the muscles impulse start with the ...

a. blood
b. muscle
c. neuron
d. heart

Answers

Answer 1

Answer:muscle

Explanation:


Related Questions

Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Answers

Answer:

Binding of   ACh (acetylcholine)    to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Explanation:

It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.

Hence , the answer is  ACh (acetylcholine) .

Removing a specific group of trees within a small area over a long period of time is
a. clearcutting
b. seed tree cutting
C. group selection
d. single tree selection

Answers

Answer:

C. group

Explanation:

Removing a specific group of trees within a small area over a long period of time is group selection. The correct option is C.

What is group selection?

A quantitative definition of group selection is when the average group fitness is greater or less than the mean of the fitness values of the individual members.

Another definition of group selection is when features evolve in accordance with the fitness (survival and reproductive success) of groups.

The conclusion was that although group selection is theoretically feasible, in practice it almost always favors one group over another.

Group selection is the long-term removal of a certain group of trees in a constrained region. In a clearcut, all the trees in a specific region are taken out at once.

The removal of shelterwood cutting clears an area's also clears land cleared for shelterwood cutting, which also involves cutting downing shelterwood cutting, but it is a completes a method of clearing

Thus, the correct option is C.

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What are the major causes for moving air masses in North America? Choose the two that apply

Answers

Where are the answer choices?

Question
Type the correct answer in the box. Use numerals instead of words,
There are an estimated 12,600 spiders in a region of 525 square meters. How many spiders are there per square meter

Answers

Answer:

24

Explanation:

The population density of spiders is found by dividing the population size by the total area that the population occupies.

Answer:

Plato and Edmentum

Explanation:

Looking at a slide of axillary skin under the microscope, you notice the presence of ________ glands that are absent on slides of the scalp.

Answers

Answer:

apocrine

Explanation:

What is the difference between the tissue and the organ?

Answers

Answer:

A group of cells working together is defined as a tissue and several tissues working together comprise an organ. ... The heart is used as an example of an organ which is made up from muscle and valve tissue.

Explanation:

anatomy
1) Which of the following terms describes the body's
ability to maintain its normal state?

Answers

Homeostasis- The ability of the human body to maintain its normal state.

Which of the following fur colors are possible males? Choose all that apply Remember that the gene for white spots is on an autosome, and the gene on the X chromosome .

Answers

The fur colors which are possible are black, black and white, orange, orange and white.

What do you mean Autosome?

An autosome may be defined as the gene in question is located on one of the numbered, or non-gender, chromosomes.

Here, the S genes for white spots are located on an autosome, while the O genes are located on the X chromosome. Hence, the resulting offspring possess the fur colors of black, white, and orange.

Therefore, the fur colors which are possible are black, black and white, orange, orange and white.

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The fur colours which might be viable are black, black and white, orange, orange and white.

Here, the S genes for white spots are positioned on an autosome, whilst the O genes are positioned at the X chromosome. Hence, the ensuing offspring own the fur colours of black white, and orange.

What do you suggest Autosome?

An autosome can be described because the gene in query is positioned on one of the numbered, or non-gender, chromosomes.

Therefore, the fur colours which might be viable are black, black and white, orange, orange and white.

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What region of the Earth's layers experiences the least amount of pressure?

Answers

Answer:

Crust Region

Explanation:

Crust region of Earth's crust experiences the least amount of pressure. Above the mantle, crust is situated. It is the Earth's hard outer shell.

plss answer it’s due in 5 min

Answers

Answer:

No they do not because the traits they have don't depend on their lives its the health they have.

Explanation:

Answer:

It can, because if the animal take example a bear was born with traits of short legs and small claws, he won't be able to run as fast or do as much damage to the prey if it caught up. then the bear will have a small chance of surviving due to the lack of food

Explanation:

Tropical, temperate, and polar describe climate zones due to
A. latitude.
B. rainfall amount.
C. temperature.
D. snowfall amount.

Answers

Answer:

A. Latitude

Different latitudes on Earth receive different amounts of sunlight, and are a key factor in determining a region’s climate.

I need the anwser soon!!Which two statements describe what happens to energy during cellular
respiration?
O A Chemical energy is transferred to molecules of ATP and used to
carry out fe processes.
B. Some thermal energy is transformed into chemical energy-
C. Some chemical energy is transformed into thermal energy
D. Light energy is transferred to molecules of ATP and used to carry
out te processes

Answers

Answer:

the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Explanation:

A scientist conducted a study of an organism and found that its body cells contained 40 chromosomes. While conducting her observations, the scientist noticed that the cells were undergoing cell division. What difference would the scientist expect to observe between the body cells and the sex cells of the organism as they underwent cell division?
Body cells divide by mitosis for the growth and repair of cells, while sex cells divide by meiosis for sexual reproduction.


