Answers
Answer: movement is always voluntary
Explanation:
Muscles are contractile:
- Contractility is the ability of muscle cells to forcefully shorten. Think of having the ability to flex a muscle.
Muscles are excitable:
- Excitable tissue can conduct or transmit electrical impulses. Basically, it can react to stimulus, which may be delivered from a motor neuron or a hormone. For example, the hormone epinephrine helps muscles to produce force.
Muscles respond to stimulus:
- well since muscles are an excitable tissue, they can react to stimulus. (see answer above)
————————
Muscle movement is NOT always voluntary:
- Some muscle movement is voluntary, which means it is under conscious control. For example, a person decides to open a book and read. Other movements are involuntary, meaning they are not under conscious control, such as the contraction of your pupil in bright light, breathing, blinking, your heart beating, etc.
- Therefore, the correct answer is:
movement is always voluntary
hope this helps :)
Related Questions
identify and briefly describe the importance of the nucleus, chromosomes, mitochondria, and ribosomes.
Answers
Explanation:
The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA.
Mitochondria play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms.
Ribosomes are small cellular structures and are the site of protein synthesis. Ribosomes are found in all cells.
Chromosomes are very important because they contain vast majority of genetic information of organism. The organism's DNA is contained within the chromosome as a long series of nucleotides thar are organised into genes. And helps to inherit the characters of parents to their offsprings.
The nucleus is the control center of the cell. Chromosomes are structures in the nucleus that contain DNA. Mitochondria are organelles that are often called the "powerhouses" of the cell. Ribosomes are organelles that are responsible for protein synthesis.
Nucleus: It contains the cell's DNA, which is the genetic material that determines the cell's structure and function. The nucleus also contains proteins that are involved in gene expression, which is the process by which DNA is decoded to produce proteins.
Chromosomes: There are 23 pairs of chromosomes in human cells, for a total of 46 chromosomes. The chromosomes are made up of DNA and proteins, and they are responsible for storing and transmitting genetic information.
Mitochondria: They are responsible for producing ATP, which is the cell's main source of energy. Mitochondria are surrounded by a double membrane, and the space between the membranes is filled with a fluid called the mitochondrial matrix. The mitochondrial matrix contains enzymes that are involved in the production of ATP.
Ribosomes: They are made up of two subunits, and they are located in the cytoplasm of the cell. Ribosomes can also be found attached to the endoplasmic reticulum. Proteins that are synthesized by ribosomes are used by the cell for a variety of purposes, including structure, metabolism, and transport.
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what is the effect of the biogeochemical cycles?
Answers
Answer:
maintaining weather conditions
Answer:
Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.
Explanation:
The effect of the biogeochemical cycle is the recycling of elements in the
ecosystem.
The biogeochemical cycle consists of the following cycles
Water cycle
Oxygen cycle
Nitrogen cycle
Carbon cycle
These recycling takes place between the non living and living organisms.
Primary producers make use of these elements in the production of food for
the consumers and failure to recycle these elements means the ecosystem
will be wiped out.
The biogeochemical cycle is the natural cycles which is helpful in recycling the basic chemical elements which are needed for the basic survival of life on earth.
There are four biogeochemical cycles popularly they are water cycle, oxygen cycle, nitrogen cycle, and carbon cycle.
Nature is considered to be the mother of the biogeochemical cycle as nature possesses all the essential elements of the living matter which are circulated in the earth.
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.
Chromosomes are easiest to move around the cell when they're tightly packed. What is this process called?
evaporating
condensing
mitosis
replicated
Answers
Answer:
condensing
Explanation:
Consider having to transport a kilometer-long strand of cooked spaghetti from one end of a wood to the other without causing any harm. It will very likely break if you drag it behind you. Attempting to transport an uncondensed chromosome through the viscous cytoplasm is analogous to this. As with the spaghetti, the answer is to roll it up so you can transport it safely; for the cell, the answer is to condense the chromatin into the chromosomes that are visible during mitosis and meiosis.
Frog Dissection
Describe two organ that is also found in human? How is it similar or different from ours?
Answers
The two organs found in both frogs and humans are a heart and a pair of lungs.
Frogs vs HumansBoth humans and frogs have hearts. While human hearts have 2 ventricles and 2 atria, the heart in frogs has only one ventricle and 2 atria.
Lungs are present in humans as well as in frogs. The walls of the lungs in frogs are somehow thinner than that of humans. Also, while frogs can breathe through means other than their lungs, humans can only breathe with their lungs.
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What does pH measure?
the total number of acid molecules in solution
the concentration of hydrogen ions in solution
the concentration of oxygen atoms in solution
Answers
Answer:
I believe the answer is : The Concentration of Hydrogen Irons in Solution.
