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

the cell that is infected by a virus is called

Answers

Answer:

Via cytotoxic cells. When a virus infects a person (host), it invades the cells of its host in order to survive and replicate. Once inside, the cells of the immune system cannot 'see' the virus and therefore do not know that the host cell is infected.

Explanation:

Generalized global air circulation and precipitation patterns are caused by ________.
A. solar radiation that warms moist air masses near the equator, which then cool and release precipitation as they rise, and then, at high altitude, move north or south of the tropics and sink back to the surface as dry air masses
B. air masses that are dried and heated over continental areas, which then rise, cool aloft, and descend over oceanic areas, followed by a return flow of moist air from ocean to land, delivering high amounts of precipitation to coastal areas
C. polar, cool, moist, high-pressure air masses from the poles that move along the surface, releasing precipitation along the way to the equator, where they are heated and dried
D. solar radiation that warms dry air masses at the poles, causing them to sink toward the tropics, gain moisture, and then release it as precipitation.

Answers

Answer:

option B is the right answer

Generalized global air circulation and precipitation patterns are caused by air masses that are dried and heated over continental areas, which then rise, cool aloft, and descend over oceanic areas, followed by a return flow of moist air from ocean to land, delivering high amounts of precipitation to coastal areas. The correct option is B.

What is differential heating?

The reason we have different weather patterns, jet streams, deserts, and prevailing winds is due to global atmospheric circulation caused by the rotation of the Earth and the amount of heat received by different parts of the globe.

The earth's polar regions are both cold, owing to the fact that they receive far less solar radiation than the tropics and mid-latitudes.

Air masses that are dried and heated over continental areas cause generalized global air circulation and precipitation patterns.

This is then rise, cool aloft, as well as descend over oceanic areas, accompanied by a return flow of humid air from ocean to land, achieving higher amounts of precipitation to coastal areas.

Thus, the correct option is B.

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If you were born November 16, 1986 how old are you today

Answers

Answer:

2021-1986 = 35 years old

Explanation:

Answer
You say
2021-1986
The person is 35 years old

Hope this helps :)

The left cerebral hemisphere controls the muscles on the right side of the body and vice versa. Which pathway generalization best explains this phenomenon

Answers

Given our understanding of neuroanatomy, we can confirm that the left cerebral hemisphere controls the muscles on the right side of the body and vice versa due to the motor decussate of the cortical spinal pathway.

A decussate in regards to the nervous system is described as when the nerve fibers cross from one side of the central nervous system to the other. The decussate in question corresponds to the cortical spinal motor decussate.

The cortical spinal pathway is the nerve pathway that is in charge of muscular control and therefore is the pathway that is responsible for the phenomenon described in the question.

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why cellular respiration and photosynthesis are a
cycle.

Answers

Answer

Cellular respiration and photosynthesis are referred to as a cycle because the end product of one process serves as the starting material for the next reaction. During cellular respiration, sugar and water are the starting materials, and carbon dioxide and water are the byproducts. Water and carbon dioxide are the starting material for photosynthesis.

Explanation

A cycle is a series of steps that are repeated, which defines this! :)

There are no ____________ in the ____________ , located where the nerve fibers of the ____________ leave the eye and enter the ____________ . Consequently, this region of the retina is commonly called the ____________

Answers

There are no PHOTORECEPTORS in the OPTIC DISC located where the nerve fibers of the RETINA leave the eye and enter the OPTIC NERVE. This region is commonly called the BLIND SPOT.

The retina is an important layer of nervous tissue that covers the inside of the eye, in which the sensation of vision initiates.

Photoreceptors are specialized cells within the retina that respond to light stimuli. In the retina, there are two types of photoreceptor cells: cones and rods.

The blind spot is a small portion of the visual field of the eye that localizes in the optic disk within the retina.

There are no rods or cones (i.e. photoreceptor cells) within the optic disk.

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The process of mitosis ensures that each daughter cell has a copy of every chromosome present in the parent cell. What is the use of this process?

Answers

Answer:

option C is correct... the third one

What are the two most common types of secondary structure found in proteins?

