Contrast mechanical and chemical digestion.

Answers

Answer 1

Answer:

Chemical and mechanical digestion are the two methods your body uses to break down foods. Mechanical digestion involves physical movement to make foods smaller. Chemical digestion uses enzymes to break down food.

Explanation:

Answer 2

Answer:

While mechanical digestion involves physical movements, such as chewing and muscle contractions, chemical digestion uses enzymes to break down food

Explanation:


Related Questions

Question:
The table below shows three enzymes found in the human body and the pH of their locations.

Enzyme Body part PH
Ptyalin Mouth 6.5 - 7
Pepsin Stomach 1.0 - 3.0
Trypsin Small intestine 7.5 - 9.0

How will the activity of pepsin change after it moves with the food from the stomach to the small intestine?

Answer: CORRECT (SELECTED)
It will slow down because the environment is too basic.

Explanation:
Pepsin functions optimally in acidic environments, with a pH between 1.0 and 3.0. When it is moved outside of its optimal pH, enzyme activity will decrease.

Answers

The activity of the enzyme Pepsin  will ultimately slow down when it moves with food from the stomach to the small intestine.

What is an enzyme?

An enzyme is a biological catalyst proteins in nature that speeds u different reactions in the body.

We know that the activity of an enzyme has a lot to do with the optimum pH and temperature of the environment. This implies that an enzyme activity could be slowed down or the enzyme can even be denatured when the environment is not conducive.

As such, the activity of the enzyme Pepsin  will ultimately slow down when it moves with food from the stomach to the small intestine where the pH is a lot more basic.

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PLSS HELP ,, - - - A group of students were testing different insulators. They used three metal cans, one wrapped with bubble wrap, a second with a paper towel, and third unwrapped. Equal amounts of hot water were poured into each can and the temperature was noted at definite time intervals. The data is shown in the table.
From the data what can you conclude which is the best insulator?


Aluminum can wrapped with paper towel


Just the aluminum can


Aluminum can wrapped with bubble wrap

Answers

Answer:

Without the table, I can't be 100% certain, but I'm sure that your answer is C). It would only make sense, considering the fact that if bubble wrap is being used, you've put 2 layers of plastic and one layer of trapped air between the can and the hand of those who hold it, thus reducing the amount of thermal energy transfer.

Which statement below is true

Which statement below is true

Answers

Answer: NO

Explanation:

No

Answer:

the bottom right is the true one

Question 9 (1 point)
The producers that live in the abyssal zone are chemosynthetic because this zone has no what

Answers

Answer:

No sunlight penetrates the Abyssal zone.

Explanation:

I did this on my study guide a while back and got an A for it.

The set of human tail bones is an example of a(n) structure.​

Answers

Answer:

The set of human tail bones is an example of a vestigial structure.

Explanation:

3. The protein called melanocortin 1 receptor (MC1R) is coded for by the Mc1r gene. This protein is associated with fur coloration. A typical Mc1r gene causes melanocytes to produce more pheomelanin (light pigment) than eumelanin (“true” or dark pigment). A mutation in Mc1r results in the opposite expression.

a. Based on the genetic information in the table, how many mutations are found in the Pinacate dark rock pocket mouse population?

b. Based on the genetic information in the table, what are the similarities and differences between the non-Pinacate dark populations and the Pinacate light population? Consider the number of mutations, amino acids, and coat color.

Answers

Based on the genetic information in the table, their are 4 mutations are found in the Pinacate dark rock pocket mouse population.

What do you mean by mutations?

Inherited mutations include cystic fibrosis, hemophilia, and sickle cell anemia. Other mutations can occur spontaneously during a person's lifetime. These are called random, spontaneous or new mutations. They affect only a few cells.

Mutations can be caused by errors in DNA replication during cell division, exposure to mutagens or  viral infection. Germline mutations (occurring in eggs and sperm) can be passed on to offspring, but somatic mutations (occurring in body cells) cannot.

The G-T mutation is the  most common mutation in human DNA. It happens about once  every 10,000 to 100,000 base pairs—which doesn't sound like a lot until you consider that the human genome contains 3 billion base pairs.

