Certain cells, such as those along the digestive tract, need to absorb a lot of materials. What unique features do you notice about the shape of these cells? How might this improve their ability to absorb materials?

Answers

Answer 1

Answer:

Microvilli are typical of these cells. These projections increase the absorptive area on the cell surface.

Explanation:

Epithelial cell surfaces show different structure shapes that allow the cells to adapt to and accomplish their functions. Most of these structures are related to the absorption surface and the need to move substances.

The development of microvilli is very common in epithelial cells. These are folds or finger-like projections emerging from the apical surface of the cell. Their principal function is to absorb. The microvilli of the intestinal epithelium are very uniform in size and distribution.


Related Questions

Myosin is plentiful in muscle cells, but is not found at all in lens cells. Lens cells contain large amounts of crystallins, which are not found in muscle cells. Why do some proteins appear in one type of cell but not in another?

Answers

JSJSJSJSjsnanajabzbdbjdensi
The answer is: During differentiation, certain genes are activated to produce proteins that enable specific functions.

how much force would is required to stop a 1200kg car in 2 seconds if the car is traveling at 22 m/s

Answers

Force required = F = ?

mass of the car = m = 1200 kg

initial velocity of the car = Vi = 10 m/sec

final velocity of the car = 0

time required to stop the car = t = 20 sec

Using Newton`s 2nd law of motion;

F = ma ………………………(1)

as a = Vf - Vi / t , put this value in equation (1)

F = m ( Vf - Vi /t ) ………………(2)

F = 1200 ( 0 - 10 /20) = - 600 N

here Negative sign shows that external force is acting in opposite direction of the motion to bring it to rest.

we can also calculate this force by using the relation

Rate of change of momentum = net force acting on the object …………(3)

m Vf - m Vi / t = net force acting on the object

m (Vf - Vi / t) = F

1200 ( 0 - 10 /20) = - 600 N = F

so, net force acting on the object =F = - 600 N

The force required to stop the car is 13200 N.

We have car of mass 1200kg.

We have to determine how much force is required to stop this car in 2 seconds.

What is Force ?

Force is defined as the product of mass and acceleration. Mathematically-

F = ma

According to the question -

Using first equation of motion -

v = u + at

0 = 22 + a x 2

-22 = 2a

a = -11 m/s².

The force required to stop the car = M x a = 1200 x |a| = 1200 x 11 =

13200 N

Hence, the force required to stop the car is 13200 N.

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HELP ASAP WILL GIVE BRAINLEST Which of these presents an ethical issue associated with genetic testing on humans?


Genetic testing could not cause harmful mutations.


Genetic testing could improve the diagnosis of disease.


Genetic testing could cause discrimination by revealing health risks.


Genetic testing could cause ecosystem damage by creating mutant mosquitos.

Answers

Answer:

i think it could reveal health risks

Explanation:

i hope that is correct!

Genetic testing results in some circumstances could be ambiguous or inconclusive. Detrimental effect on connections with family and friends. Thus, option C is correct.

What are negative impact of genetic testing in humans?

The following are some drawbacks or hazards of genetic testing: Your stress and anxiety may increase throughout testing.

Results in some circumstances could be ambiguous or inconclusive. Detrimental effect on connections with family and friends.

Because the findings of genetic testing can expose information about family members besides the test subject, this causes conflict between families.

Another issue is the potential for genetic discrimination in insurance or the workplace.

Therefore, Genetic testing could cause discrimination by revealing health risks.

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What is the most distal interphalangeal joint?

How many carpal bones are in the wrist?

Answers

Answer:

"proximal interphalangeal joints" (PIJ or PIP), those between the first (also called proximal) and second (intermediate) phalanges.

"distal interphalangeal joints" (DIJ or DIP), those between the second (intermediate) and third (distal) phalanges.

our wrist is made up of eight small bones (carpal bones) plus two long bones in your forearm — the radius and the ulna. The most commonly injured carpal bone is the scaphoid bone, located near the base of your thumb.

Explanation:

Why is unlined landfill a point source pollution
PLEASE HELP

Answers

Answer:

Septic systems is the BEST example of a non-point source of water

pollution.

Explanation:

Residue from inappropriately oversaw building destinations, harvest and woods terrains, and disintegrating streambanks. Salt from water system practices and corrosive seepage from surrendered mines. Microbes and supplements from domesticated animals, pet squanders and broken septic frameworks. Residue from inappropriately oversaw building locales, harvest and woods grounds, and disintegrating streambanks.

