gg Calcium ions are released into the myofibrils by the __________, when activated by an impulse from a motor neuron.

Answers

Answer 1

Answer:

sarcoplasmic reticulum


Related Questions

Rainbow trout is non-native to the United States. However, this species is breeding with the native Gila trout. Scientists recently observed that the Gila trout were becoming extinct. What is the cause of their extinction?

Answers

Answer:However, this species is breeding with the native Gila trout. Scientists recently observed that the Gila trout were becoming extinct. What is the cause of their extinction? The European buckthorn was introduced to North America as an ornamental plant.

Explanation:

that's because when they become extinct it makes them turn

Which of the following statements apply to leukocytes? Select all that apply.
Multiple select question.

They eject major organelles when mature.

They are capable of protein synthesis.

They live approximately 120 days.

They retain their organelles throughout their life time.

They are not uniform in form and function.

Answers

Explanation:

leukocytes are white blood cells. mainly 4 killing bacterial infections.

Leukocytes are the specialized cells which are a part of blood. These are known as white blood cells. These protects the body. These produce antibodies. Thus, the correct options are B, D, and E.

What are Leukocytes?

Leukocytes are the white blood cells. These are a type of specialized cell type which is present in blood along with erythrocyte and plasma. Leukocytes are primarily responsible for protecting the body from pathogens and germs by producing antibody proteins which fight against these organisms.

Leukocytes are irregular in shape. They can change their shape to engulf or kill the bacteria which enters the blood to prevent disease. Erythrocytes change their shape which allows them to pass through the capillaries which are very tiny.

Therefore, the correct option is B, D, and E.

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You close your eyes, with your hand in front of your face for one minute. You quickly blink your eyes and find that even with your eyes closed, you can "see" your hand briefly. Why does this occur?

1) because elaborative rehearsal has transferred this image to your Long-Term Store/Memory, where it is stored indefinitely

2) because auditory images are held in Sensory Store/Memory for up to several seconds

3) because visual images are held in Sensory Store/Memory for up to about 1/4 second

4) because maintenance rehearsal keeps this image in your Short-Term Store/Memory indefinitely

Answers

Answer:

because visual images are held in sensory store/memory for up to 1/4 second

You can "see" your hand briefly because visual images are held in Sensory

Store/Memory for up to about 1/4 second.

When the sensory organ involving the eyes views an object briefly, the

information is usually passed to the brain which tells the type of object and

the action to take in response to the stimuli.

In this case, the visual image are usually held in the sensory

store/memory(brain) for few seconds which is why it is seen briefly even

after closing the eyes.

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Question 8 of 10
Which is true of Pluto?
A. Pluto orbits the sun every 2.5 Earth years.
B. Pluto's orbit is shorter than Saturn's.
C. Pluto has a moon that is about half its size.
D. Pluto is only larger than Mercury.

Answers

Answer:

c

Explanation:

What structure of an armadillo has inspired inventions by humans?


a.
The pointed beak of an armadillo which can protect it from predators


b.
The sharp claws of an armadillo which can help it catch prey


c.
The hard covering of the armadillo which can roll up into a ball


d.
None of the above

Answers

The armadillo is an animal. They are mostly described as the New World placenta animals. They have various peculiar characteristics including sharp claws which they use in digging and a hard protective covering.

The structure of an armadillo that has inspired inventions by humans is the hard protective covering of the armadillo which can roll up into a ball (option C).

The hard protective shell of the armadillo inspired humans to produce a hard protective material that was produced from glass shaped into hexagons to protect soft and fragile surface avoiding penetration like a bulletproof vest.

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A tapeworm attaches to the wall of its host’s intestine and starts to absorb the host’s nutrients. Eventually this can cause great harm to the host as the host loses many important nutrients.

Which type of infectious agent is a tapeworm?

a virus
a bacterium
a fungus
a parasite

Answers

Answer:

a parasite

Explanation:

this is because it survives within other organisms, known as the host.

Answer:

D) A Parasite

Explanation:

It said in the lesson: Parasite - an organism that lives on/in another organism and harms it

And this is what the tapeworm is doing.