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5 Cheryl has brown hair, green
eyes, and tanned skin. Which
of these traits results from
the environment that Cheryl
lives in?
A tanned skin
B brown hair
C green eyes
D freckles

5 Cheryl has brown hair, greeneyes, and tanned skin. Whichof these traits results fromthe environment

Answers

A tanned skin because if it was a cold cloudy environment she would be more fair

A codon is a set of three nucleotides that correspond to a specific amino acid. The table below shows various DNA codons andtheir corresponding amino acidsAmino Acid DNA Codon(s)Alanine GCT, GCC, GCA, GCGArginine AGA, AGG, CGT, CGC, CGA, CGGAsparagineAAT AACAspartic Acid GAI,Cysteine TGT, TGCGlutamic Acid GAA GAGGlutamine CAA CAGGlycine GGT, GGC, GGA, GGGHistadineCAT, CÁCIsoleucine ATT, ATC, ATALeucineCTT, CTC, CTA, CTG, TTA, TTGLysineAAA AAGMethionine (Start) ATGPhenylalanineTTT, TTCProlineCCT, CCC, CCA, CCGSerineTCT, TCC, TCA, TCG, AGT, AGCThreonine ACT, ACC, ACA ACGTryptophan TGGTyrosine TAT, TACValine GTT, GTC, GTA GTG,StopTAA, TAG, TGA+Two strands of DNA are identical except for one codon. As a result, they code for slightly different proteins. Based on theinformation in the table above, which of the following statements could be true?OA. One strand contains a ACG codon instead of ACAOB. One strand contains a CCC codon instead of CCAOC. One strand contains a CAC codon instead of CTCOD.One strand contains a CGC codon instead of CGG

Answers

We have to find those codons which don't codes for the same amino acid, so we can do the following:

Forested floodplain wetlands benefit from periodic flooding from rivers. When floodwaters spill into the wetland, they bring water and nutrients and leave both behind. But humans have often cut off floodplains from rivers by building roads, levees, berms, etc. Think about what would happen if a river could no longer flood into these areas. How would the resulting increased amount of water and nutrients in the river affect soils, hydrology, and life downstream?

Answers

Forested floodplain wetlands are rich in nutrients, and the flooding pattern from the river promotes nutrient flow from the land to the water and from the water to the land. This would resulting increased amount of water and nutrients in the river affect soils, hydrology, and life downstream.

Forested floodplain wetlands are rich in nutrients.This nutrient-rich environment sustains diverse wildlife, including rare and endangered species such as the Louisiana pine snake and the black bear. Floodplains, particularly in the Mississippi Valley, also support high-value agriculture.

Because of the value of floodplain land for agriculture, there has been significant human activity in these areas over the years.

Humans have built structures such as levees, berms, and channels to control the flow of floodwaters.

The results of this human activity have been both positive and negative.

Negative effects of human activity include the fact that humans have cut off floodplains from rivers, which reduces the natural exchange of water and nutrients between the land and the water.

Without regular flooding, the nutrients that would have been deposited on the land are carried downstream by the river, and the soil in the floodplain becomes depleted over time.

This depletion of nutrients in the soil and the fact that the water no longer reaches the land can lead to long-term damage to the ecosystem and a reduction in biodiversity.

This reduced biodiversity could lead to the extinction of rare or endangered species that depend on this environment for survival.

Positive effects of human activity include the construction of levees and other structures that prevent flooding and protect people from the negative effects of flooding.

This allows people to live and farm in flood-prone areas without being exposed to the risks associated with flooding. The downside is that these structures can reduce the amount of water that reaches the land, which can lead to the depletion of nutrients in the soil.

As a result, it is essential to find a balance between protecting people and the environment.

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Did you notice a difference in the protists when the slowing agent was used? Which members were you able to see more clearly? Were there species that were still moving too fast to see clearly? Could you identify any species specifically? Do any of them look similar to specimens you observed in the first lab?

Answers

Yes. The difference was clear that they wouldn’t be doing a lot of work for the others to be a better team but y’all have

Answer:

Yes, they one with slowing agent seemed to be doing more work to propel itself.

Explanation:

tiny cell structures that carry out specific functions within the wall

Answers

Answer:

Organelles are tiny cell structures that carry out specific functions with-in the cell.

10. The atoms C, H, O makes up which of the carbon-based molecules below.
A. Carbohydrates and Protiens
B. Carbohydrates and Lipids
C. Nucleic Acids
D. Lipids

Answers

Answer: Lipids

Explanation:

. The atoms C, H, O makes up which of the carbon-based molecules below.

A. Carbohydrates and Protiens

B. Carbohydrates and Lipids

C. Nucleic Acids

D. Lipids

Although the total distance the impulse travels in the reflex arc is less than 3
metres. the time taken is more than 0.04 seconds. Suggest why the time taken is
more than expected.

Answers

Although the total distance the impulse travels in the reflex arc is less than 3 meters. the time taken is more than 0.04 seconds and the time taken is more than expected because of Synapses or due to gaps between neurons.

