Food is moved along the digestive system by muscles in the :

I) oesophagus
II) stomach
III) small intestine

A : I only
B : I and II only
C : I and III only
D : All of the above

Answers

Answer 1
D) All of the above :)
Answer 2

Answer:

D. All of the above

Explanation:

The digestive system as a whole is made of muscles for moving of food further. The contraction and relaxation of the muscles enable the food to pass forward.


Related Questions

What do prokaryotes have in common with eukaryotes?

A. They both have a Golgi apparatus.
B. They both have mitochondria.
C. They both have a nuclear membrane.
D. They both have a liquid cytoplasm.

Answers

Answer:

They both have a liquid cytoplasm.

Explanation:

A liquid cytoplasm is an essential part of a cell, in both prokaryotes and eukaryotes. It supports the internal components of the cell, and is the site of many vital cellular processes, such as glycolysis (the first part of cellular respiration).

The Golgi apparatus and the mitochondria are membrane-bound organelles that serve a specific purpose in eukaryotic cells. However, prokaryotic cells do not contain any membrane-bound organelles.

Prokaryotes do have a nucleus, like eukaryotes, but unlike in a eukaryotic cell, a prokaryotic nucleus is not surrounded by a nuclear membrane. Instead, it is just confined to a certain area of the cell, called a nucleoid.

Prokaryotes and eukaryotes  both have a nuclear membrane. Option C

What is the commonality?

Prokaryotes and eukaryotes are two large categories of cells with notable variations in their organization and structure. They do, however, have some things in common.

The existence of a nuclear membrane or nuclear envelope is one of the similarities between prokaryotes (such as bacteria) and eukaryotes (such as plants, animals, fungi, and protists). The cell's genetic material, which can be either DNA or RNA, is encased in the nuclear membrane. It divides the cellular components into the nucleus and the remainder.

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Which is not a basic function of a cell? A. Breaking down molecules B. Making macromoleclues for an organism C. Maintaining a stable external environment D. Removing waste from the cell

Answers

Answer:

D. Removing waste from the cell

Explanation:

Hope it helped mark me brainliest

Answer:

maintaining a stable external environment.

Explanation: I just did it

A gene exists in two different forms (A and a). With respect to the allele present, which type of gamete(s) can a homozygous recessive individual produce?

a
A
Aa
A and a

Answers

Answer:

a

Explanation:

in the words, 'homozygous recessive', the root 'homo' in 'homozygous' means 'same' so that means that a two different alleles can not come from this individual. the word 'recessive' when referring to alleles means it is the submissive (opposite of dominant) or little lettered allele. therefore, this individual will only be able to pass on a recessive allele which is, in this case, 'a'.

hope this helped :))

a could be the type of gamete(s) can a [tex]homo-zygous\ recessive[/tex] individual produce.

The following information should be considered:

In the words, '[tex]homo-zygous\ recessive[/tex] the root homo in homo-zygous means 'same' this means that a two different alle-les can not come from this individual. The word 'rece-ssive' means when referring to alle-les means it is the submissive (opposite of dominant) or little lettered all-ele.

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Listen
State one way scientists could use the banding patterns produced by gel electrophoresis.

Answers

Answer:

Explanation:

Based on their size and charge, the molecules will travel through the gel in different directions or at different speeds, allowing them to be separated from one another.

Which of the following is an example of chemical energy?
Heat given off by a light bulb,
A windmill spinning
Electrons moving in an electrical circuit
Energy in an apple that a worm eats,

Answers

Hear given off by a light bulb because heat is a sign of a chemical reaction

Which question would be asked in a dichotomous key?
A. How long are the insect's antennae?
B. Are the insect's antennae longer than its head?
C. Are the insect's antennae long or short?
D. How does the insect use its antennae?

Answers

Answer:

B. Are the insect’s antennae longer than its head?

Explanation:

Dichotomous key refers to the tool or method which helps the scientist to identify organisms.

It uses a specific series of questions which help in segregation of organisms and ultimately help the scientist to identify the organism on the basis of the observations or properties share by the organism.

Example of a simple dichotomous key is shown below.

