1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
padilas [110]
3 years ago
10

During human digestion, the bolus enters the stomach through the esophagus via the lower esophageal sphincter. The stomach relea

ses proteases and hydrochloric acid, which kills or inhibits bacteria and provides the acidic pH of 2 for the proteases to work. Food is churned by the stomach through muscular contractions of the wall called peristalsis and the bolus is converted into chyme. According to the text, the stomach's environment is very acidic. How does this acid stay in the stomach?
Biology
1 answer:
AveGali [126]3 years ago
6 0

The stomach is protected from the hydrochloric acid by epithelial cells, which secrete a bicarbonate substance that covers the mucosa. Since the bicarbonate solution is alkaline, it neutralizes the hydrochloric acid produced by parietal cells and subsequently results in formation of water. Importantly, the consistent secretion of the bicarbonate solution is what protects the stomach from the strong acidic environment.





You might be interested in
Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species. M
padilas [110]

Answer:

Embryology: the study of similarities in embryos of organisms to find common connections

Developmental biology:  the study of life cycles of organisms to find common

Molecular biology: the analysis and comparison of DNA to better understand relationships between species

comparative anatomy: the study of the anatomy of an organism to explain evolutionary similarity

Explanation:

Embryology can be described as the branch of biology in  which studies about the sex cells, the process of fertilization and the development of the fetus or embryo are made. The similarities between the embryos show evolutionary history among different organisms.

Developmental biology can be described as the branch of biology in which studies are made about the processes of growth and developmental procedures about organisms. Organisms belonging to different groups can also show developmental similarities if they have a common ancestor.

Molecular biology is the branch of biology which is related to the study of life on molecular level. At this level, similarities between the genome of organisms can be checked for evolutionary histories.

Comparative anatomy: It is the branch of biology in which organisms are studies based on the similarities and differences in their structures.

5 0
3 years ago
9- The results of this type of DNA analysis are often used to help
juin [17]

Answer:

B) if two species are closely related.

Explanation:

DNA analysis is used to determine the relationship between two species in order to check their relations with each other because DNA molecules has all the information about the organisms. If there is more similarities between two organisms so they are more closely related to each other while on the other hand, if there is no similarities between two species so we can say that there is no relationship exists between two organisms or species. All this discussion  describes the usefulness of DNA analysis.

7 0
3 years ago
What stimulates cell division?
Gala2k [10]
Metabolic pathways stimulate cell division.
5 0
3 years ago
Read 2 more answers
Explain how critical thinking helps scientists analyze information for accuracy and bias.
Feliz [49]

Answer:

Critical thinking requires scientists to ask questions about information they come across and assess its validity. This facet of critical thinking helps them avoid bias that originates from personal opinion and helps them distinguish information and fact from common belief.

4 0
3 years ago
Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out
belka [17]

Answer:

Asexual Reproduction: Mitosis, genetic sameness

Sexual Reproduction: Meiosis, produces gametes, genetic variation,

Both: Nuclear Division, DNA replicated

Not too sure about the DNA replication but i hope this helps !

3 0
3 years ago
Other questions:
  • Explain how a crayfish is designed to be a bottom feeder.
    13·1 answer
  • URGENT!!<br> please help me solve this i really don’t understand it
    14·1 answer
  • What causes skeletal muscle relaxation? A) nhibitory interneuron releases GABA onto muscle B) Descending neurons from brain dire
    7·1 answer
  • The _____ surrounds the nucleus of the cell and helps assemble and package materials made in the cell
    8·1 answer
  • Cellulose is a:_____________.
    14·2 answers
  • Which three types of pathogens cause disease by trying to get nutrients from your body?
    10·1 answer
  • Color blindness is a sex linked recessive trait. A mother with normal color vision and a color blind father have a colorblind da
    13·2 answers
  • HURRYYY !!!! <br> Which statement describes how technology has increased our information on mars ?
    14·2 answers
  • A trend in the evolution of plants has been an increase in the size of plants and a decreasing dependence on water for reproduct
    15·1 answer
  • If some bacteria are resistant to tetracycline and some are not resistant, what happens when a patient is given tetracycline for
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!