Juan and sergei are making a display about water conservation. To make a greater visual impact, they decide to add blue food coloring to the water, but just enough that it is noticeable. Juan adds 2 drops of food coloring to the water, and stops because he can see the blue color. Sergei tells him to put another drop in because he doesn’t see any blue yet. Juan’s _______________ is probably lower than sergei’s.
Answers
Juan’s Absolute threshold is probably lower than Sergei's.
An absolute threshold is the lowest level of a stimulus that an organism can detect. This definition originated in neuroscience and psychophysics. The absolute threshold has been redefined in light of the signal detection theory as the point at which a stimulus will be picked up a certain percentage of the time (typically 50%). The subject's goals and expectations, cognitive processes, and degree of stimulus adaptation are a few examples of the many variables that might affect the absolute threshold. The smallest stimulus level that may be recognized is known as an absolute threshold, which is often regarded as occurring at least half the time. The phrase is frequently employed in experimental neuroscience research and is applicable to any stimuli.
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Related Questions
Match each part of the heart with the correct label.
Answers
Answer:
1. Aorta
2. Pulmonary Artery (left)
3. Pulmonary Veins (left)
4. Left Atrium
5. Bicuspid Valve
6. Aortic Semi-Lunar Valve (one of the av valves)
7. Left Ventricle
8. Right Ventricle
9. Tricuspid Valve (one of the av valves)
10. Right Atrium
11. Pulmonary Semi-Lunar Valve
12. Superior Vena Cava
Explanation: is correct
a null mutation in which of these genes would cause abc mrna to be delivered to the correct location but not translated?
Answers
Null mutation would cause ABC mRNA to be delivered to the correct location but not translated is EIF2B. Null mutation refers to a mutation that completely abolishes the function of a gene by disrupting the gene's coding sequence or regulatory elements. In other words, if a null mutation occurs in a gene, the gene product will not be produced.
There are several genes that could potentially be involved in this scenario, but one strong candidate is a gene called EIF2B. EIF2B encodes a complex of proteins that is essential for the initiation of protein translation. Specifically, the EIF2B complex is required to catalyze the exchange of GDP for GTP on the translation initiation factor eIF2, which is necessary for the assembly of the ribosome and the initiation of protein synthesis.
If a null mutation occurs in EIF2B, the eIF2B complex will not be functional and translation initiation will be impaired. This could lead to a situation where ABC mRNA is correctly transported to the site of translation (i.e. the ribosome), but the initiation of protein synthesis is blocked and ABC protein is not produced.
There may be other genes or factors involved in this process as well, and there may be other scenarios that could also lead to ABC mRNA being delivered but not translated. However, based on the information provided in the question, a null mutation in EIF2B seems like a reasonable answer.
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Match the following variations in the respiration to their definitions. Accelerated respiration Dyspnea Hyperventilation Kussmaul Respiration Temporary cessation of breathing Rapid breathing induced by acidosis Accelerated respiration Labored, gasping breathing Increased breathing in response to exercise Reduced pulmonary ventilation Apnea Respiratory Arrest Orthopnea Labored, gasping breathing Permanent cessation of breathing Permanent cessation of breathing Rapid breathing induced by acidosis Hyperpnea Hypoventilation Tachypnea Increased breathing in response to exercise Dyspnea when lying down Reduced pulmonary ventilation Increased pulmonary ventilation
Answers
The given table can be completed as follows:Variations in respiration Definitions Accelerated respiration Increased breathing in response to exercise Dyspnea Hypoventilation Dyspnea when lying down Hyperventilation Rapid breathing induced by acidosis Kussmaul .
Respiration Rapid breathing induced by acidosis Apnea Permanent cessation of breathing Orthopnea Dyspnea when lying down Tachypnea Rapid breathing induced by acidosis Hyperpnea Increased breathing.
response to exercise Hypoventilation Reduced pulmonary ventilation Dyspnea Labored, gasping breathing Reduced Reduced pulmonary ventilation.
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How does the intracellular fluid compartment differ from the extracellular fluid compartment?.
Answers
A company is growing algae in big tanks to make fish food. However, the algae is not growing very quickly, and they suspect either phosphorus, nitrogen, or iron is limiting. What could the company do to figure out which nutrient is limiting?a)Add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth.b)Add phosphorus, iron, and nitrogen to all tanks, and see which nutrient increases algal growth.c)Add phosphorus to all tanks, because phosphorus is the nutrient that limits algal growth.d)Add nitrogen to all tanks, because nitrogen is the nutrient that limits algal growth.