Similarly, insects can have antennae longer or shorter than their heads. Thus, the question "Are the insect’s antennae longer than its head?" would help in segregating insects based on their antennae length.

happy to help ya:)

The statement B is correct. Are the insect’s antennae longer than its head?

What do you mean by dichotomous keys?

A dichotomous key is an important scientific tool, used to identify different organisms, based the organism's observable traits. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.

Moreover, for example, in tree identification, a dichotomous key might ask whether the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles.

Therefore, dichotomous keys are useful for biological classification as well as identification. The word dichotomous is derived from the Greek words meaning “two parts.” Each step in the key provides two contrasting choices about a characteristic.

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Which theory did Pasteur disprove by using boiled beef broth and a flask with
S-shaped tubing?

A. Cells came from preexisting cells.
B. Cells make up all living things.
C. Cells are the basic unit of life.
D. Cells came from nonliving things.

Answers

Answer:

D

Explanation:

Pasteur blocked the flask from open air to prove that cells couldn't spontaneously come into life, but rather they must come from preexisting cells.

Answer:

Cells came from nonliving things

Explanation:

Can someone please help me I am doing a project were I have to wet a cloth and wrap it around a thermometer. Then I have a dry cloth and wrap it around another thermometer. The degrees for the wet one was 40 degrees and the dry one was 35. I had to do it three times and the dry one was still 35 on three trys and the wet one was still 40. now calculate the average. (f degrees - 32) x 5/9= the celsius

Answers

Answer:

Explanation:

35 + 35 + 35 + 40 + 40 + 40

(the numbers are there three times due to each trial value. you have to account for each.)

From the math you get 225.

Divide 225 by six due to their being six values

37.5 would be the average without the (f degrees-32) x 5/9

(now following the formula you put ((dont know if you have to follow though)))

37.5 - 32 x 5/9 = 3.055555556 degrees celcius.

Why do elderly persons often develop bowed back and appear to lose height?

Answers

Answer:

When we get older, we experience a loss of bone density and our bones begin to thin and become weaker, which results in osteoporosis, causing us to develop bowed backs and appear to lose height.

We lose bone density as we age, and our bones start to thin and weaken. This leads to osteoporosis, which makes us appear smaller and causes us to acquire bowed backs.

What is osteoporosis ?

Osteoarthritis is an osseous disease that arises when the body makes either too little bone or loses too much bone. Like a result, bones deteriorate and are more prone to breaking from a trip or, in extreme circumstances, from tiny bumps or sneezes. Under a magnification, healthy bone resembles a honeycomb; the term "osteoporosis" refers to porous bone.

What is treatment of osteoporosis?

Typically, bisphosphonates are used initially for treating osteoporosis. Among these is the when first tablet Alendronate (Fosamax). Weekly or monthly pills of was also (Actonel). Ibandronate (Boniva), a tablet taken every month or an IV infusion given every 3 years. The most accurate test for identifying osteoporosis and determining the risk of fracture is commonly believed to be bone density testing by DXA now at hip and spine. Some persons get peripheral DXAs, which assess the thumb and heel bone densities.

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please help with this

Answers

Answer:

4th answer down

Explanation:

3. (4pts) A constraint is a limitation or condition that must be satisfied by a design. For example, you may onl
be able to use certain materials, or you might want the device to operate at a certain speed.
What was a constraint (a limitation or a condition) in this version?

Answers

Answer:

As seen in the question above, "constraint" is a word that indicates a limitation or condition. In this case, we can say that the "restriction" is an imposition to a limit under a given situation, and it can also mean an imposition of the free execution of an activity, skill and even limitation and a conditioning factor to a certain freedom.

The reabsorption of materials into the capillaries surrounding the tubules of nephrons is an example of what?

Answers

Answer:

Homeostatic mechanism

Explanation:

This is an example of homeostatis mechanism. There are many mechanisms in our body that try to keep our body in a steady state as not to disturb the critical processes that occur every second in our body thus these mechanisms are crucial for our everyday survival.

Answer:

yiviv

Explanation:

f8ufug7fyfucugi

PLLEASE HELP ME PART 2!! IM GIVING THE REST OF ALL MY POINTS!! :(

Answers

Answer 1:

Both A & B  

Answer 2:

5

PLS MARK AS THE BRAINLIEST!!!