Diagram displays the whole reflex arcs from the tip of the finger to the spinal cord and then back out to a closer muscle, possibly in the forearm or the arm. Because the signal doesn't have to go all the way back to the finger, the total distance is less than 3 meters. Considering that it just travels back a portion of the way, less than 3 meters, it takes. Let's see, it takes more than twice as long, therefore the query makes us think about why the delay. Where is the hold-up what is happening there, and the key to this is that the gray matter of the spinal cord doesn't truly contain mylin, despite the fact that we said it- accelerates electrical conduction through the axon in the nerves of the extremities. Mylin has a whitish color, which contributes to the white matter's appearance of whitishness. Thus, the electrical signal becomes slower.

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which biomes likely has the thinnest layer of topsoil?

Answers

Answer:

the desert

Explanation:

Cellular Respiration Answer key worksheet

Answers

The Cellular Respiration worksheet is given in the image attached.

What is Cellular Respiration?

Cellular respiration is seen as a metabolic process that occurs in cells, where organic molecules are broken down to release energy in the form of ATP (adenosine triphosphate).

This process involves three main stages: glycolysis, the Krebs cycle, and oxidative phosphorylation. During glycolysis, glucose is broken down into pyruvate, which then enters the Krebs cycle, where it is further broken down to release energy-rich electrons.

Therefore, These electrons are then passed down a series of electron transport chains to produce ATP through oxidative phosphorylation. Cellular respiration is a vital process for all living organisms, as it provides the energy needed for various cellular processes and activities.

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Cellular Respiration Answer key worksheet

explain the importance of all 3 biomolecules in general and for making ATP.

Answers

The three biomolecules that are used for making ATP are Lipids (fats) , Carbohydrates and Proteins

The biomolecules also known as biological molecules serve a wide range of activities and they vary in shape and their size . It is also considered  essential to life because they help organisms develop, survive, and propagate. The biomolecules interact with one another  which play a role in the development of organisms .

There are four types of biological molecules which are carbohydrates which is used as an energy source , lipids which is used for storage and support , proteins is used for supporting essential vital functions and amino acids are the developing elements that make up proteins and nucleic acids for storing genetic information .

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what makes the producer level of the food pyramid so important

Answers

Answer:

"Producers form the base of food chains and food webs, and the energy they capture from light or chemicals sustains all the other organisms in the community."

which type of membrane transport generally requires that the transported substance dissolve in the lipid membrane?

Answers

Simple diffusion is the type of membrane transport generally requires that the transported molecule dissolved in the lipid membrane. (option B)

Simple diffusion is a type of passive transport in which molecules move across a cell membrane from the side where they are more concentrated to the side where they are less concentrated.

The lipid bilayer's structure allows small, uncharged substances like oxygen and carbon dioxide, as well as hydrophobic molecules like lipids, to pass through the cell membrane via simple diffusion. Charged atoms or molecules of any size are repelled by the hydrophobic tails in the interior of the phospholipid bilayer and thus cannot cross the cell membrane by simple diffusion.

The question is incomplete, it should be:

Which type of membrane transport generally requires that the transported molecule dissolved in the lipid membrane?

A) active transport

B) simple diffusion

C) facilitated diffusion

D) phagocytosis

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What subjects should i choose for grade 10-12 if i want to become a molecular biologist?

Answers

To become a molecular biologist, it's important to focus on building a strong foundation in science, particularly in subjects related to biology and chemistry. Here are some recommended subjects to consider for grades 10-12:

Biology: This subject is fundamental to understanding the principles of life, including cellular structure and function, genetics, molecular biology, and biochemistry. It forms the basis for further specialization in molecular biology.

Chemistry: A solid understanding of chemistry is crucial for molecular biology. Topics such as organic chemistry, inorganic chemistry, and biochemistry will provide a strong background for understanding the chemical processes that occur at the molecular level.

Mathematics: Strong mathematical skills are essential in many areas of science, including molecular biology. Focus on subjects like algebra, geometry, and calculus to develop problem-solving and analytical abilities.

Physics: While not directly related to molecular biology, physics provides a foundation for understanding principles of energy, forces, and motion. It can be beneficial for understanding certain aspects of molecular biology, such as biophysics or physical chemistry.

English/Language Arts: Communication skills are important for any career, including molecular biology. Developing strong reading, writing, and presentation skills will help you effectively convey scientific information and research findings.

Additionally, if your school offers advanced placement (AP) or International Baccalaureate (IB) courses in biology or chemistry, taking these can provide a more rigorous and in-depth understanding of the subject matter.

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How does the number of chromosomes in an organism's reproductive cells compare to the number of chromosomes in the organism's body cells? A. The reproductive cells have the same number of chromosomes as the body cells. B. The reproductive cells have twice as many chromosomes as the body cells. C. The reproductive cells have four times as many chromosomes as the body cells. D. The reproductive cells have half as many chromosomes as the body cells.

Answers

Answer: D. The reproductive cells have half as many chromosomes as the body cells.