1- α-helices and β-arrays
2- double stranded helices and β-arrays
3- α-helices and β-pleated sheets
4- β-spirals and α-turns

Answers

Answer:

1- α-helices and β-arrays

Which statement contains inaccurate information about stem cells?
Stem cells are undifferentiated.
Stem cells are specialized.
Stem cells can make more cells of the same type through cell division (potentially indefinitely).

Answers

Answer:

The incorrect statement is stem cells are specialized.

Explanation:

By their nature stems cells are unspecialized because they are undifferentiated. This means that they have not yet been assigned a specific role in the body.

How does respiration impact the amount of carbon in the atmosphere?

Answers

The process of respiration produces energy for organisms by combining glucose with oxygen from the air. During cellular respiration, glucose and oxygen are changed into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.

WHAT IS THE ROLES DOES THE CYTOSKELETON PLAY IN LIVING CELL

Answers

Answer:

.

Explanation:

The cytoskeleton is responsible for contraction, cell motility, movement of organelles and vesicles through the cytoplasm, cytokinesis, establishment of the intracellular organization of the cytoplasm, establishment of cell polarity, and many other functions that are essential for cellular homeostasis and survival.

It can display mobility to the cell.

In what type of organism is cell differentiation
necessary?
A. prokaryotes
B. kingdom archaebacteria
C. single-celled organisms
D. multi-cellular organisms

Answers

It’s D. multi-cellular organisms. Differentiated cells are important in a multicellular organism because they are able to preform a specialized function in the body.
The answer is D that’s what I got

I need help with dis one too plz!!!question 5

Answers

Explanation:

4) option D

5) option A

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ASAP Brainly, right here right now!
Examine the comparison between a eukaryotic cell and a prokaryotic cell. Which two lettered choices provide a comparison of structures that encode genetic information for the cells? A) A and D B) B and D C) C and D D) None of these choices, as prokaryotic cells do not contain DNA

I am almost certain it is A) a and d) but I need reassurance.

Answers

Answer: c & d

Explanation:

C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.

What are Prokaryotic and Eukaryotic cells?

Prokaryotic cells are single-celled microorganisms known to be the earliest on earth. Prokaryotes include Bacteria and Archaea. The photosynthetic prokaryotes include cyanobacteria that perform photosynthesis. A prokaryotic cell consists of a single membrane and therefore, all the reactions occur within the cytoplasm which can be free-living or parasites.

Eukaryotic cells are defined as having a nucleus enclosed within a nuclear membrane and form large and complex organelles. Protozoa, fungi, plants and animals all contain eukaryotic cells which are classified under the kingdom Eukaryota.

Thus, C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.

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4. What factors might affect bone strength?

Answers

Answer:

Bone strength is influenced by changes in the structure (size and shape) and composition [cortical (compact) bone, trabecular (sponge-like) bone, amount of cartilage] of the bone. 6 A high peak mass at a young age and the decrease of bone loss at a later age are two ways to reduce osteoporosis risk.

Explanation:

Answer:

Bone need enough Calcium

Explanation:

The amount of calcium in your diet. A diet low in calcium contributes to diminished bone density, early bone loss and an increased risk of fractures.

Physical activity. ...

Tobacco and alcohol use. ...

Sex. ...

Size. ...

Age. ...

Race and family history. ...

Hormone levels.

True or False: Because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny.

Answers

The statement 'because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny' is TRUE. It is natural selection in action.

According to the evolutionary theory proposed by Darwin, natural selection is the mechanism by which species change (evolve) to adapt to particular environmental conditions.

In this case, the microbiome represents an evolutionary adaptive mechanism, thereby natural selection will tend to favor individuals that have a beneficial microbiome.

In consequence, individuals having a beneficial microbiome will have more chances to reproduce and survive (i.e., they have higher adaptive fitness), thereby they also have more chances to pass this adaptive trait to the next generation.

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what is a phosphorelated nucleoside?

Answers

Answer:

Nucleosides can be phosphorylated by a displacement reaction between phosphate and an electrophilic carbon of a nucleoside. To render a carbon electrophilic, the hydroxyl group must be converted into a leaving group of some kind (e.g., a halogen or sulfonate ester)

Explanation:

The period of revolution of the earth is called a ?
Orbit
Day
Year
Month

Answers

Answer:

Explanation:

A year is defined as the time it takes a planet to complete one revolution of the Sun, for Earth this is just over 365 days. This is also known as the orbital period. Unsurprisingly the the length of each planet’s year correlates with its distance from the Sun as seen in the graph above.