Nvm I put an answer here I messed up lol my bad (edited)

How and why are seeds dispersed?

Answers

Seeds may be dispersed through animals themselves through feces or wind may carry them. repopulation is the main reason they are dispersed

Answer:

Plants disperse their seeds in lots of different ways. Some seeds are transported by the wind and are shaped to float, glide or spin through the air take weeds for example they disperse their seeds in the wind to create more around the yard

All viruses causes diseases and are called parasites True or False

Answers

Answer:False

Explanation:All viruses do not cause diseases,instead some are very beneficial,the help to prevent infections from the plague bacteria.But some viruses cause infectious diseases like HIV/AIDS,Ebola,Corona e.t.c and viruses are not called parasites because parasites are different from bacteria or viruses because their cells share many features with human cells and some parasites only replicate within a host organism but some multiply freely in the environment.

Fe + 02 - Fe2O3 what is the correct balance

Answers

Please see the attached picture for full solution

Hope it helps

Good luck on your assignment

What are the four ways drugs can affect the nervous system?​

Answers

Answer: They cause complete paralysis, and even stop the person from breathing,  stimulate the synapse so that once an impulse crosses the gap the impulse is repeated over and over again, and They cause all the muscles in the body to go into a continuous spasm of constriction. They can also cut off communication to the nervous system that's where you feel the numbness in painkillers Hopefully this helps!

Read the article and use the information to answer the question that follows. Changing Theories Explain Lamarck's ideas about how organisms changed over time.

Answers

Answer:

Lamarck thought that organisms came into being through spontaneous generation

He thought they changed from simple organisms to more complex organisms because they had an innate drive to become more complex and perfect

Lamarck thought that when organisms changed their behaviors in response to a changing environment, their bodies changed. When they used a part of their bodies more, it changed accordingly. When they used a part of their bodies less, it shrank

Explanation:

Cuz I took the L for y’all

Answer:Lamarck thought that organisms came into being through spontaneous generation

He thought they changed from simple organisms to more complex organisms because they had an innate drive to become more complex and perfect

Lamarck thought that when organisms changed their behaviors in response to a changing environment, their bodies changed. When they used a part of their bodies more, it changed accordingly. When they used a part of their bodies less, it shrank

Explanation:

Help me answer these photosynthesis and cell respiration

Answers

The commas (,) I used separate the 2 processes

No,yes
Yes,no
Chloroplasts, mitochondrion
Yes, no
Carbon dioxide +water(in the presence of sunlight energy),
Oxygen and glucose
Oxygen +glucose +energy, carbon dioxide + water
Carbon dioxide is used up(photosynthesis), carbon dioxide is produced(respiration)
Light energy, glucose
Released, captured

PHOTOSYNTHESIS
Light energy
CO2+ H2O (——————-> O2+C6H12O6

RESPIRATION
O2+C6H12O6——————> CO2+H2O

Which statement describes all types of matter?

A. It is made of carbon, hydrogen, and oxygen.
B. It is composed of organic materials.
C. It takes up space and has mass.
O D. It is made of proteins and carbohydrates,

Answers

Answer:

Im pretty sure the answer is C

Answer:

C  It takes up space and has mass.

Explanation:

Everything in the world has space and mass

Which is NOT a role played by a type of RNA in protein synthesis?
O mRNA transcribes the DNA template.
rRNA makes up ribosomes, which translate the genetic code into a protein.
O tRNA pairs RNA bases with amino acids.
O pRNA is the product of chemically linked amino acids.​

Answers

Answer:

pRNA is the product of chemically linked amino acids.​

Explanation:

All the other choices are exactly the roles of RNA in protein synthesis: mRNA "messenger" RNA transcribes the DNA and travels out of the nucleus; then rRNA "ribosomal" RNA in the ribosome helps assemble the protein using the mRNA; tRNA "transfer" RNA brings amino acids to the assembly line of ribosome and mRNA.

There is no pRNA that I know of, although there are many types of other RNAs like piRNAs (piwi RNAs!) or siRNAs.

Which of the following areas is located in the frontal lobe of the brain?
Broca's area
O hippocampus
thalamus
Wernicke's area

Answers

Answer:

Brocas area

Explanation:

Broca's area is located in the frontal lobe of the brain.

