Compare the reaction times for voluntary vs. involuntary activation of the quadriceps muscle. what might account for the observed differences in reaction times? outline what has to occur in the body for each reaction to occur. refer to your drawing from step 24. information from the flow chart you created in activity 2.2.1 might also be helpful.

Answers

Answer 1
By comparing the time it takes to react a voluntary muscle and a involuntary one we see that the voluntary takes more time. This is because it takes time for the information to go to the brain, be processed and then have emitted the response of contracting the quadriceps muscle.
The involuntary contraction occurs without being processed by the brain but instead the spinal cord, and that's called a reflex.
 


Related Questions

Determine possible amino acid sequences for the mrna sequence shown below. 5\'–aucggacgaaagcgcu–3\'

Answers

Well the mRNA sequence came from reading the DNA sequence that corresponded, so it would have been:
5'-TAG-CCT-GCT-TTC-GCG-A-3'
So, the amino acids that match up with each codon (3-letter sequence) would be

A 16-year-old girl has been admitted to the emergency department after ingesting 20 g of acetaminophen (tylenol) in a suicide attempt. the care team would recognize that this patient faces risk for which of these complications?

Answers

The care team would recognize that this patient faces the risk of ACUTE FULMINANT HEPATITIS.
Fulminant hepatic failure refers generally to the development of encephalopathy within 8 weeks of the onset of symptoms in a patient with a previously healthy liver. It results in severe impairment of the hepatic functions.

In the final stage of the nuclear fuel cycle, the spent fuel must be transported, processed, and disposed of properly.

True
False

Answers

I believe the answer is true..

Answer: True

The nuclear fuel cycle involves the generation of nuclear energy in a nuclear reactor by utilizing various sources of radiations in a thermal power station. The nuclear fuel is sensitive to impact or friction. If it receives impact or friction, an explosion can occur. Therefore, these fuels should be transported in an appropriate container and should be dump either on shallow land or in water so that dumping does not result in air blast effects or explosion. Hence, final stage of the nuclear fuel cycle involves the spent fuel must be transported, processed, and disposed of properly.  

WILL GIVE A BRAINLEST


Exponential growth is limited by all of the following factors except _____.


laboratory experiments


predator populations


habitat conditions


food resources

Answers

The answer is laboratory experiments.

Answer: laboratory experiments

Explanation:

Exponential growth can be define as the increase in per capita growth of the population when the resources available are surplus. A limiting factor is the one which is capable of limiting the growth, abundance and distribution of population of species. Predator populations, habitat conditions and food resources all are examples of limiting factors which can limit the growth of population exponentially.

Laboratory experiments cannot be consider as limiting factor hence, are not responsible for limiting the exponential growth.

if too many chloride ions are built up outside of the cell, with which type of transport is the carrier protein associated A osmosis B cotransport C diffusion D exocytosis

Answers

C. diffusion

When too many chloride ions are built up outside the cell it means that the concentration on the outside of the cell is high compared to the inside, and therefore, the carrier protein associated will transport the ions as a facilitated diffusion once the transport is being done in favour of the gradient - from where the concentration is higher to where is lower.

Answer:

Cortansport

Explanation:

i just got asked and it was right

Which of these conservation tactics is the best way to reduce the pollution produced by a coal-burning power plant?
A. Install scrubbers in the power plant.
B. Teach about energy conservation.
C. Build cropland in place of rain forests.
D. Investigate new coal mines.

Answers

Answer;

A. Install scrubbers in the power plant.

Explanation;The conservation tactic that can decrease the amount of pollution entering the air when coal is burn is installing scrubbers in power plants. Coal-burning power plants are the largest source of sulfur dioxide, a pollutant gas that contributes to the production of acid rain and causes remarkable health problems. Scrubbers are apparatus that clean the gases passing through the smokestack of a coal-burning power plant.They are installed to reduce sulfur dioxide (SO2) emissions from the coal-burning process.scrubbers are installed to reduce sulfur dioxide (SO2) emissions from the coal-burning process.

Using no more than 13 propositions, compare and contrast the effects of the autonomic divisions.

Answers

Using no more than 13 propositions, create a Concept Map to compare and contrast the motor neurons in the somatic and autonomic nervous systems. 

Using no more than 13 propositions, create a Concept Map to compare and contrast the motor neurons in the somatic and autonomic nervous systems.