Explanation:
pH means "potential of hydrogen" and is used to specify the acidity or basicity of an aqueous solution.
1 The equation shows a chemical reaction that occurs in living organisms. glucose + oxygen carbon dioxide + water Which of these characteristics of living organisms is this equation associated with?
1)respiration or nutrition or both
Answers
Answer:
cellular respiration because glucose is metabolized with oxygen to form carbon dioxide energy and water
During cellular respiration, the glucose (carbohydrate) is oxidized to form ATP (energy). Thus, the correct option is 1.
What is Cellular respiration?Cellular respiration is the catabolic process which involve the oxidation of carbohydrate (glucose) to produce carbon dioxide and water. This involves the production of energy in the form of ATP (energy).
Cellular respiration takes place in the mitochondria of cell. Cellular respiration consist of three processes which includes glycolysis, citric acid cycle, and oxidative phosphorylation.
Therefore, the correct option is 1.
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Whats the correct answer answer asap for brainlist
Answers
The wether is sometimes dry and sometimes wet
Sammy is taking notes to study for a test. He wrote out the steps that involve hydrogen during photosynthesis. The steps are shown, but they are not in the correct order.
1 - Water is broken down into oxygen and hydrogen.
2 - Glucose is broken down to be used by plants.
3 - Hydrogen combines with carbon dioxide to form glucose.
4 - Hydrogen enters the plant as part of water.
Which lists the correct order of the steps?
4, 2, 1, 3
4, 1, 3, 2
4, 3, 1, 2
4, 2, 3, 1
Answers
Answer: 4, 1, 3, 2
Explanation:
Answer:
choice B
Explanation:
4, 1, 3, 2 because hydrogen comes in as water then is broken down then is turned into glucose and glucose is used in cellular respiration
What are the precautions of asthma
Answers
Answer:
precautions for asthma are
stay away from your allergies if you have any,avoid breathing harmful smoke or gasesavoid being so excited or scared,get your vaccinations on time have a spare asthma inhaler with you,get proper medications be with good and supportive friendsWhich object would have the most gravity? a crab
a whale a dolphin
a fish
Answers
Answer:
I would guess a fish
Explanation: I dont have one.
Discuss how lymph flows back to the circulatory system and structures threat help the flow of lymph from the upper trunk and lower extremities .
Answers
The lymph flows back to the circulatory system through the lymphatic vessels and subclavian vein.
What is Lymphatic system?This system helps to keep the body cells moist by collecting excess fluid from tissues and depositing them in the bloodstream.
The lymphatic vessels empty the lymph into the right and left lymphatic duct which are connected to the subclavian vein thereby aiding their deposition into the bloodstream and reaching the upper trunk and lower extremities .
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Some people have argued that one of the dangers of global warming is increasingly strong hurricanes. Which of the following is a scientifically valid reason that supports this view?
A. Hurricanes create winds. Warmer air is able to move more quickly, creating more powerful
wind.
B. Hurricanes bring heavy rain. Global warming will cause ice to melt, making more water available to fall as rain.
C. Hurricanes gain energy from warm water. The warmer the water, the more energy that is available to create hurricanes.
D. Hurricanes lose strength over land. If sea levels rise due to global warming, there will be less land to slow hurricanes down.
Please help quick
Answers
Answer: C. Hurricanes gain energy from warm water. The warmer the water, the more energy that is available to create hurricanes.
Explanation: warm water provides more energy to fuel the storms. and climate simulations have showed an increase in stronger hurricanes as the warming continues
What would happen if all the plants on earth died?
Answers
Answer:Without plants there would no longer be oxygen for animals to use to respire therefore animals will die.
And herbivores animals will no longer be able to feed on plants and they will also die.
Is the cell an open or closed system? Explain your answer using at least one example of a cell organelle and its function.
Answers
Answer:
In an open system matter and energy can be transferred ·
In a closed system only energy can be exchanged ·
In an isolated system neither matter nor energy can be exchanged · The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system ·
As an open system the cell allows nutrients to enter the cell and waste products to exit the cell ·
The cell does this through the use of a semi-permeable membrane
Explanation:
A cell is an open system. This means that it exchanges matter and energy with its surroundings. For example, a cell takes in nutrients from its surroundings and releases waste products. It also takes in energy from sunlight or food and releases energy in the form of heat or work.
One example of a cell organelle that illustrates the open nature of the cell is the mitochondrion. Mitochondria are the "powerhouses" of the cell, and they produce ATP, which is the cell's main source of energy.
Mitochondria are surrounded by a double membrane, and the space between the membranes is filled with a fluid called the mitochondrial matrix. The mitochondrial matrix contains enzymes that are involved in the production of ATP.
The mitochondrial matrix is also in contact with the cytoplasm of the cell, which is the fluid that fills the cell. This means that the mitochondria can exchange substances with the cytoplasm.
