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
castortr0y [4]
3 years ago
12

What tissues are in the respiratory system?

Biology
1 answer:
seropon [69]3 years ago
7 0

Answer:

Simple squamous epithelium,stratified squamous epithelium,pseudostratified columnar epithelium

Explanation:

The respiratory system is made up of many different types of tissues and they differ according to their locations in the respiratory system.

1.Simple squamous epithelium: It is found within the alveoles of the lungs. These cells are single layer,flat (squamous) cells. It controls the permeability of blood vessels in the lungs. When you inhale it allows more oxygen to be absorbed in the  blood flows.

2.stratified squamous epithelium: It is found at mouth surface primarily tongue and throat . These cells are stratified that is they are many layered because everyday whatever we put in our  mouth and throat it protects from wear and tear. It gives physical protection from pathogens as well.

3.pseudostratified columnar epithelium: It is a lining of the nasal cavity trachea and bronchi. This layer is ciliary to trap patheogen on entering into the lungs.

.

You might be interested in
How many factors should a well-designed experiment test at one time?
LuckyWell [14K]
Only 1- the experiment can not show a cause and effect relationship if there are more than one factors contributing to the outcome.
3 0
3 years ago
The lactose (lac) operon in E. coli is an example of a repressed gene when lactose is not available in a cell. In 3-5 sentences
irakobra [83]

Answer:

Please find the detailed explanation of this statement below

Explanation:

Firstly, a repressed gene is a gene whose expression has been inhibited or repressed. The lac operon in E.coli bacteria is a regulatory unit containing structural genes, a single promoter and operator regions. The promoter is the region where the transcription enzyme (RNA polymerase) binds to in order to transcribe the genes in the lac operon. The structural genes in the lac operon can only be expressed in the presence of lactose sugar.

However, in the absence of lactose, LAC REPRESSOR, which is a transcription factor (protein), prevents the binding of RNA polymerase to the PROMOTER region by binding to the OPERATOR region of the lac operon. This inhibits the expression of the lactose genes in the operon.

Note that, the structural genes in the lac operon (lacZ, lacY, lacA) code for proteins that help break down lactose sugar for energy in the E.coli bacteria. Therefore, a bacteria cell with a repressed lac operon will be unable to degrade lactose sugar.

4 0
3 years ago
What might the colonists have harvested in 1621?
Ugo [173]
They have harvested potato's carrots, and more for it was thanksgiving.
3 0
3 years ago
Read 2 more answers
What people think about vaccine​
Brums [2.3K]

Answer:

i don't think the vaccine will help. a lot of people died from it.

Explanation:

8 0
2 years ago
N/a pls help me. Asap
Alik [6]

Answer:

D) antibiotic

Explanation:

Because there’s nothing you can do about a virus other than take the vaccine, but when you get it, you need antibiotics to help your immune system fight it off.

5 0
3 years ago
Other questions:
  • What piece of lab equipment would you use to conduct a small chemical experiment
    9·2 answers
  • Mendel was the first to understand that:1) Specific factors are responsible for inheritance2) The factors occur in pairs3) The f
    14·1 answer
  • A single piece of coiled DNA is known as a?
    14·2 answers
  • I couldn't understand what point 8 meant at all, what does that actually say
    12·1 answer
  • How many species are currently considered “critically endangered”?
    9·1 answer
  • What two factors affected the development of new species
    11·1 answer
  • The side chain of serine contains oxygen. water-soluble proteins often contain serine. where would the serine side chain most li
    14·2 answers
  • Select all that apply. Select the true statements about Eubacteria. Most live as decomposers and heterotrophs. Most only thrive
    14·1 answer
  • Which statement best compares transcription and translation?
    6·2 answers
  • DDT is a pesticide that has been used worldwide over the past 50 years. DDT is used to prevent insects from destroying crops and
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!