Give TWO reasons why mechanical digestion of food is important! Marking brainliest

Answers

Answer 1

Answer:

Mechanical digestion is a purely physical process that does not change the chemical nature of the food. Instead, it makes the food smaller to increase both surface area and mobility. It includes mastication, or chewing, as well as tongue movements that help break food into smaller bits and mix food with saliva.

Explanation:

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Related Questions

7)
.......... and....
Are weak forces of attraction.

Answers

Answer:

inter molecular forces and van der wall forces are weak forces of attraction.

Explanation:

hope this helps :)

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which solution is hypertonic
both
neither
the inside of the cell
the beaker​

Answers

Answer:

the beaker

Explanation:

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The movement of water across cellular membranes through aquaporins is known as?(1 point)

endocytosis

active transport

simple diffusion

osmosis

Answers

Answer:

- osmosis -

Explanation:

The quick trick is that osmosis can only occur in water or insolvent movements!

Think of fish, fish have a lot to do with osmosis because the water will go through the fish's skin/gills which will help them breathe and thrive.

!! hope that helps love you guys !!

The movement of water across cellular membranes through aquaporins is known as osmosis. Water moves down the concentration gradient. The fourth option is the correct answer.

How do molecules move across the cell membrane?

Molecules can pass the cell membrane both actively and passively. In passive transport, no energy or ATP is required. Molecules can move from a higher concentration to a lower concentration.

Diffusion and osmosis are examples of passive transports. In diffusion, gases and other small molecules pass the cell membrane from a higher to a lower concentration. Water is a polar molecule, so it doesn't pass the membrane due to its nonpolar nature. Cells have aquaporin channels that are made for water.

Through aquaporins, water passes into the cell. This is called osmosis. In active transport, energy is required. When a molecule passes from a lower concentration to a higher concentration, energy is needed. An example is sodium-potassium ATPase.

Hence, the correct answer is osmosis. The fourth option is the correct answer.

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Explain why is it important to investigate water retention properties of soils

Answers

Answer:

Soil water can affect the structural integrity or coherence of a soil; saturated soils can become unstable and result in structural failure and mass movement. Soil water, its changes over time and management are of interest to geo-technicians and soil conservationists with an interest in maintaining soil stability.

Explanation:

I hope it helps..

During what stage(s) of the cell cycle is the cell actively dividing?

Answers

Answer:

interphase

Explanation:

The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.

which is smaller organ from heart and muscle tissue

Answers

Answer:

small instestine...

.

....

Which of the following is NOT an accessory gland of the male reproductive system?

Answers

Answer:

a. Testosterone gland  

Explanation:post protected

Testosterone gland is not an accessory gland of the male reproductive system.

What is Testosterone gland?

Testosterone is a hormone that is primarily produced in the testicles in males and in small amounts in the ovaries and adrenal glands in females. It is a vital hormone that plays a critical role in the development of male reproductive tissues and secondary sexual characteristics, such as muscle mass, bone density, and body hair growth.

Testosterone is also essential for maintaining sex drive and overall physical health in both men and women. The production of testosterone is regulated by the hypothalamus and pituitary gland in the brain, which release signals to the testes to produce testosterone.

Certain medical conditions, lifestyle factors, and aging can affect testosterone production and levels, which can have significant impacts on health and wellbeing. Treatment options are available to address testosterone deficiencies and imbalances.

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How did scientists prove that the food is transported through the phloem

Answers

Answer:

When a aphid is killing at the act of feeding then the body is carefull cut away but the proscis still inserted into the phloem then the food slowly exuded form cut end of the proboscis in the form of drops. These drops contain sugar and amino acids which means food is transported through phloem in plant.

are genes for green seeds similar to yellow genes? Explain your answer.

Answers

Answer:

Explanation:

There is no “yellow” gene in the peas found on farms. ... Mendel's experiments showed that green is the recessive seed color in pea plants.

Since yellow is dominant to green, all of the offspring were yellow.

Which membrane component is a glycoprotein?
ОА
ОD
ОB
ОC

Answers

OA

Carbohydrates. Carbohydrates are the third major component of plasma membranes. In general, they are found on the outside surface of cells and are bound either to proteins (forming glycoproteins) or to lipids (forming glycolipids).

OA, hope that helped!!

In mitosis, the nuclear envelope must first break down so the duplicated DNA can segregate into separate daughter cells. Which phase does this happen

Answers

Sister chromatids are separated during the anaphase of the M phase.

If a deletion occurs in a gene that encodes DNA polymerase I and no functional DNA polymerase I is produced, what will be the MOST likely consequence of this mutation

Answers

5’—>3’ DNA polymerase
3’—>5’ exonuclease : DNA repair
5‘—>3’ exonuclease : primer removing
All of the functions mentioned above may disable.

