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vazorg [7]
3 years ago
12

Which of the following is true about muscle tone?

Biology
2 answers:
bonufazy [111]3 years ago
6 0
A. It is responsible for keeping the back and legs straight in line when you're related.
UkoKoshka [18]3 years ago
5 0

Answer:

A. It is responsible for keeping the back and legs straight when you’re relaxed.

Explanation:

Muscle tone refers to the state of partial contraction of muscles when the individuals are not moving. Motor neurons command some of the muscle fibers to contract unconsciously. Muscle tone serves to keep the muscles ready for movement and keep the back and legs straight during the relaxed conditions. Muscle tone serves to reduce with age. Exercising improves the muscle tone and prevents their limping.

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The muscular system is made up of Multiple choice question. all the muscles plus the nerves attached to them. all the muscles, l
umka2103 [35]

Answer:

all the muscles.

Explanation:

The muscular system is composed of all muscles in the body. The main function of the muscles is to produce movement in different parts, voluntary or involuntary, creating equilibrium. Muscles are made of myocytes. There are three types of muscles: smooth muscle,  skeletal muscle, and myocardium.

  • The smooth muscle is formed by fusiform cells, mononucleated, and no transversal striations. There is a protein contraction system, but not as organized as the one of the skeletal muscle.  

Smooth-muscle can be found in organs, vessels, veins, and arteries. It provides sustained contractions, slow and rhythmical, but not voluntary.  

  • Skeletal muscle is the most abundant muscle in vertebrates, constituting the somatic musculature. It proportionates motion to extremities and digits and is responsible for the position and posture of the individual. It is also involved in eye movements, respiration, mastication, deglutition, and phonation. It moves the tongue, the superior esophagus, and the pharynx.  

The skeletal muscle is innervated by axons of the motor neurons coming from the CNS. The contraction of the skeletal muscle is voluntary and fast.  

Cells composing the striated muscle are significantly long and multinucleated. They arrange in bundles, where cells are parallel to each other.  

  • Myocardium tissue is more similar to the striated tissue than to the smooth one. However, there are some differences between them. Cardiac cells are cylindrical and smaller, with ramifications. Cardiac cells only have one nucleus, and occasionally there can be two. Actin and myosin filaments are arranged just as the skeletal ones, and the contraction of cardiac cells is molecularly very similar to the skeletal

5 0
3 years ago
Which three organs produce enzymes that digest proteins ?
11111nata11111 [884]

1. Amylase, produced in the mouth. It helps break down large starch molecules into smaller sugar molecules.

2. Pepsin, produced in the stomach.

3. Trypsin, produced in the pancreas.

I'm probably wrong. Sorry.

4 0
3 years ago
scientist are studying a group of ant colonies in the arizona desert which question can be answered scientifically
timurjin [86]

Answer:

Scientists are studying a group of ant colonies in the Arizona desert. Which question about the ants can be answered scientifically?

Explanation:

The correct answer will be option- Does the amount of sunlight in a day affect how much food the ants eat that day.

Explanation:

A scientific method is a systematic approach to understand and explain any natural phenomenon in nature. The scientific method involves making, ask a scientific question, do background research and propose a hypothesis which could be tested to produce a real answer to the scientific questions.

In the given question, the scientist wants to study the ants in the desert through scientific method. The possible question that could be answered will be the how the amount of light can affect the quantity of food consumed by ants as the amount of food can be studied through the experiments by proposing a hypothesis.

Thus, the selected option is the correct answer.

7 0
3 years ago
Read 2 more answers
1) Cuál es la diferencia que existe entre sustitución, Inserción y deleción en las mutaciones
marysya [2.9K]

Answer:

See the answer below please.

Explanation:

There are different types of mutations:

- Substitutions: the exchange of one base for another occurs (eg changes a C for an A), which could lead to a codon change that codes for a different amino acid causing changes in nascent protein, generating a codon that codes for the same amino acid without any change in nascent protein; generate a different codon for the amino acid: a stop codon and cause an incomplete protein to form.

-Insertions: base pairs are added to the DNA sequence.

-Deletions: base pairs are removed from the DNA sequence.

7 0
3 years ago
What form is energy stored in at the end of photosynthesis?
Elis [28]
D. Chemical energy 
The plant converts solar energy into food for the plants. doing this would be a chemical reaction. At the end of photosynthesis there would be chemical energy. :) 

8 0
3 years ago
Read 2 more answers
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