Answer:

a year

Explanation:

The amount of time it takes for a single trip around the sun is called a period of revolution. The period for the Earth to revolve around the sun is 365.24 days or one year.

hope this helps :)

You are competing at a high school gymnastics meet. Your floor routine music begins
and you start running in a positive direction into a tumbling pass, starting from rest.
At 2s, your velocity is 4.5m/s. Calculate your acceleration.
Your Answer:
Answer
units

Answers

Answer:

2.25 m/s^2

Explanation:

Acceleration is the speed which you are increasing by per second. Therefore to find acceleration all you need to do is divide the change in velocity (4.5) by the time (2). Your units than become (m/s)/s or m/s^2.

I need help question 14

Answers

Answer:ok

Explanation:

so how many eyes do a dog and cat have

Answers

Answer:

i think its 2

dog have 2 eyes and cat also have 2 eyes

Psych-
Causal attribution theories generally try to explain how we:

1) are influenced by others

2) predict how others will behave based on their attitudes

3) change our attitudes toward other people

4) determine the causes of others' behavior

5) relate to and interact with other people

Answers

Causal attribution theories generally try to explain how we determine the causes of the others' behavior based on personal or situational attributions.

This theory was developed by Horald Kelly in 1967, and explains how people attribute the behavior of others according to dispositional (internal) and situational (external) factors.

Dispositional factors are those based on internal characteristics, such as effort and skill. Situational factors, on the other hand, are environmental and external to the individual, such as luck and task difficulty.

Therefore, according to theory we are more likely to attribute the cause of the behavior of others to factors that most coincide with the action.

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Which of the following is a biotic limiting factor? a. Fire b. Earthquake c. Hurricane d. Predators​

Answers

Predators

- BRAINLIEST answerer

1. In the digestive system, where are nutrients absorbed?

A: Small intestine

B: Large intestine

C: Or Liver



2. In the circulatory system, what type of vessels are able to exchange materials by passive transport?

A: Capillaries

B: Arteries

C: Veins



3. Which system controls all other organ systems?

A: Endocrine

B: Nervous

C: Respiratory


4. How does the integumentary system aid with homeostasis?

A: Controlling body temperature

B: Both A and B

C: Getting rid of excess salt through sweat


5. Which system is in charge of producing offspring?

A: Muscular

B: Urinary

C: Reproductive



6. Bones, cartilage and ligaments are all structures in what organ system?

A: Skeletal

B: Endocrine

C: Circulatory


7. Which of the following statements about the circulatory system is NOT true?

A: The liver is used to clean blood and remove any wastes and excess water/salts.

B: The endocrine system uses your blood to carry hormones around the body.

C: it delivers nutrients, gases and other materials throughout the body.




Answers

Answer:

1. Small intestine

2. A. Capillaries

3. B. Nervous system controls all other organ systems.

4. A. Controlling body temperature.

And hydration.

B. Producing sweat to regulate body temperature and get rid of waste.

5. C. Reproductive system.

6. Skeletal system

7. A

Explanation:

Complete the Punnett square

Answers

Answers:
1. BbEE
2. BbEe
3. BbEe
4. bbEe

Hope this helps!

1) BbEE

2) BbEe

3) BbEe

4) bbEe

    The Punnett square is a diagram used to predict the genotypes of a particular breeding / etc. For example, in the top left BE and BE becomes BBEE because you take both letters and put them together. Here, the Bs will go first and the Es. In the one to the right of that, Be and BE becomes BBEe as you put the Bs and Es in order, but you also have to make sure that lowercase bs go after uppercase bs, and etc.

Have a nice day!

    I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Argumento la importancia de la clasificación de los seres vivos

Answers

La importancia de la clasificación de los seres vivos es que así podemos estudiar más a los seres vivos y saber más sobre ellos.

what are some drawbacks to using mice in genetic studies?