The first organisms to move into an area after a primary disturbance are

Answers

Answer:

Small Organisms that can reproduce faster than others

Can you explain to me the acholic energy reaction (atp) you get from yeast

Answers

Fermentation is a way to obtain energy from carbohydrates when there is no oxygen available. Fermentation can be realized for many organisms, even when is not the main source of energy. For example, humans can realize lactic fermentation.

There are different types of fermentation depending on what substance is produced. In ethanol or alcoholic fermentation, the organisms take the carbohydrates and produce ATP, ethanol, and carbon dioxide. An example of organisms that perform alcoholic fermentation is yeast.

What results in fitness in biology

Answers

Answer:

It can be defined either with respect to a genotype or to a phenotype in a given environment. It describes the individual reproductive success and is equal to the average contribution to the gene pool of the next generation that is made by individuals of the specified genotype or phenotype. If this is a typing where you type the answer out, do not copy my answer exactly. You will get in trouble for plagerism.

hi i am swag? dghfjyfhvfhtd

Answers

Answer:

yes brainliest

Explanation:

yeah ur swag , so stop crying over them.




step by step explanation:

I need fast answer please!


Explain how 1st and 2nd law of thermodynamics applies to the trophic structure of an ecosystem?​

Answers

Answer:

First law: In the ecosystem, the energy flow from lower levels of the food chain to the highest levels

Second law: During energy transference between trophic levels, the main part of the energy is lost as heat and other processes.

Explanation:

The first law of thermodynamics states that the energy can not be created or destroyed, but instead it is transformed into one type to another. Moreover, the second law states that when energy is transformed an important proportion of this energy is lost as heat, and it increases the entropy level.

In an ecosystem, the energy flow is unidirectional, it means that energy flow from primary producers to primary consumers, then from primary consumers to secondary consumers and so successively in all levels. Moreover, organisms fight against entropy by converting foods into energy (which is used to maintain order within their cells. During the feeding process, the energy intake is not 100 % efficient, it means that most part of the energy is lost as heat (approximately 90%), thereby increasing the entropy in the ecosystem.

Meat sharing can be considered an example of cooperation among primates. Which of the following is true about cooperative behaviors observed among primates?

a.Examples of cooperative behaviors include warning calls and group hunting.

b.Cooperative behaviors are by definition altruistic.

c.Cooperative behaviors are defined by primates working in pairs of two.

d.Cooperative behaviors are only observed among the great apes.

Answers

Answer:

A.) Examples of cooperative behaviors include warning calls and group hunting

This statement is true. Cooperative behaviors are commonly observed among primates, and they can take many forms, including sharing food, grooming, group hunting, and warning calls. These behaviors can benefit both the individual and the group as a whole, by increasing the chances of survival and reproductive success. It is also worth noting that not all cooperative behaviors are necessarily altruistic, as they can be motivated by various factors such as kin selection, reciprocity, or mutualism. Finally, cooperative behaviors are not limited to great apes and can be observed in many different primate species, including monkeys, lemurs, and tarsiers.

One of the favorites to win a marathon to be held at sea level has been invited by a sponsor to train in Bolivia (very high altitude place) for three weeks before the race. The sponsor has promised to fly him to the race a day before the race. Based on your understanding of hemoglobin function, would you advice the athlete to accept the invitation or continue with his/her plans to train at low altitude

Answers

Answer: At high altitude the body will get prepared for marathon.

Explanation:

The human body is able to adapt the high altitude by long-term and immediate acclimatization.  At high altitude the lack of oxygen is sensed at the carotid arteries. It causes the increase in rate of breathing or hyperpnea.

In addition at high altitude the heart beats faster, gradually the body will also compensate itself for low availability of oxygen and get prepared for marathon.

Which of the following would have the same DNA fingerprints?0000mother and daughterfather and sonNo two people have the same DNA fingerprint.identical twins

Answers

The answer would be No two people have the same.

It is quite known that there are no two people exists who share the same fingerprint with each other. It is a unique characteristic for each person.

Question 3 of 10
Which statement describes the redox reaction involved in photosynthesis?
A. It is a combustion reaction in which energy is released.
B. O₂ is removed from the atmosphere, and CO₂ is released.
C. CO₂ is removed from the atmosphere, and O₂ is released.
D. It transfers energy to ATP molecules so energy can be transferred.

Question 3 of 10Which statement describes the redox reaction involved in photosynthesis?A. It is a combustion

Answers

Answer: The statement 'CO2 is removed from the atmosphere, and O2 is released' describes the redox reaction involved in photosynthesis. It is a redox reaction.

Explanation:

Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)​

Answers

Answer:

Explanation:

To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."

i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:

    Y     Y

y   Yy  Yy

y   YY  YY

ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.

The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).

Question 2:

To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.

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