Which is an example of mechanical digestion that occurs in the human digestive system?

A. Saliva in the mouth acts to moisten and break apart food molecules.

B. The muscular lining of the esophagus pushes food from the mouth to the stomach.

C. The muscular walls of the stomach act to churn food back and forth.

D. Small molecules, such as glucose, are absorbed into the blood from the small intestine.

Answer:

Saliva in the mouth acts to moisten and break apart food molecules

An example of mechanical digestion that occurs in the human digestive system is saliva in the mouth acts to moisten and break apart food molecules.

Mechanical digestion entails physically breaking down food substances into smaller particles so that chemical digestion can proceed more quickly.

Chemical digestion involves digestive enzymes further degrading the molecular structure of ingested compounds into a form that can be absorbed into the bloodstream.

Thus, the correct option is A. Saliva in the mouth acts to moisten and break apart food molecules.

Learn more about mechanical digestion

https://brainly.com/question/1283194

#SPJ2

After synapsis has finished are the chromosomes identical?

A. Yes

B. No

(PLEASE HELP!! AND NO LINKS OR I’LL REPORT YOU!) True/False: Organisms can adapt to unfavorable environmental conditions in their lifetime.

How many dogs are in the world

explain the term.evapouration​

A green plant that makes its own food (glucose) by photosynthesis is called a

A.parasite
B.producer
C.Consumer
D.Omnivore

Does hereditary deafness affect the person's lifespan.

How many rings of cartilage make up the trachea?
1. 00
2. 50
3. 10
4. 20

What is needed for work to be done?

Which pair of elements can be used to determine the age of a fossil that is over one billion years old?
A.lead, which is radioactive, and uranium, which is stable

B.carbon, which is radioactive, and nitrogen, which is stable

C.argon, which is radioactive, and lead, which is stable

D.potassium, which is radioactive, and argon, which is stable

Organisms are classified as producers or consumers according to the way they

A. obtain energy
b. Release wastes
c. Produce offspring
d. move from place to place

What are the four different types of deserts?

Which of these best explains why birds and dogs both show gills in their early development?

A. Both organisms can breathe underwater.
B. Both organisms share a common ancestor.
C. Both organisms use them to process food when they are young.
D. Both organisms have different ways of forming their lungs.

Match the items. The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives. a. Granulated cytoplasm and lobed nucleus b. Blue staining granules c. Red staining granule d. Largest leukocyte, no granules e. Purple staining nucleus with thin rim of cytoplasm

What happens to lymph after it travels through the lymphatic system?

Individuals ------ when they work together to obtain resources. A.cooperate B.compete

please help , with the question on the picture

Cells routinely release wastes as they perform their functions. In the human body, this waste is often released into the bloodstream.

Which organ removes much of this waste from the bloodstream so that it can then also be removed from the body?
A.
the heart
B.
the stomach
C.
the kidneys
D.
the lungs

What is the relationship between the temperature of internal material and volcanic eruptions?


plz help.....

PLEASE HELP ME!! ^^^^^^

Sexual Reproduction

Geographic isolation

common DNA

predation

​

The first Adrick agricultural species to be altered by genetic modification words though soybean be right

Good ozone is being destroyed by:
A. UV rays
B. man-made chemicals
C. plants
D. the rising ocean

if earth suddenly had no moon, which biome would begin to change immediately and change most?

**short answer** *Describe the three stages of the cell cycle
of a eukaryotic cell.

EOC Biology STAAR prep
Four common relationships between organisms are listed in the box. Which statements best describe these relationships?

A. Relationships 1 and 4 are examples of mutualism. Relationship 2 is an example of commensalism. Relationship 3 is an example of parasitism.
B. Relationships 1, 2, and 4 are examples of mutualism. Relationship 3 is an example of parasitism.
C. Relationship 1 is an example of commensalism. Relationships 2 and 4 are examples of mutualism. Relationship 3 is an example of predation.
D. Relationships 1 and 2 are examples of commensalism. Relationships 3 and 4 are examples of mutualism.
Please explain, I don't want just an answer.

If a mRNA codon has ACU on it, the matching tRNA anticodon would have

Cancer is a disease that involves uncontrolled cell division caused by a genetic mutation. It can occur in almost any region in the body. So, cancer is essentially uncontrolled what
of what?

Will give brainliest ASAP

If a sexually reproducing organism was exposed to a harmful substance that caused it to use an asexual process to produce gametes what would be the result?

A-Gametes produced will be able to create offspring that are a better fit to the organism's environment

B-Gametes produced would each be unique increasing the genetic diversity of the organism's population

C-Gametes produced would be identical to the parent cells thereby lowering the genetic diversity of the population

Can someone help me??? I’m not good at science.

After studying the albedo values for Earth's surfaces, how might smoke filling the atmosphere affect the local forest temperature?