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

most of the surface area of a plasma membrane consists of

Answers

Answer:

50% liquid and 50% protien by wieght

True or False: Transcription and Translation can occur at the same time for a single mRNA in prokaryotes.

Answers

Answer:

False, they cannot

This pedigree chart tracks the inheritance of a recessive trait that is not linked. Based on the information in the chart, which of the following statements is true?

Individual #8 must be for the trait.
Individual #10 must be for the trait.
Individual #13 must be .
Individual #3 must be .

Answers

Answer:

A. Individual #8 must be heterozygous for the trait.

Determine which of the following steps cannot occur in the rock cycle.


magma → sedimentary rock

sedimentary rock → metamorphic rock

metamorphic rock → magma

igneous rock → sediment

thanks :)

Answers

Answer:

magma > sedimentary rock

Explanation:

magma can only be cooled into an igneous rock but cannot directly be formed into a sedimentary rock.

What type of solution causes a cell to shrink in size?
O Isotonic
O Homeotonic
O Hypertonic
O Hypotonic

Answers

Hypertonic C. I think answer correct.

the heart of an embryo starts to pump blood by the ________.

Answers

Answer:

fourth week of pregnancy

Explanation:

Mark me brainly please

Emerging from the placenta is the umbilical vein, which carries oxygen-rich blood from the mother to the fetal inferior vena cava via the ductus venosus to the heart that pumps it into fetal circulation.

Where does fertilization of an ovum occur?

Answers

Answer:

a. In the fallopian tubes

Explanation:is correct. post protected

which hormone signals the breakdown of glycogen in the liver increasing glucose in the blood?

Answers

Answer:

The answer is glucagon

Explanation:

When the blood sugar level drops down, the glucagon hormone converts the glycogen into glucose and raises its level in the bloodstream.

Glycogen is a main source of energy for the body. Glycogen is stored in the liver. When the body needs more energy, certain proteins called enzymes break down glycogen into glucose. They send the glucose out into the body.

Which hormone stimulates the breakdown of glycogen in the liver into glucose?

Glucagon's role in the body is to prevent blood glucose levels from dropping too low. To do this, it acts on the liver in several ways: It stimulates the conversion of stored glycogen (stored in the liver) to glucose, which can be released into the bloodstream.

How does glucagon increase blood glucose?

When your blood glucose levels trend lower or fall too low (hypoglycemia), your pancreas releases more glucagon. Glucagon helps blood glucose levels rise back up in multiple ways, including Glucagon triggers your liver to convert stored glucose (glycogen) into a usable form and then release it into your bloodstream.

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All nine essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity

Answers

Answer:

All 9 essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity? Combining foods that complement each others essential amino acids.

Explanation:

I hope this helps!

The primary electron acceptor in photosystem II is __________. Group of answer choices P700 P700 P680 P680

Answers

Answer:

680

Explanation:

When the P680 special pair of photosystem II absorbs energy, it enters an excited (high-energy) state. Excited P680 is a good electron donor and can transfer its excited electron to the primary electron acceptor, pheophytin.

how many feet of intestines does the average person have

Answers

Research suggest that the combined length of the small and large intestines is at least 15 ft in length. The small intestine can measure about 9-16 ft while the large intestine is roughly 5ft long.

What are the missing coefficients for the skeleton equation below? N2+ H2-->

NH3

(A)3,1,2 (B)1,3,3 (C)1,3,2 (D)1,1,2 (E)2,6,6

Answers

I choose the option C.
N2 + 3H2 = 2NH3

organisms that have bigger genomes are more complex than organisms with smaller genomes.

Answers

Not necessarily. There is a Japanese flower (Paris japonica) that has a genome 50x larger than the human gene.

How do CAM plants photosynthesize under bright hot conditions without drying out?

Answers

Answer:

by sealing their leaves against water loss and trapping carbon as organic acids

Explanation:

hope this helps :)

what happens if the body produces the wrong proteins

Answers

Answer:

Gain of toxic function, Look-ahead effect, Ribosome skipping:

Explanation

Hope it helps

Observa el mapa de las fallas tectónicas de la Hispaniola y luego escribe las instrucciones

Porfa díganlo. rapido

Answers

Answer:

El 14 de agosto de 2021, un terremoto de magnitud 7,2 sacudió Haití. El terremoto más grande en la región desde 2010, el desastre dejó al menos 2,000 personas muertas, 12,000 personas heridas y casi 53,000 casas destruidas.