(LO 1.6) Insulin
is usually broken down during glycolysis.
is a hormone released when blood (glucose) is high.
is hydrophobic.
is released when you are fasting (not eating).
is a channel for glucose found in the inner mitochondrial membrane.

Answers

Answer:

is a hormone released when blood (glucose) is high

how does an autoimmune disease affect the muscular system?

Answers

Answer:

Explanation:

Myositis (my-o-SY-tis) is a rare type of autoimmune disease that inflames and weakens muscle fibers. Autoimmune diseases occur when the body's own immune system attacks itself. In the case of myositis, the immune system attacks healthy muscle tissue, which results in inflammation, swelling, pain, and eventual weakness.

Which statements best describe the role of glucagon and insulin in this scenario

Answers

Glucagon was secreted by his pancreas before he ate the cookies because his blood glucose was low. Insulin was secreted after he ate the cookies because his blood glucose was high.

When the concentration of ________ in tissue fluid is too high, intracellular water moves into the extracellular fluid compartment.

Answers

When the concentration of electrolytes in tissue fluid is too high, intracellular water moves into the extracellular fluid compartment.

OSMOSIS:

Osmosis is the movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane.

Osmotic principle is based on concentration gradient i.e. difference in concentration across a membrane.

Electrolytes represent solute such as salts, ions, sugar etc. Therefore, when the concentration of electrolytes in tissue fluid is too high, intracellular water moves into the extracellular fluid compartment.

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Photosynthesis is a process in which _______ energy is converted to _______ energy.
A.
light; electrical
B.
heat; chemical
C.
light; chemical
D.
chemical; light

Answers

Answer:

C is the answer i think

light,chemical

Answer:

I'm gonna say C is the answer

Explanation:

because the sunlight goes in the plant and comes out as oxygen

Which body system is correctly paired with its function and interaction with the brain?

A. Digestive system; it ensures that toxic materials are not formed in the brain.

B. Skeletal system; it forms a protective structure that surrounds the brain.

C. Muscular system; it helps create energy for brain cells.


D. Excretory system; it eliminates excess carbon dioxide from the brain.​

Answers

Answer:

B

Explanation:

the skull protects the brain

A reaction between an antibody and soluble antigen, forming larger, interlocking molecular lattices, is called a(n)

Answers

Answer:

Precipitation reaction

Explanation:

Answer:

agglutination

Explanation:

How does chemotherapy affect cells

Answers

Chemotherapy treatments can’t differentiate between cancer cells and healthy cells. That’s why chemotherapy harms or kills healthy cells, as well as cancer cells.

Explanation:

Many common side effects of chemotherapy are caused by the treatment’s impact on healthy cells. These side effects include anemia, a weakened immune system, hair loss, and nausea.

John goes to work by car or by train.
(a) The probability that John goes by car is 04
Work out the probability he goes by train

Answers

Answer:

0.6

Explanation:

1 - 0.4 = 0.6

Probability will always be out of 1  therefore if the probability of John going to work by car is 0.4 then going by train would be 0.6.

mixture
7. Explain the following: All compounds are substances,
but not all substances are compounds."

Answers

Answer:

Below

Explanation:

"All compounds are substances,  but not all substances are compounds."

In simpler terms, let us use an example. Look at the image below.

In a big circle, there are substances. And in the small there are compounds. Since the compounds are inside the big circle, they are compounds, but as you can see, the substances are not inside the compounds so they cannot be considered compounds.

If you think about it, a substance is anything. So would you think a bottle, for instance, is a compound? A compound is a mixture of molecules. And a substance is most likely a combination of atoms, which are elements.

i need help with this

Answers

cell wall won’t be found in a animal cell since it’s only there in a plant cell.

Answer:

C. cell wall

Explanation:

The cell wall is the structure that would normally be found in a plant cell but not in animal cell. The plant cells get collapsed due to the environmental pressure, not in the case of animal cell.

What is the coloured ink indicator? Can anyone explain me its function? i really need help​

Answers

Answer:

Bioindicators are species, groups of species or biological communities whose presence, abundance and biological conditions, in real ecosystems or through the use of laboratory toxicity tests, to make inferences about the quality of the environment.

HELP NEEDED!!!!!!!!!BIOLOGY

Answers

Answer:

Explanation:

isotonic - direction of osmosis is equal on both sides

hypertonic - direction of osmosis is outside of the cell

hypotonic- direction of osmosis is into the cell

in addition to the frog, what other organisms are classified as modern amphibians?

Answers

Answer:

1.Toad

2.Newt

3.Salamander

In addition to the frog, the other organisms that are classified as modern amphibians are toads and salamanders. Therefore, the correct option is A.

What are modern amphibians?

