the muscle cell’s contracting unit is known as the

Answers

Answer 1

Answer: The sarcomere is the functional unit of the muscle fiber. The sarcomere itself is bundled within the myofibril that runs the entire length of the muscle fiber and attaches to the sarcolemma at its end. As myofibrils contract, the entire muscle cell contracts.

Explanation:


Related Questions



Read the statements below. Select the events that are triumphs of science.

Answers

Science is known to have made regular people decide to work hard and dedicate themselves to solving a problem. The events that are triumphs of science are;

Regulating the cell cycle to fight cancer. Producing children with higher intelligence. Development of vaccines against disease. Transforming bacteria to produce biofuels. Genetically modifying crops to resist pests.

There have been the footprint of Science behind making Children smarter in music, chess, computer etc.

There are now cheaper and cleaner biofuels that is produced through genetic engineering to alter how some organisms process sugar.

Cell cycle checkpoints are very important to halt cell cycle increase in response to DNA damage, making time therefore for DNA repair.

See full question below

Read the statements below. Select the events that are triumphs of science. Regulating the cell cycle to fight cancer.

Producing children with higher intelligence. Development of vaccines against disease. Transforming bacteria to produce biofuels. Genetically modifying crops to resist pests. Understanding how molecules affect metabolism to fight obesity

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A plant which loses its leaves in winter is known as which of the following?
O Biennial
O Bulb
O Evergreen
O Deciduous

Answers

Answer:

Deciduous

Explanation:

fertilization in humans usually takes place in the

Answers

Answer: here you go

Explanation:

Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.

HELP HELP ME ME

All of the following can result in muscle fatigue except

C. excess Ca++

B. Excess K+ ions

D. hyperpolarization

A. build up of lactic acid

Answers

Answer:

D. Hyperpolarization

Hope it helped

D will be your answer

.
How does the skeleton function to store minerals?

Answers

Answer:

calcium and phosphorous,

Explanation:

which can given up if the body requires the minerals for others functions

Suggest why the temperature of baby food must be controlled when the enzymes are added

Answers

Answer:

temperature plays an important role in biology as a way to regulate reactions.

Enzyme activity increases as temperature increases, and in turn increases the rate of the reaction. This also means activity decreases at colder temperatures.

Science:Imagine that only half of the water vapor that the air can hold is actually in the air.

What is the relative humidity?


25%

50%

75%

100%

Answers

I think it D.100% because the air has reached its limit

which activities of the body are controlled by the autonomic nervous system?

Answers

The autonomic nervous system controls internal body processes such as the following:

Blood pressure.

Heart and breathing rates.

Body temperature.

Digestion.

Metabolism (thus affecting body weight)

The balance of water. ...

The production of body fluids (saliva, sweat, and tears)

Urination.

Select the correct answer.
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) are found on islands that have high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. What explains the type of turtle found on the islands with high vegetation?

A.
The environment triggered a gene mutation in neck length in order to help the turtle survive.
B.
Mutations are random, so it is by chance that turtles with longer necks live on these islands.
C.
Turtles with genes for long necks had a better chance of surviving to reach reproductive age.
D.
Turtles with short necks completely lacked adaptations for finding food, so they died off.

Answers

Answer:

c

Explanation:

not sure

serotonin and norepinephrine levels in the the brain are altered by drugs like prozac and zoloft. these are known as

Answers

Serotonin aids in mood regulation including all other functions. While norepinephrine helps stimulate the brain and increase energy and awareness.

Their levels in the brain are altered by drugs like prozac and zoloft and they are known as antidepressants.

Antidepressants like prozac and zoloft are known to be effective in treating some disorders including mood disorders and bipolar disorders.

They are able to do this through the regulation of the amount of these neurotransmitters (serotonin and norepinephrine) in the brain.

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Which large muscle is known as the "swimmer's muscle" because it pulls the arm downward and backward while rotating medially?

Answers

Answer:

c. Latissimus dorsi

Explanation: is correct

Drag the correct reactants and products to each box to complete the equations.

Photosynthesis

GO2

Oxygen

1

db

Respiration

H20

G6H1206

ATP

Les Demy

H20

Oxygen

1

GO2

Energy

1:

GHOS

Answers

Answer:

Photosynthesis = Carbon Dioxide + Water -> Oxygen + Glucose

6CO2 + 6H2O -> 6O2 + C6H12O6

Respiration = Glucose + Oxygen -> Water + Carbon Dioxide

C6H12O6 + 6O2 -> 6H2O + 6CO2


Need help please

why might a person observing a conifer have difficulty identifying the gametophyte state

Answers

Answer:

Conifers produce seeds, they do not rely on water to unite the sperm and the egg.