Instinct or learned behavior?
A bird building a nest.

Answers

Answer:

a bird building a nest is learned behavior

Answer:

instinct because birds know to build it because for eggs

PLEASE HELP! Easy 10 points

Answers

Answer:

We exhale i think

Explanation:

We exhale to get Rid of carbon dioxide

HELP PLEASE GIVING BRAINLIEST EXPLAIN YOUR ANSWER NO GO.OGLE

Answers

Answer:

B

Explanation:

B - Wealthy farmers bought huge amounts of land to be able to grow crops and be able to grow their agriculture.

which scenarios are examples of artificial selection?


A: breeding certain cows for increased milk production


B: farmers planting seeds from only most productive crops

C: bacteria becoming more resistant to human antibiotics

D: creating a new breed of dog that js hypoallergenic ​

Answers

Answer:

D

Explanation:

Science has altered it

What determines when a cell divides?


Please help i need a answer that is not off the internet it needs to be in own words.
I will mark brainly
please please help me

Answers

Answer:

cell regulates their division by communicating with each other using chemical signals from special protein called cyclins. these signals act like switches to cell when to start and later when to stop dividing.

If a certain organism is a secondary consumer, what best explains its position in the food web?
X, because organism X feeds on producers
Y, because organism Y feeds on producers
X, because organism X feeds on a carnivore
Y, because organism Y feeds on a herbivore

Answers

Answer:

Y because organism y feed on herbivore

Explanation: using process of elimination this one makes sense and i got it right on the test.

Select the correct answer.
How are 3-D printers useful in studying evolution?
A.
to color the fossils of organisms
B.
to create clones of extinct organisms
C.
to create replicas of fossils
D.
to prepare paper cutouts of organisms
E.
to study the composition of fossils

Answers

They create replicas of fossils.

Answer:

c

Explanation:

1. The fact that the population of moths includes both brown and green moths is
an example of *
a, selection
b. overproduction
C. competition
d, variation
e, speciation

Answers

d. Variation
Their physical features vary, I’m not sure how else to describe it.

The fact that the population of moths includes both brown and green moths is an example of variation.

What is Population?

The population is the group of individuals belonging to the same species living in the same area at a particular time.

The population of moths consists of two types of genetic variations, which means there is an existence of two different alleles that are responsible for the expression of two different colours (brown, green) in the population of moths.

Therefore, the fact that the population of moths includes both brown and green moths is an example of variation.

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how does sequencing genes provide evidence for evolution

Answers

Answer:

how does sequencing Gene's brain function as an instrument for me and my

As the ability to sequence the nucleotides making up DNA has improved, it also has become possible to use genes to reconstruct the evolutionary history of organisms. Because of mutations, the sequence of nucleotides in a gene gradually changes over time.

Which 2 cells would be more genetically similar to each other?

Answers

Two somatic cells produced by the same person
Found it on quizlet ,lol

The cell is the fundamental block of living organisms. Cells are of two types including Somatic cells and germ cells.

Somatic cells refer to all the cells of the body except for the germ cells or as a whole-cell in the case of the unicellular organism.

The somatic cells are obliged to build the whole body parts.

Somatic cells divide only by the process of mitosis.

The germ cells are the generative cells liable for reproducing the offspring.

Germ cells generate cells like sperm in males and eggs in females.

Germ cells are the unique cells that undergo both mitosis and meiosis to produce gametes.

The germ cells produce haploid (N) cells.

Therefore, the two somatic cells of an individual will be identical as they carry the same genetic information.

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2). WHAT TWO THINGS MUST HAPPEN TO PEOPLE IN DEVELOPING COUNTRIES IN ORDER TO BECOME LIKE INDUSTRIALIZED COUNTRIES AND BE ABLE TO REDUCE POPULATION GROWTH?​

Answers

Answer:

Advertise or tell everyone near about the country.

Explanation:

how do the geocentric and heliocentric models of the solar system differs?​

Answers

Answer:

The main difference is that the geocentric has the Earth at the center, and the heliocentric has the sun at the center.

Answer:

The geocentric has the Earth at the center while the heliocentric has the sun at the center.

Explanation:

:)

Does the stratosphere have a high or low temperature also what is the temperature

Answers

Answer:

Explanation:

The stratosphere is the second-lowest layer of Earth’s atmosphere, starting at 10 kilometers above the surface. Unlike the troposphere, the temperature in the stratosphere increases with altitude. At the top, the temperature is around 32°F – almost 100 degrees higher than the bottom.