Answers
Experiment
In this experiment, as the question the investigators are trying to answer is what component is the limiting one, it is necessary to test every one of them, independently. Therefore, the best option is to change the concentration of one of them and leave the rest unchanged. To accomplish this, would be necessary three different tanks, one for phosphorus, one for iron, and one for nitrogen (option A).
To determine which nutrient is limiting algal growth, the company can add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth. Therefore, option A is correct.
By adding each nutrient separately to different tanks and observing the effects on algal growth, the company can identify which nutrient is limiting. If the addition of phosphorus to one tank leads to increased algal growth, it suggests that phosphorus was the limiting nutrient.
Similarly, if the addition of nitrogen or iron to their respective tanks results in increased algal growth, it indicates that nitrogen or iron, respectively, was the limiting nutrient. Thus, option A is correct.
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What was the reason for Mendel to use pea plants in his experiments?
Answers
Answer:
He chose peas because they had been used for similar studies, are easy to grow and can be sown each year.
The geosphere is one of four interconnected systems and includes __________
Answers
Answer:
the atmosphere,hydrosphere,and the biosphyre
Explanation:
Name the following.
(a) Tissue that forms the inner lining of our mouth.
(b) Tissue that connects muscle to bone in humans.
(c) Tissue that transports food in plants.
(d) Tissue that stores fat in our body.
(e) Connective tissue with a fluid matrix.
(f) Tissue present in the brain
Answers
b) tendon
c) phloem
d) adipose tissue
e) blood
f) gray matter and white matter.
Question 1 (5 points)
The energy driving Earth's systems comes from two sources: heat from the sun and heat flowing out of the moon as it cools at night.
True
False
Question 2 (5 points)
a
The number of fossils would decrease as the layers accumulate.
b
The types of fossils would be similar but would show gradual structural changes.
c
The number of fossils would rise and then immediately disappear.
d
The types of fossils would stay exactly the same in every layer.
Question 3 (5 points)
True or False: A system is a group of parts that work together as a whole.
True
False
Question 4 (5 points)
a
b
c
d
Question 5 (5 points)
This is the principle of _________________ which includes natural processes of all different rates, from abrupt and extreme to barely detectable and very slow.
a
Catastrophism
b
Uniformitarianism
c
Gradualism
d
Biosphere
Question 6 (5 points)
Oceans cover more than ____________of the Earth's surface, making the oceans the largest part of the hydrosphere.
a
40%
b
50
c
60%
d
70%
Question 7 (4 points)
Earth's atmosphere is a mixture of gases, primarily _____________ and ________________.
a
Oxygen and Hydrogen
b
Nitrogen and Hydrogen
c
Nitrogen and Oxygen
d
Oxygen and Helium
Question 8 (5 points)
a
b
c
d
Question 9 (10 points)
Read the questions below and match the correct answer.
Column A
1.
what is called the thin layer of air extending from the surface of the Earth to space.:
what is called the thin layer of air extending from the surface of the Earth to space.
2.
This part of the system consists of all of the water on a planet.:
This part of the system consists of all of the water on a planet.
3.
This is the part of the Earth system that includes rocks, minerals, and landforms on the surface, as well as the molten rock and metals in the planet's interior.:
This is the part of the Earth system that includes rocks, minerals, and landforms on the surface, as well as the molten rock and metals in the planet's interior.
4.
This system consists of the regions of the atmosphere, geosphere, and hydrosphere that are that are occupied by living organisms.:
This system consists of the regions of the atmosphere, geosphere, and hydrosphere that are that are occupied by living organisms.
Column B
a.Bioshpere
b.Geosphere
c.Hydrosphere
d.Atmosphere
Question 10 (4 points)
Numerical Weather Prediction (NWP), atmospheric data from many sources are plugged into supercomputers running complex mathematical models.
True
False
Question 11 (5 points)
The Earth system involves a constant flow of matter through different parts. The flow of matter is caused by _____________________.
a
Energy
b
Resources
c
Gravity
d
Inertia
Question 12 (5 points)
In this image you can see how _______________ has slowly carved away at the mountains.
a
Volcanoes
b
Wind Erosion
c
Storm Erosion
d
Acid Rain
Question 13 (5 points)
Geologic change on Earth's surface may occur suddenly as the result of events, such as an explosive volcanic eruption, an earthquake, or a landslide.
a
Catastrophism
b
Uniformitarianism
c
Experimentation
d
Gradualism
Question 14 (4 points)
Landforms are created and destroyed by competing forces.