Explanation:

what process is shown below?

Answers

its A facilitated diffusion

Clayey soil is useful for growing plants because------

a) Water holding capacity in it is low

b) The percolation rate of water in it is high

c) It is rich in Humus​

Answers

Answer:

C.) It is rich in humus and very fertile

large telescopes have revealed information about the motions of stars. they helped scientists realize that most stars and galaxies are accelerating away from one another. this led scientists to begin to develop the big bang theory. this new theory explained that the universe began as an enormous explosion outward from a single point

Answers

Answer:

c. using observations to spark an idea

Answer:

C

Explanation:

Just did the test

Which process occurs during the light-dependent reactions in photosynthesis?

Answers

Explanation:

thanks for the points man :) yes sir

Anyone knows the answer I need help assap:())))???

Answers

Answer: It is B

Explanation: Because remember invertebrates do not have a backbone.

Answer:

I think B

Explanation:

because they have backbone I think

15. Brown eyes (B) are dominant over blue eyes (b).
Using this example, explain how a child can have a
trait that neither parent expresses physically. Use a
Punnett Square to validate your answer.

Answers

Both parents have Bb Bb

      B        b

B     BB     Bb

b     Bb     bb

The child got little b, little b

Explain how carbon moves from one Earth System sphere to another

Answers

Answer: Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Which of the following muscles gives Reed his defined six-pack?

Answers

Answer:

a. Rectus abdominis

Explanation: is correct

Sound travels fastest in matter that has relatively ______ densities.

Answers

Answer:

low

Explanation:

Match the component of the cerebral nuclei with its function.
a. Involved in consciousness and integration of information from multiple senses (Click to select)
b. Stimulates muscles to produce the pattern and rhythm of walking (Click to select)
c. Excites and inhibits the thalamus to adjust muscle tone (Click to select)
d. Involved in emotion, behavioral activity, and mood (Click to select)
e. Controls muscular movement at the subconscious level
1- claustrum
2- caudate nucleus
3- globus pallidus
4- amygdaloid body
5- putamen

Answers

The components of cerebral nuclei with its correct functions are listed below.

Claustrum: This is involved in consciousness and integration of information from multiple senses. That is option A.

Caudate nucleus: This stimulates muscles to produce the pattern and rhythm of walking. That is option B.

Globus pallidus: This excites and inhibits the thalamus to adjust muscle tone. That is option C.

Amygdaloid body: This is Involved in emotion, behavioural activity, and mood. That is option D.

Putamen : This controls muscular movement at the subconscious level. That is option E.

The cerebral nuclei makes up the three components of the cerebrum that plays an important role in neural systems controlling somatic movement and motivation.

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What are the 50 states

Answers

Answer:this are the 50 states in the america

 

Alabama

Alaska

Arizona

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Hawaii

Idaho

IllinoisIndiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

MontanaNebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

North Dakota

Ohio

Oklahoma

Oregon

PennsylvaniaRhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

Explanation:brainliest aswer or bagde please

Faris and his wife have normal skin color, but they both have a parent with albinism if
you know that albinism is a recessive trait. What is the probability that their first child
will have albinism?

Answers

Explanation:

If a man who's a carrier for albinism marries an albino what percentage of their children will be albinos, however if both parents carry the gene, there's a 1 in 4 chance that their child will have albinism and a 1 in 2 chance that their child will be a carrier. Carriers do not have albinism but can pass on the gene.

Cells and the organisms they make up reproduce through cell division. Some
organisms reproduce through mitosis, while others reproduce through meiosis and
fertilization. What advantage does meiosis give to organisms that reproduce sexually?
a
Meiosis ensures that offspring inherit genes from their parents.
b
Meiosis ensures that offspring will not inherit any genetic disorders.
c
Meiosis ensures that offspring are genetically different from their parents.
d
Meiosis ensures that offspring will have identical phenotypes to their parents.

Answers

C cause they won’t be identical to the parent since they are reproducing sexually

The advantage meiosis give to organisms that reproduce sexually is meiosis ensures that offspring are genetically different from their parents.

What do you mean by meiosis?

In sexually reproducing organisms, meiosis is a unique type of cell division that results in the production of gametes, such as sperm or egg cells.

Meiosis is a kind of cell division in physically repeating life forms that diminishes the quantity of chromosomes in gametes (the sex cells, or egg and sperm).

Gametes, or sex cells, are the end result of meiosis. Each of the four haploid daughter cells produced during meiosis has half the number of chromosomes as the parent cell.

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Muscles that move the wrist and hand originate on which bone(s)?

