n the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlappying of actin and ____________ .

Answers

Answer 1

Answer:

In the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlappying of actin and myosin.

Explanation:

Sliding filament theory explains the way muscles contract; each sarcomere (functional unit of muscle) contains superimposed thin (actin) and thick (myosin) filaments that are interconnected by cross bridges. According to the theory, the shortening of the length of a sarcomere is produced by the two types of filaments that slide over each other; large intermolecular forces between the myosin head and the crossed bridge cause the head to tilt. Through this power glide, the fine filaments are drawn between the thick filaments of each sarcomere. The contraction is triggered by a stimulating nerve impulse that causes an action potential to spread through the sarcomere.


Related Questions

Why do oxygen levels drop sharply during eutrophication?

Answers

Explanation:

during eutrophication, there is a presence of excess algae in the water body. this causes an excess overconsumption of available organic materials by algae, causing the oxygen levels to reduce rapidly.

When the algae population grows rapidly, it may hinder sunlight from reaching other lifeforms and cause dissolved oxygen levels to fall.

What is eutrophication?

Eutrophication is the substantial increase in phosphorus, nitrogen, and other organic material in an ageing aquatic environment such as a lake.

As the amount of organic material that can be subdivided into nutrients increases, so does the efficiency or fertility of such an ecosystem.

When the algae population grows rapidly, it may prevent sunshine from reaching other organisms and cause dissolved oxygen levels to fall.

The primary environmental impacts of eutrophication are an increase in suspended particles caused by extensive macroalgal blooms, a decrease in water clarity, and an increase in precipitation rate, which has resulted in the destruction of benthic habitat due to shading of submerged vegetation.

Thus, this way, oxygen levels drop sharply during eutrophication.

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What do you mean by hypometrophia?​

Answers

Answer:

Hypermetropia is also referred to as hyperopia or long-sightedness or far-sightedness. Hypermetropia is the condition of the eyes where the image of a nearby object is formed behind the retina. Here, the light is focused behind the retina instead of focusing on the retina

Complete these three sentences using the same pair of words each time . Ice is made up of_______ ______ Water is made up of ______ _____ Water vapour is made up of _____ ___

Answers

Answer:

Hydrogen & Oxygen

Explanation:

How can evidence from an experiment be explained in relationship to the hypothesis?
• as a prediction
• as a question
• as an inference
• as a conclusion

Answers

Answer:

As a conclusion

Explanation:

A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.  A hypothesis is a prediction based on the theory being tested. The evidence can support the Hypothesis or invalidate the Hypothesis.

Answer:

A conclusion

Explanation:

It sums up everything that you did

(h) Which one of the following favours the fastest transpiration rate ? (i) A cool, humid, windy day (ii) A hot, humid, windy day (iii) A hot, humid, still day (iv) A hot, dry, windy day​

Answers

Answer:

Hot temperature, dry and windy environment causes fastest transpiration rate.

option IV

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Question
Use the text to identify the sentences with evidence that matches the claim.

Claim 1 --> Tropical rainforests contain more biodiversity than all other biomes.

1) Biodiversity refers to the total number of different species of all kinds living in an area.

2) Tropical rainforests have many of the climate characteristics that organisms of different species need to grow, such as warm temperatures, plenty of rain, and many food sources.

3) There are large amounts of daily sunlight, which provides a great deal of energy to a variety of rainforest organisms.

4) Surprisingly, rain forest soil is very poor.

5) Due to the large amounts of rainfall, nutrients are leached out of the soil quickly.

6) Warm temperatures cause dead organisms to decay quickly, and the nutrients are then used by many different plants.


1, 2, 5
1, 2, 5

1, 3, 4
1, 3, 4

2, 3, 6
2, 3, 6

1, 4, 5

Answers

Answer:

44

Explanation:

44-7=55

No.3 plzz ...?
Any one ​

Answers

2^n=32

n=5

It doesn't really match up with the options so not sure, my best guess would be either choosing 16 or 4. 16 in case the person calculated as 16 times 2 = 32 and 4 bc its the closest.

Which of the following statements about active transport is true?

Molecules move down the concentration gradient.

ATP is not required to move molecules through the membrane.

ATP is formed as molecules pass through protein channels.

It results in a higher concentration of molecules on one side of the membrane.

Answers

Answer:

It results in a higher concentration of molecules on one side of the membrane.

Explanation:

Active transport is the transport of molecules up the concentration gradient. This means that molecules are going from low density to high density. This is the opposite of natural diffusion. So, it requires ATP to move the molecules this way. Diffusion normally occurs to maintain homeostasis and an equal amount of concentration on both sides of a membrane. But, with active transport, since molecules are moving up the gradient, the opposite happens and the concentrations are unequal.

ASAP
When you become too cold, your hypothalamus will signal what parts of your body to raise the temperature?
A. Muscles and kidneys
B. Skin and pancreas
C. Muscles and skin
D. Kidneys and lungs

Answers

Answer:

c

Explanation:

Muscles and kidneys or muscles and skin

When many nucleotides link together, they form a biomolecule responsible for storing genetic information called a
Group of answer choices

protein.

nucleic acid.

retinal.

carbohydrate.

Answers

Nucleic acid, just know nucleic acid is made up of nucleotides

When many nucleotides link together, they form a biomolecule responsible for storing genetic information called nucleic acids. Thus, the correct option is B.

What are Nucleotides?

Nucleotides may be defined as the basic unit of the polynucleotide chain of nucleic acids such as DNA or RNA. Each nucleotide is composed of three components. They are as follows:

A nitrogenous base.A pentose sugar (ribose in the case of RNA, and deoxyribose in the case of DNA).A phosphate group.

Nucleotides are the monomers of nucleic acids. Each nucleotide is joined together by covalent bonds known as phosphodiester linkage. This linkage is present between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar of next nucleotide.

Therefore, nucleic acids are formed when many nucleotides link together which are responsible for storing the genetic information.

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any 2 characteristics of columnar epithelium​

Answers

Polarity- Epithelium is arranged so there is one free surface (apical surface) and one attached surface (basal surface)

Cellular nature– Cells in epithelium fit closely together side by side and sometimes atop each other to form sheets of cells.

Which molecules in your body do
not contain carbon atoms?
Genes, which are made of DNA
Proteins
Sugars
Water

Answers

I'm pretty sure its water

Isabel's first car had a manual stick shift. After many years of driving an automatic car, she needs to use her sister's car, which also has a stick
shift. Isabel takes a few minutes to get used to shifting gears. Which memory system Is she using to recall this information?
• A. episodic memory
O B. procedural memory
• C.
semantic memory
)D.
sensory memory

Answers

Answer:

Procedural memory

Explanation:

Isabel has to recall the information about using a manual stick shift. For this reason, she is using long-term, explicit, declarative and episodic memory system.

Human memory system can be broadly classified as: sensory memory, short-term memory and long-term memory.

Long-term memory is used to recall information. If the information are about facts, events and experiences then explicit, declarative and episodic memory helps to recall all information. This will help Isabel to recall all information about driving a car with a manual stick shift and she will be able to drive her sister's car.

(Answer taken from https://brainly.com/question/11839849)

Which would make for a weak claim?
• a blog cited as the source
• a large sample size
• clear variables and controls
• multiple trials

Answers

Answer:

A

Explanation:

Blogs can have a lot of misinformation

ASAP Determine whether the statement is true or false and why. “We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to a different period in time becoming more human-like the closer to the present they are, showing a clear evolution into humans.”
A. False, it should read “We have discovered no series of humanoid fossils that are similar to humans, showing a clear lack of any transitional fossils as evidence of human evolution”
B. True
C. False, it should read “We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to a different period in time becoming less human-like the closer to the present they are, showing a clear evolution away from humans.”
D. False, it should read “We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to the same period in time, showing that many human-like species existed at once, but all went extinct.”

Answers

The statement is true.

Human evolution is a scientific term that refers to the process of biological evolution of the human species from its ancestors to the present.

The current knowledge of human evolution is the result of the convergence of various sciences such as:

Genetics.Physical anthropology.Paleontology.Geochronology.Archeology.Linguistics.

The results of various studies relate the current human species as a result of multiple evolutionary processes of hominimus species, ardipithecus, australopithecus, and homo that through time improved different aspects until reaching the human species that exists today.

According to the above, what is described in the fragment presented is true because it presents a correct version of what happened in human evolution. Meanwhile, options A, C and D are incorrect because they do not present correct information regarding human evolution.

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ASAP
The cell cycle occurs in which order?
A. G1, S, G2, Cytokinesis, Mitosis
B. G1, S, G2, Mitosis, Cytokinesis
C. S, G1, Mitosis, G2, Cytokinesis
D. S, G1, G2, Mitosis, Cytokinesis

Answers

Answer:

B. G1, S, G2, Mitosis, Cytokinesis

Explanation:

G1 is the first stage of the cell cycle, and it is essential for cell growth.

Next, the S (Synthesis) phase occurs. This phase involves DNA synthesis to prepare the cell for division.

G2 is the next phase, and it involves preparing and growing the cell for mitosis.

Mitosis is the next stage, where the cell divides into 2.

Lastly, Cytokinesis occurs after mitosis, and it creates the two daughter cells.

So, the correct answer is B. G1, S, G2, Mitosis, Cytokinesis

Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partners to be willing to mate. Such a ritual constitutes a ________ ________ reproductive barrier. Group of answer choices

Answers

Complete question:

Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partners to be willing to mate. Such a ritual constitutes a ________ ________ reproductive barrier.

Group of answer choices

A) behavioral . . . prezygotic

B) mechanical . . . postzygotic

C) temporal . . . prezygotic

D) gametic . . . postzygotic

Answer:

A) behavioral . . . prezygotic

Explanation:

The biological concept of species states that individuals of a species can not mate and reproduce with individuals of another species. But if they get to reproduce, the progeny will not be viable or fertile. There will not be any reproductive success.

There are different reproductive isolation mechanisms, which are barriers that inhibit or interrupt the genetic flow between different species.

Reproductive barriers are isolation mechanisms that prevent mating between two or more species. The prezygotic mechanism avoids fertilization between individuals of different species, while the postzygotic mechanism impedes the zygote to develop and reach the adult stage.

There are different types of reproductive barriers.

Pre-copulatory o pre-ziygotic:

Ecological or by habitat isolation; Seasonal or temporal; Sexual o ethologic; Mechanic; Gametes incompatibility.  

Postzygotic mechanisms or barriers include

Hybrid inviability,   Hybrid sterility, Hybrid reduced viability or fertility, Cytoplasmic interactions.

Behavioral isolation is also known as ethological isolation or sexual isolation. This is a prezygotic barrier that refers to the fact that even when many species occupy the same area, they are not sexually attracted to each other, and might be rejected because of behavioral factors, not getting to mate. This mechanism includes courtship patterns or mating rituals and specific chemical signals that allow recognition between individuals of the same species.

perfect 2 minute speech on deforstation

Answers

Answer:

A warm welcome to all present here. Today I am going to give a speech on deforestation. Deforestation is the process of cutting down the forest, without replanting them again. The causes for deforestation are to obtain wood and fuel or to use the land for farming, mining or construction. From the time of civilization till now, forest wood is very essential for humans in our day to day life.

Explanation:

U can add more if u like it!

what is tissue A called? ​

Answers

Answer:

Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. ... There are four main tissue types in the body: epithelial, connective, muscle, and nervous

Can bacteria break down plastics?
Give reason

Answers

Answer:

Yes, bacteria can break down plastics because they break down the molecules of the plastics into their original building blocks and by secreting an enzyme which “eats” the chemical bonds in the chain, the molecules are broken down into their smaller components.

What energy using-process helps to cool the body

Answers

Answer:

Convection

Explanation:

convection is the process of losing heat through the movement of air or water molecules

Which of the six kingdoms are ONLY multi-cellular? *

Answers

Answer:Plantae and Animalia

Explanation:

Plantae and animalia

which statement correctly pairs the organelle with its function

Answers

Answer:

smooth endoplasmic, metabolism, lipids

Explanation:

these are the answers hope this helps you out.

An ecosystem experiences a loss of denitrifying prokaryotes. Will this loss affect the health of the ecosystem?

Answers

yes it will, it will ruin the food chain

If the results of an experiment are considered valid they will? A. Give the same nontestable results B. Give The same outcome when repeated C. Give different outcomes in different parts of the world D. give different results from repeated by different scientist

Answers

Answer:B

Explanation:

If it's valid, then it has substantial evidence to back up the results, which will  be the same over and over again.

Which of the following is the primary method of controlling citrus canker?


quarantine and destruction of infected plants

treatment with fungicides

genetic modification of plant stock

treatment with herbicides

Answers

Answer:

genetic modification of plant stock

What is one way private citizens can help conserve natural resources?