Body cells divide by mitosis for sexual reproduction, while sex cells divide by meiosis for the growth and repair of cells.


Body cells divide by meiosis for the growth and repair of cells, while sex cells divide by mitosis for sexual reproduction.


Body cells divide by meiosis for sexual reproduction, while sex cells divide by mitosis for the growth and repair of cells.

Answers

Answer:

The difference that the scientist would expect to see between body cells and sex cells with respect to cell division is that body cells divide by mitosis for the growth and repair of cells, while sex cells divide by meiosis for sexual reproduction.

Explanation:

The behavior of the different cell types with respect to their division depends on the functions that each type has.

Somatic cells are those that define the structure and function of the organism, forming tissues by binding together. The process of mitotic division —to obtain from an original cell two identical daughter cells— is important for the growth, development and repair of an individual's tissues.Sex cells or gametes have half of the chromosomal charge —they divide by meiosis, a reductive cell division— and are involved in the process of sexual reproduction.

    The characteristics described for each cell type explain why the other options are not correct.

Answer:

Body cells divide by mitosis for the growth and repair of cells, while sex cells divide by meiosis for sexual reproduction.

Explanation:

What percent of the trees cut down are used for something other than paper?
35%
b. 45%
C. 55%
d 65%
Please select the best answer from the choices provided
OO *
B

Answers

Answer: Google says 65%.

Explanation: Resources that can help you with these problems can be found on Quizlet.

Answer:

D 65%

Explanation:

no explanation available

Which organic molecule is made at the ribosomes?

Answers

Explanation: Briefly, the ribosomes interact with other RNA molecules to make chains of amino acids called polypeptide chains, due to the peptide bond that forms between individual amino acids. Polypeptide chains are built from the genetic instructions held within a messenger RNA (mRNA) molecule.

PLSSS HELP!
What are three land-use practices that contribute to surface erosion by water?

Answers

Sorry that person didn’t help but your answer is

removal of vegetation, production of paper, construction production, and agricultural production

Answer:

hi

Explanation:

IM A BIG DOG BIG BEAR NI- i cant say that...

Which of the following statements is true?
Population density is number of individual organisms of a species living in a unit of area.
Water is not a limiting factor in an aquatic ecosystem.
An ecosystem can carry an unlimited number of organisms.
In a balanced ecosystem, there is no competition for resources.

Answers

Population density is number of individual organisms of a species living in a unit of area.

Answer:

A is the correct answer because

Explanation:

Population density is number of individual organisms of a species living in a unit of area.

Write two differences between the unicellular and multicellular organisms.

Answers

Explanation:

Unicellular organisms contain one cell and all of their functions are based on that one cell whereas multicellular organisms contain more than one cell and there functions are divided amongst different cells like nervous cells, cardiac muscle cells etc..

Unicellular organisms are composed of a single cellMulticellular organisms are composed of more than one cellSimple body organizationComplex body organizationA single cell carries out all necessary life processesMultiple cells perform different functionsThe total cell body is exposed to the environmentOnly the outer cells are exposed to the environmentDivision of labour is at the organelle levelDivision of labour is at cellular, tissue, organs and organ system levelIncludes both eukaryotes and prokaryotesIncludes only eukaryotes

A food handler reports to work with obvious yellowing of the eyes and skin. What should the person be checked for?

Answers

Answer:

Hepatitis A

Explanation:

Hepatitis A refers to a liver disease or infection that results in mild to severe illness in humans and it is typically caused by the Hepatitis A Virus (HAV).

Generally, the main cause of Hepatitis A is as a result of the ingestion of food or consumption of water that has been contaminated by the Hepatitis A Virus (HAV) or getting in direct contact with fluids from an infected person.

Some of the symptoms of Hepatitis A are loss of appetite, feverish conditions, itching, nausea, fatigue, diarrhea, dark-colored urine, malaise, abdominal pains, yellowing of white portions of the eyes and skin (jaundice).

Hence, if a food handler reports to work with obvious yellowing of the eyes and skin. The sickness or illness that the food handler should be checked for as an adult is Hepatitis A.

Hepatitis A is a viral infection, which affects the liver. The person with obvious yellowing of eye and skin should be checked for Hepatitis A.

Hepatitis A is a viral infection caused by the Hepatovirus A. The virus affects the liver, which may lead to mild to severe illness in the patient. The disease is caused by the consumption of contaminated food and water, personal contact with the infected person, and using used drugs with other persons.

