Describe the relationship between muscles, fascicles, muscle fibers, and myofibrils.

Answers

Answer 1
Skeletal muscle fibers are organized into groups called fascicles. Muscle fibers are composed of myofibrils which are composed of sarcomeres linked in series. The striations of skeletal muscle are created by the organization of actin and myosin filaments resulting in the banding pattern of myofibrils.
Hope this helps :)

Related Questions

What are the products of photosynthesis? (5 Points glucose and oxygen glucose and carbon dioxide carbon dioxide and ATP ​

Answers

Answer:

Glucose and Oxygen

Explanation:

Help please!! I don’t understand this.

Answers

Answer:

1. California Sea Lion and Galapagos Sea Lion are closely related because they have the same genus Zalophus.

2. Escherichia is a Genus.

3. Fungi

PLEASE HELP!! During what phase does the spindle fibers break down!!!

Answers

Answer:

During Telophase.

Explanation:

Using homologous structures and any other information (from notes, activities, etc),
explain your opinion on the THEORY OF EVOLUTION in 8 sentences. Be sure to cite
evidence (supporting details) for your ideas (EVALUATION RI 8.8).

Answers

evolution is fundamentally unpredictable.the theory of evolution as it is used here refers to "macroevolution'a theory is meant to both explain and predict;the theory of evolution only explains .the theory of evolution is not a theory and it is suggested calling it a working hypothesis:the working hypothesis of evolution

Chloroplasts have two regions.
and stroma.

Answers

Answer:

grana and stroma

Explanation:

The answer is Grona and stroma

answer all 3 please

Answers

Answer: 1. Earthquake

2. Lava

3. Divergent Boundary

Explanation:

__________ is a single-stranded molecule made of nucleotides of bases uracil, adenine, guanine, and cytosine

Answers

RNA is a single stranded molecule that contains uracil

The cacti in this environment survive by spreading out and growing apart from one another. Why do the cacti grow this way?

Answers

Answer:

b b b b b b b b

Explanation:

Answer:

B

Explanation:

Which of the following is not an example of a unique adaptation that suits an organism to a particular environment?

Answers

Answer:

Could you possibly provide the list in which I can choose from to state the answer?

Which molecules are inputs in photosynthesis?

Answers

Answer:

Explanation:

In photosynthesis, water, carbon dioxide

WILL MARK BRAINLIEST PLS HELP
Many biotic factors affect individuals in a population. Which of the following is an example of an organism being directly affected by a biotic factor?

A plant is located in a room with no light source.


A chipmunk hibernates when the temperature gets colder.


A maple tree growing on a hillside washed away in a flood.


A squirrel has water and a nest but cannot find a mate

Answers

Answer:

A plant is located in a room with no light source

Answer:

The maple tree would most likely the answer

Explanation:

This is because its shaping its environment

Which neurotransmitters are used for each division of the autonomic nervous system? Be sure to describe the synapse at the autonomic ganglion and at the effector. What component of the system determines if a given neurotransmitter has an excitatory or inhibitory effect on the target effector?

Answers

Answer:

The autonomic nervous system is in charge of controlling visceral effectors. Traditionally, it is described by its peripheral nervous components (ganglia, nerves and plexuses) and two divisions are distinguished: the sympathetic and the parasympathetic. Transmission of the excitatory stimulus through the synaptic cleft occurs by release of neurotransmitters; the neurotransmitters of the sympathetic and parasympathetic nervous system are mainly norepinephrine (NA) and acetylcholine (AC). The NA-secreting fibers are called adrenergic and those that secrete AC, cholinergic. All preganglionic neurons, both those of the sympathetic nervous system and those of the parasympathetic nervous system, are cholinergic. The neuron that releases the neurotransmitter is called a presynaptic neuron. The signal receptor neuron is called a postsynaptic neuron. Depending on the type of neurotransmitter released, postsynaptic neurons are either stimulated (excited) or de-stimulated (inhibited).