Answers

Answer:

One drawback to using transgenic, knock-in, and knock-out mice to study human diseases is that many disorders occur late in life, and when genes are altered to model such diseases, the mutations can profoundly affect development and cause early death.

hope this helps

Explanation:

Genetically altered mice have served to recapitulate human diseases, including cancer, glaucoma, heart disease, and diabetes. However, despite their genetic similarity to humans, mouse models are criticized for their failure to accurately mimic human disease phenotypes.

Why it's bad to use mice as an experiment:

The use of mice as model organisms to study human biology is predicated on the genetic and physiological similarities between the species. Mice are less reliable as models of human disease, however, because the networks linking genes to disease are likely to differ between the two species.

Have a great day! :D

Another name for 23.5 degrees south latitude is?
a.) The prime meridian
b.) The equator
c.) Tropic of cancer
d.) tropic of capricorn

Answers

Answer:

D

Explanation:

Answer: D tropic of capricorn

Explanation:

I got that right in class. Please mark brainliest it means a lot and thanks! <3

What functions do carrier proteins perform In
active transport?

Answers

Answer:

Carrier proteins bound to the molecule, change shape, and transport the molecule through the cell membrane and onto the other side.

What term describes the total mass of trees, shrubs, herbaceous plants, and grasses present in a given forest on a given day

Answers

The term best describes the mass of the above-ground vegetation in a given forest would be the standing crop.

The standing crop of a forest specifically refers to the mass of all the living plant materials present in the forest at a particular time ranging from the biggest of trees, shrubs, herbs, to the tiniest of grasses.

Standing crop is as opposed to biomass in that the latter refers to the total mass of organic materials from the living and dead plants derivable from the forest.

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Other Questions
What events were happening in the United States at this time that had unintended consequences leading to Confederation in British North America? All the offspring of a cross between a black-eyed mendelian and an orange-eyed mendelian have black eyes. This means that the allele for black eyes is ________ the allele for orange eyes. "The great rule of conduct for us, in regard to foreign Nations is in extending our commercial relations to have with them as little political connection as possible. So far as we have already formed engagements let them be fulfilled, with perfect good faith. Here let us stop." Which of the following is the source of this statement on foreign policy?A) George Washington's Farewell AddressB) The Monroe DoctrineC) Abraham Lincoln's first inaugural addressD) The Federalist Papers HELPWhich element of a story is most clearly a motif?A. A bag of jewels that the characters try to stealB. A detailed description of a wheat field in fallC. A storm's arrival whenever there is conflictD. A detail that foreshadows what happens later please dont give a useless answer What is the topic of the essay? What is the purpose of the essay? Under the Articles of Confederation, the national government had the power toa. Taxb. Regulate tradeC. Dissolve the statesd. Borrow money and declare war Solving the quadratic equations using by completing the square. mangroves and coral reefs are examples of_____in the ocean zone The function c(h)= (20h)/(h^2+2) models the concentration of a medication in the bloodstream h hours after its injection into the muscle tissue.-Does the graph have a vertical asymptote? If so, give the equation of the vertical asymptote and explain why this would be a concern or not. If the function does not have a vertical asymptote, explain why.-Find the horizontal asymptote, what does it mean in the context of this problem?-Does the function cross the horizontal asymptote? Does it make sense in the relation to this problem?I have the answers, I just dont understand how to explain them in the context of the problem. How many days you need to workout to notice a difference? The cost of a trailer decreases in value by 25% What is the cost of the trailer if it was initially bought for $125 b $250 C. $375 d. $750 e x dollars Describe the physical properties of Copper (Cu) based on what you know about metals, nonmetals, and metalloids Twelve square tiles, each measuring 5 incheson a side, are laid side by side. What is the totalwidth of the tiles? which vessels absorb the solutes and water from the nephron? C is the midpoint of chord AB and D is the midpoint of arc AB.Given that AB=36 unit and CD=6 unit then What is the radius of circle? Which president of Texas opposed annexation A: HoustonB: JonesC: Austin D: Lamar (2x-3)(-2x^2-5x-8)(2x3)(2x 2 5x8) Describe black coffee in detail True or false: Although the Hispanic population is the fastest growing U.S. minority group, Spanish-language newspapers in the United States have grown very little over the past 20 years.