Have A Great Day!!! :):):)

Define what is meant by specialised.

Answers

Answer:

Definitions of specialised. adjective. developed or designed for a special activity or function. synonyms: specialized specific. (sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique.

Explanation:

MARK ME AS A BRAINLIST PLZ

It means each (cell) is specialized for a particular function, for example nerve cells receive and transmit nerve impulses while white blood cells can change shape and do their own function, these were 2 examples there are way more.

why cellular respiration and photosynthesis are a
cycle?

Answers

Answer: Cellular respiration and photosynthesis are considered a cycle because the product (end material) of one reaction serves as the starting material for the other reaction. The starting material for cellular respiration is sugar and water and the products are carbon dioxide and water.

Explanation: hope it helped

1. How would you describe the movement of the sun over 30 minutes?

Answers

Answer:

The earth rotates from west to east. The sun does not move around the earth in 30 minutes. The sun is seen in a different part of the sky, but this is due to the rotation of the Earth. The intensity of light and heat changes as the Earth rotates.The speed of the sun changes the angle of the sky in 30 minutes, it is always moving from east to west, so in 30 minutes it will move further west, no matter what time you experiment.

Have an amazing day friend! :D

Fill in the blank with the correct term to complete the sentence provided. When the valve between the right atrium and right ventricle has an abnormal narrowing, this is known as
(Answer is NOT pulmonary valve or pulmonary stenosis)

Answers

Explanation:

if its correct please let me know

A narrowing of the valve between the lung arteries and the lower right heart chamber (right ventricle) is known as pulmonary valve stenosis (pulmonary arteries).

What is an abnormal narrowing in the heart?

The valve flaps (cusps) of a constricted heart valve may thicken or stiffen, as a result, the valve's blood flow is decreased.

When that valve narrows, blood cannot flow correctly and aortic stenosis develops, mild to severe cases of the illness are possible.

The left ventricle of your heart has to work harder over time to force blood past the stenotic aortic valve.

Therefore, an abnormal narrowing of the right atrium and right ventricle is due to pulmonary valve stenosis.

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In mitochondria cristae act as sites for what​

Answers

Answer:

Explanation:

The tubular or sheet-like cristae membranes are the main site of oxidative phosphorylation, harboring the complexes of the respiratory chain and the F1Fo-ATP synthase [5], [6], [7], [8], [9]. Fig. 1. Mitochondrial contact site and cristae organizing system (MICOS) in yeast.

What would be the complimentary strand for the DNA sequence
ATAACGA

Answers

I believe it is TATTGCT
TATTGCT is the answer

Summarize the features of a safe and sanitary composting facility. Explain the role played by each feature. (Not Multiple Choice, pls answer quickly!)

Answers

Given what we know about sanitary procedures, we can confirm that the features of a safe and sanitary composting facility lie in proper employee hygiene.

The most important part in limiting the pathogenic impact of compost is that of employee hygiene, which includes:

Thorough hand washing after handling compostKeeping the compost free of dust Keep any and all cuts covered at all timesThe employees must have proper vaccination protection before handling compost.

These are the features of a safe and sanitary composting facility and their role is to limit the effect and spread of pathogens that may result from the build-up of compost.

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HELP I NEED HELP WITH THIS question!!! PLZZZZ!
Question: What could happen if the human body dosen't take in or all of these's moleclues?

Answers

Answer: if the Human Body does not take in their necessary molecules such as protein, natural sugar, salt etc then it won’t be able to produce energy to stay woke much longer.

Explanation:

Why do you share similar traits with your parents?

Answers

Answer:

C- You inherited DNA from each parent

Explanation:

Answer:

you inherited DNA from your parents :D

[1 QUESTIONS Explains why zoonoses is considered essential in biomedical science and state its contribution to human and animal health?

Answers

Answer: zoonoses are the infections or diseases which can be transmitted between animals and humans

Explanation:

Grace wanted to find out the best conditions for growing lettuce plants.
She took 4 trays and planted 8 lettuce plants in each.
The results of her investigation are shown below.

How many days did the investigation last?
Use the table to help you.