What are the functions of autonomic nervous system?

The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal.

There are three branches to the ANS; the sympathetic nervous system, the parasympathetic nervous system, and the enteric nervous system.

With conditions like Type 2 diabetes, the damage can happen in many places throughout your body. The most likely symptoms of autonomic nervous system damage include: Heart rhythm problems.

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Compare and contrast diffusion and osmosis and predict the direction of water a solute movement across a selectively permeable membrane.

Answers

In diffusion, the molecule is moving from the container with higher concentration into the lower concentration, resulting in a similar concentration between both containers in the end.
But in osmosis, the molecule can't move. The molecule can attract water, so the container with higher concentration will attract more water. This will cause the water to move, not the molecule. The water will move from the container with lower concentration into the higher concentration. The result after the osmosis should be both containers have similar concentration, just like diffusion.

Similarities

Diffusion and osmosis are both examples of passive transport.

They transport substances down a concentration gradient.

Difference

Diffusion is the movement of solute particles down a concentration gradient. Osmosis is the movement of water molecules down a concentration gradient.

FURTHER EXPLANATIONActive and Passive Transport

Passive transport is the movement of particles through a membrane which requires no extra energy. It happens spontaneously because there is an imbalance in the amount of solutes  or difference in concentration inside and outside the membrane. In order to reach equilibrium or a state where the amount of solute or concentration on both sides is the same, some substances have to cross the membrane.

When substances move from a region of high concentration to low concentration, it is said that the substances are moving down a concentration gradient. This process is spontaneous meaning it does not require energy to occur. The opposite is true for active transport which requires additional energy for it to happen.

Movement of Substances

In diffusion, solutes move from a concentrated area to a less concentrated area.

In osmosis, the water molecules move from an area with more water molecules (lower concentration of solutes) to the area with less water molecules (higher concentration of solutes).

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Keywords: osmosis, diffusion

Which is a better solvent of salt, based on the results? Why?

Answers

The better solvent of salt, based on the results, is Water cause its capable of dissolving a variety of different substances, which is why it is such a good solvent.

Select the type(s) of prokaryotic regulation that fit(s) the description below: regulator gene product binds dna in a complex with effector molecules.

Answers

It can either be positive inducible regulation or negative repressible regulation. It says that a "regulator gene product binds DNA" which can be either an activator (positive) or a repressor (negative). It says then that it binds "in a complex with effector molecules" which indicates that if it is an activator it induces it (positive inducible) or if it is a repressor it represses it (negative repressible).

Most patients with schizophrenia demonstrate a lower level of frontal lobe activity than healthy control participants. why would this difference be significant?

Answers

The frontal lobe has, as some of its functions, the capability to project possible consequences as a result of current actions leading to the choice between worse and better actions, as well as the ability to give importance or suppress socially unacceptable responses. It is also important when it comes to integrating memories associated with emotions, where the frontal lobe use them to fit socially acceptable norms.

These are all functions that are affected in patients with schizophrenia, explaining why there is lower activity at the frontal lobe on them than on those of the healthy control which had normal levels of activity.

What is one characteristic of a stable ecosystem?
A) a high number of predators
B) an interdependence of organisms
C) a lack of biodiversity
D) an increase in human interference

Answers

A stable ecosystem is one that can support and maintain life. The correct answer is B) an interdependence of organisms because the organisms depend on each other to survive and also help each other.

One of the characteristics of a stable ecosystem is the interdependence of organisms.

• An ecosystem is said to be in stability or equilibrium if it possesses the tendency of coming back to the state of equilibrium after a disturbance or perturbation.  

• The stability of an ecosystem is possible when the organisms within the ecosystem are interdependent.  

• All the organisms living within an ecosystem are interdependent, that is, they depend on each other for survival and existence.  

• Either indirectly or directly, both the animals and plants depend on each other.  

• Like rats eat plants and grains, and snakes eat rats, this snake eventually is eaten by an eagle. All this takes place due to the interdependence of animals and plants food chains.  

Thus, the correct answer is option B, that is, one of the characteristics of a stable ecosystem is an interdependence of organisms.