True
False
Question 15 (4 points)
Word Bank: Competing Forces, Deposited Sediment, Destructive Forces, Constructive Forces,
1. Landforms are created and destroyed by
2. Physical features on Earth’s surface are caused to grow by
3. This force wears down landforms
4. This can cause landforms to grow
Blank 1:
Blank 2:
Blank 3:
Blank 4:
Question 16 (5 points)
The processes of ___________ and erosion work over time to change once high mountains into smooth, flat plateaus.
a
Climate Change
b
Weathering
c
Gravitational Pull
Question 17 (5 points)
This image below is an example of _________________.
a
A Solar Eclipse striking Earth
b
A UFO striking Earth
c
A comet striking Earth
d
A meteorite striking Earth
Question 18 (4 points)
Weather prediction is extremely valuable for reducing property damage and even fatalities.
True
False
Question 19 (5 points)
Column A
1.
A:
A
2.
B:
B
3.
C:
C
4.
D:
D
Column B
a.Inner Core
b.Outer Core
c.Mantle
d.Crust
Question 20 (5 points)
View the gif below and answer the question.
What process does this gif best represent?
a
Seafloor spreading
b
Convection cycles in the mantle
c
Radiation in the mantle
d
Conduction cycles in the mantle
Answers
Answer:
the answer will be False
I need help Please!!!
Answers
Answer:
it is option - B - An abandoned field
Answer:
b
Explanation:
I just think it is b.
what are three ways that substances can be described?
Answers
Answer:
chemical name, for example, benzene;
number, for example, EC number 200-753-7, and.
chemical composition, for example, >99 % benzene and <1 % toluene. The composition is determined by chemical analysis.
Explanation:
hope thishelps!
How can copper enter our body
Answers
Answer:
your question is wrong
Explanation:
plz correct it
Explanation:
st4h46wHow can copper enter our body
The fruiting body found above ground in fungi is called the
A. cap.
B. hyphae.
C. mycelium.
Answers
Answer:
fruiting body is called cap
The mycelium is the fruiting body found above ground in fungi.
The pileus is the technical name for the cap, or cap-like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore-bearing surface, the hymenium.
A hypha is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium.
A mycelium is a network of fungal threads or hyphae. Mycelia often grow underground but can also thrive in other places such as rotting tree trunks. A single spore can develop into a mycelium. The fruiting bodies of fungi, such as mushrooms, can sprout from a mycelium.
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Mework Assignment Saved Help Place the following labels in order indicating the passage of lacrimal fluid through the lacrimal apparatus beginning with the site of synthesis. Lacrimal gland Lacrimal gland Lacrimal ducts Lacrimal punctum Inferior meatus of the nasal canal Lacrimal sac Conjunctiva Inferior meatus of the nasal Lacrimal punctum Nasolacrimal duct Nasolacrimal duct Lacrimal ducts Lacrimal sac Lacrimal canal Lacrimal canal Prex 30 of 34l Net
Answers
The labels in order indicating the passage of lacrimal fluid through the lacrimal apparatus beginning with the site of synthesis are
Lacrimal gland Lacrimal ductsConjunctivaLacrimal punctumLacrimal canalLacrimal sacNasolacrimal ductInferior meatus of the nasal canalWhat is the lacrimal gland?The lаcrimаl glаnds аre serous type exocrine glаnds thаt secrete lаcrimаl fluid onto the surfаces of the conjunctivа аnd corneа of the eye. Lаcrimаl fluid аcts to the cleаn, nourish аnd lubricаte the eyes. It forms teаrs when produced in excess. It is locаted аnteriorly in the superolаterаl аspect of the orbit, within the lаcrimаl fossа, а depression in the orbitаl plаte of the frontаl bone.
The lаcrimаl аppаrаtus is the system responsible for the drаinаge of lаcrimаl fluid from the orbit. Аfter secretion, lаcrimаl fluid circulаtes аcross the eye, аnd аccumulаtes in the lаcrimаl lаke, locаted in the mediаl cаnthus of the eye. From here, it drаins into the lаcrimаl sаc viа а series of cаnаls.
Your question is incomplete, but the question probably can see in the Attachment.
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Please help
Show the overall process and explain the benefits of using hydrilla plant to test for oxygen extraction
Answers
Which type of muscle contraction requires the use of specialized equipment and would not be used in a general resistance training program
Answers
The type of muscle contraction that requires the use of specialized equipment and would not be used in a general resistance training program is the isokinetic contraction. Isokinetic contraction is a muscle contraction that occurs at a consistent velocity during muscle shortening or lengthening.
This type of contraction can only be accomplished with specialized equipment that maintains a consistent velocity throughout the range of motion. The type of muscle contraction that requires the use of specialized equipment and would not be used in a general resistance training program is the isokinetic contraction.
