this reason, swap out A for T, G for C, and vice versa to discover the complementary strand. While there are two hydrogen bonds connecting Adenine and Thymine, there are three between Guanine and Cytosine.
How many molecules of cytosine are hydrogen bond acceptors?Correct! One of the four hydrogen bond acceptors for cytosine is that. Keep in mind that an electronegative atom with a nonbonding electron pair that can make a partial bond to a hydrogen atom is referred to as a hydrogen bond acceptor.
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Profile set #1
Ladder
Mother
Child
Alleged father #1
Profile set #2
Ladder
Mother
Child
Alleged father #2
Questions:
1. Can either man be excluded as the father? Explain.
2. Which man may be the father of the child? Explain.
3. Is this DNA profile sufficient to establish paternity? Why or why not?
In a DNA profile, bands should be compared to establish paternity. 1) Alleged father number 1 could be excluded. 2) Alleged father number two may be the father. 3) No, more markers and repetitions are needed.
What is a genetic profile?The genetic profile is the series of alleles characteristic of each individual concerning a series of DNA fragments. Once genetic profiles are obtained by using PCR/electrophoresis, they must be subjected to interpretation. The researcher must compare profiles to find concordance between individuals or the lack of it. How to improve the study?Using several markers in the study increases the matches chances. There must be a repetition of the study.In the exposed example, we have a profile of the mother, the child, and two potential fathers.
We need to find out which of the two men might be the father.
How to interprete the results from the pattern of bands?We need to compare the child's pattern of bands with the mother's ones and each of the potential fathers.We need to look for the child's lanes that match the most with each of the potential fathers' lanes and discard those that differ the most. These patterns that differ the most can be excluded. Individuals suspected to be related must be subducted to a repetition of the study. As the statement says, any band that does not matches the mother's side comes from the father's side. ComparisonMother-Child ⇒ In these profiles, the child only matches one band with the mother. You will find this match as a red circle in the image in the attached files. 1st profile ⇒ In this profile, the child does not match with any of the bands of the first alleged father. 2nd profile ⇒ In this profile, the child matches with only one of the bands of the second alleged father. You will find this match as a green circle in the image in attached files.1. Can either man be excluded as the father? Explain.
Yes. Concerning only the analyzed markers, we could say that alleged father number one can be excluded since there is no bands' matching. This man is the one that differs the most.
2. Which man may be the father of the child? Explain.
Since one of the bands match, the alleged father number two may be the child's father.
3. Is this DNA profile sufficient to establish paternity? Why or why not?
A deeper study should be done to establish paternity, which includes more markers and more repetitions. There should be more than only one matching band.
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Example of how muscle tissue could be used in post-mortem analysis
Answer:
Skeletal muscle decomposes more slowly than internal organs and nerve tissue after death, but still more quickly than cartilage and bone.
Together, these factors make muscle tissue a good candidate for postmortem change study and well-suited for standard forensic lab examination.
explain how different photosynthesis modes allow plants to adapt to particular environments
Farmer Brown tests the hypothesis that the more alfalfa sprouts cattle eat, the more milk they produce. He divides his pasture into four fields and puts twenty cattle in each field. Field 1 cows get no alfalfa sprouts, field 2 cows get ten pounds of sprouts per day, field 3 cows get twenty pounds of sprouts, and field 4 cows get thirty pounds. He feeds all groups fifty pounds of regular hay per day, uses the same breed of cattle, and gives them the same amount of water. He measures gallons of milk produced per cow every day.
Answer:
C
Explanation:
The amount of milk cow produces
Answer:
D
Explanation:
I took the test
Of the following layers of the heart wall, which consumes the most energy?
A. Epicardium
B. Myocardium
C. Endocardium
D. Visceral pericardium
The correct answer is B. Myocardium. The myocardium, which is the middle layer of the heart wall, is primarily composed of cardiac muscle tissue responsible for the contraction and pumping action of the heart.
Due to its contractile nature and continuous work, the myocardium requires a significant amount of energy to sustain its function.
The myocardium receives oxygen and nutrients through the coronary arteries to support its energy demands. The energy is required for the contraction of cardiac muscle cells and the maintenance of ion gradients across cell membranes.
The epicardium (A) is the outermost layer of the heart wall, consisting of connective tissue and a thin layer of epithelial cells. The endocardium (C) is the innermost layer of the heart wall, comprising endothelial tissue that lines the heart chambers and valves. The visceral pericardium (D), also known as the epicardium, is the thin membrane covering the outer surface of the heart. While these layers are essential for heart function, they do not consume as much energy as the myocardium.
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The key aspect of receptor-gating in the associative induction of hippocampal LTP is that Group of answer choices the NMDA receptor acts as a molecular coincidence detector. both the NMDA and AMPA channels must be open in order for the cell to depolarize. The NMDA receptor allows the flow of magnesium into the cell. all glutamate receptors open automatically whenever glutamate is in the synaptic cleft. the AMPA receptor allows calcium into the cell only after the NMDA receptor is activated.
Answer:
The correct answer is NMDA receptor acts as a molecular coincidence detector.
Explanation:
The hippocampus works entirely for memory processes (especially new learning). Lasting depression (LTD) is also considered as another form of expression of synaptic plasticity. Long-term potential occurs when pyramidal neurons are depolarized and stimulated by excitatory input. The neurophysiological basis for LTP is certainly related to a subtype of NMDA of the glutamate receptor. This receptor behaves as a coincidence detector between pre- and post-synaptic activity, with an increase in glutamate release at the presynaptic level coinciding with a Postsynaptic depolarization that allows the entry of ca2 +. The NMDA receptor has been proposed as the basic mechanism of learning, because it has the ability to associate different signals, for all this it is necessary to know what neurotransmitters are, their function and what is the role of the receivers in them.