Some of the symptoms of Hepatitis A are:

Yellowing of skin and eye stomach pain diarrheafevercolored stools and dark urine

Therefore, the person should be checked for Hepatitis A as he exhibits the symptoms of the disease.

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Why have lions adapted to have sharper teeth than cows

Answers

Answer:

Lions need to blend in their surrounding, but cows don't. ... What adaptation helps a camel to survive in the desert?

Explanation:

I WILL GIVE BRAINLIEST Pretend you're riding the bus to school on a very cold and snowy day. List 3 different phases changes you might see along the way.

Answers

If you’re talking about scientific phases you will see
1. precipitation(the snow falling)
2. evaporation(water turning into vapor)
3.melting(snow turning the water)

While riding the bus to school on a very cold and snowy day three different phases changes you might see along the way are mentioned below:

1. precipitation(the snow falling)

2. evaporation(water turning into vapor)

3. melting(snow turning the water)

What is precipitation, evaporation, and melting?

Evaporation is the process in which liquid changes in vapour or gas and it can be easily observed during hot summer days when there is raining and when wet clothes dry in the presence of sunlight. Evaporation is directly proportional to temperature and when rate of evaporation increases the temperature also increases.

Precipitation is the water that is falling from the sky and it occurs when a portion of atmosphere becomes saturated with water vapour.

Melting is the process in which solid is converted into liquid like ice cube converted into liquid water and this is one of the example of melting.

Therefore, the mentioned below are three phases changes :

1. precipitation(the snow falling)

2. evaporation(water turning into vapor)

3. melting(snow turning the water)

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PLZ HURRY

Use the information from the article to answer the question.

Meteors

Which statements apply to meteors?

Meteors are bits of material falling through Earth's atmosphere.
Meteor showers are associated with asteroids.
Meteors create a streak of light.
The largest meteor found has a mass of 54,000 kg.
Meteor showers occur in the autumn and winter.

Answers

Answer:

Meteors are bits of material falling through Earth's atmosphere

Meteors create a streak of light

While meteors are associated w asteroids, meteor showers are more associated with comets

Meteor showers can occur when ever but there are annual showers that will occur ea yr

Answer:

1.Meteors are bits of material falling through Earth's atmosphere.

3.Meteors create a streak of light.

Explanation:

TRUST ME

Imagine that a biological anthropologist 10,000 years in the future is examining our fossil remains. The anthropologist notices that humans have broad incisors and molars with rounded cusps. How do you think the anthropologist would interpret these traits---what diet would these traits indicate

Answers

Answer:

They were frugivores

Explanation:

Frugivores are animals that mainly eat raw fruits, vegetables, roots, seeds, shoots, etc. Frugivores need to eat diverse fruits and succulent fruit-like vegetables to fulfill their nutritional requirements, although they can supplement this diet with flowers, nectar, small insects, etc. Among their adaptations for fruit consumption, frugivore teeth are clearly distinct, having broad incisors to peel tough fruit rinds. Moreover, these animals generally have long small intestines to digest the fruit.

What is the “self”? When we say “myself” or “yourself” what are we referring to?

Answers

Answer:

when you say self you are to the body, so when you say myself you are basically saying my body, my awereness.  And when you say yourself  it means their body.

Explanation:

Answer:

yourself is said to another person and you say yourself mean you and my self also means you but not used the same way.

Explanation:

hope this helps.

Glad to help

Which organelle that plays a central role in the transport of new molecules from inside to outside the cell?

Answers

Answer:

The Golgi apparatus plays a central role in molecular transport after biosynthesis.

Explanation:

Transcription occurs in the nucleus during protein synthesis, followed by translation inside ribosomes. Then, new molecules join the endoplasmic reticulum to be folded and modified. In the Golgi, they are tagged and separated into lysosomes for export outside the cell.

 The Golgi system comprises of several regions known as cisternae; they act as independent microenvironments where products requiring their own unique conditions are converted into new, stable biomolecules.

How are P waves and S waves alike?


A.)They twist and distort solid objects


B.)They are both fictional particles


C.)They travel in the same manner


D.)They travel through solids

Answers

Answer:

I think the answer is D.

What is the effect of the color of light (red, green, or blue) on how high plants grow?
1) Identify the IV:
2) Identify the DV:
3) Identify important CVs:
4) Write a hypothesis (fill in the format below; refer to the short reading on the next page for ideas for the because):
If , then , because .
5) Write a procedure that would help answer the experimental question.
Materials Needed:

Answers

Answer:

Explanation:

n pea plants, the allele for round peas, R, is dominant over the allele for wrinkled peas, r. What is the phenotype of a pea plant with genotype Rr?
slightly wrinkled

round

some round and some wrinkled

wrinkled
please help me!!!!!!