For example, the mitochondria can take in nutrients from the cytoplasm and release waste products.
The open nature of the cell is essential for life. If the cell were a closed system, it would not be able to exchange matter and energy with its surroundings. This would mean that the cell would eventually run out of nutrients and energy, and it would die.
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Medical biologists are researching a fertility disorder that prevents developing offspring from forming the structures they need to maintain nourishment and continue development. therefore, development ceases early during gestation. what is the final stage of development that these offspring could reach before development stops? zygote blastocyst fetus gametes
Answers
The final stage of development that these offspring could reach before development stops is blastocyst.
A healthily developed embryo will include six to ten cells three days after fertilization. The fertilized egg develops into a blastocyst, a rapidly dividing ball of cells, by the fifth or sixth day. The innermost collection of cells will develop into the embryo. The outer group will develop into the cells that support and protect it.After the blastocyst stage, chromosomal abnormalities are tested for during pregnancy.Hence after blastocyst stage is achieved the the further development and nourishment structures begin to form. Thus, the fertility disorder will halt the development of offspring at the blastocyst stage.learn more about blastocyst here: https://brainly.com/question/3420683
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Calculate the 12-hour output for this
patient: 645 mL urine, 50 mL
drainage from JP drain #1, 66 mL
drainage from JP drain #2
Answers
The Urine output of the patient for the 12-hour period is 63.4 mL/hour.
What is urine output?Urine output is the amount of urine per hour produced by a patient.
To determine the urine output of a patient, the following formula is used:
Urine output = volume of urine produced/time elapsedTotal urine output = 645 + 50 + 66 = 761 mL
Total time = 12 hours
Urine output = 761 mL/12 hr
Urine output = 63.4 mL/hour
In conclusion, the urine output of the patient is determined from the ratio of the total urine output and time taken.
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Discuss your thoughts on the overall lab design. Did it help you understand the concepts better, or did it raise more questions? Do you think you could have designed a better experiment? If so, explain how and then discuss it with your classmates. Share some of your knowledge with them or learn a little more about the experiment you just did.
Answers
For an experiment performed in the laboratory to be effective, a controlled environment is essential.
A laboratory will help to increase the reliability of hypothesis testing, as there will be less interference from the external environment in the experiment.
The design of the laboratory must then be aligned with the needs of the experiment, providing materials and an environment necessary for carrying out the experiment and learning.
What is a scientific experiment?Corresponds to a scientific methodology used to test hypotheses on a topic, through the manipulation and control of variables to prove or disprove an assumption.
Therefore, a scientific experiment carried out in the laboratory will help to reduce bias and interference, generating greater reliability in the results found.
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how would you characterize the importance of diverse perspectives in journalism?
Answers
How many gills does a sea horse have?
Under which class it will come from?
Answers
what class do they come from? : Actinopterygii
How many gills do they have: 4 gills on each side
Consider the following genotype: Yy Ss Hh How many different gamete combinations can be produced?
Answers
In this case, the number of possible gamete combinations that can be produced is equal to six (6).
What is gamete combinations?Gamete combination refers to the possible alleles in different gametes produced by an individual.
In the case of unlinked alleles, there are 6 gamete combinations for these three heterozygous loci (YSH, YSh and Ysh, ySH, ySh and ysh).
In conclusion, the number of possible gamete combinations that can be produced is equal to six (6).
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Explain how the scent of a flower gets to the bee
Answers
Answer:
Some flowers use scent to attract pollinators. Scent is a signal that helps pollinators find and select particular flowers. These floral scents are typically a complex mixture of highly volatile compounds and essential oils that flowers emit into the atmosphere. A flower scent's structure, color, and odor are important in attracting pollinators. Flowers can be identical in their color or shape, but no two floral scents are exactly the same because of the diversity of volatile compounds, relative abundances, and interactions.
A pollinator detects a flower's scent and follows the concentration gradient of the chemical producing the scent to the flower. Plant species pollinated by bees and flies have sweet scents and those pollinated by beetles have strong musty, spicy, or fruity odors. Flowers that use scents to attract their pollinators are generally drab in appearance, white or purple-brown to dark red-brown, and exude very strong scents that can be detected at a distances over one kilometer.
The aroma of some flowers can draw pollinators. Pollinators use scent as a signal to locate and choose particular blooms.
Thus, These floral scents are often a complex blend of essential oils and highly volatile chemicals that flowers release into the atmosphere. Pollinators are drawn to flowers by their structure, colour, and aroma, among other factors.
Although the color and structure of flowers may be the same, no two floral odors are exactly alike due to the variety of volatile chemicals, their varying relative abundances, and their interactions.