Modern amphibians are a class of cold-blooded vertebrates that spend part of their life cycle in water and part on land. They are united under the taxon Lissamphibia. They are divided into three clades which are Urodela,  Anura and Apoda. In addition to frogs, the other two groups of modern amphibians are toads and salamanders.

Snakes and lizards are reptiles, which are a different class of cold-blooded vertebrates. Opossums and koalas are marsupials, which are warm-blooded mammals, and sharks and skates are fish, which are cold-blooded vertebrates but are not classified as amphibians. Therefore, the correct option is A.

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The question is incomplete, but most probably the complete question is,

In addition to the frog, what other organisms are classified as modern amphibians?

A. toads, salamanders

B. snakes, lizards

C. opossums, koala

D. sharks, skates

10. What are the products of aerobic respiration? نقطة Ůاحدة a. Carbon dioxide and Water b. Glucose and Oxygen c. Glucose and Water d. Carbon Dioxide and Oxygen.

Answers

Answer:

a) Carbon dioxide and water

Explanation:

The reaction is called aerobic respiration, and it produces energy which transfers to the cells. Aerobic respiration makes two waste products:carbon dioxide and water.

________ arises when different microbes within a population or community try to acquire the same resource.

Answers

Answer:

competition

Explanation:

competition arises lead to a struggle for survival and adaptation follows

Buzz bugs lay eggs that burrow into polar bear skin write any 2 adaptations which it can have (it’s urgent)

Answers

Answer: See explanation

Explanation: They could have cold resistances since they are being born in a cold climate.

What is the proper definition for abiotic?

Answers

Answer:

In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems

Explanation:

a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it: Abiotic factors can determine which species of organisms will survive in a given environment.

hope this helps you.

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Types of technology include: A Specialized machinery B Medical equipment C Electronics D All of those are correct Pick one please PART A: How does the symbol of grass develop the theme of section 6?BIt reveals that life and death are cyclical and connect everything.6.PART B: Which quote from the text best supports the answer to Part A?A"A child said What is the grass? fetching it to me with full hands; / How could I answer the child? I do not know what it is any more than he." ( Stanza 11)B"Or I guess it is the handkerchief of the Lord, / A scented gift and remembrancer designedly dropt" ( Stanza 13)C"What do you think has become of the young and old men? / And what do you think has become of the women and children?" ( Stanza 20)D"They are alive and well somewhere, / The smallest sprout shows there is really no death, / And if ever there was it led forward life" ( Stanza 21) Need help on this other question, sorry to keep bothering you guys. Choose the statement that correctly compares their unit rates. A. Tyrone's unit rate is equal to John's unit rate. B. Tyrone's unit rate is 2 more miles per hour than John's unit rate. C. Tyrone's unit rate is 1 more mile per hour than John's unit rate. D. Tyrone's unit rate is 1 fewer mile per hour than John's unit rate. Team A beat Team B by 15 points in a football game . If a total of 35 points were scored , what was the final score of the game ?I WILL MARK YOU A BRAINLIEST 25 POINTS!!! WILL MARK BRAINLIEST! Help I dont have enough time to finish this assignment I just need to answer this one question! Thanks and sorry Describe how to do an experiment to show that when you dissolve salt in water the salt is still there. The Roman proconsul Gallio would not judge Paul when Paul was brought up on charges because he said the matter was a _____________________________________. four w plus ten equals negative w performing a particular series of operations on the information, such as a set of calculations........ ILL GIVE BRAINIEST IF RIGHTIs the product of rad 784 and rad 684 rational or irrational? Explain your resonating. Assume that you pay $2,849. 84 in state property taxes every year. If your property has an assessed value of $41,302, what is your states property tax rate? a. 0. 077 b. 0. 032 c. 0. 014 d. 0. 069 Please select the best answer from the choices provided A B C D. I NEED A ANSWER ASAP!! A dog park is 100 yards long and the town wants to install water bowls for their beloved pups. If the town wants a water bowl at each end and every 20 yards ibetween, how many water bowls need to be installed? what are the roles of government in health? 2. Oliver stopped by the convenience store and buys a can of soda. *awill buybought An 8kg mass is placed on a 30 degrees frictionless inclines plane and is attached to a pulley to a hanging mass of 5kgCalculate which direction will the system flowB)what is the acceleration C)the tension in the rope am 7. If the base of the parallelogram is equal to ir and the height is r, then what is the area of the parallelogram? Helppp plzzz I will mark brainliestttt Radiopotassium dating is used for establishing chronologies of ancient hominin sites. Identify the statements that correctly describe radiopotassium dating. 5 SENTENCES DESCRIBE THE STEP BY STEP PROCESSES OF HOW THE IMMUNE SYSTEM PROTECTS US. Pls and thank u Watch this video to help u with the question https://kidshealth.org/en/kids/ismovie.html?WT.ac=k-ra