Which statements best describe shared characteristics? Select two options.
a. Shared characteristics always exist in the common ancestor and in the modern organism
b. Shared characteristics never exist in the common ancestor or in the modern organism.
c. The more characteristics organisms share, the more closely related they are.
d. The fewer characteristics organisms share, the more closely related they are.
e. Shared characteristics can exist among organisms that belong to different species.
f. Shared characteristics only exist among organisms that belong to the same species.

Answers

the answer is e towards your question

A cross between a white rooster and a black hen results in 100% blue offspring. When two of these
blue offspring are mated, the probable phenotypic ratio seen in their offspring would be
A) 1:1:2 B) 3:1 C) 1:2:1
D) 2:1:1

Answers

Answer:

c

Explanation:

they each contain a gene from their father, their mother, and themselves, since they are both blue there will be 2 blue genes, 1 black and 1 white

A cross between a white rooster and a black hen results in 100% blue offspring, so when two of these blue offspring are mated, the result is 1:2:1, which is option c, as 1 is white, 2 are blue, and 1 is black.

What is the significance of the genetic crossing?

Due to incomplete dominance, genetic crossing occurs between two animals, such as one black hen and one white rooster, and the offspring are blue. When these two heterozygous blue birds cross, a total of four hens and roosters offspring are formed: 1 is black, 1 is white, and 2 are blue and this  genetic crossing can also increase genetic diversity within a population due to meiosis.

Hence, a cross between a white rooster and a black hen results in 100% blue offspring, so when two of these blue offspring are mated, the result is 1:2:1, which is option c, as 1 is white, 2 are blue, and 1 is black.

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Matthias Schleiden and Theodor Schwann looked at plant and animal cells. Schwann wrote the first part of what is known as the cell theory. Which statement did he write? A. All organisms are composed of one or more cells. All cells come from existing cells. B. All organisms are composed of one or more cells. The cell is the basic unit of life in all living things. C. All cells come from existing cells. The cell is the basic unit of life in all living things. D. All cells are microscopic in size. All cells come from existing cells.

Answers

Answer:

B. all organisms are composed of one or more cells. the cell is the basic unit of life in all living things.

Explanation:

This is the first part of the cell theory.^-^

How is Meiosis I different from Mitosis?
O Homologous chromosomes pair up
O The number of chromosomes from the parent to the daughter cells is the same
O Homologous chromosomes swap sections of DNA (Crossing Over)

Answers

The second one because the parent and daughter cells are the same

_______ is an inheritance pattern in which a trait is controlled by many genes. I WILL GIVE BRAINLIEST PLZ HELP

Answers

Alleles I think if it’s wrong sorry

What is the starting point for an argument?


a
Counterclaim

b
Bridge

c
Claim

d
Support

Answers

Answer:

i think its c

Explanation:

Answer:

c

Explanation:

claim

2. How does magma become an igneous rock?

Answers

Answer:

By cooling down.

Explanation:

Magma is just molten rock inside a (lava outside) So when it cools down and is no longer molten, it turns back to rock! hope this helps

By cooling down is the answer

A. How do the oxygen (O2) and carbon dioxide (CO2) levels change over time?

Answers

Answer: How does CO2 level affect oxygen production? increasing CO2 production increases oxygen production. ... Greater flow of oxygen corresponds to a higher rate of photosynthesis.

Explanation:

Oxygen ( O₂ ) and carbon dioxide ( CO₂ ) levels change over time ;  

Due to man-made and natural processes  

Natural processes such as Photosynthesis and the storage of carbon in the biosphere and hydrosphere. cause a varying change in the levels of CO₂ present in the atmosphere because during photosynthesis CO₂ is used by green plants while the amount of stored carbon in the hydrosphere affects the level of available carbon in the atmosphere in general.  

Man-made processes which includes the burning of fossil fuels and the release of CFC's into the atmosphere through gas flaring also the indiscriminate burning of bushes contribute immensely to the levels of carbon found in the atmosphere.  

Hence we can conclude that Oxygen ( O₂ ) and carbon dioxide ( CO₂ ) levels change over time ; Due to man made and natural processes  

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What is the function of RNA polymerase in the process of transcription?