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Amniocentesis is a process in which the amniotic fluid is taken from the uterus for diagnosis. It is used to determine the sex of a fetus. What could be another benefit of this process? A) triggering of an immune response B) determination of genetic disorders C) studying chromosomal changes in mitosis cell division D) identification of diseases associated only with autosome

Answers

the answer would be C. studying chromosomal changes in mitosis cell division. because mitosis is when the parent cells are just copies of an identical cell or known as the daughter cell.

Answer:

b, I just had it on USA Test Prep

Explanation:

Laocoön and his sons revealed ____ greek attitudes about the body during the hellenistic period.

Answers

Laocoön and his sons (Laocoon group) revealed changing Greek attitudes about the body during the Hellenistic period.
Hellenistic period covers the period which lasted from the death of Alexander in 323 B.C. until 31 B.C., when there was an emergence of Roman Empire. The word Hellenistic originated from the word Hellazein, the meaning of this word in English is to speak or to identify Greeks.

What makes a forest sustainable?
A. Demand increases while supply stays the same.
B. Demand exceeds supply.
C. Supply exceeds demand.
D. Supply and demand are both zero.

Answers

supply exceeds demand seems like to be the correct answer since it could be longer lasting.

Supply exceeds demand makes a forest sustainable. So, the correct option is C.

What is Sustainability?

Sustainability is defined as a social goal concerned with the ability of people to safely co-exist on Earth in the long run, which includes meeting the needs of present generations without compromising the needs of future generations. It also ensures a balance between economic development, environmental care and social welfare.

Replanting forests after harvesting contributes to ecologically sustainable forestry where selective logging and thinning prevent the felling of entire stands. Pruning avoids cutting down whole trees for timber and prevents the spread of pathogens causing supply to exceed demand thus making the forest sustainable.

Thus, the correct option is C.

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Mike has suffered brain damage after only a light blow to the head. Mike could have ___________ cerebrospinal fluid in the ____________ nervous system.

too little; peripheral
too little; central
too much; peripheral
too much; central

Answers

Too little; peripheral is your answer. :)

How can people help keep freshwater resources renewable? A. Avoid drip irrigation systems on farms.
B. Conserve residential water use.
C. Build thermal power plants.
D. Add water features to private gardens.

Answers

The correct answer is option B

The best way by which people can help to keep the fresh water as a renewable resource is by conserving the residential water.

The amount of water wasted by the domestic uses is at highest in the priority list.

So, the domestic water must be conserved to keep it as renewable resources of freshwater.

answer : conserve residential water use.

Explanation:

De roode notes that animals besides humans self-medicate. from your own knowledge of animals, what are some ways that domestic pets like cats and dogs self-medicate?

Answers

One thing that was shocking is when a cat would eat their placenta after giving birth to a kitten. I was surprised to learn that the when eating the placenta, a chemical is released back into their body that acts as a numbing agent. This can make the birth of the kittens will be less painful. When a human gives birth, we tend to load up on medication to make the process less painful. The fact that cats figured out a way to medicate themselves during labor is incredible. This can make the birth of the kittens will be less painful.

Which of the following best describes what happens to atmospheric carbon as it moves through the carbon cycle ?

A- it forms fossil fuels through the process of sedimentation

B- it combines with pollutants to become acid rain through the process of transpiration

C- it is converted into complex carbohydrates through the process of cellular respiration

D- it becomes glucose through the process of photosynthesis

Answers

Correct answer: "D - it becomes glucose through the process of photosynthesis"

The atmospheric carbon is absorbed by plants in the form of carbon dioxide and used in the process of photosynthesis. Photosynthesis takes 6 carbon dioxide molecules and 6 water molecules to produce a molecule of glucose and 6 of oxygen. That's where most of the atmospheric carbon is used in.
Final answer:

Atmospheric carbon becomes glucose through the process of photosynthesis, which is part of the carbon cycle. This process transforms carbon dioxide from the atmosphere into organic molecules within plants.

Explanation:

The question asks about the fate of atmospheric carbon in the carbon cycle. The correct answer is D - it becomes glucose through the process of photosynthesis. During photosynthesis, plants absorb carbon dioxide from the atmosphere and use the carbon atoms to form glucose, a simple sugar that plants use for energy and growth. This process, therefore, moves carbon from the atmosphere into living organisms, where it can then be used to produce complex organic molecules like carbohydrates, proteins, and lipids.