The brain region known as Broca's area is located in the left frontal lobe and is considered the nucleus that controls expressive language.

Thus, in both writing and speech, this portion of the central nervous system specializes in the production of a message with internal coherence and articulated through the language fractions.

In this area, specifically, there are capacities such as:

• Order the phonemes when making a word.

• The organization of words within a sentence.

• The semantic integration of the content to be expressed.

• Motor planning necessary for the expression of language.

Therefore, we can conclude that Broca's area located in the third gyrus in the frontal lobe is responsible for the articulation of language in any of its forms.

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Rabbits are best described as _______.
a.
producers
b.
primary consumers
c.
secondary consumers
d.
tertiary consumers



Please select the best answer from the choices provided


A
B
C
D

Answers

______________________________

Rabbits are best described as primary consumers.

Because they are dependent upon producers for their food.

Hope it helps

Good luck on your assignment

______________________________

Rabbits can be best described as primary consumers. The correct option is b.

What are primary consumers?

The 2nd trophic level is comprised of primary consumers. They are also known as herbivores. They just feed primary producers, including such plants or algae. A grasshopper, for example, is a primary consumer in the Everglades.

Primary consumers are rabbits because they are the first step up from autotrophs. Autotrophs, such as grass, are eaten by primary consumers such as rabbits.

The animals that eat the primary consumers are known as secondary consumers.

Herbivores are the primary consumers of plants. Primary consumers include caterpillars, insects, grasshoppers, termites, and hummingbirds, which only eat autotrophs (plants).

Rabbits are herbivores because they only eat plants - and herbivores are consumers because they eat plants to survive. Consumers include deer, grasshoppers, and rabbits.

Thus, the correct option is b.

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Explain how the shape of a river's stream bed can affect the river's speed and its power to cause erosion.

Answers

Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.

*mark as Brainliest ty*

Answer:

It changes the amount of friction there is. There is more friction where water is shallow, and less friction where water is not as shallow. The friction has the power to cause erosion as it causes movement of water.

What substance influences the reaction but does not participate in the reaction

Answers

a catalyst, because it is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

Answer:

i thinks its a catalyst

Explanation:

Why do fatty foods take longer to digest than sweets?

Answers

Answer:

Fat digests more slowly than other foods and is energy-dense, packing more calories per ounce than other foods

Kangaroos are mammals that lack a placenta. Therefore, they must have an alternate way of supplying the developing embryo with

Answers

Answer: yolk sac

explanation:

the placenta does not develop for a long time so the alternate way of supplying the developing embryo is through the yolk sac which the embryo can receive nutrients and respiratory gas exchange through which the placenta will be formed later.

Kangaroos are mammals that lack a placenta; therefore, they must have an alternate way of supplying the developing embryo with nutrients, as these should be passed from the mother to the embryo during the time of pregnancy.

What is the function of the placenta in pregnancy?

The placenta is an organ that develops during pregnancy to provide nourishment to the growing fetus and to remove waste products from the baby's blood and is attached to the wall of the uterus and connected to the baby by the umbilical cord, it is responsible for producing hormones that maintain the pregnancy, such as progesterone, which helps to keep the lining of the uterus thick, also produces human placental lactogen, which helps stimulate the mother's mammary glands to produce milk.

Hence, kangaroos are mammals that lack a placenta; therefore, they must have an alternate way of supplying the developing embryo with nutrients, as these should be passed from the mother to the embryo during the time of pregnancy.

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The question is incomplete; the complete question is below.

Kangaroos are mammals that lack a placenta. Therefore, they must have an alternate way of supplying the developing embryo with

A. Carbon dioxide

B. Enzymes

C. Nutrients

What happens to the volume of a gas if the temperature is
lowered?
The volume will increase.
The volume will decrease.

Answers

Answer:

The volume will decrease.

Explanation:

Volume of gas is directly proportional to temperature. So if temperature decrease, volume will also decrease.

(Correct me if I am wrong)

Answer:

the volume will decrease

Explanation:

according to Charles Law, the gas and the temperature is proportional to each other.

also the equation V1÷T1=V2÷T2 proves this claim.

hope this helps

Chlorophylls are a type of pigment, a substance that absorbs light. What color
are chlorophylls, which color of light do they absorb, and where are they located in the cell?