During an isokinetic contraction, the speed of the motion is constant throughout the whole range of motion, and the resistance that is applied is variable to accommodate the movement. This type of muscle contraction is mostly used in rehabilitation programs because it allows for smooth and controlled movements through a complete range of motion.
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6. RNA receives information from DNA by
1 binding with a double helix as a third strand
2 matching with subunits of a single strand of
DNA
3 making an exact copy of the DNA molecule
4 accepting proteins through pores in the nu-
clear membrane
Answers
Answer:
2
Explanation:
because complementary RNA nucleotides bind with the template strand of DNA
what variables can affect the taste of soda
Answers
There are two major factors that affect the quality of fountain soda. First, the quality of the water mixed with CO2 will alter the taste. Second, the percentage mix of syrup to water/CO2 will affect the flavor. The mix varies in each geographical region.
what's one thing u wonder about ocean exploration
Answers
What happens when a cell grows to be too large?
Answers
Answer:
If this is an animal cell, the cell will likely burst.
If this is a plant cell, the cell will most likely not burst, but increase in turgor pressure.
Plant cells usually don't rupture because they have a cell wall surrounding the cell. Animal cells do not have a cell wall, and thus the plasma membrane may uncontrollably expand to the point of bursting.
which of the following are part of the cardiopulmonary system?
A. heart and lungs
B. larynx and bronch
C. i pharynx and lungs t
D. rachea and heart
Answers
The cardiopulmonary system consists of two main components: the cardiovascular system (heart and blood vessels) and the respiratory system (lungs and airways). Among the given options, A. heart and lungs best represent the essential parts of the cardiopulmonary system.
The heart is a muscular organ responsible for pumping blood throughout the body via the blood vessels, ensuring that oxygen and nutrients reach the body's cells and waste products are removed. The lungs, on the other hand, are vital for gas exchange, allowing the body to inhale oxygen and exhale carbon dioxide.
Option B, larynx and bronchi, are components of the respiratory system but do not encompass the full scope of the cardiopulmonary system. The larynx is involved in vocalization, while the bronchi are airways that lead from the trachea to the lungs. Option C, pharynx and lungs, represents a part of the respiratory system, but the pharynx is not specific to the cardiopulmonary system as it is also involved in digestion. Finally, option D, trachea and heart, includes one component of each system, but it does not provide a complete representation of the cardiopulmonary system.
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The graph below shows the amount of CO2 (carbon dioxide) in the atmosphere throughout Earth’s history.
Which of the following claims is supported by the evidence in this graph?
A
The amount of CO2 in the atmosphere is currently decreasing at an extremely fast rate.
B
High amounts of CO2 in the atmosphere correspond to cold periods in Earth’s history, called ice ages.
C
The amount of CO2 in the atmosphere in 2018 was significantly higher than any other time in the past 800,000 years.
D
The amount of CO2 in the atmosphere from 1800 to 2018 increased at a slower rate than at any other point in the past 800,000 years.
Answers
Explanation:
is there a graph to be shown
According to natural selection, individuals that tend to survive are those that have which of the following?
the ability to quickly produce the most offspring
the largest and strongest body structures
the genetic variations that are best suited for their environment
the longest legs and fastest running speeds
Answers
Answer:
The genetic variations that are best suited for their enviornment
Explanation:
Those that are not well suited for their environment will die off, leaving only the ones that are suited for it. This species will slowly take hold until the species has adapted and become a completely different one.
Answer:
The genetic variations that are best suited for their environment
Explanation:
This way they may also have a chance to evolve if natural selection kept going until everyone of the species had that trait.
a bacterial cultures has an initial population of 10000. if its population declines to 6000 in 4 hours, what will it be at the end of 6 hours
Answers
After 10 hours, the bacteria's population will have decreased to roughly 27.
Detailed explanation:
use the equation P = Iekt.
The equation becomes 10,000 = Iek if the starting population of the bacterial culture is 10,000. (0)
with I = 1 and t = 0 10000
P = 4000 and t = 4 hours if its population drops to 6000 in that amount of time.
As a result, 6000 = Ie4k... 2
We assume the natural logarithm of both sides in equation 2 to be;
I lne4k = ln6000
I k = ln6000/4I k = ln6000/4I = ln6000 (10000) I equals 10000 k = ln6000/40000 k = 4/40000 k = 0.0001 because.
Since P = Iekt, the population will be as follows after 10 hours.
I=10,000 k=0.0001, and t=10
P = 10000e^(0.0001×10)
P = 10000e^0.001
P = 10000×0.0027
P = 2
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the lac repressor protein controls expression of the lac operon by ________.
