Answers
Assuming that the twitch occurs when the muscle contracts, the time that represents where the twitch starts is approximately 400ms.
What is a twitch muscle contraction?
It refers to the muscle contraction by the nervous system due to an external stimulus.
Different techniques use twitches to study the contraction of the muscle fibers. For instance, Interpolated Twitch Technique measure the extent of voluntary muscle activation.
There are different phases through which the muscle goes since it gets the stimuli,
There is a lag phase between the activation of the motor cells and the fiber contraction. During this time, the action potential moves through the motor neuron.The contraction phase occurs when the muscle gets actually contracted, during which actin and myosin interact.
The relaxation phase is the last one to occur, in which troponin blocks the binding sites of myosin, so it can not interact with actin. The muscle relaxes.
Assuming that the twitch occurs when the muscle contracts, the time that represents where the twitch starts is approximately 400ms.
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how have microscopes led to the evolution of science?
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Answer:
adrenal medulla
Explanation:
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List two inferior goods and describe what makes them inferior. What normal goods could substitute for these inferior goods? What might it take for a consumer to switch to these normal goods?
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Answer:
213
Explanation:
Do chicken s have intelligence? PLEASE HELP
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Answer:
FR om anticipating future events to recalling the trajectory of a hidden object, chickens are incredibly smart. They even possess self-control, holding out for a better food reward, and can assess their own position in the pecking order—both characteristics of self-awareness.
Explanation:
How does your body normally gather information for your brain
to process?
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Answer:
Using information gatherers on your body such as eyes, nose, mouth, tongue, ears, ect.
Explanation:
Answer:
The brain follows signals through the nervous system. The nervous system sends a signal of what we want to do seconds before it happens, to ensure quick reactions. For instance, when we touch a stove, our nervous system already sent the signal seconds ago in an attempt to prevent your skin cells from being burned off. That is why we immediately pull back from intense heat unless we tell ourselves "wait, no!" before the process is over.
I hope this helps! Have an awesome day.
Choose all the answers that are characteristics of antibodies.
i. This molecule is produced by white blood cells
ii. A vaccine causes the body to produce these
iii. These are part of the pathogen
iv. These molecules give the body immunity
v. These molecules flag pathogens for destruction
vi. When a virus mutates, this part can change
vii. This molecule triggers an immune response
Answers
The characteristics of antibodies include the following:
I. This molecule is produced by white blood cells
ii. A vaccine causes the body to produce these
iv. These molecules give the body immunity
v. These molecules flag pathogens for destruction
Therefore options I, II, IV, and V.
The characteristics of antibodiesAntibodies are the proteins of the immune system that helps in the immune response of the body against invading microorganisms.
The characteristics of antibodies include:
Antibodies are produced by special white blood cells called the B lymphocytes.When antigens of viruses are introduced into the body through the vaccine, it causes the body to produce memory antibodies.The production of antibodies by the memory B cells helps to give the body immunity.Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen.Learn more about antibodies here:
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30 points!! imagine you are investigating how camouflage helps an animal to survive. Write out the following components of the experiment.
a) Purpose:
b) Hypothesis:
c) Prediction
d) Describe the basic procedure you would use:
e) How will you collect your data?f) What results would you expect to see from this experiment?
Answers
The number of uncamouflaged animals will be far less than that of the camouflaged animals at the end of the experiment.
What is an experiment?An experiment is a detailed study that tends to identify cause and effect relationship.
The hypothesis in this experiment is that camouflage helps animals to survive in their habitat. The predication is that animals that are camouflaged are able to escape predation owing to the camouflage.
The best test procedure is to observe animals that are camouflaged and those that are not camouflaged in the wild for a period of about three months. Observe whether the number of uncamouflaged animals decreased more than that of the camouflaged animals after three months.
At the end of the experiment, it is expected that the number of uncamouflaged animals will decrease far more than the number of camouflaged animals.
The data will be collected using an unmaned drone over the area of study.
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A bacterial cell gives rise to two genetically identical daughter cells by a process known as.
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A bacterial cell gives rise to two genetically identical daughter cells by a process known as BINARY FISSION
In order words, binary fission is a special type of ase- xual reproduction which occurs in bacteria and other prokaryotes whereby an organic duplicate its genetic material and then divides into two genetically identical parts.
What are prokaryotes?Prokaryotes are organisms that lack definite nucleus. They do not have true nucleus.
So therefore, a bacterial cell gives rise to two genetically identical daughter cells by a process known as BINARY FISSION
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Approximately how long did it take for the human population to reach 1 billion?.
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Answer:
it took all of history until approximately 1803.
Which is NOT a reason why many people consider living off the grid?
Group of answer choices
to have more privacy
to develop self sufficiency
to cut down on increasing utility bills
to join the fad of living sustainably
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Some unicellular eukaryotes called what contain chloroplasts?
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Answer:
Cell as an organism
Some unicellular eukaryotes, called , contain chloroplasts. Yeasts are unicellular , which are eukaryotes. Other unicellular eukaryotes include and algae.
Explanation:
Which statement would be used in an argument against the use of human embryonic stem cells for therapy?
O Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.
O Embryonic stem cells are limited in their ability to become different types of cells.
O It is difficult to grow embryonic stem cells in laboratory cultures, so they are not a practical choice for stem cell therapy.
O Embryonic stem cells originate in plants, so the likelihood of rejection by a patient's body is high.
Answers
The statement 'obtaining embryonic stem cells for use in therapy requires the destruction of embryos' would be used in an argument against the use of human embryonic stem cells for therapy. It is a type of stem cell therapy.
What are embryonic stem cells?The embryonic stem cells are cells obtained from embryos that have the property to divide and specialize into different tissues.