Answers

Answer:

Smooth

Explanation:

Phenotype is how the plant looks. If we have Rr that means we have a dominant gene of smooth (R) . So this dominant gene covers the recessive gene so we can only observe the plant is smooth.

Pea plants having allele R dominant over the r wrinkled so this recessive mask by the dominant R and phenotype would be round, hence answer is option b round.

What is the law of dominance?

The Law of dominance states that one allele having a dominant trait over the other allele will mask the trait of the recessive allele.

Round peas having genotype R and phenotype round and wrinkled peas having genotype r and phenotype is wrinkled, so in the next generation, the round trait will mask the trait of wrinkle.

In the next generation all the plants show dominant traits, their genotype will be Rr but showing phenotype round and not wrinkle or any other intermediate character.

Therefore round is the phenotype of a plant having genotype Rr, hence option b is correct.

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Why was the Cherokee writing system important?

Answers

Answer:Cherokee was one of the first American Indian languages to have a system of writing devised for it—a syllabary, so called because each of the graphic symbols represents a syllable.

Explanation:

Cherokee was one of the first American Indian languages to have a system of writing devised for it—a syllabary, so called because each of the graphic symbols represents a syllable.

I need help can someone plss help? It would mean alot

Answers

Answer: D Endoplasmic reticulum (ER)

Explanation: It moves proteins throughout the cell

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HELP! The question is in the photo HELP PLEASE 11 POINTS Who Sank the Lusitania and how that changed the course of the war. Harry owns a cat. He takes the cat to the veterinarian for a routine examination. The veterinarian measures the cat's respiration and finds it tobe 10 breaths per minute, and the temperature is 90 degrees Fahrenheit. What can you say about the cat's condition?A. The respiration and temperature are both normal.B. The respiration is normal, but the temperature is below normal.C. The respiration is normal, but the temperature is above normal.DThe respiration and temperature are both below normal. Please help me with this pls and ty a.A bicycle helmet cost $41.40 in 1983. What will a bicycle helmet cost when the CPI is 1869 Round to the nearest cent.$222.58b. $144.60C. $77.00d. $72.30Please select the best answer from the choices providedABDMark this and returnSave and ExitNextSubmit Clancy has 4 2/3 cups of yogurt to share with his friends at a party. Each guest will receive 1 serving of yogurt which is 3/4 of a cup.Write a multiplication equation to determine the number of people, p, who can be invited to the party. Rickey Henderson, baseball's record holder for stolen bases, approaches third base. He dives head first, hitting the ground at 6.75 m/s and reaching the base with a speed of 5.91 m/s, accelerating at -5.11 m/s 2 . Determine the distance Rickey slides across the ground before touching the base. How much time is he sliding for before touching the base? 2x + 5 greater then or equal to -1 Write function that ask for input from a user. Use this input as input for the countdown function that we wrote using the while loop. If the user types 'end', the program exits, otherwise it keeps going. I need help with this pleas Whats X squared - 49 A student is writing out an argument to give during their debate in class tomorrow. The student makes the claim that the bodys organ systems interact to carry out the process of obtaining nutrients from the food it takes in and then working to rid the body of the remaining waste. Which of the arguments below best supports his claim?A. Respiratory system allows the body to bring in oxygen that it needs and Digestive system extracts the nutrients needed from the food the body consumes. B. Digestive system extracts the nutrients needed from the food the body consumes and the excretory system rids the body of the excess waste from the food that was consumed. C. Cardiovascular system carries the nutrients to the parts of the body that need to break them down for energy and Muscular system extracts the nutrients needed from the food the body consumes. D. Muscular system creates the energy needed and Respiratory system carries the excess waste from the food out of the body. The Democratic Party consisted of _________ individuals A poet will use what ? To generate mood and tone.A . Rhythm B. PulseC. TimbreD. Pitch Put the steps in order for adding decimals.Reorder answers1.Fill in any empty spaces with a zero.Reorder answers2.Drop the decimal down into the answer.Reorder answers3.AddReorder answers4.Line up the decimals. x + 15y = 45 / x + 10y = 30 solve for x and y Explain the importance of valence electrons in chemical bonding. figure out the slope of the line that passed through each pair of points (4,-11) and (7,-8) Anton van Leeuwenhoek did all of the following EXCEPT:A) Build the first compound microscopeB) Discover bacteriaC) Help prove the theory of blood circulationD) Discover protozoans