Answers
The lac repressor protein controls the expression of the lac operon by binding to the operator region of the lac operon.
The lac operon is regulated by a DNA binding protein known as the lac repressor protein, which controls the transcription of the genes within the operon. The lac repressor protein functions as a negative regulator of the lac operon by binding to the operator region of the lac operon.
The operator region is situated upstream of the promoter region and consists of a specific DNA sequence to which the lac repressor protein binds. The binding of the lac repressor protein to the operator region blocks the RNA polymerase enzyme from binding to the promoter region, preventing the transcription of the genes within the lac operon.
When lactose is present in the cell, it binds to the lac repressor protein, causing a conformational change that weakens the interaction between the repressor and the operator region. This allows the RNA polymerase to bind to the promoter region and transcribe the genes within the operon.
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which of the following is false about proteins? proteins are always made from one polypeptide chain. proteins are composed of many amino acids. proteins can also be called polypeptides. proteins result from the expression of genes.
Answers
False, Proteins are always made from one polypeptide chain.
Amino acids are the basic units of proteins. They are tiny organic compounds with an alpha (central) carbon atom coupled to an amino group, a carboxyl group, a hydrogen atom, and a variable component known as a side chain (see below). Peptide bonds, which connect several amino acids, help proteins create lengthy chains of amino acids. The biological process that links the carboxyl group of one amino acid to the amino group of a nearby amino acid results in the extraction of a water molecule, forming peptide bonds. A protein's main structure is thought to be the orderly arrangement of its amino acids.
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Which two characteristics do all animals have?
Answers
Answer:
All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.
Explanation:
The two characteristics that all animals have in common is that their cells have a nucleus and membrane-bound organelles. The correct option is C.
What are eukaryotic organisms?Eukaryotes are organisms whose cells have membrane-bound organelles in addition to a nucleus.
Eukaryotic creatures come in a great variety, including most algae, all animals, plants, fungus, and protists.
Prokaryotes are creatures without a nucleus or other organelles in their cells. Bacteria and archaea, two separate groupings of prokaryotes with allegedly independent evolutionary histories, are separated into.
The majority of prokaryotes are tiny, single-celled creatures with a straightforward structure.
Each animal has a cell that is composed of different organelles, including the nucleus, which houses all of the essential information, including DNA, and a membrane-bound organelle that protects and molds the cell.
As a result, the nucleus and membrane-bound organelles are among animals' shared traits.
Thus, the correct option is C.
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Your question seems incomplete, the missing options are:
O They are symmetrical and heterotrophic
O They are heterotrophs and have a backbone.
O Their cells have a nucleus and membrane-bound organelles.
O They have a backbone, and their cells have membrane-bound organelles.
• Ms. Ritter has a problem. She claims that her
baby's father is lan who has blood type A
(Ai). Ian denies the baby and refuses to pay
child support. He claims that it's her
ex-boyfriend's baby. The ex-boyfriend has
blood type AB. The baby's blood type is O
and the mother's blood type is B (Bi).
Answers
Answer:
Mrs. Ritter, whose blood type is B (Bi) is right in claiming that Ian - blood type A (Ai)- is the father of her baby, with blood type O (ii). Ex-boyfriend AB (AB) cannot be the father.
Explanation:
The blood type, according to the ABO system, is determined by the presence or absence of surface antigens A and B. In addition, genotypes can be co-dominant, in the case of A, B and AB, heterozygous (Ai or Bi) and recessive, in the case of group O (ii)
Type A contains the antigen A and its genotype can be AA or Ai. Type B contains the antigen B, whose genotype can be BB or Bi. Type AB contains both antigens and a single genotype expression AB. Type O blood lacks surface antigens, its genotypic expression being ii.According to this, to check if Mrs Ritter's baby is Ian's child, a crossing can be done:
♂ Ai
♀ Bi
Alleles A i
B AB Bi
i Ai ii
Ian and Mrs Ritter have a 25% chance of having a child with blood type O (ii), so the baby may be Ian's child.
To find out why the ex-boyfriend can't be the father
♂ AB
♀ Bi
Alleles A B
B AB BB
i Ai Bi
It is not possible that Mrs. Ritter's ex-boyfriend is the father of the baby, as the possible offspring in the crossover are A, B or AB.
Which of the following are an example of run off? A rivers, waterfalls, and oceans B rivers, streams, and waterfalls C precipitation, streams, and oceans D Waterfalls,streams, and puddles
Answers
Answer:
D
Explanation:
Im pretty sure its D. I hope it helps!
________________ plays an important role in wakefulness, digestive system, and the immune system.
Answers
Answer:wbc or white blood cells
Explanation: