what happens to the i band when the sarcomere contracts

Answers

Answer 1

Answer:

The A band stays the same width and, at full contraction, the thin filaments overlap. ... The I band contains only thin filaments and also shortens. The A band does not shorten—it remains the same length—but A bands of different sarcomeres move closer together during contraction, eventually disappearing.


Related Questions

what do we call the abusive behaviour between peers​

Answers

Answer:

abusive behaviour can be classified in all sorts of relations but when inbetween peers most abusive relationships tend to be of bullying, competition or emotional.

Which example is an internal stimulus? help plz​

Answers

For example one of the internal stimuli is hunger which is the sign of low energy in the body. It stimulates us to eat something to regain the needed energy. Blood Pressure: Blood pressure is an internal stimulus of mammals that is measured by receptors in arteries.

Answer:

Thirst, Anyone who has ate contaminated food are examples.

Explanation:

Internal stimulus is the change That happens inside the body.An example of an internal stimulus for a Lion is hunger.

PLZ HELPPPP WILL PICH BRAINLIEST




Which of the following is not a reason the nitrogen cycle is important?

Nitrogen gas gets converted to nitrates for plants to use

Nitrogen is needed to synthesize proteins

Nitrogen provides energy for organisms

Nitrogen is needed to synthesize DNA

Answers

Nitrogen gas gets converted to nitrates for plants to use

Hope this helped you- have a good day bro cya)

True or False?A group of organs that work together to perform big jobs for your body is an organ system.

Answers

Answer:

True :)

Explanation:

an organ system is consisted of a group of organs that work together to carry out a complex function.

What is the difference in the structure of the cell walls of gram-positive and grarn-negative
bacteria?

Answers

Answer:

The major difference between Gram-positive and Gram-negative peptidoglycan involves the thickness of the layers surrounding the plasma membrane. Whereas Gram-negative peptidoglycan is only a few nanometers thick, representing one to a few layers, Gram-positive peptidoglycan is 30–100 nm thick and contains many layers.

Explanation:

Which of the four factors that affect evolution apply to the finches that the Grants studied? Use evidence from your research to support your answer.

Answers

Answer:

The four factors that affect evolution are mutations, natural selection, genetic drift and the gene flow, In the case, if the ground finches that Grants studied, we can observe the working of the natural selection. Due to change in the conditions in the environment, the large beak was an advantageous trait that was favored by the natural selection. The result of this process was an increase in numbers of large beaked finches and decrease in small-beaked finches compared to the initial numbers in the population.

Explanation:

Factors that affect evolution.

As per the question the evolution is a gradual process that includes the changes in the body of the organisms thereby making them more stronger and dynamic than others. The 4 features that affect evolution are mutations, natural selection, genetic drift, and gene flow.

The answer is thus are a major factor that leads to evolution in specie.

As per the case, Grants studied his works of natural selection. As per the changes associated with the environment, the large beak was an advantageous trait that was favored by natural selection. This leads to the increase in the size of the finches and the decline of other properties. Such a beak size, color, and even behavior. Hence the four-factor to consider are genetic drift, natural selection, adaptation and mutation (evolution).

Learn more about the four factors.

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An arrangement of all the chromosomes of a diploid cell is called a(n)

Answers

Answer:

An arrangement of all the chromosomes of a diploid cell is called a kayrotype

An arrangement of all the chromosomes of a diploid cell is called a karyotype is the overall look of all the chromosomes in a species or an individual organism's cells.

What is the karyotype?

A karyotype is a eukaryotic cell's nucleus' number and arrangement of chromosomes. The phrase is also used to refer to a species or an individual organism's entire set of chromosomes.

Each diploid cell in humans contains 46 chromosomes. There are 22 pairs of autosomal, or non-sex, chromosomes and two chromosomes that determine sex among them. A diploid cell has 2n total chromosomes, which is twice as many as a haploid cell's total chromosomes (n).

Therefore, a karyotype is the overall look of all the chromosomes in a species or an individual organism's cells, primarily their sizes, numbers, and shapes.

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An example of a communicable disease is
A - cancer.
B - chronic respiratory disease.
C- diabetes.
D -giardiasis.

Answers

Answer:

D giardiasis is the correct answer :)

An example of a communicable disease is giardiasis, which is in option D. Giardiasis is an example of a communicable disease. It is caused by a microscopic parasite called Giardia lamblia.

This disease affects the digestive system, causing symptoms such as diarrhea, abdominal cramps, bloating, and nausea. It is typically transmitted through the ingestion of contaminated food or water that has been contaminated with the parasite. Chronic respiratory disease includes conditions such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis, which are usually caused by long-term exposure to irritants or genetics and are not directly communicable.

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The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.

Answers

Protein is amino acids

can someone please draw a flow chart of the Big Bang theory (not show) the scientific one (:

Answers

Answer:

Ur welcome ;) (Even tho I uploaded it from the web lol)

Explanation:

Which statement accurately describes the bond that forms between carbon and oxygen to create carbon dioxide

Answers

Answer:

It's a non-polar covalent bond.

Explanation:

Non-polar means they do not interact with water. Carbon dioxide and Oxygen bonded together by sharing electrons equally.

bacterial transformations involve the transfer of what?

Answers

Answer:

DNA

Explanation:

Bacterial Transformation was discovered as a natural phenomenon 1928 by Griffith et al. Later in 1944 scientists actually identified the transforming principle as DNA. It is a process of horizontal gene transfer in bacteria. It involves transfer of DNA fragment to a live bacteria through intact cell boundary.