The embryonic stem cells can be differentiated in the laboratory for the development of specific cell lineages.
The therapy using embryonic stem cells involves the use of these types of cells and the destruction of an embryo.
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The statement that is used in an argument against the use of human embryonic stem cells for therapy is that Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.
Are embryos destroyed in a stem cell research?Embryonic stem cell research is one that uses aborted fetuses. There is therefore no link between abortion and human embryonic stem cells.
The Use of embryos for stem cells is known to be an argument that was made against the use of embryonic stem cells as it is one that kills a human blastocyst, and the fertilized egg will not be able to develop into a person.
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Which of the folowing pairs of macromolecules and their monomers are unrelated?
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what is the word that describes a group of organisms that are so closely related in structures that they can reproduce fertile offspring? |
PLS ANSWER FAST THANKS
Answers
Answer:
$exual
Explanation:
A group of organisms that work together to create fertile offspring is call a $exual species. A group of organisms that doesn't have $ex, is called a$exual.
What cross will produce the most pink flowered plants
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Answer:
Explanation: So, the answer for this question is going to be 50% and your parent cross is going to be like this Question # two, this is what cross will produce the pinkest flower plants show up and escort to support your answer and the cross that is going to produce the pinkest flower plants is going to be a cross between a wet.
PLEASE HELP!!!! URGENT
Mutation is a change in the DNA.
Mutations that can be passed on to ________ may result in _________.
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Answer:
Offspring, Genetic drift
Explanation:
Hopefully this helps :)
The cells in this diagram
are
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Striated skeletal muscle fiber
Answer:
It should be striated skeletal muscle fibers, I believe. Correct me if I am wrong.
A hormone is an organ that secretes chemical substances into the bloodstream. Please select the best answer from the choices provided T F.
Answers
Answer:
false
Explanation:
a hormone is not an organ that secretes chemical substances into the bloodstream, hence your answer is false
hope that helps! :)
Answer:
False!
Explanation:
A hormone is a chemical substance produced in an organism, but it is not an organ!
What was newton model of the universe?
Answers
Answer: newton envisions and infinitely large universe
Explanation:
hello humans ~
What are pseudopodia?
A. Vacuole of amoeba
B. False feet of amoeba
C. Heart of amoeba
D. Eye of amoeba
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Answer:
B. False Feet Of Amoeba
Thank Me Later!!
Two practical actions learners could take to improve their chances of receiving a bursary for tertiary education
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The actions that students could take to improve their chances of receiving a bursary should be associated with their motivations and work. It is essential to obtain academic achievements.
What does motivation mean?Motivation, i.e., your internal desire to obtain something, is an essential aspect for improving the chances of receiving a bursary.
Motivation and working hard (in this case, studying hard) are essential aspects to have success in academic life.
Some other tips for improving the chances of getting a bursary may include the interest in the issues of your school and community and applying early for scholarships.
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Survival on land for organisms is difficult because of the problem of.
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Answer: Relatively less abundant water on land makes survival difficult for terrestrial animals. All four problems stem from a lack of water. Terrestrial animals spend energy looking for water, which is not available easily. Terrestrial temperature fluctuates widely, so energy investments have to be made to keep body temperatures regulated.
Explanation:
Cancer is the result of uncontrolled cell
growth
It normally starts with mutations to?
Eventually, a
tumar
forms in the body.
Answers
Answer:
Proto-oncogene gene
Explanation:
The answer may also be both of the Tumor Represent Genes because even if the mutation of a Proto-oncogene gene occurs the Tumor Represent gene will tell the cell to go through apoptosis before it becomes a problem.
6. What responsibility should fathers have to ensure the health of the
developing fetus?
Answers
Answer:
Father should give her healthy food
Explanation:
when mother eat healthy food the child which was in the womb of her will get nutritional energy then child health will be nice.
Which structure controls what enters and leaves the cell.
Answers
The cell membrane is the boundary that controls what enters and leaves the cells
which three events could happen due to deforestation?
Answers
Answer:
Fragmentation of forests leads to allopatric speciation.
Animal species evolve differently to suit the environment.
Animal species migrate to different ecosystems.
Explanation:
Does that help you???
Explanation:
1). Fragmentation of forests leads to allopathic speciation
2). Animal species evolve differently to suit the environment.
3). Animal species migrate to different ecosystems.
Movement of air masses is caused by ____________.
A. conduction
B. throughflow
C. radiation
D. convection
Answers
Answer:
D
Explanation:
When wind is related to the movement of warm and cold air masses the type of heat transfer that this represents convection.
The science of naming and classifying organisms is called:.
Answers
The science of naming and classifying organisms is called:
Taxonomy
What is the role of oxygen in photosynthesis and in cellular respiration?
A Oxygen is used in photosynthesis to produce glucose and is released during cellular respiration.
® Oxygen is released in photosynthesis and used in cellular respiration to produce energy.
© Oxygen is combined with carbon dioxide in photosynthesis to release energy and released from carbon dioxide
during cellular respiration.
Oxygen is released from glucose during photosynthesis and combines with carbon dioxide to produce energy
during cellular respiration.
Answers
A is not correct as oxygen is produced and not used in photosynthesis,
C is not correct as oxygen and carbon dioxide do not interact in photosynthesis,
D is not correct because oxygen is released from plants and not from glucose.
Many weeds create spiky burrs that attach to an animal's hair or fur. As the animal travels, these burrs fall off, successfully
dispersing the plant's seeds.
Type of relationship:
weeds
animal
:: commensalism
:: mutualism
:: parasitism
.: +
::
-
:: O
Answers
Answer:
commensalism
Explanation:
I looked up the definitions and theres no way it could be the others.