Name & describe the six essential activities of the digestive tract.

Answers

Answer 1

Answer:

Ingestion: Consuming something orally, whether it be food, drink, medicine, or other substance; the first step of digestion. bolus: a round mass of something, especially of chewed food in the mouth or alimentary canal.

Propulsion: Propulsion means to push forward or drive an object forward. A propulsion system is a machine that produces thrust to push an object forward. On airplanes, thrust is usually generated through some application of Newton's third law of action and reaction.

Mechanical Digestion: 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.

Chemical Digestion: Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.

Absorption: Absorption is a condition in which something takes in another substance. The process of absorption means that a substance captures and transforms energy. The absorbent distributes the material it captures throughout whole and adsorbent only distributes it through the surface.

Defecation: Defecation is the term given for the act of expelling feces from the digestive tract via the anus.

Explanation:

Hope this helps <3


Related Questions

3) In order for an ecosystem to thrive, it needs to exist in a form of harmony and balance between its biotic and abiotic factors. Describe how small changes to both biotic and abiotic components can have major effects on an ecosystem.

Answers

Answer:

Changing temperature causes extinction or removal of organism from that place.

Explanation:

Small changes to both biotic and abiotic components can have major effects on an ecosystem because these are the factors on which the ecosystem depends. For example, if the temperature of the ecosystem increases from its limit, it makes the environment unfavourable for the organism so due to this change, the organism migrated to other location otherwise they will die due to unfavourable environment.

A circular ring of DNA that typically exists in bacteria and that codes for certain traits is known as a/n

Answers

Answer is  Plasmid.

A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes. Often, the genes carried in plasmids provide bacteria with genetic advantages, such as antibiotic resistance.

Study the diagram of gametogenesis where egg cells and sperm cells
undergo meiosis I and meiosis II. Note the number assigned to each cell.
Identify the number of chromosomes in the different cells, represented
by a circle, by writing the symbol N for haploid and 2N for the diploid.
Write your answers on a separate sheet of paper.​

Answers

A diploid cell undergoes meiosis to produce one egg and 3 polar bodies with 23 chromosomes each.

What happen during the egg formation?

During egg formation in the ovary, Primary oocyte (diploid) having 46 chromosomes undergoes meiosis I to form one secondary oocyte and one first polar body.

Both the secondary oocyte and one polar body are haploid having 23 chromosomes.  Both daughter cells then undergo meiosis II, the first polar body divides to give two polar bodies and the secondary oocyte divides by meiosis II to form one ovum.

Therefore, during egg formation in the reproductive system, a diploid cell (a primary oocyte) undergoes meiosis to produce one egg and 3 polar bodies with 23 chromosomes each.  

To learn more about meiosis click here:

https://brainly.com/question/11622266

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The question is What serves as the ultimate control center of the body overseeing all communication among the organ systems?

Answers

Answer:

nervous system

Explanation:

the cns oversees every action our body does

Read the following selection and answer the question. On a September day in 1999, people began to notice that Lake Jackson in the Panhandle region of northern Florida was shrinking. Within a few days, it was almost gone. A sinkhole had opened beneath the lake and drained it, along with all of its inhabitants including fish and alligators. As aquifers lose water, rock and soil layers can become weaker and less capable of supporting overlying layers of earth and any human structures built upon them. In such cases, the land surface above may subside, or sink. Sometimes subsidence can occur locally and suddenly in the form of sinkholes, which are areas where the ground gives way with little warning. Once the ground subsides, soil becomes compacted, losing the porosity that enabled it to hold water. Recharging a depleted aquifer may therefore become more difficult. Sinkholes occur when?

Answers

Answer:

Sinkholes occur when water from the groundwater has been removed in excess.

Explanation:

Sinkholes are empty spaces in the ground that occur due to the landslide of large volumes of land, creating craters of different sizes. This landslide takes with it everything that is on top of it, such as houses, animals, streets and even entire buildings. While these holes can occur due to engineering flaws, the most common reason is the excessive use of groundwater, which creates an empty space in the interior of the soil and causes the earth to sag.

how does natural selection impact the way a population adapts?

Answers

Answer:

The organisms with the more desirable traits will survive and pass on their genes.