Answers

Explanation:

the investigation lasts for 7 days.

hope this helps you.

Describe what an ecosystem is.

Answers

Answer:

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.

Explanation:

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.

what is Infective stage of Giardia ?

Answers

Answer:

when passed in the stool or shortly afterward

Explanation:know it all


The Moon's repeated pattern of movement and changes in appearance is known as the revolution .It is due to the Moon?

Answers

Answer:

No, the patterns are made by the light of the sun that reflects on the moon. The darker part of the moon is caused by the shadow of the earth.

(01.07 MC) worth 50 points
Fracking uses highly pressurized fluids, such as water mixed with sand and chemicals, to drive open cracks that exist in underground rock. Which statement
best describes an environmental consequence of this process for ecosystems?
O Wastewater is contaminated with oil and becomes sludge in landfills
O Water vapor is released into the air, which is considered a greenhouse gas,
Heavy metals are released into surrounding soil, poisoning local vegetation
O Billions of gallons of water are pulled from surrounding areas

Answers

The correct answer is that chemicals added to the liquid can contaminate groundwater.

Fracking is a method of drilling fossil energy resources, which requires a lot of water and consumes local water resources. It is pumped with high pressure water, sand and chemicals, causing high pressure to block the porous rock and release gas.  

The water spill itself destroys nature from the drilling site, and may even cause earthquakes, especially due to the pumping of abundant wastewater into porous rock types such as limestone. For example, Oklahoma appears to have become a special earthquake risk area. The biggest impact of water distortion is on groundwater. In Wyoming, USA, the same chemicals found in groundwater have been found in groundwater, and some of them are toxic or carcinogenic.  

Answer:

the answer is A

Explanation:

Fracking is a method of drilling fossil energy resources, which requires a lot of water and consumes local water resources. It is pumped with high pressure water, sand and chemicals, causing high pressure to block the porous rock and release gas.  

The water spill itself destroys nature from the drilling site, and may even cause earthquakes, especially due to the pumping of abundant wastewater into porous rock types such as limestone. For example, Oklahoma appears to have become a special earthquake risk area. The biggest impact of water distortion is on groundwater. In Wyoming, USA, the same chemicals found in groundwater have been found in groundwater, and some of them are toxic or carcinogenic.  

Scientists primarily use two different techniques to create multiple copies of a DNA sequence: cloning and polymerase chain reaction (PCR). Which of the following statements about these methods is true?

Cloning is more rapid than PCR at creating billions of copies of a DNA sequence.
PCR can be used to translate DNA into a protein, while cloning cannot.
PCR generates more copies of a DNA sequence in less time than cloning.
PCR is better at creating copies of large DNA samples than cloning.

Answers

Answer:

The answer to your question would be Option 3.

PCR generates more copies of a DNA sequence in less time than cloning.

Explanation:

PCR creates copies exponentially, creating many copies in a short amount of time.

Answer:

PCR generates more copies of a DNA sequence in less time than cloning.

Explanation:

I took the test.

can some one answer this questions please ​

Answers

B and c are the answer

When a plant is in hypertonic, what is happening to the plant cell and what will it look like?

Answers

Answer:

Explanation:

If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ).

most species alive today have yet to be identified True or false

Answers

Answer:

answer!!

Explanation:

False

How can increases travel boosted the spread of certain species

Answers

Answer:

a

Explanation:

ajiiiiiiiiiiiiiiiiiiiiiiiii

Global travel and spread of certain species
Explanation:
Many pathogenic species of bacteria, virus, and
other microbes are more prevalent in
developing or tropical countries rather than in
developed countries.
When an individual's immune system is weak
they become more susceptible to get infected
and become carriers of that particular species.
The species grows, develops, and multiplies in
the host's body and when the traveler travels to
his/her home country or any other place he/she
can transmit the disease to others and again the
species grows in numbers. Higher the rate of
spread of infection higher is the increase in
species.

I need help with dis plz?