Explanation:

The autonomic nervous system is the part of the central and peripheral nervous system that is responsible for the regulation of the involuntary functions of the organism, the maintenance of internal homeostasis and the adaptive responses to variations in the external and internal environment  and two divisions are distinguished: the sympathetic and the parasympathetic. Acetylcholine is the preganglionic neurotransmitter of both divisions of the S.N.A. (sympathetic and parasympathetic) and also of the postganglionic neurons of the parasympathetic. The nerves at whose endings acetylcholine are released are called cholinergic. Norepinephrine is the neurotransmitter of postganglionic sympathetic neurons. The nerves into which norepinephrine is released are called adrenergic. Within the efferent sympathetic impulses, the postganglionic neurons that innervate the eccrine sweat glands and some blood vessels that supply the skeletal muscles are of the cholinergic type. Both acetylcholine and norepinephrine act on the different organs to produce the corresponding parasympathetic or sympathetic effects. The peripheral nerve endings of the sympathetic form a reticulum or plexus from which the terminal fibers come in contact with the effector cells. All the norepinephrine in peripheral tissues is found in the sympathetic endings in which it accumulates in subcellular particles analogous to the chromaffin granulations of the adrenal medulla. The release of norepinephrine at nerve endings occurs in response to action potentials that travel through nerve endings. The receptor, when stimulated by catecholamines, sets in motion a series of membrane changes that are followed by a cascade of intracellular phenomena that culminate in a measurable response. There are two classes of adrenergic receptors known as alpha and beta. These two classes are again subdivided into others that have different functions and that can be stimulated or blocked separately. Norepinephrine primarily excites alpha receptors and beta receptors to a small extent. The neurotransmitter acetylcholine is synthesized at the axonal terminal and deposited in synaptic vesicles. Acetylcholine activates two different types of receptors, called muscarinic and nicotinic receptors. Acetylcholine (AC) synthesis takes place at presynaptic termination by acetylation of choline with acetyl-coenzyme A, a reaction catalyzed by acetylcholinetransferase. The energy required for the release of a neurotransmitter is generated in the mitochondria of the presynaptic terminal. Binding of neurotransmitters to postsynaptic membrane receptors produces changes in membrane permeability. The nature of the neurotransmitter and the receptor molecule determines whether the effect produced will be one of excitation or inhibition of the postsynaptic neuron.

Which of these is an example of soil contamination?
a. A recycling bin
b. An eroded hillside
c. Industrial waste
d. A clear-cut forest

Answers

Industrial waste! This is because the waste is in direct contact with the soil in the form of chemicals or even heat!

Answer:

industrial waste

Explanation:

What is the main function of the immune (lymphatic) system?
A. Keeping a body healthy from disease

B. absorbing oxygen

Answers

Answer:

A. Keeping a body healthy from disease

Answer:

A. Keeping a body healthy from disease

Explanation:

The immune system is made up of special organs, cells and chemicals that fight infection (microbes).

Hope this helps!

Which is the best prediction of what might happen if the organism at the center of a food web completely disappeared and the animals that depended on it were not able to find an alternative food source?

Answers

Answer:

The animals who eat that organism would die, since their food source has gone away, the animals would even go extinct from starvation

Explanation:

Come up with five ethical guidelines for research. Write statements that reflect your own views of
what is right and wrong. If you really love animals, an example of one guideline might be "No
animals may be used in research of any kind." However, when coming up with these guidelines, be
thoughtful about what they really mean. Think of the information you read about earlier. Try to
phrase your guidelines in a way that would allow research that you think would be beneficial to
still be done. You may find that certain circumstances may cause you to rethink your own ethics!