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST

Answers

Answer: 50% will be purple
There’s a 50% chance the genes will be heter*zygous (Pp, purple flower) and 50% chance they will be hom*zygous recessive (pp, white flower)
Punnet square drawing attached

Factors
Increase or Decrease
in Carrying Capacity?

Answers

Answer:

Carrying capacity, or the greatest number of people that an environment can support over time without harming or degrading it, is controlled by a few basic factors: food supply, water availability, and space. Carrying capacity, or the greatest number of people that an environment can support over time without harming or degrading it, is controlled by a few basic factors: food supply, water availability, and space.

Explanation:

Which of the following is a good way to prevent tonsillitis?

Answers

Answer:

d. All of the above

Explanation: is correct and post protected

Drug Y inhibits the activity of parasympathetic information. Which cranial nerve would possibly be affected

Answers

The cranial nerve III, VII, IX, and X regulate the activity of parasympathetic information.

If a cell being observed has been magnified 200x under the HPO with a magnification of 40x, what is the magnifying power of the eyepiece used?​

Answers

Answer:

5x

Explanation:

I hope this helps you!

when nonsister chromatids exchange genes it is called:

Answers

Answer:Chromosomal crossover, or crossing over

Explanation:

Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant chromosomes.

the male reproductive system and the urinary system share which organ?

Answers

Which part of the urinary system is shared with the reproductive system in males? Well, the (urethra) conducts urine for the urinary system and semen for the reproductive system in males.

The answer is urethra

Which of these choices is a benefit of the Endangered Species Act?

A. Can prohibit removal of dangerous animals
B. Can interfere with economic progress
C. Can cost a lot of money to enforce
O D. Can save species from extinction

Answers

Answer:

D. Can save species from extinction

Explanation:

As saving species from extinction is what Endangered Species Act would want as endangered means that the animal is close to dying and is in danger of being there no longer

Benefits of the Endangered Species Act can prevent the extinction of certain species. So, the correct option is D.

What is Endangered species Act?

One of America's most important and effective environmental legislation is the Endangered Species Act. It shows that Americans are willing to cooperate in order to preserve and safeguard the species that are most in danger of going extinct for good.

For landowners, government organisations, and concerned citizens, the legislation offers reasonable, well-balanced options for preserving endangered wildlife and its ecosystems. There are three crucial components in it:

1. Preventing harm or extinction of the listed species

2. Creating strategies to reestablish healthy populations

3. Protecting habitat, which is crucial to the survival of these species.

Therefore,  the correct option is D.

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During cellular respiration, most of the ATP energy generated comes from the electron transport chain. True false question. True False

Answers

Answer:

A true

Explanation:

only 4 at is created outside the electron transport chain

but cellular respiration produces at net gain of 36 atp

thus the other 32 atp comes from the electron transport chain

Aupporting cells of the nervous system are collectively called:

Answers

Supporting cells of the nervous system are collectively called neuroglia.

Answer:

They are called neuroglia or glial cells.

the group of blood disorders in which blood oxygen levels are inadequate to support normal metabolism is called

Answers

Answer:

anemia

Explanation:

the level of red blood cells in the body is lower than normal, which means that the body does not have enough oxygen :)

What is the term for the congenital absence of the urinary bladder?

Answers

Answer:

Urinary bladder agenesis

Explanation:

Bladder agenesis may be the result of secondary atrophy of the urogenital sinus, perhaps owing to the lack of distension with urine caused by failure of incorporation of the mesonephric ducts and ureters to develop into the trigone.

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if a cell is in a state in which it no longer divides then the cell is probably arrested at which stage of the cell cycle?

Answers

Answer:

Interphase

I

Explanation:

Interphase is the period of the cell cycle during which the cell is not dividing. The majority of cells are in interphase most of the time. Mitosis is the division of genetic material, during which the cell nucleus breaks down and two new, fully functional, nuclei are formed.

_____ mimic the process of natural evolution to generate solutions to optimization and search problems.

Answers

Search algorithms are used to generate solutions to optimization and search problems.

Search algorithms that mimic the process of natural evolution. Search algorithms can be used to generate solutions to optimization and search problems using techniques such as mutation, selection, crossover, and chromosome.

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