Explanation:

"Natural selection" is pretty much "survival of the fittest." This means that the organisms who have a better chance of surviving and reproducing will control the way a species adapts. For example, there may be a mutation in a species of moths that make their wings more brown instead of yellow (just threw a random color out there). Well, the moths born with the mutation that turns their wings brown will likely live longer and be able to reproduce more because they can blend in with their environment better. So, as a result, their mutation can get passed on and the species will adapt to have more moths with brown wings.

Which of the following structures are NOT involved in asexual reproduction?
A. Gametes B. Roots C. Stem D. Tuber

Answers

Answer:

Which of the following structures are not involved in asexual reproduction? Gametes.

Explanation:

So option A. Have a great summer. This is the correct answer.

Question 3 of 10
What is altitude?
A. A certain distance north or south of the equator
B. The movement of a large mass of air
C. A mass of flowing ocean water
D. The measure of height above sea level
SUBMIT
Need ASAP pleaseeeee

Answers

I think it’s D not entirely sure tho

Answer:

D.

Explanation:

base on my research..the correct answers is letter D

Which statement about identical twins is TRUE?

A. They have identical DNA in all of their cells.

B. They are not genetically identical to each other.

Answers

Answer:

A. They have identical DNA in all of their cells.

Explanation:

Identical twins are also known as monozygotic twins. They result from the fertilization of a single egg that splits in two. Identical twins share all of their genes and are always of the same sex. In contrast, fraternal, or dizygotic, twins result from the fertilization of two separate eggs during the same pregnancy.

Answer:

A. They have identical DNA in all of their cells.

Explanation:

All of the cells in your body share the same DNA as was found in that first cell.

help me pls i will mark you as brainliest

Answers

Answer: first qusetion the last one       and the second the third

Explanation:

Answer:

I guess the answer for the first picture is no.A that is consume a wide variety of food.

What makes Protists different from the Bacteria kingdoms?

A. They are easier to find.

B. Their cells have a nucleus.

C. They are bigger.

Answers

Answer:

B. Their cells have a nucleus.

Explanation:

The primary difference between them is their cellular organization. Bacteria are single-celled microbes and are prokaryotes, which means they're single-celled organisms lacking specialized organelles. ... In contrast, protists are mostly single-celled eukaryotic organisms that are not plants, fungi, or animals.

Answer:

B. Their cells have a nucleus.

Explanation:

Protists are different from the Bacteria kingdom because, their cells have a nucleus.

importance of ammonification​

Answers

Answer:

Ammonification is crucial for providing living organisms with the essential nitrogen that they need.


[tex]what \: is \: endoplasmic \: reticulum \: {?} \: [/tex]

Answers

Answer:

They are elaborate network of channels running through the cytoplasm. There are two types of endoplasmic reticulum. They are; Rough and smooth endoplasmic reticulum. Rough endoplasmic reticulum are rough because of the presence of ribosomes. Smooth endoplasmic reticulum are smooth because they dont have ribosomes.

meaning:an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins

how might a country run out of water​

Answers

Answer

Along with decreasing rainfall comes rising temperatures. By 2050 the U.S. could be as much as 5.7°F warmer, and extreme weather events, such as heatwaves and drought, could be more intense and occur more frequently. As temperatures warm, evaporation increases, further decreasing water in lakes, reservoirs, and rivers.

During strenuous exercise, lactic acid fermentation begins because the muscle cells are not getting enough


water

glucose

oxygen

ATP

Answers

Answer:

oxygen

Explanation:

Without oxygen aerobic respiration cannot occur. Therefore ATP is produces by anaerobic reparation which is from glycolysis only. Lactate/ lactic acid is formed when glycolysis is the only production of ATP.

Which statement best describes energy entering the living world?

a) solar energy to chemical energy

b) chemical energy to solar energy

c) solar energy to heat energy

d) heat energy to solar energy

Answers

Answer:

a. solar energy to chemical energy

Answer:

A .Solar energy to chemical energy

Explanation:

How does sugar leave the phloem?

Answers

The high turgor pressure drives movement of phloem sap by “bulk flow” from source to sink, where the sugars are rapidly removed from the phloem at the sink. Removal of the sugar increases the Ψs, which causes water to leave the phloem and return to the xylem, decreasing up

Which process produces genetically identical cells?

A. Meiosis

B. Mitosis

Answers

Answer:

mitosis produce genetically identical cells

Answer:

B mitosis i think .......