A. It turns RNA into a polymer (long chain of repeating molecules)
B. It turns DNA into a polymer (long chain of repeating monomers)
C. It unzips RNA
D. it unzips DNA​

Answers

I’m not really sure

The deforestation of rainforests in South America is an example of what specific type of
threat to biodiversity?

Answers

Answer:

habit destruction

Explanation:

deforestation gets rid of homes to the animals.

I will give brainliest

Answers

Answer:

A.

Explanation:

The molecules will break down while the individual atoms are used to provide energy to the cells.

Please answer ASAP
Unlike the rest of the organic carbon
compounds, which of the following
elements do lipids contain a smaller amount
of?
A. nitrogen
B. oxygen
C. phosphorus

Answers

Answer:

I believe that it's C. phosphorous, because it says a lipid contains phosphorous in some cases.

Explanation:

Lipids are composed of carbon, hydrogen and oxygen atoms, and in some cases contain phosphorus, nitrogen, sulfur and other elements.

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(Cloudy Day) Lines 9 - 12 and 20 - 23 refer to the presence of the guards. What ideas about prison life are conveyed by these references?"the wind carried our worlds over the fence, while the vigilant guard on the tower held his cap at the sudden gust" "The brim girded with barbwire with the gusty sitting there also, listening intently to the sounds as clouds cover the sun" I'm desperate, and need help, this stuff has me stuck WILL GIVE BRAINLIEST FOR THE RIGHT ANSWER!!!!!Which elements can form diatomic molecules joined by a single covalent bond?A. hydrogen onlyB. halogens onlyC. halogens and members of the oxygen groupD. hydrogen and the halogens only Why can't 41 be represented in a binary table? Which statements correctly compare the masses of protons neutrons and electrons 20 POINTS PLEASE ANSWER Calculate the time t for $1000 to become 1300 at a rate of 59 years3 years10 years6 years HELP 100 POINTS ASAPWILL MARK THE BRANLIESTA group of biologists found a total of 28 loggerhead turtle nests along a beach during a certain season. This was 40% of the total number of turtle nests the group found during that season. What was the total number of turtle nests the group found during that season? 70 85 110 143 What were the military and political turning points of the war? General Ulysses S. Grant was promoted and brought east in 1864 to achieve the final defeat of Robert E. Lee and the Confederacy. Identify the concept on which Grants strategy to finally defeat the Confederacy and Lee was based. Read this excerpt from "Wiley, His Mama, and the Hairy Man in The People Could FlyHe hollered, "There's nothin here but a sucklin pig!"This excerpt is from which part of the story?the expositionthe rising actionthe climaxthe resolution someone PLEASEEEEEE answer this question for me i really want to pass ); What characteristic is an attribute of Brazilian culture?Group of answer choicesHinduism is the primary religion.Portuguese is the chief language.Cinco de Mayo is a recognized holiday.The government is a constitutional monarchy. What are the combined alleles of all individuals in a population called?Arelative frequencyB.phenotypegenotypeDgene pool Name the genre that uses improvisation? aClassical bPop cJazz dFolk Whose ship capsized in Galveston, Texas, and was captured by surrounding NativeAmerican tribes?Cabeza de Vacab. Juan Ponce de LeonC. Hernan Cortesd. Francisco Pizzaro Please anyone help me 38 points Connecting to a larger contextSource: President James Buchanan, fourth annual message to Congress (December 3, 1860)". . . All for which the slave States have ever contended, is to be let alone and permitted to manage their domestic institutions in their own way. As sovereign States, they, and they alone, are responsible before God and the world for the slavery existing among them. . . ."The Southern States, standing on the basis of the Constitution, have a right to demand this act of justice from the States of the North. Should it be refused, then the Constitution, to which all the States are parties, will have been willfully violated by one portion of them in a provision essential to the domestic security and happiness of the remainder. In that event the injured States, after having first used all peaceful and constitutional means to obtain redress, would be justified in revolutionary resistance to the Government of the Union. . . ."Write a short paragraph that connects this excerpt from document 2 to its larger historical context during the era in question. After your paragraph, explain how you are meeting the essays requirements for contextualization. (5 points) Select the graph that matches the equation. y= - x\2 + 1 How many dots would surround Li in an electron dot diagram? 5/6 x 8/6 will become..... A. smaller because both fractions are less than oneB. become smaller because both fractions are bigger than 1C. stay the sameD. become larger because 8/6 is larger than 1 NEED HELP! GIVING BRAINLIEST!