Answer:

DNA

Explanation:

transfer of DNA fragment to a live bacteria through intact cell boundary.

Please fill in!!

a. ATP
b. Light energy
C. C02
d. 02
e. Carbohydrate
f. Water

Would greatly appreciate if you answered like this:
18: ATP
19: etc..

Answers

18. b

19. c

20. f

21. e

22. d

23. c

24. f

25. a

how does chromatid cohesion as maintained by cohesin proteins differ in mitosis and meiosis?

Answers

It’s kinda a difference

the ________ is shared by the respiratory and digestive systems.

Answers

Answer:

oropharynx

Explanation:

the oropharnyx is shared by the respiratory and digestive systems.

as the change in membrane potential in propagated down a t-tubule, which event does it stimulate to occur?

Answers

Answer:

Hru friend have a good day

Explanation:

ilu friend

1. A rapidly increasing human population is the primary driver behind what
LEADING cause of the loss of biodiversity? (SEV5.a) *
O a. Extinction
O b. Habitat Loss
O c. Pollution
O d. Overexploitation

Answers

Answer:

your answer is B. Habitat Loss

Explanation:

What is the #1 cause for the loss of biodiversity?

Habitat destruction

Habitat destruction is a major cause of biodiversity loss. Habitat loss is caused by deforestation, overpopulation, pollution, and global warming. Species that are physically large and those living in forests or oceans are more affected by habitat reduction.

Habitat loss and overexploitation, driven by our rapid population growth and unsustainable consumption patterns, are the primary causes of biodiversity loss which is now happening up to ten thousand times faster than for millions of years before.

Compare and contrast the immune system and nervous systems

Answers

similarities:

The immune system and the nervous system maintain extensive communication, including 'hardwiring' of sympathetic and parasympathetic nerves to lymphoid organs. Neurotransmitters such as acetylcholine, norepinephrine, vasoactive intestinal peptide, substance P and histamine modulate immune activity.

which trophic level is most vulnerable to extinction?

Answers

Answer:

predators since they depend on other animals

Explanation:

which structures of the cytoskeleton are found in animal cells

Answers

Answer:

Microfilaments, microtubules and intermediate filaments make up the cytoskeleton of animal cells. They are all made up of smaller protein units and can serve a variety of functions for the cell. From transportation to cell movement to support and structure, the cytoskeleton is an invaluable part of the animal cell.

Explanation:

What is molecular gastronomy? (Explain in your own words:))

Answers

Answer:

molecular gastronomy, the scientific discipline concerned with the physical and chemical transformations that occur during cooking. The name is sometimes mistakenly given to the application of scientific knowledge to the creation of new dishes and culinary techniques.

An amoeba that lives in salt water does not have a contractile vacuole to do so.
Explain observations.

Answers

Answer:

what do we call a mutation that involves one or just a few nucleotides

The importance of PATTERNS (base order) over the two steps of protein synthesis:
TRANSCRIPTION: The sequence ( specific order) of bases in _________determines the sequence (specific order) in the _______.
TRANSLATION: The sequence (specific order) of the bases in the ________ determines the sequence of the _________that make-up the _________.

Answers

Answer:

fdfdfdfdfdfdfdfdfdfdffd

5. Blueshift is observed when
1 point
O a luminous object travels alongside an observer
O a distant luminous object travels rapidly towards an observer
O a distant luminous object travels rapidly away from an observer
O a luminous object is stationary compared to an observer
Pls help I will give 21 points if it is correct

Answers

Answer:

(b) a distant luminous object travels rapidly towards an observer.

Explanation:

Blueshift is observed when a distant luminous object travels rapidly towards an observer. The correct option is B.

What is blueshift?

The displacement of an approaching celestial body's spectrum toward shorter wavelengths is known as blueshift.

When an object moves away from us, the light it emits is known as redshift; when an object moves towards us, the light it emits is known as blueshift.

The blue and red shift of stars cannot be seen with the bare eye. There are several reasons for this.

First, even for an object moving at thousands of kilometers per hour, the effect is minor, with only a slight change in hue.

Red light, with both the longest wavelength, is at one end of the spectrum.

The shortest wavelength is blue or violet light. White light is a blend of all the colors in the color spectrum. It has every color of the rainbow.

Thus, the correct option is B.

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what is the main artery that carries blood to your lungs

Answers

Answer:

Pulmonary arteries

Explanation:

Hope this helps.

Can someone please help me and not just answer for points

Answers

Answer:

option c is the answer met-his-stop

In order for a light bulb to be turned on in a circuit, it must have what kind of switch?

Answers

Answer:

It must have a closed switch.

Explanation:

The current cannot flow through the full circuit if the switch is open, therfore the light won't switch on. However, if the switch is closed, the current can run through the circuit and the light bulb will switch on.

Enzymes can help make bigger molecules oflr break them down by making or breaking ________.​

Answers

Answer:

active site im not sure if it's right

Compare the functions of the male and female reproductive systems.

Answers

Explanation:

The main difference between male and female reproductive system is that male reproductive system produces and delivers sperms to the female reproductive system whereas female reproductive system facilitates fertilization and develops the baby.

state three items that are absorbed by the plant system ?
where do materials pass in the cell
outline three process absorption help to improve

give a real life scenario of how diffusion occur
what type of molecules do we deal with in osmosis ​

Answers

water, sunlight, oxygen.
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