Answers

Answer:

By reducing their use of energy, water, and waste services

Which of the following best defines gene flow?

the sum of all genetic traits in a population's individuals at a given time any movement of genes from one population to another any movement of organisms from one environment to another the random change in the frequency of an allele in a population​

Answers

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Gene flow — also called migration — is any movement of individuals, and/or the genetic material they carry, from one population to another. Gene flow includes lots of different kinds of events, such as pollen being blown to a new destination or people moving to new cities or countries.

Answer:   any movement of genes from one population to another.

Explanation: :)

The negative effect humans have on the stability of the environment is mostly directly linked to an increase in

Answers

Explanation:

Machinery as an energy unit for agricultural work produces a negative impact on the environment on soils, waters and the atmosphere. ... In the exploitation process it exerts impacts such as: soil degradation, water pollution and pollution of the atmosphere.

How does Earth's internal structure contribute to its magnetic field?
A. The inner core is a permanent magnet made of iron, and the liquid
iron in the outer core aligns with that magnet's magnetic field.
B. Convection currents in the core generate a magnetic field, which is
strengthened by convection currents in the mantle.
C. The crust becomes magnetic because of radiation from the sun,
and the resulting magnetic field makes all of Earth's layers
magnetic
O D. Convection currents in liquid iron in the outer core generate an
electric current, which produces a magnetic field.

Answers

i think answer D( convection currents in liquid iron in the outer core generate an electric current , which produces a magnetic field)

D
I think its the best answer
Hope its help
Other Questions
Solve this question: Do you think that an abusive person can change ? How ? A plant does not grow when its apical meristem is cut. justify the statement hi, define chemistry and mention the three branches of chemistry answer it fast .Good night 3x - 28= 80What is the value of x?Cual es el valor de x? The marketing firm encouraged all of its staff members to display active _____ in charity events 1 im A. participate B. participation C. participant D. participatory Match each sentence with the word that completes it correctly. Match Term Definition Mrs. Tremont has several ______ who love her science class. A) students' Several of her _____ projects won ribbons at the science fair. B) student's One _____ invention was awarded the first place trophy. C) students Points earned on this question: 5 1. A football goal post casts a shadow 120 inches long. You are 5 feet 6 inches tall and cast a shadow 16.5 inches long. Find the height of the goal post in feet. Round your answer to the nearest whole number. Simplify the given expression below:(1 + 3) + (2 - 5i) WILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER!!!Find the total surface area.A. 731 cmB. 770 cmC. 649 cmD. 900 cm Select the correct answer from the drop-down menu.The was too old to play roughly with the__________ to old to enjoy running around the neighborhood.kids, it was notkids; it was not read the following passage from resistance to civil government by Henry David Thoreau: Yet this government never of itself furthered any enterprise, but by the alacrity with which it got out of its way. it does not keep the country free. it does not settle the west. it does not educate. the character inherent in the american people has done all that has been accomplished; and it would have done somewhat more, if the government had not sometimes got in its way. how does Thoreau use a parallelism in this passage? a. to emphasize the words but by the alacrity with which it got out of its wayb. to draw attention to what the american people do that the government doesnt c. to add the surprising revelation that the government gets in the way of progress d. to compare the government to an obstacle, such as a tall mountain or river calculate the number of atoms in 1g of calciumj Chn v tr chnh xc cho cc t trong ngoc 1.... 2. .. .. 3. ABCD. 4. A B C D 5. A BC D 6. A B C D 7. A B C D Cules son los rasgos sobresalientes de los gneros literarios (teatro, poesa, cuento, ensayo y oratoria)? what is passive voice What is the discriminat of 2x+5x^=1 If there are 3 people splitting a paycheck of 89 how much would each have to pay How much bigger is the Sum of first 50 even numbers than the sum of first 50 odd numbers? Read the excerpt from act 3, scene 2, of The Tragedy of Julius Caesar and the information in the paragraph below it.Excerpt:ANTONY. Friends, Romans, countrymen, lend me your ears.I come to bury Caesar, not to praise him.The evil that men do lives after them;The good is oft interrd with their bones.So let it be with Caesar.Background information:"The Evil That Men Do is the title of a song by the English heavy metal band Iron Maiden. The lyrics of the chorus say that peoples evil deeds live on.Iron Maidens reference to the line from Shakespeares play is an example ofcultural allusion.literary allusion.historical allusion.religious allusion.