Answers

Answer:

a. Humerus

Explanation: is correct

Muscles that move the wrist and hand originate on bone carpals. The correct option is d.

What are carpals?

The carpal bones are wrist bones that connect the distal portions of the forearm's radial and ulnar bones to the bases of the five metacarpal bones of the hand. There are eight carpal bones that are divided into two rows: proximal and distal.

The wrist is made up of eight tiny bones (carpal bones) and two large bones in the forearm — the radius and ulna. Each finger has one hand bone (metacarpal) and three finger bones (phalanges), but each thumb has one metacarpal bone and two phalanges.

The carpals are eight bones present in the wrist of the hand. It helps in moving the wrist, and it also attaches the hand to the wrist.

Therefore, the correct option is d, carpals.

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Please help me

What is the thickest layer of the earth?

the crust?
the mantle?
the outer core?
The inner core?


ty!

Answers

I think it’s the outer core! I hope this is correct. Please let me know!

Answer:

core

The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.

Explanation:

20 points for Algae are important to the earth's supply of:________
hydrogen
oxygen
nitrogen
plzzzzzzzz

Answers

I’m almost positive the answer is oxygen
the answer is oxygen :)

The follicle left after an egg is released during ovulation is called a(n)
O A. oocyte.
O B. tertiary follicle.
O c. corpus luteum.
OD. atresia.

Answers

Answer:C, corpus luteum

Explanation:

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Tim has obtained a 3/27 balloon mortgage. After the initial period, he decided to refinance the balloon payment with a new 30-year mortgage. How many years will he be paying for his mortgage in total?A.) 27 yearsB.) 33 yearsC.) 30 yearsD.) 3 years 1. Given f(x)= 3x -4 and g(x)=-2x + 7 evaluate:(g f) (6) Suppose a poll of 30 people in a neighborhood recorded 17 Yes votes. What would be the best estimate of the total number of Yes votes in the neighborhood if it consists of 750 total voters? Write the coordinates of the vertices after a rotation 90 degrees counterclockwise around the origin Based on the author's argument, what conclusion can be drawn about his views on large companies' environmental efforts? A) Environmental laws should be written by the leaders of large companies. B) Large companies do not place enough importance on environmental efforts. C) Leaders of large companies hold the same environmental views as the author. D) The main priority of any large company is contributing to environmental efforts. During World War II, the American military found that all its secret codes were being quickly deciphered by talented Japanese code breakers. The Navajo language provided a unique solution. Navajo was incredibly difficult to learn: complex, unwritten, and full of unusual and difficult sounds. So the military hired Navajo "Code Talkers" to send top-secret messages. The Navajo "code" was not only secure, it was fast. With traditional codes, it could take hours to code and decode a message, but Navajo soldiers could translate messages in just a few minutes. The Navajo code was never cracked. For many decades, the U.S. government kept the program a secret. But in 1968, the Navajo soldiers' amazing contributions became known, and in 2001, the remaining Code Talkers received the Congressional Medal of Honor. Which supporting detail from the passage is least important to include in a summary? A. Code Talkers were faster than other previous code breakers. B. No one ever cracked the Navajo code. C. The Code Talkers were unrecognized for many years. OD. D. Navajo is not a written language, Pls help me asap I give brainliest What is a guild? a. A union of artists that promise to support one another b. An association of people of a certain trade or occupation c. People who support the arts d. None of the above Please select the best answer from the choices provided A B C D. What is the area of the entire polygon below? A kangaroo hops at 55 m to the west in 5 s. What is the velocity of the kangaroo?5.5 m/s W55 m/s W11 m/s W11 m/s/s W Estimate the sum of 8.43 + 8.12 + 7.98 Viruses can mutate. What does that mean? A die is thrown twice. What is the probability that a 4 will result the first time and a 5 the second time? (Assume the die is six sided with each side numbered one through six. Enter your probabilities as a fraction.) An angle measures 4.6 less than the measure of its supplementary angle. What is the measure of each angle? FIND FOURTEEN WORDS HAVING TO DO WITH .THANKSGIVING.AND LIST THEM ON THE SIDE. hello can i get some help Vit mt on vn ngn ( khong 200 ch) trnh by suy ngh ca em v li ch ca vic lm ch cm xc trong ma dch. what is a climax in a story? Can you answer please l Jeffrey is excited to graduate from highschool. His parents suggest celebratingwith a graduation dinner, so Jeffrey findsa restaurant that will rent a private roomfor $25. The restaurant will also charge$7.50 to feed each quest.Write an equation showing how the costof Jeffrey's graduation dinner, y, dependson the number of guests, X.Do not include dollar signs in theequation.