Answers

The first answer would be correct


21. Which of the following is not a biologically important property of water?
A. Has a low heat of vaporization
B. Acts as an excellent solvent for polar and ionic substances,
2. Has a high specific heat,
D. Is less dense as a solid that as a liquid,

Answers

Answer: A because water has a high heat vaporization

might be wrong

Explanation:

What does the graph tell you about the concentration of salt inside the cell?

Answers

Answer:

So,

Assuming that the plasma membrane is either semipermeable or fully permeable, either diffusion or osmosis will even out the concentration eventually.  Therefore, options A and B are eliminated.

The only options left both say that osmosis will take place.  We know that osmosis will always move the solvent from an area of low solute concentration (outside the cell) to an area of high solute concentration (inside the cell).  Thus, water will move into the cell through osmosis.  That is option C.

If the cell cannot get rid of the water quickly enough, the cell will explode by cytolysis.

Explanation:

Cellulose is a polysaccharide (carbohydrate) and is a basic structural
component that makes up plant cell walls. Decomposers, such as bacteria and
fungi, produce cellulase to quickly break down cellulose. Cellulase is a(n)
hansport protein
Struttura Proton
Hormone
Enzyme

Answers

Answer:

Enzymes

Explanation:

A family of hydrolytic enzymes known as cellulases is responsible for the cellulolysis or hydrolysis of the polysaccharide cellulose, which results in the formation of monosaccharides such as glucose and shorter polysaccharides and oligosaccharides. Because of their numerous applications, these enzymes have a significant economic impact on the world.

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PLEASEEE THIS IS URGENT A NSWER ASAP!!!! What were the reactions of each group in the different regions in British North America to the idea of Confederation? (please list a verity of different groups in different regions) Is the system of equations consistent and independent,consistent and dependent, or inconsistent?y= -1/2x +3y= 4x + 2Select the correct answer from the drop-down menu.Choose ________________________ happen when pairs of bonded bases in a double strand of DNA get replaced with different pairs._________________________ happen when extra base pairs are included in an existing DNA sequence. _________________________ happen when base pairs in an existing DNA molecule get removed from it. Fill in the blanks correctly Study the following quote. Then answer the question that follows."No free man shall be seized or imprisoned, or stripped of his rights or possessions ... except by the lawful judgment of his peers."This quote from the Magna Carta encouraged American colonists to believe that people accused of crimes had certain rights unless found guilty through a legal process free people should be put in jail for their own safety if threatened by their neighbors anyone can be arrested, put in jail, and have his or her stuff taken away by peers only going to court can determine whether a person should get their property returned e. There was a lot of sugar in the container.Whats the error? PLSS HELP ASAP ILL GIVE BRAINLIEST PLS THANKS Does light travel faster than sound? pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee answer BRANLIEST FOR RIGHT ANSWERS! NEED ONES THAT ARE NOT ORANGE/FILLED IN Read the excerpt below and answer the question.It is rather for us to be here dedicated to the great task remaining before us that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion that we here highly resolve that these dead shall not have died in vain that this nation, under God, shall have a new birth of freedom and that government of the people, by the people, for the people, shall not perish from the earth.What is the example of antithesis in the Gettysburg Address excerpt above?death/this nationfreedom/governmentgreat task/increased devotiondeath/birth of freedom Find the length x. Round to the nearest tenth. A.) 3.4 B.) 9.4 C.) 3.6 D.) 6.6 help me please guys! for the most brain lol aidan runs every morning before he goes to work.on Sunday,he ran 0.54km, on Monday he ran 1.25km,on Tuesday he ran 1.50km, on Wednesday he ran 1.75km and on Thursday he ran 2.30km.His goal was to run10km in these five days.dis aidan meet his goal?how long did he run?estimate and find the solution. The Articles were written to govern a new country, the ______________________________________________. But the Articles were too __________________ to do that effectively. Where would an investigator mark a collected bullet with their own initials?A .on the sideB .on the basearound the bulletC .a bullet should never be markedD .a bullet should never be marked I really need help with my question! What did Via love the most about High School? he said I have been suffering from fever ( change into indirect) If x = 36 and y = 40 and x varies directly as y, then find x when y = 80. Her emotions were a storm cloud about ready to erupt. What type of figurative language is this?