Answers

Answer:

No

Explanation:

The cereal you ate for breakfast was most like grown in a_____.

desert
grassland
tropical rainforest

Answers

Grassland because cereal comes from wheat and wheat cannot thrive in a dessert or a rainforest
The grassland because most of our cereal is made from wheat and grassland if the only place wheat can grow

Which of the following describes a mutual relationship?
A pack of hyenas hunt together so they can attack larger animals.
Ants drink nectar from an acacia tree and protect the tree from harmful insects.
A flock of seagulls fly together to reduce the amount of air resistance they feel.
A grasshopper and a rabbit eat different types of plants to avoid competition.

Answers

Answer:

Your answer would be A: A pack of hyenas hunt together so they can attack larger animals.

Plants growing high up on mountains tend to be much smaller than those growing at sea level. This is because the rate of photosynthesis for plants on the mountain is slower. Which factor is at a lower level in the mountain environment, causing a limit to the rate of photosynthesis?

Answers

Answer:

CO2

Explanation:

plssssssssssssssssssssssssssssssssssssssssss help

Answers

Answer:

1st question= physical weathering

2nd question= deposition

Explanation:

hope it helps

please help..........​

Answers

It’s the last one okay

The ecological role of fungi is that of:
O producers
O predators
O grazers
O decomposers

Answers

Answer:

decomposers si the light answer

decomposers is the right answer

Are dinosaur fossil bones often found in the order they appeared on the animal? Explain.

Answers

Answer:

no

Explanation:.............

Which if the following are more closely related? Why?

A- Frog and Ant
B- Salmon and Frog **
C- Bear and Ostrich.

Answers

The answer is B

Both frogs and fish are exothermic, or coldblooded. This means that they cannot control their body temperature by internal means. Another example is that fish and frogs hunt for fresh pray and are willing to eat dead animals and plants.
The answer is B have a great day my love

Which of the following is the best description of an element?

1. A substance that cannot be broken down into simpler substances

2. A naturally occurring mineral made of more than one substances

3. A small particle made with a specific chemical composition

4. A collection of atoms that have different abilities when joined together

Answers

Answer:

I think 1

Explanation:

you can't break an element into different elements

A climber falls down on a rope causing his body to lift up words and rise up along the rope is that newtons first law second law or third law

Answers

I believe the answer is Newton’s Third law

1. List some things that happen to your body when you are really cold or really hot.
2. From your list, think of 3 body systems that work to regulate your body temperature and keep it around 98.6 degrees Fahrenheit .

Answers

Answer:

1 . when the body gets really cold . the muscles will generate heat through shivering then the blood vessels that will transfer warm blood from the organs to the cold skin ....

when the body gets hot ... your heart begins to pump faster that way it's bringing the blood closer to the serface of the skin

Explanation:

some body systems that work to regulate body temperature is

. cardiovascular

. muscular

. and the blood vessels as well

hope this helps !!!!

The immune response consists of different components playing their role for a common goal: to rid the body of a pathogen. Create an analogy that helps explain the roles of the responses of the immune system and describe the relationship between the responses.

Answers

Answer:

In a primary immune response, naive B cells are stimulated by antigen, become activated, and differentiate into antibody-secreting cells that produce antibodies specific for the eliciting antigen.

A secondary immune response is elicited when the same antigen stimulates memory B cells, leading to the production of greater quantities of specific antibodies that are produced in the primary response

Answer:

In a primary immune response, naïve B cells are stimulated by antigen, become activated, and differentiate into antibody-secreting cells that produce antibodies specific for the eliciting antigen.

A secondary immune response is elicited when the same antigen stimulates memory B cells, leading to the production of greater quantities of specific antibodies that are produced in the primary response.

  

1. Which statement regarding these
methods of reproduction is correct?
(1) They are both forms of asexual
reproduction.
(2) They are both forms of sexual
reproduction.
(3) Method A is a form of asexual
reproduction and method B is a form of
sexual reproduction.
(4) Method A is a form of sexual
reproduction and method B is a form of
asexual reproduction.

Answers

Do you have a like text book for this for me to answer?

ANY FOUR DICOT SEED?​

Answers

Answer:

bitter gourd seeds

castor seeds

Mango seeds

Night jasmime seeds

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