A. Chlorophylls are green but absorb red, violet, and blue light and are found throughout the chloroplast.
B. Chlorophylls are red, violet, and blue, but absorb green light and are found in the thylakoid membranes of the chloroplast.
C. Chlorophylls are red, violet, and blue, but absorb green light and are found throughout the chloroplast.
D. Chlorophylls are green but absorb red, violet, and blue light and are found in the thylakoid membranes of the chloroplast.

Answers

Answer:

A

Explanation:

correct answer is D, chlorophylls are green but absorb red, violet, and blue light and are found in the thylakoid membranes of the chloroplast.

mt Teacher
ebook
Sickle Cell anemia is a disease caused by a recessive allele. What is the chance a child will have Sickle Cell if one
parent has it, and the other parent does not and is homozygous.
A. 75%
B. 33%
C. 0%
O
D. 100%

Answers

C. 0%

explanation: since it’s a recessive allele, both parents would need to have at least one allele.
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ITS ONLY ONE ANSWER PLZ HELP ME Which short-term environmental change would a very small asteroid or comet impact on Earth most likely cause? A.flooding B.extinction C.surface craters D.weather pattern changes Kimberly goes on a road trip; her car gets 25 miles per gallon (mpg) and gas costs $3.24 per gallon. Let n represent the number of miles Kimberly has traveled since she started driving. a. Suppose Kimberly has traveled 252 miles (n 252) since she started driving. i. How many gallons of gasoline has she used since she started driving? gallons Preview i. What is the cost of the gasoline that she has used since she started driving? b. Write an expression in terms of n that represents the number of gallons of gasoline she has used since she started driving. c. Write an expression in terms of n that represents the cost of the gasoline that she has used since she started driving. Which point is in the solution set of the system of inequalitiesshown in the accompanying graph?A. (0,4) B. (2,4)C. (-4,1)D. (4,-1) HELP!!! Solve for x given that CE = 36. Show your work which substance will form a solution when mixed with liquid benzene (c6h6) What is the equation of a line with a slope of -2 that passes through the point(6,8) Which of the answers shows three examples of a physical change Explain why a Merry-Go-Round and a Ferris Wheel have a constant acceleration when they are moving. Answer must be at least two sentences and contain words such as velocity and acceleration. Describe the imagery of the engraving, and note any specific details you find important. Ten Points For First To Answer Correctly34 of your books are fiction. 23 of those are historical fiction.What fraction of your books is historical fiction?A. 3/12B. 1/12C. 5/7 D. 1/2 please help thank youuu! The interior angles of a triangle are 60,45and 75.the shortest side is 10cm less than the longest side, determine the perimeter of the triangle to the nearest cm.include a diagram please and thank you!! Why was the Cold War different from all other wars You are the Financial manager of XYZ, Inc., a retailer of the exercise machine and related accessories. Your firm is considering opening up a new store in Beirut. The store will have a life of 20 years. It will generate annual sales of 5,000 exercise machines, and the price of each machine is $2,500. The annual sales of accessories will be $600,000, and the operating expenses of running the store, including labor and rent, will amount to 50 percent of the revenues from the exercise machines. The initial investment in the store will equal $30 million and will be fully depreciated on a straight-line basis over the 20-year life of the store. Your firm will need to invest $2 million in additional working capital immediately, and recover it at the end of the investment. Your firms marginal tax rate is 30 percent. The opportunity cost of opening up the store is 10 percent. What are the incremental cash flows from this project at the beginning of the project as well as in years 1-19 and 20? Should you approve it? Aa Explain the historical circumstances that led to the expansion of the Mongol Empire. answer quick pls If the function f(x) = |x + 5| is transformed to g(x) = |x + 5|, which type of transformation is seen in the graph? what does X equal to ? After plotting the data where x=area, and f(x)=the length of one side of the square, Sam determined the model to approximate the side of a square was f(x)= *square root sign* x-5+3 Use the model Sam created to predict the side length of the square when the area is 86.61281144 popular culture is best described as A trapezoid is shown. The lengths of the bases are 4 and 8. The height of the altitude is 4. What is the area of the trapezoid?