In the greater context of the carbon cycle, carbon is also sequestered in the oceans, land sediments, and Earth's interior, among other reservoirs. Over long periods, carbon can become trapped in sediments and potentially form fossil fuels through processes that include sedimentation. However, the immediate process that transforms atmospheric carbon into a form that can be used by living organisms is photosynthesis, not the formation of fossil fuels or the creation of acid rain through pollutants.

In your own words what is the application (purpose) of macconkey agar

Answers

The Macconkey agar is both a selective and differential culture medium for bacteria. It selects only those that are gram-negative because the crystal violet and bile salts contained in it inhibit the growth of gram-positive bacteria. And it differentiates the gram-negative enteric bacteria based on lactose fermentation because these bacteria can ferment lactose and therefore be detected by a pH indicator that turns the medium into red.

Final answer:

MacConkey Agar is a selective and differential medium used to identify and differentiate bacteria based on their ability to ferment lactose. Sorbitol-MacConkey Agar distinguishes E. coli strains by their sorbitol fermentation capability. These agars are essential for identifying lactose fermenters and assisting in the diagnosis of bacterial infections or intoxications.

Explanation:

The application of MacConkey Agar (MAC) plates lies in its use in microbiology to differentiate bacteria based on their ability to ferment lactose. Bacteria that can ferment lactose, like E. coli, will produce acid during the fermentation process, turning the surrounding medium red or pink due to the pH indicator present in the agar. Non-lactose fermenting bacteria, such as Salmonella spp. and Shigella spp., will remain colorless or take on the agar's natural color. Sorbitol-MacConkey Agar (SMAC) plates serve a similar purpose but they are used to distinguish E. coli O157:H7 (which does not ferment sorbitol) from other E. coli strains by the presence or absence of red-colored colonies.

MAC is also an example of both a selective and differential medium. It is selective because it contains bile salts and crystal violet dye that inhibit the growth of Gram-positive bacteria, thereby selecting for Gram-negative organisms. It is differential because it includes a lactose source and a pH indicator that reveals whether the growing bacteria can ferment lactose. When blood samples show no signs of bacterial infection, and there is a suspicion of intoxication, MacConkey agar can help confirm the lack of common enteric bacteria, aiding in the diagnostic process.

as the nights get longer and the temperatures become cooler, some plants

Answers

the answer is enter a state of dormancy, or inactivity.

Answer:

As explained below.

Explanation:

Generally, what is seen as the night gets cooler the temperature drops to point and plant growth and developmental activities stopped even the extreme temperature can have profound impacts on the development of plants, the activity is limited to the time of day and plays then begins to sleep. Foremost plants spring season which is associated with warm climates is suitable for the growth and germination of seeds. Some plants are adapted to the cool and colder weathers like the Lily, Pansies and the Arctic Moss, Arctic Willow are amongst the commonest type. These plants have fewer or fewer leaves and condense into small shapes and hence save energy and later on open and take energy and heat from the sun.

Identify the relationships between the zooxanthellae and the hard coral, the remora and the manta ray, the tiger shark and the green sea turtle, and the dolphin and the school of trevallies and state why you chose that relationship. The relationships will be predation, competition, commensalism, or mutualism.

Answers

Zooxanthellae and the hard coral-Zooxanthellae are the symbiotic algae that live within the hard or stony corals. The symbiotic relation is based on the coral's inability to generate sufficient amounts of food and the algae’s ability for photosynthesis and converting chemical elements into energy. - mutualism 

The remora and the manta ray-The benefits to the remoras and remora for living in such close association with their larger hosts are clear, but there is a debate about whether the manta rays receive a significant return in benefits from these relationships. - mutualism 

The tiger shark and the green sea turtle - the turtle is eaten by the shark-predation 

The dolphin and the school of trevallies-To feed, dolphins use a fast, surprise attack, and, unlike the hunting packs of trevallies, dolphins can successfully hunt alone. - predation

I hope that this is the answer that you were looking for and it has helped you

On most bicycles, the tires include a separate inner tube inside the tire itself. when the inner tube is inflated, often to pressure greater than 100 pounds per square inch, it does not burst because the walls of the tire support it. without the tire, the inner tube would burst long before such high pressures were reached. similarly, the cytoplasm of plant cells in hypotonic conditions is under relatively high osmotic pressure. however, the cells do not lyse (or burst) due to the presence of the _ that provides structural support for the _.