Hello, I need to know what is at least one reason that their is Global Warming. Whats causing it?

Answers

Answer:

Increased heat, drought and insect outbreaks, all linked to climate change, have increased wildfires.

Explanation:

Hope this helps!

According to the graph, which region's population is expected to get smaller
between 2010 and 2050?

Answers

Answer:

Europe

Explanation:

it's the only line that slopes downward between 2010 and 2050

in your own words, what is the definition for Exocytosis?

Answers

Answer:

the release of cellular substances.

Explanation:

hope this helps

62.5 milligrams into grams

Answers

Explanation:

62.5 = 0.0625 g

your answer is like this

You have learned that scientists have found physical evidence of the Flood. In this project you will think about Noah and his construction of the ark.



Pretend that you are a newspaper reporter, and you are able to interview Noah. Then write a newspaper article about your interview.



Answer these questions.

What kinds of questions would you ask him?



Write a news article on your interview with Noah. (100 words or more is fine)
Need help asap just answer write the article the first 1 i already answered just copy pasted the questions

Answers

Answer:

We got a chance to speak to Noah the Ark builder. Many people of the town have been wondering what Noah has been building lately. We asked him what was his objective and he said "A great flood like no other will come, water from the sea will fall from the air. Whoever is in the ark shall be safe. Two of each type of animal on earth shall come to my ark for shelter. The storm will be so great it will knock out all who does not inhabit the ark."It is hard to understand what he means by these statements but who knows maybe his boat will take him somewhere. The people of the town have been calling him insane, since no one would need a boat that big.

(I'm guessing that you mean the interview was before the flood since everyone died after.)

During which phase of the cell cycle are chromo-
somes copied?

Answers

Answer:

S phase

Explanation:

S phase is the second phase of interphase (longest phase where cell grows and replicates it's DNA and does it function. It is broken up into smaller sub phases). S phase is the synthesis phase. During this phase chromosomes are replicated ( The DNA is copied).

Cells created by meiosis can be
represented by which of the following?
A.2B
B.B
C.2N
D.N

Answers

Answer:

D. N

Explanation:

Meiosis is a kind of cell division which produces daughter cells that are genetically different from the parent cell and have a reduced number of chromosomes (by half).

Meiosis occurs only in reproductive cells to produce gametes. If a diploid (2n) cell undergoes meiosis, a haploid (n) daughter cell will result. This means that the chromosome number has been reduced by half in order to maintain the chromosomal number of the next generation.

How are meiosis and mitosis different?

'FREE BRAINLIEST INCLUDED'

Answers

Answer:

a is the write answer

Explanation:

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

Hope that helps :)

Why is the percentage of food eaten a good
number to use? Explain.
I
Intro

Answers

Answer:

The percentage of food gives an idea about the food availability for the species of organisms. If the food percentage is high the species is observed to be more successful; on the other hand if the percentage is low the species is found to shrink in numbers.

hope it helps

if you have been victimized by fake news how can you respend?

pasagot plss!!!​

Answers

Question

If you have been victimized by fake news how can you respond?

Answer

If i have been victimized by fake news i already do.. is to stop the spreading of these fake news This goes beyond just not sharing news stories until i have determined they are genuine, but also not sharing fake news. When you share a piece of fake news you are raising its publicity and advertisement revenues.

Hope my answer will help you ^^

#LearnWithBrainly

Evaluating resources
As we have seen, information on the Internet can take many forms and come from a variety of sources. Critical news consumers need to be able to review this information to determine who is writing it, who is publishing it, why it was written, and assess the content of the piece. To do this, you must be able to evaluate your sources.

Explore the Library's Evaluating Resources guide for useful information on evaluating websites and evaluation methods.

Just by looking at the guinea pig, you would be able to tell if its genotype were HH or Hh.
A. True

B. False

Answers

Answer:

it depends on where your going to be looking if you look at the genitals then A true but, if your looking at just the body and head B

Answer:

B. False

Explanation:

HH and Hh have the same phenotype, so you could not determine the genotype of the guinea pig just by looking at it.

is eczema recessive or dominant? explain why or how.

Answers

Answer:

When caused by CARD11 gene mutations, atopic dermatitis has an autosomal dominant inheritance pattern , which means one copy of the altered CARD11 gene in each cell is sufficient to cause the disorder.

Explanation:

pls mark brainlest

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