A pollinator picks up the scent of a flower and travels to it by following the gradient of concentration of the chemical that produces the scent.
Thus, The aroma of some flowers can draw pollinators. Pollinators use scent as a signal to locate and choose particular blooms.
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What muscular tubes, not supported by cartilage, help regulate airflow into and out of the lungs?
A. trachea
B. diaphragm
C. alevoli
D. bronchioles
Answers
Bronchioles are small, muscular tubes in the respiratory system that help regulate airflow. The correct option is B.
Bronchioles help regulate the airflow by contracting and relaxing their smooth muscles, allowing for adjustments in the amount of air entering and exiting the lungs
Their muscular walls can constrict or dilate, allowing the body to adjust the volume of air reaching different parts of the lungs based on factors like physical activity or oxygen demands. This regulation ensures efficient gas exchange and helps maintain optimal respiratory function.
Unlike the trachea and larger airways, bronchioles lack cartilage support, which gives them the flexibility to respond to the body's respiratory needs.
Thus, the correct option is B.
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Excisions performed within the Musculoskeletal system are categorized based on ____.
Answers
Excisions performed within the Musculoskeletal system are categorized based on: anatomical site, size, partial or complete, other procedures done separately.
What is excisions and musculoskeletal system ?Excisions are be defined as the process of cutting or removing tissue from part of the body, while on the other hand musculoskeletal system are what make it possible for you move your body and your joints.
This musculoskeletal system comprises of or are made-up of the following:
Cartilage BonesTendonsLigamentsExcisions performed within the Musculoskeletal system are categorized based on the following:
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Answer: site, size, partial or complete, other
Explanation:
Excisions performed within the Musculoskeletal system are categorized based on: anatomical site, size, partial or complete, other procedures.
Read this review of a science fiction novel. This new science fiction novel is one of the best that I have ever read. It takes place on a shuttle that shines brightly in the deep, dark reaches of outer space. There are colorful characters, exciting action sequences, and lots of suspense. For these reasons and many others, I would say that this book is one of the best! Which technique does the author use to convince the audience that this science fiction novel is high quality? word choice to create ethos imagery to create pathos repetition to create logos imagery to create ethos
Answers
The technique that the author uses to convince the audience that this science fiction novel is high quality is A. word choice to create ethos
What is a Book Review?This refers to the literary analysis of a book to show the content and to convince people to read or to write criticisms about it.
Hence, we can see that from the given book review, the reviewer notes the content of the book and how it is of high quality, and his word choice such as "colorful characters", "exciting action sequences", etc helps to create ethos.
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Need help with this please
Answers
Answer:
WOULD HAVE HELPED IF I HAVE STUDIED THIS TOPIC I AM EXTREMELY SORRY
Explanation:
is a citizen action program
Answers
A citizen action program is specially designed to improve public services thereby promoting the growth of community based organizations.
What is ICT?This is known as Information and Communications technology and is used to handle different communication processes.
This tool is used in citizen action program for reporting issues such as corruption, mismanagement etc so as to ensure adequate accountability.
The full question include :
What is a citizen action program?
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.The "ring of fire" refers to:
part of the Moon's shadow during a total solar eclipse
part of the Sun visible during an annular solar eclipse
part of the Sun's corona visible from Earth
part of the Sun's shadow during a lunar eclipse
Answers
the part of the sun visible during solar eclipses
isolated DNA from a particular bacterium to analyze the sequence of the bacterial DNA is ATGGGCTAGTCTT what will the complementary strand be
Answers
In a DNA molecule, the complementary strand is the one composed of bases that pair -complement- the bases of the original strand. The complementary strand is TACCCGATCAGAA.
What is a complementary strand?During DNA replication, the molecule unwinds and the two strands are separated. These are the original strands.
Once the strands are separated, the elongation process begins, in which new nucleotides are added to complement each of the original strands.
A DNA molecule grows composed of an old existing strand, which is used to synthesize the new complementary strand.
After DNI replication each new molecule carries an original DNI strand and a new one.
So, the complementary strand is the new one composed of bases that pair the bases from the original strand.
In DNA molecules, Adenine pairs Thymine, and Cytosine pairs Guanine.
In the exposed example,
Original strand ⇒ ATGGGCTAGTCTT
Complementary strand ⇒ TACCCGATCAGAA
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Which statement describes nutrition and respiration in plants?
A
Plants respire only when they are not undergoing nutrition
Plants respire using a process called photosynthesis
B
С
Plants undergo nutrition and respiration at the same time
D Plants undergo nutrition only when they are not respiring
Answers
Answer:
the answer is c
Explanation:
Plants undergo nutrition and respiration at the same time
he animal releases the carbon dioxide back into the atmosphere during respiration.
Answers
All plants and animals return both carbon dioxide and water vapor to the atmosphere.