Answers

However, the cells do not burst due to the presence of the CELL WALL that provided structural support for the CELL.
The cell wall is a cell organelle that is found in plant cells only. It serves as a sort of skeleton to the cell because it gives rigidity and structural support to the cells. The cell wall is located outside the cell membrane and it is made up of cellulose. It also gives protection to the plant cells.

Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step. What should she do next? perform an experiment design a procedure make observations form a hypothesis

Answers

Answer:

Form hypothesis or D

Explanation:

Hope this helps

Answer:

D

Explanation:

Plants derived via asexual reproduction from a single parent are

Answers

...are clones.

A plant that originated from another plant through asexual reproduction, has identical genetic information as the "parent". the only possible difference that can result is if it occurs mutations in the DNA, if not they will share the same DNA.
 If it went through sexual reproduction, the plant originated would have a mix of two different DNA

Where should an infosec unit be placed within an organization? where shouldn't it be placed?

Answers

Infosec stands for information security program, which is the program that identifies and contains any and all risks that may be posed to the information sector of the company. Absent any internal contradiction the information security unit should be placed in the information technology department of the organization. If there is an internal contradiction, then the security and information sectors should not be placed together, but instead in separate divisions of the organization.

Which organism is probably responsible for keeping the food web and the pyramids in their respective shapes?

Answers

Producers are organisms that have the ability to use photosynthesis (plants) or other mechanisms (such as chemosynthesis in some extremophiles) to transform light, water, and carbon dioxide into organic matter and chemicals that are high in energy.

A food web is a chain of consumption in which producers are eaten by primary consumers (herbivores), who are then eaten by secondary consumers (carnivores), and so on.

The base level represents the producers in ecological pyramids (such as energy pyramids or biomass pyramids).

Therefore, Trophic levels, the energy or biomass declines, indicating both the transmission of energy and the fact that energy is lost at each level of the trophic pyramid.

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How do doctors detect abnormalities in patients with the help of an EKG?

Answers

The EKG will show up very unnormal and will change the pattern.

The right answer is by determining changes in the heartbeat

Three questions are unavoidable when interpreting an ECG:

• What is the heart rate?

A normal frequency is between 50 to 100 / minute. Below 50 / min, we are talking about bradycardia, above 100 / min, we are talking about tachycardia.

• Is the heart rhythm regular or irregular (arrhythmia)?

On a normal ECG, the space between 2 Q-R-S is always the same regardless of the time of recording (in green in the following diagram). This question is fundamental to detect arrhythmias.

• Is the rhythm sinus (or normal)?

Each P-wave must be followed by a Q-R-S segment. This question will help identify conduction disorders between the atria and the ventricles.

A class that is used as a basis for inheritance is called a ____ class or a superclass.

Answers

Taxonomic ! Hope this helps :)

A class that is used as a basis for inheritance is called a taxonomic class or a superclass.

What is inheritance?

Inheritance is defined as a function or procedure whereby new classes are made from older classes. Evolutionary transformation requires genetic inheritance. It explains how genes are transmitted down across generations. As the primary code does not need to be written again, inheritance can save time and effort. A simple and understandable model structure is provided by inheritance.

Taxonomic is defined as the study of all plants, animals, and microorganisms in the globe. It includes naming, characterizing, and classifying organisms. It helps in the taxonomy of species so that biological information may be conveyed more efficiently.

Thus, a class that is used as a basis for inheritance is called a taxonomic class or a superclass.

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In a chemical reaction, which is MOST LIKELY reactant for these products?
? ➡️ CaO + CO2

A. 3O2
B. CO2
C.2KCI
D. CaCO3

Answers

Answer:

D.[tex]CaCO_3[/tex]

Explanation:

We are given that a chemical reaction

_ [tex]\implies CaO+CO_2[/tex]

We have to find the  value of reactant for given product.

Reactant: The substance  on the left side in chemical reaction are called reactants.

Product: The substance  on the right side in chemical reaction are called products.

In given product, there are calcium oxide and carbon dioxide.

Therefore, calcium, oxygen and carbon must be  present in reactants.

[tex]CaCO_3\implies CaO+CO_2[/tex]

Hence, option D is true.

Answer: D.[tex]CaCO_3[/tex]

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